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776af48 @tenderlove PostgreSQL hstore types are automatically deserialized from the database...
tenderlove authored
1 ## Rails 4.0.0 (unreleased) ##
2
d70e023 @mhfs Added where option to add_index to support postgresql partial indices
mhfs authored
3 * Added support for partial indices to PostgreSQL adapter
4
5 The `add_index` method now supports a `where` option that receives a
6 string with the partial index criteria.
7
8 add_index(:accounts, :code, :where => "active")
9
10 Generates
11
12 CREATE INDEX index_accounts_on_code ON accounts(code) WHERE active
13
14 *Marcelo Silveira*
15
8270e4a @xuanxu Added `none` query method to return zero records.
xuanxu authored
16 * Implemented ActiveRecord::Relation#none method
17
18 The `none` method returns a chainable relation with zero records
19 (an instance of the NullRelation class).
20
21 Any subsequent condition chained to the returned relation will continue
22 generating an empty relation and will not fire any query to the database.
23
24 *Juanjo Bazán*
25
26 * Added the `ActiveRecord::NullRelation` class implementing the null
27 object pattern for the Relation class. *Juanjo Bazán*
28
336ff8a @hindenbug has_many/has_one, :dependent => :restrict, deprecation added.
hindenbug authored
29 * Added deprecation for the `:dependent => :restrict` association option.
30
31 Please note:
32
33 * Up until now `has_many` and `has_one`, `:dependent => :restrict`
34 option raised a `DeleteRestrictionError` at the time of destroying
35 the object. Instead, it will add an error on the model.
36
37 * To fix this warning, make sure your code isn't relying on a
38 `DeleteRestrictionError` and then add
39 `config.active_record.dependent_restrict_raises = false` to your
40 application config.
41
42 * New rails application would be generated with the
43 `config.active_record.dependent_restrict_raises = false` in the
44 application config.
45
46 *Manoj Kumar*
47
080bd83 @rafaelfranca Add `create_join_table` migration helper to create HABTM join tables
rafaelfranca authored
48 * Added `create_join_table` migration helper to create HABTM join tables
49
50 create_join_table :products, :categories
51 # =>
52 # create_table :categories_products, :id => false do |td|
53 # td.integer :product_id, :null => false
54 # td.integer :category_id, :null => false
55 # end
56
57 *Rafael Mendonça França*
58
59 * The primary key is always initialized in the @attributes hash to nil (unless
60 another value has been specified).
522c0fd @tenderlove The primary key is always initialized in the @attributes hash to nil (un...
tenderlove authored
61
a2dab46 @jonleighton Deprecate inferred JOINs with includes + SQL snippets.
jonleighton authored
62 * In previous releases, the following would generate a single query with
63 an `OUTER JOIN comments`, rather than two separate queries:
64
65 Post.includes(:comments)
66 .where("comments.name = 'foo'")
67
68 This behaviour relies on matching SQL string, which is an inherently
69 flawed idea unless we write an SQL parser, which we do not wish to
70 do.
71
8c0c083 @jonleighton Make it more explicit that the feature is deprecated, not removed.
jonleighton authored
72 Therefore, it is now deprecated.
73
74 To avoid deprecation warnings and for future compatibility, you must
75 explicitly state which tables you reference, when using SQL snippets:
a2dab46 @jonleighton Deprecate inferred JOINs with includes + SQL snippets.
jonleighton authored
76
77 Post.includes(:comments)
78 .where("comments.name = 'foo'")
79 .references(:comments)
80
81 Note that you do not need to explicitly specify references in the
82 following cases, as they can be automatically inferred:
83
84 Post.where(comments: { name: 'foo' })
85 Post.where('comments.name' => 'foo')
86 Post.order('comments.name')
87
88 You also do not need to worry about this unless you are doing eager
89 loading. Basically, don't worry unless you see a deprecation warning
90 or (in future releases) an SQL error due to a missing JOIN.
91
92 [Jon Leighton]
93
f82e244 @tenderlove dropping support for `schema_info`.
tenderlove authored
94 * Support for the `schema_info` table has been dropped. Please
95 switch to `schema_migrations`.
96
6769293 @tenderlove connections must be checked in at the end of a thread
tenderlove authored
97 * Connections *must* be closed at the end of a thread. If not, your
98 connection pool can fill and an exception will be raised.
99
00318e9 @jonleighton Add some doc for ActiveRecord::Model
jonleighton authored
100 * Added the `ActiveRecord::Model` module which can be included in a
101 class as an alternative to inheriting from `ActiveRecord::Base`:
102
103 class Post
104 include ActiveRecord::Model
105 end
106
107 Please note:
108
109 * Up until now it has been safe to assume that all AR models are
110 descendants of `ActiveRecord::Base`. This is no longer a safe
111 assumption, but it may transpire that there are areas of the
112 code which still make this assumption. So there may be
113 'teething difficulties' with this feature. (But please do try it
114 and report bugs.)
115
116 * Plugins & libraries etc that add methods to `ActiveRecord::Base`
117 will not be compatible with `ActiveRecord::Model`. Those libraries
118 should add to `ActiveRecord::Model` instead (which is included in
119 `Base`), or better still, avoid monkey-patching AR and instead
120 provide a module that users can include where they need it.
121
122 * To minimise the risk of conflicts with other code, it is
123 advisable to include `ActiveRecord::Model` early in your class
124 definition.
125
126 *Jon Leighton*
127
96838b5 @tenderlove can create hstore records via AR API
tenderlove authored
128 * PostgreSQL hstore records can be created.
129
776af48 @tenderlove PostgreSQL hstore types are automatically deserialized from the database...
tenderlove authored
130 * PostgreSQL hstore types are automatically deserialized from the database.
131
9725c0c @fxn syncs 3-2-stable CHANGELOGs in master
fxn authored
132
b4b2f5d @simi Update activerecord/CHANGELOG.md
simi authored
133 ## Rails 3.2.1 (January 26, 2012) ##
9725c0c @fxn syncs 3-2-stable CHANGELOGs in master
fxn authored
134
135 * The threshold for auto EXPLAIN is ignored if there's no logger. *fxn*
136
152a393 @pacoguzman Update changelogs with rails 3.0-stable branch info
pacoguzman authored
137 * Call `to_s` on the value passed to `table_name=`, in particular symbols
138 are supported (regression). *Sergey Nartimov*
139
9725c0c @fxn syncs 3-2-stable CHANGELOGs in master
fxn authored
140 * Fix possible race condition when two threads try to define attribute
152a393 @pacoguzman Update changelogs with rails 3.0-stable branch info
pacoguzman authored
141 methods for the same class. *Jon Leighton*
9725c0c @fxn syncs 3-2-stable CHANGELOGs in master
fxn authored
142
143
6d426b1 @claudiob Add release date of Rails 3.2.0 to documentation
claudiob authored
144 ## Rails 3.2.0 (January 20, 2012) ##
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
145
7afbc89 @exviva Add ActiveRecord::Base#with_lock
exviva authored
146 * Added a `with_lock` method to ActiveRecord objects, which starts
147 a transaction, locks the object (pessimistically) and yields to the block.
148 The method takes one (optional) parameter and passes it to `lock!`.
149
150 Before:
151
152 class Order < ActiveRecord::Base
153 def cancel!
154 transaction do
155 lock!
156 # ... cancelling logic
157 end
158 end
159 end
160
161 After:
162
163 class Order < ActiveRecord::Base
164 def cancel!
165 with_lock do
166 # ... cancelling logic
167 end
168 end
169 end
170
171 *Olek Janiszewski*
172
838d30f @spastorino Add CHANGELOG entry
spastorino authored
173 * 'on' and 'ON' boolean columns values are type casted to true
174 *Santiago Pastorino*
175
35a1744 @drogus Allow to run migrations with given scope, with SCOPE=<scope>
drogus authored
176 * Added ability to run migrations only for given scope, which allows
177 to run migrations only from one engine (for example to revert changes
178 from engine that you want to remove).
179
180 Example:
181 rake db:migrate SCOPE=blog
182
7afbc89 @exviva Add ActiveRecord::Base#with_lock
exviva authored
183 *Piotr Sarnacki*
35a1744 @drogus Allow to run migrations with given scope, with SCOPE=<scope>
drogus authored
184
185 * Migrations copied from engines are now scoped with engine's name,
186 for example 01_create_posts.blog.rb. *Piotr Sarnacki*
187
de24ed9 @fxn removes the convenience instance version of AR::Base.silence_auto_explai...
fxn authored
188 * Implements `AR::Base.silence_auto_explain`. This method allows the user to
189 selectively disable automatic EXPLAINs within a block. *fxn*
0be5ada @fxn implements AR::Base(.|#)silence_auto_explain
fxn authored
190
0306f82 @fxn implements automatic EXPLAIN logging for slow queries
fxn authored
191 * Implements automatic EXPLAIN logging for slow queries.
192
193 A new configuration parameter `config.active_record.auto_explain_threshold_in_seconds`
194 determines what's to be considered a slow query. Setting that to `nil` disables
195 this feature. Defaults are 0.5 in development mode, and `nil` in test and production
196 modes.
197
198 As of this writing there's support for SQLite, MySQL (mysql2 adapter), and
199 PostgreSQL.
200
201 *fxn*
a382d60 @bogdan ActiveRecord::Relation#pluck method
bogdan authored
202
203 * Implemented ActiveRecord::Relation#pluck method
204
205 Method returns Array of column value from table under ActiveRecord model
00318e9 @jonleighton Add some doc for ActiveRecord::Model
jonleighton authored
206
a382d60 @bogdan ActiveRecord::Relation#pluck method
bogdan authored
207 Client.pluck(:id)
208
209 *Bogdan Gusiev*
210
0e2477b @tenderlove Automatic closure of connections in threads is deprecated. For example
tenderlove authored
211 * Automatic closure of connections in threads is deprecated. For example
212 the following code is deprecated:
213
214 Thread.new { Post.find(1) }.join
215
216 It should be changed to close the database connection at the end of
217 the thread:
218
219 Thread.new {
220 Post.find(1)
221 Post.connection.close
222 }.join
00318e9 @jonleighton Add some doc for ActiveRecord::Model
jonleighton authored
223
0e2477b @tenderlove Automatic closure of connections in threads is deprecated. For example
tenderlove authored
224 Only people who spawn threads in their application code need to worry
225 about this change.
226
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
227 * Deprecated:
228
229 * `set_table_name`
230 * `set_inheritance_column`
7af719e @jonleighton Deprecate set_sequence_name in favour of self.sequence_name=
jonleighton authored
231 * `set_sequence_name`
1a474cc @jonleighton Deprecate set_primary_key in favour of self.primary_key=
jonleighton authored
232 * `set_primary_key`
f3c84dc @jonleighton Deprecate set_locking_column in favour of self.locking_column=
jonleighton authored
233 * `set_locking_column`
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
234
235 Use an assignment method instead. For example, instead of `set_table_name`, use `self.table_name=`:
0b72a04 @jonleighton Deprecate set_table_name in favour of self.table_name= or defining your ...
jonleighton authored
236
237 class Project < ActiveRecord::Base
238 self.table_name = "project"
239 end
240
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
241 Or define your own `self.table_name` method:
242
0b72a04 @jonleighton Deprecate set_table_name in favour of self.table_name= or defining your ...
jonleighton authored
243 class Post < ActiveRecord::Base
244 def self.table_name
245 "special_" + super
246 end
247 end
248 Post.table_name # => "special_posts"
249
250 *Jon Leighton*
251
10834e9 @joshsusser changelog & docs for GeneratedFeatureMethods
joshsusser authored
252 * Generated association methods are created within a separate module to allow overriding and
253 composition using `super`. For a class named `MyModel`, the module is named
254 `MyModel::GeneratedFeatureMethods`. It is included into the model class immediately after
255 the `generated_attributes_methods` module defined in ActiveModel, so association methods
256 override attribute methods of the same name. *Josh Susser*
257
e7b7b44 @fxn implements AR::Relation#explain
fxn authored
258 * Implemented ActiveRecord::Relation#explain. *fxn*
259
562583c @jonleighton Add ActiveRecord::Relation#uniq for toggling DISTINCT in the SQL query
jonleighton authored
260 * Add ActiveRecord::Relation#uniq for generating unique queries.
261
262 Before:
263
264 Client.select('DISTINCT name')
265
266 After:
267
268 Client.select(:name).uniq
269
abb1423 @mattdbridges Fixed small typo in ActveRecord/CHANGELOG.md
mattdbridges authored
270 This also allows you to revert the uniqueness in a relation:
562583c @jonleighton Add ActiveRecord::Relation#uniq for toggling DISTINCT in the SQL query
jonleighton authored
271
272 Client.select(:name).uniq.uniq(false)
273
274 *Jon Leighton*
275
69dcd45 @vjebelev AR changes to support creating ordered (asc, desc) indexes
vjebelev authored
276 * Support index sort order in sqlite, mysql and postgres adapters. *Vlad Jebelev*
277
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
278 * Allow the :class_name option for associations to take a symbol (:Client) in addition to
279 a string ('Client').
280
281 This is to avoid confusing newbies, and to be consistent with the fact that other options
282 like :foreign_key already allow a symbol or a string.
283
284 *Jon Leighton*
285
286 * In development mode the db:drop task also drops the test database. For symmetry with
287 the db:create task. *Dmitriy Kiriyenko*
288
289 * Added ActiveRecord::Base.store for declaring simple single-column key/value stores *DHH*
290
291 class User < ActiveRecord::Base
292 store :settings, accessors: [ :color, :homepage ]
293 end
294
295 u = User.new(color: 'black', homepage: '37signals.com')
296 u.color # Accessor stored attribute
297 u.settings[:country] = 'Denmark' # Any attribute, even if not specified with an accessor
298
299
300 * MySQL: case-insensitive uniqueness validation avoids calling LOWER when
301 the column already uses a case-insensitive collation. Fixes #561.
302
303 *Joseph Palermo*
304
305 * Transactional fixtures enlist all active database connections. You can test
306 models on different connections without disabling transactional fixtures.
307
308 *Jeremy Kemper*
309
310 * Add first_or_create, first_or_create!, first_or_initialize methods to Active Record. This is a
311 better approach over the old find_or_create_by dynamic methods because it's clearer which
312 arguments are used to find the record and which are used to create it:
313
314 User.where(:first_name => "Scarlett").first_or_create!(:last_name => "Johansson")
315
316 *Andrés Mejía*
317
318 * Fix nested attributes bug where _destroy parameter is taken into account
319 during :reject_if => :all_blank (fixes #2937)
320
321 *Aaron Christy*
00318e9 @jonleighton Add some doc for ActiveRecord::Model
jonleighton authored
322
05c6caf @claudiob Add release dates to documentation
claudiob authored
323 ## Rails 3.1.4 (March 1, 2012) ##
152a393 @pacoguzman Update changelogs with rails 3.0-stable branch info
pacoguzman authored
324
325 * Fix a custom primary key regression *GH 3987*
326
327 *Jon Leighton*
328
329 * Perf fix (second try): don't load records for `has many :dependent =>
330 :delete_all` *GH 3672*
331
332 *Jon Leighton*
333
334 * Fix accessing `proxy_association` method from an association extension
335 where the calls are chained. *GH #3890*
336
337 (E.g. `post.comments.where(bla).my_proxy_method`)
338
339 *Jon Leighton*
340
341 * Perf fix: MySQL primary key lookup was still slow for very large
342 tables. *GH 3678*
343
344 *Kenny J*
345
346 * Perf fix: If a table has no primary key, don't repeatedly ask the database for it.
347
348 *Julius de Bruijn*
349
350 ### Rails 3.1.3 (November 20, 2011) ##
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
351
fec85cf @jonleighton Perf fix
jonleighton authored
352 * Perf fix: If we're deleting all records in an association, don't add a IN(..) clause
353 to the query. *GH 3672*
354
355 *Jon Leighton*
356
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
357 * Fix bug with referencing other mysql databases in set_table_name. *GH 3690*
358
2ef4947 @jonleighton Add missing CHANGELOG entry for #3678. Closes #3678.
jonleighton authored
359 * Fix performance bug with mysql databases on a server with lots of other databses. *GH 3678*
360
361 *Christos Zisopoulos and Kenny J*
362
152a393 @pacoguzman Update changelogs with rails 3.0-stable branch info
pacoguzman authored
363 ### Rails 3.1.2 (November 18, 2011) ##
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
364
da02f79 @jonleighton Sync CHANGELOGs from 3-1-stable
jonleighton authored
365 * Fix bug with PostgreSQLAdapter#indexes. When the search path has multiple schemas, spaces
366 were not being stripped from the schema names after the first.
367
368 *Sean Kirby*
369
370 * Preserve SELECT columns on the COUNT for finder_sql when possible. *GH 3503*
371
372 *Justin Mazzi*
373
374 * Reset prepared statement cache when schema changes impact statement results. *GH 3335*
375
376 *Aaron Patterson*
377
378 * Postgres: Do not attempt to deallocate a statement if the connection is no longer active.
379
380 *Ian Leitch*
381
382 * Prevent QueryCache leaking database connections. *GH 3243*
383
384 *Mark J. Titorenko*
385
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
386 * Fix bug where building the conditions of a nested through association could potentially
387 modify the conditions of the through and/or source association. If you have experienced
388 bugs with conditions appearing in the wrong queries when using nested through associations,
389 this probably solves your problems. *GH #3271*
390
391 *Jon Leighton*
392
393 * If a record is removed from a has_many :through, all of the join records relating to that
394 record should also be removed from the through association's target.
395
396 *Jon Leighton*
397
398 * Fix adding multiple instances of the same record to a has_many :through. *GH #3425*
399
400 *Jon Leighton*
401
402 * Fix creating records in a through association with a polymorphic source type. *GH #3247*
403
404 *Jon Leighton*
405
fb0bf3c @kennyj Fixed an issue id false option is ignored on mysql/mysql2 (fix #3440)
kennyj authored
406 * MySQL: use the information_schema than the describe command when we look for a primary key. *GH #3440*
407
408 *Kenny J*
409
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
410 ## Rails 3.1.1 (October 7, 2011) ##
411
412 * Add deprecation for the preload_associations method. Fixes #3022.
413
414 *Jon Leighton*
415
416 * Don't require a DB connection when loading a model that uses set_primary_key. GH #2807.
417
418 *Jon Leighton*
419
420 * Fix using select() with a habtm association, e.g. Person.friends.select(:name). GH #3030 and
421 \#2923.
422
423 *Hendy Tanata*
424
425 * Fix belongs_to polymorphic with custom primary key on target. GH #3104.
426
427 *Jon Leighton*
428
429 * CollectionProxy#replace should change the DB records rather than just mutating the array.
430 Fixes #3020.
431
432 *Jon Leighton*
433
434 * LRU cache in mysql and sqlite are now per-process caches.
435
436 * lib/active_record/connection_adapters/mysql_adapter.rb: LRU cache keys are per process id.
437 * lib/active_record/connection_adapters/sqlite_adapter.rb: ditto
438 *Aaron Patterson*
439
440 * Support bulk change_table in mysql2 adapter, as well as the mysql one. *Jon Leighton*
441
442 * If multiple parameters are sent representing a date, and some are blank, the
443 resulting object is nil. In previous releases those values defaulted to 1. This only affects existing but blank parameters, missing ones still raise an error. [Akira Matsuda]
444 * ActiveRecord::Base.establish_connection now takes a string that contains
445 a URI that specifies the connection configuration. For example:
446 ActiveRecord::Base.establish_connection 'postgres://localhost/foo'
447
448 * Active Record's dynamic finder will now raise the error if you passing in less number of arguments than what you call in method signature.
449
450 So if you were doing this and expecting the second argument to be nil:
451
452 User.find_by_username_and_group("sikachu")
453
454 You'll now get `ArgumentError: wrong number of arguments (1 for 2).` You'll then have to do this:
455
456 User.find_by_username_and_group("sikachu", nil)
457
458 *Prem Sichanugrist*
459
460
461 ## Rails 3.1.0 (August 30, 2011) ##
462
463 * Add a proxy_association method to association proxies, which can be called by association
464 extensions to access information about the association. This replaces proxy_owner etc with
465 proxy_association.owner.
466
467 *Jon Leighton*
468
469 * ActiveRecord::MacroReflection::AssociationReflection#build_record has a new method signature.
470
471 Before: def build_association(*options)
472 After: def build_association(*options, &block)
473
474 Users who are redefining this method to extend functionality should ensure that the block is
475 passed through to ActiveRecord::Base#new.
476
477 This change is necessary to fix https://github.com/rails/rails/issues/1842.
478
479 *Jon Leighton*
480
481 * AR#pluralize_table_names can be used to singularize/pluralize table name of an individual model:
482
483 class User < ActiveRecord::Base
484 self.pluralize_table_names = false
485 end
486
487 Previously this could only be set globally for all models through ActiveRecord::Base.pluralize_table_names. *Guillermo Iguaran*
488
489 * Add block setting of attributes to singular associations:
490
491 class User < ActiveRecord::Base
492 has_one :account
493 end
494
495 user.build_account{ |a| a.credit_limit => 100.0 }
496
497 The block is called after the instance has been initialized. *Andrew White*
498
499 * Add ActiveRecord::Base.attribute_names to return a list of attribute names. This will return an empty array if the model is abstract or table does not exists. *Prem Sichanugrist*
500
501 * CSV Fixtures are deprecated and support will be removed in Rails 3.2.0
502
503 * AR#new, AR#create, AR#create!, AR#update_attributes and AR#update_attributes! all accept a second hash as option that allows you
504 to specify which role to consider when assigning attributes. This is built on top of ActiveModel's
505 new mass assignment capabilities:
506
507 class Post < ActiveRecord::Base
508 attr_accessible :title
509 attr_accessible :title, :published_at, :as => :admin
510 end
511
512 Post.new(params[:post], :as => :admin)
513
514 assign_attributes() with similar API was also added and attributes=(params, guard) was deprecated.
515
516 Please note that this changes the method signatures for AR#new, AR#create, AR#create!, AR#update_attributes and AR#update_attributes!. If you have overwritten these methods you should update them accordingly.
517
518 *Josh Kalderimis*
519
520 * default_scope can take a block, lambda, or any other object which responds to `call` for lazy
521 evaluation:
522
523 default_scope { ... }
524 default_scope lambda { ... }
525 default_scope method(:foo)
526
527 This feature was originally implemented by Tim Morgan, but was then removed in favour of
528 defining a 'default_scope' class method, but has now been added back in by Jon Leighton.
529 The relevant lighthouse ticket is #1812.
530
531 * Default scopes are now evaluated at the latest possible moment, to avoid problems where
532 scopes would be created which would implicitly contain the default scope, which would then
533 be impossible to get rid of via Model.unscoped.
534
535 Note that this means that if you are inspecting the internal structure of an
536 ActiveRecord::Relation, it will *not* contain the default scope, though the resulting
537 query will do. You can get a relation containing the default scope by calling
538 ActiveRecord#with_default_scope, though this is not part of the public API.
539
540 *Jon Leighton*
541
542 * If you wish to merge default scopes in special ways, it is recommended to define your default
543 scope as a class method and use the standard techniques for sharing code (inheritance, mixins,
544 etc.):
545
546 class Post < ActiveRecord::Base
547 def self.default_scope
548 where(:published => true).where(:hidden => false)
549 end
550 end
551
552 *Jon Leighton*
553
554 * PostgreSQL adapter only supports PostgreSQL version 8.2 and higher.
555
556 * ConnectionManagement middleware is changed to clean up the connection pool
557 after the rack body has been flushed.
558
559 * Added an update_column method on ActiveRecord. This new method updates a given attribute on an object, skipping validations and callbacks.
560 It is recommended to use #update_attribute unless you are sure you do not want to execute any callback, including the modification of
561 the updated_at column. It should not be called on new records.
562 Example:
563
564 User.first.update_column(:name, "sebastian") # => true
565
566 *Sebastian Martinez*
567
568 * Associations with a :through option can now use *any* association as the
569 through or source association, including other associations which have a
570 :through option and has_and_belongs_to_many associations
571
572 *Jon Leighton*
573
574 * The configuration for the current database connection is now accessible via
575 ActiveRecord::Base.connection_config. *fxn*
576
577 * limits and offsets are removed from COUNT queries unless both are supplied.
578 For example:
579
580 People.limit(1).count # => 'SELECT COUNT(*) FROM people'
581 People.offset(1).count # => 'SELECT COUNT(*) FROM people'
582 People.limit(1).offset(1).count # => 'SELECT COUNT(*) FROM people LIMIT 1 OFFSET 1'
583
584 *lighthouse #6262*
585
586 * ActiveRecord::Associations::AssociationProxy has been split. There is now an Association class
587 (and subclasses) which are responsible for operating on associations, and then a separate,
588 thin wrapper called CollectionProxy, which proxies collection associations.
589
590 This prevents namespace pollution, separates concerns, and will allow further refactorings.
591
592 Singular associations (has_one, belongs_to) no longer have a proxy at all. They simply return
593 the associated record or nil. This means that you should not use undocumented methods such
594 as bob.mother.create - use bob.create_mother instead.
595
596 *Jon Leighton*
597
598 * Make has_many :through associations work correctly when you build a record and then save it. This
599 requires you to set the :inverse_of option on the source reflection on the join model, like so:
600
601 class Post < ActiveRecord::Base
602 has_many :taggings
603 has_many :tags, :through => :taggings
604 end
605
606 class Tagging < ActiveRecord::Base
607 belongs_to :post
608 belongs_to :tag, :inverse_of => :tagging # :inverse_of must be set!
609 end
610
611 class Tag < ActiveRecord::Base
612 has_many :taggings
613 has_many :posts, :through => :taggings
614 end
615
616 post = Post.first
617 tag = post.tags.build :name => "ruby"
618 tag.save # will save a Taggable linking to the post
619
620 *Jon Leighton*
621
622 * Support the :dependent option on has_many :through associations. For historical and practical
623 reasons, :delete_all is the default deletion strategy employed by association.delete(*records),
624 despite the fact that the default strategy is :nullify for regular has_many. Also, this only
625 works at all if the source reflection is a belongs_to. For other situations, you should directly
626 modify the through association.
627
628 *Jon Leighton*
629
630 * Changed the behaviour of association.destroy for has_and_belongs_to_many and has_many :through.
631 From now on, 'destroy' or 'delete' on an association will be taken to mean 'get rid of the link',
632 not (necessarily) 'get rid of the associated records'.
633
634 Previously, has_and_belongs_to_many.destroy(*records) would destroy the records themselves. It
635 would not delete any records in the join table. Now, it deletes the records in the join table.
636
637 Previously, has_many_through.destroy(*records) would destroy the records themselves, and the
638 records in the join table. [Note: This has not always been the case; previous version of Rails
639 only deleted the records themselves.] Now, it destroys only the records in the join table.
640
641 Note that this change is backwards-incompatible to an extent, but there is unfortunately no
642 way to 'deprecate' it before changing it. The change is being made in order to have
643 consistency as to the meaning of 'destroy' or 'delete' across the different types of associations.
644
645 If you wish to destroy the records themselves, you can do records.association.each(&:destroy)
646
647 *Jon Leighton*
648
649 * Add :bulk => true option to change_table to make all the schema changes defined in change_table block using a single ALTER statement. *Pratik Naik*
650
651 Example:
652
653 change_table(:users, :bulk => true) do |t|
654 t.string :company_name
655 t.change :birthdate, :datetime
656 end
657
658 This will now result in:
659
660 ALTER TABLE `users` ADD COLUMN `company_name` varchar(255), CHANGE `updated_at` `updated_at` datetime DEFAULT NULL
661
662 * Removed support for accessing attributes on a has_and_belongs_to_many join table. This has been
663 documented as deprecated behaviour since April 2006. Please use has_many :through instead.
664 *Jon Leighton*
665
666 * Added a create_association! method for has_one and belongs_to associations. *Jon Leighton*
667
668 * Migration files generated from model and constructive migration generators
669 (for example, add_name_to_users) use the reversible migration's `change`
670 method instead of the ordinary `up` and `down` methods. *Prem Sichanugrist*
671
672 * Removed support for interpolating string SQL conditions on associations. Instead, you should
673 use a proc, like so:
674
675 Before:
676
677 has_many :things, :conditions => 'foo = #{bar}'
678
679 After:
680
681 has_many :things, :conditions => proc { "foo = #{bar}" }
682
683 Inside the proc, 'self' is the object which is the owner of the association, unless you are
684 eager loading the association, in which case 'self' is the class which the association is within.
685
686 You can have any "normal" conditions inside the proc, so the following will work too:
687
688 has_many :things, :conditions => proc { ["foo = ?", bar] }
689
690 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
691 'record' to get the record being inserted or deleted. This is now passed as an argument to
692 the proc.
693
694 * Added ActiveRecord::Base#has_secure_password (via ActiveModel::SecurePassword) to encapsulate dead-simple password usage with BCrypt encryption and salting [DHH]. Example:
695
696 # Schema: User(name:string, password_digest:string, password_salt:string)
697 class User < ActiveRecord::Base
698 has_secure_password
699 end
700
701 user = User.new(:name => "david", :password => "", :password_confirmation => "nomatch")
702 user.save # => false, password required
703 user.password = "mUc3m00RsqyRe"
704 user.save # => false, confirmation doesn't match
705 user.password_confirmation = "mUc3m00RsqyRe"
706 user.save # => true
707 user.authenticate("notright") # => false
708 user.authenticate("mUc3m00RsqyRe") # => user
709 User.find_by_name("david").try(:authenticate, "notright") # => nil
710 User.find_by_name("david").try(:authenticate, "mUc3m00RsqyRe") # => user
711
712
713 * When a model is generated add_index is added by default for belongs_to or references columns
714
715 rails g model post user:belongs_to will generate the following:
716
717 class CreatePosts < ActiveRecord::Migration
718 def up
719 create_table :posts do |t|
720 t.belongs_to :user
721 t.timestamps
722 end
723
724 add_index :posts, :user_id
725 end
726
727 def down
728 drop_table :posts
729 end
730 end
731
732 *Santiago Pastorino*
733
734 * Setting the id of a belongs_to object will update the reference to the
735 object. [#2989 state:resolved]
736 * ActiveRecord::Base#dup and ActiveRecord::Base#clone semantics have changed
737 to closer match normal Ruby dup and clone semantics.
738 * Calling ActiveRecord::Base#clone will result in a shallow copy of the record,
739 including copying the frozen state. No callbacks will be called.
740 * Calling ActiveRecord::Base#dup will duplicate the record, including calling
741 after initialize hooks. Frozen state will not be copied, and all associations will be cleared. A duped record will return true for new_record?, have a nil id field, and is saveable.
742 * Migrations can be defined as reversible, meaning that the migration system
743 will figure out how to reverse your migration. To use reversible migrations, just define the "change" method. For example:
744 class MyMigration < ActiveRecord::Migration
745 def change
746 create_table(:horses) do
747 t.column :content, :text
748 t.column :remind_at, :datetime
749 end
750 end
751 end
752
753 Some things cannot be automatically reversed for you. If you know how to reverse those things, you should define 'up' and 'down' in your migration. If you define something in `change` that cannot be reversed, an IrreversibleMigration exception will be raised when going down.
754 * Migrations should use instance methods rather than class methods:
755 class FooMigration < ActiveRecord::Migration
756 def up
757 ...
758 end
759 end
760
761 *Aaron Patterson*
762
763 * has_one maintains the association with separate after_create/after_update instead
764 of a single after_save. *fxn*
765
766 * The following code:
767
768 Model.limit(10).scoping { Model.count }
769
770 now generates the following SQL:
771
772 SELECT COUNT(*) FROM models LIMIT 10
773
774 This may not return what you want. Instead, you may with to do something
775 like this:
776
777 Model.limit(10).scoping { Model.all.size }
778
779 *Aaron Patterson*
780
781
05c6caf @claudiob Add release dates to documentation
claudiob authored
782 ## Rails 3.0.12 (March 1, 2012) ##
152a393 @pacoguzman Update changelogs with rails 3.0-stable branch info
pacoguzman authored
783
784 * No changes.
785
786
787 ## Rails 3.0.11 (November 18, 2011) ##
788
789 * Exceptions from database adapters should not lose their backtrace.
790
791 * Backport "ActiveRecord::Persistence#touch should not use default_scope" (GH #1519)
792
793 * Psych errors with poor yaml formatting are proxied. Fixes GH #2645 and
794 GH #2731
795
796 * Fix ActiveRecord#exists? when passsed a nil value
797
798
799 ## Rails 3.0.10 (August 16, 2011) ##
800
801 * Magic encoding comment added to schema.rb files
802
803 * schema.rb is written as UTF-8 by default.
804
805 * Ensuring an established connection when running `rake db:schema:dump`
806
807 * Association conditions will not clobber join conditions.
808
809 * Destroying a record will destroy the HABTM record before destroying itself.
810 GH #402.
811
812 * Make `ActiveRecord::Batches#find_each` to not return `self`.
813
814 * Update `table_exists?` in PG to to always use current search_path or schema if explictly set.
815
816
817 ## Rails 3.0.9 (June 16, 2011) ##
818
819 * No changes.
820
821
822 ## Rails 3.0.8 (June 7, 2011) ##
823
824 * Fix various problems with using :primary_key and :foreign_key options in conjunction with
825 :through associations. [Jon Leighton]
826
827 * Correctly handle inner joins on polymorphic relationships.
828
829 * Fixed infinity and negative infinity cases in PG date columns.
830
831 * Creating records with invalid associations via `create` or `save` will no longer raise exceptions.
832
833
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
834 ## Rails 3.0.7 (April 18, 2011) ##
835
836 * Destroying records via nested attributes works independent of reject_if LH #6006 *Durran Jordan*
837
838 * Delegate any? and many? to Model.scoped for consistency *Andrew White*
839
840 * Quote the ORDER BY clause in batched finds - fixes #6620 *Andrew White*
841
842 * Change exists? so records are not instantiated - fixes #6127. This prevents after_find
843 and after_initialize callbacks being triggered when checking for record existence.
844 *Andrew White*
845
846 * Fix performance bug with attribute accessors which only occurred on Ruby 1.8.7, and ensure we
847 cache type-casted values when the column returned from the db contains non-standard chars.
848 *Jon Leighton*
849
850 * Fix a performance regression introduced here 86acbf1cc050c8fa8c74a10c735e467fb6fd7df8
851 related to read_attribute method *Stian Grytøyr*
852
853
854 ## Rails 3.0.6 (April 5, 2011) ##
855
856 * Un-deprecate reorder method *Sebastian Martinez*
857
858 * Extensions are applied when calling +except+ or +only+ on relations.
859 Thanks to Iain Hecker.
860
861 * Schemas set in set_table_name are respected by the mysql adapter. LH #5322
862
863 * Fixed a bug when empty? was called on a grouped Relation that wasn't loaded.
864 LH #5829
865
866 * Reapply extensions when using except and only. Thanks Iain Hecker.
867
868 * Binary data is escaped when being inserted to SQLite3 Databases. Thanks
869 Naruse!
870
871
872 ## Rails 3.0.5 (February 26, 2011) ##
873
874 * Model.where(:column => 1).where(:column => 2) will always produce an AND
875 query.
876 *Aaron Patterson*
877
878 * Deprecated support for interpolated association conditions in the form of :conditions => 'foo = #{bar}'.
879
880 Instead, you should use a proc, like so:
881
882 Before:
883
884 has_many :things, :conditions => 'foo = #{bar}'
885
886 After:
887
888 has_many :things, :conditions => proc { "foo = #{bar}" }
889
890 Inside the proc, 'self' is the object which is the owner of the association, unless you are
891 eager loading the association, in which case 'self' is the class which the association is within.
892
893 You can have any "normal" conditions inside the proc, so the following will work too:
894
895 has_many :things, :conditions => proc { ["foo = ?", bar] }
896
897 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
898 'record' to get the record being inserted or deleted. This is now passed as an argument to
899 the proc.
900
901 *Jon Leighton*
902
903
904 ## Rails 3.0.4 (February 8, 2011) ##
905
906 * Added deprecation warning for has_and_belongs_to_many associations where the join table has
907 additional attributes other than the keys. Access to these attributes is removed in 3.1.
908 Please use has_many :through instead. *Jon Leighton*
909
910
911 ## Rails 3.0.3 (November 16, 2010) ##
912
913 * Support find by class like this: Post.where(:name => Post)
914
915
916 ## Rails 3.0.2 (November 15, 2010) ##
917
918 * Dramatic speed increase (see: http://engineering.attinteractive.com/2010/10/arel-two-point-ohhhhh-yaaaaaa/) *Aaron Patterson*
919
920 * reorder is deprecated in favor of except(:order).order(...) *Santiago Pastorino*
921
922 * except is now AR public API
923
924 Model.order('name').except(:order).order('salary')
925
926 generates:
927
928 SELECT * FROM models ORDER BY salary
929
930 *Santiago Pastorino*
931
932 * The following code:
933
934 Model.limit(10).scoping { Model.count }
935
936 now generates the following SQL:
937
938 SELECT COUNT(*) FROM models LIMIT 10
939
940 This may not return what you want. Instead, you may with to do something
941 like this:
942
943 Model.limit(10).scoping { Model.all.size }
944
945 *Aaron Patterson*
946
947
948 ## Rails 3.0.1 (October 15, 2010) ##
949
950 * Introduce a fix for CVE-2010-3993
951
952
953 ## Rails 3.0.0 (August 29, 2010) ##
954
955 * Changed update_attribute to not run callbacks and update the record directly in the database *Neeraj Singh*
956
957 * Add scoping and unscoped as the syntax to replace the old with_scope and with_exclusive_scope *José Valim*
958
959 * New rake task, db:migrate:status, displays status of migrations #4947 *Kevin Skoglund*
960
961 * select and order for ActiveRecord now always concatenate nested calls. Use reorder if you want the original order to be overwritten *Santiago Pastorino*
962
963 * PostgreSQL: ensure the database time zone matches Ruby's time zone #4895 *Aaron Patterson*
964
965 * Fixed that ActiveRecord::Base.compute_type would swallow NoMethodError #4751 *Andrew Bloomgarden, Andrew White*
966
967 * Add index length support for MySQL. #1852 *Emili Parreno, Pratik Naik*
968
969 Example:
970
971 add_index(:accounts, :name, :name => 'by_name', :length => 10)
972 => CREATE INDEX by_name ON accounts(name(10))
973
974 add_index(:accounts, [:name, :surname], :name => 'by_name_surname', :length => {:name => 10, :surname => 15})
975 => CREATE INDEX by_name_surname ON accounts(name(10), surname(15))
976
977 * find_or_create_by_attr(value, ...) works when attr is protected. #4457 *Santiago Pastorino, Marc-André Lafortune*
978
979 * New callbacks: after_commit and after_rollback. Do expensive operations like image thumbnailing after_commit instead of after_save. #2991 *Brian Durand*
980
981 * Serialized attributes are not converted to YAML if they are any of the formats that can be serialized to XML (like Hash, Array and Strings). *José Valim*
982
983 * Destroy uses optimistic locking. If lock_version on the record you're destroying doesn't match lock_version in the database, a StaleObjectError is raised. #1966 *Curtis Hawthorne*
984
985 * PostgreSQL: drop support for old postgres driver. Use pg 0.9.0 or later. *Jeremy Kemper*
986
987 * Observers can prevent records from saving by returning false, just like before_save and friends. #4087 *Mislav Marohnić*
988
989 * Add Relation extensions. *Pratik Naik*
990
991 users = User.where(:admin => true).extending(User::AdminPowers)
992
993 latest_users = User.order('created_at DESC') do
994 def posts_count
995 Post.count(:user_id => to_a.map(&:id))
996 end
997 end
998
999 * To prefix the table names of all models in a module, define self.table_name_prefix on the module. #4032 *Andrew White*
1000
1001 * Silenced "SHOW FIELDS" and "SET SQL_AUTO_IS_NULL=0" statements from the MySQL driver to improve log signal to noise ration in development *DHH*
1002
1003 * PostgreSQLAdapter: set time_zone to UTC when Base.default_timezone == :utc so that Postgres doesn't incorrectly offset-adjust values inserted into TIMESTAMP WITH TIME ZONE columns. #3777 *Jack Christensen*
1004
1005 * Allow relations to be used as scope.
1006
1007 class Item
1008 scope :red, where(:colour => 'red')
1009 end
1010
1011 Item.red.limit(10) # Ten red items
1012
1013 * Rename named_scope to scope. *Pratik Naik*
1014
1015 * Changed ActiveRecord::Base.store_full_sti_class to be true by default reflecting the previously announced Rails 3 default *DHH*
1016
1017 * Add Relation#except. *Pratik Naik*
1018
1019 one_red_item = Item.where(:colour => 'red').limit(1)
1020 all_items = one_red_item.except(:where, :limit)
1021
1022 * Add Relation#delete_all. *Pratik Naik*
1023
1024 Item.where(:colour => 'red').delete_all
1025
1026 * Add Model.having and Relation#having. *Pratik Naik*
1027
1028 Developer.group("salary").having("sum(salary) > 10000").select("salary")
1029
1030 * Add Relation#count. *Pratik Naik*
1031
1032 legends = People.where("age > 100")
1033 legends.count
1034 legends.count(:age, :distinct => true)
1035 legends.select('id').count
1036
1037 * Add Model.readonly and association_collection#readonly finder method. *Pratik Naik*
1038
1039 Post.readonly.to_a # Load all posts in readonly mode
1040 @user.items.readonly(false).to_a # Load all the user items in writable mode
1041
1042 * Add .lock finder method *Pratik Naik*
1043
1044 User.lock.where(:name => 'lifo').to_a
1045
1046 old_items = Item.where("age > 100")
1047 old_items.lock.each {|i| .. }
1048
1049 * Add Model.from and association_collection#from finder methods *Pratik Naik*
1050
1051 user = User.scoped
1052 user.select('*').from('users, items')
1053
1054 * Add relation.destroy_all *Pratik Naik*
1055
1056 old_items = Item.where("age > 100")
1057 old_items.destroy_all
1058
1059 * Add relation.exists? *Pratik Naik*
1060
1061 red_items = Item.where(:colours => 'red')
1062 red_items.exists?
1063 red_items.exists?(1)
1064
1065 * Add find(ids) to relations. *Pratik Naik*
1066
1067 old_users = User.order("age DESC")
1068 old_users.find(1)
1069 old_users.find(1, 2, 3)
1070
1071 * Add new finder methods to association collection. *Pratik Naik*
1072
1073 class User < ActiveRecord::Base
1074 has_many :items
1075 end
1076
1077 user = User.first
1078 user.items.where(:items => {:colour => 'red'})
1079 user.items.select('items.id')
1080
1081 * Add relation.reload to force reloading the records. *Pratik Naik*
1082
1083 topics = Topic.scoped
1084 topics.to_a # force load
1085 topics.first # returns a cached record
1086 topics.reload
1087 topics.first # Fetches a new record from the database
1088
1089 * Rename Model.conditions and relation.conditions to .where. *Pratik Naik*
1090
1091 Before :
1092 User.conditions(:name => 'lifo')
1093 User.select('id').conditions(["age > ?", 21])
1094
1095 Now :
1096 User.where(:name => 'lifo')
1097 User.select('id').where(["age > ?", 21])
1098
1099 * Add Model.select/group/order/limit/joins/conditions/preload/eager_load class methods returning a lazy relation. *Pratik Naik*
1100
1101 Examples :
1102
1103 posts = Post.select('id).order('name') # Returns a lazy relation
1104 posts.each {|p| puts p.id } # Fires "select id from posts order by name"
1105
1106 * Model.scoped now returns a relation if invoked without any arguments. *Pratik Naik*
1107
1108 Example :
1109
1110 posts = Post.scoped
1111 posts.size # Fires "select count(*) from posts" and returns the count
1112 posts.each {|p| puts p.name } # Fires "select * from posts" and loads post objects
1113
1114 * Association inverses for belongs_to, has_one, and has_many. Optimization to reduce database queries. #3533 *Murray Steele*
1115
1116 # post.comments sets each comment's post without needing to :include
1117 class Post < ActiveRecord::Base
1118 has_many :comments, :inverse_of => :post
1119 end
1120
1121 * MySQL: add_ and change_column support positioning. #3286 *Ben Marini*
1122
1123 * Reset your Active Record counter caches with the reset_counter_cache class method. #1211 *Mike Breen, Gabe da Silveira*
1124
1125 * Remove support for SQLite 2. Please upgrade to SQLite 3+ or install the plugin from git://github.com/rails/sqlite2_adapter.git *Pratik Naik*
1126
1127 * PostgreSQL: XML datatype support. #1874 *Leonardo Borges*
1128
1129 * quoted_date converts time-like objects to ActiveRecord::Base.default_timezone before serialization. This allows you to use Time.now in find conditions and have it correctly be serialized as the current time in UTC when default_timezone == :utc. #2946 *Geoff Buesing*
1130
1131 * SQLite: drop support for 'dbfile' option in favor of 'database.' #2363 *Paul Hinze, Jeremy Kemper*
1132
1133 * Added :primary_key option to belongs_to associations. #765 *Szymon Nowak, Philip Hallstrom, Noel Rocha*
1134 # employees.company_name references companies.name
1135 Employee.belongs_to :company, :primary_key => 'name', :foreign_key => 'company_name'
1136
1137 * Implement #many? for NamedScope and AssociationCollection using #size. #1500 *Chris Kampmeier*
1138
1139 * Added :touch option to belongs_to associations that will touch the parent record when the current record is saved or destroyed *DHH*
1140
1141 * Added ActiveRecord::Base#touch to update the updated_at/on attributes (or another specified timestamp) with the current time *DHH*
1142
1143
1144 ## 2.3.2 Final (March 15, 2009) ##
1145
1146 * Added ActiveRecord::Base.find_each and ActiveRecord::Base.find_in_batches for batch processing *DHH/Jamis Buck*
1147
1148 * Added that ActiveRecord::Base.exists? can be called with no arguments #1817 *Scott Taylor*
1149
1150 * Add Support for updating deeply nested models from a single form. #1202 *Eloy Duran*
1151
1152 class Book < ActiveRecord::Base
1153 has_one :author
1154 has_many :pages
1155
1156 accepts_nested_attributes_for :author, :pages
1157 end
1158
1159 * Make after_save callbacks fire only if the record was successfully saved. #1735 *Michael Lovitt*
1160
1161 Previously the callbacks would fire if a before_save cancelled saving.
1162
1163 * Support nested transactions using database savepoints. #383 *Jonathan Viney, Hongli Lai*
1164
1165 * Added dynamic scopes ala dynamic finders #1648 *Yaroslav Markin*
1166
1167 * Fixed that ActiveRecord::Base#new_record? should return false (not nil) for existing records #1219 *Yaroslav Markin*
1168
1169 * I18n the word separator for error messages. Introduces the activerecord.errors.format.separator translation key. #1294 *Akira Matsuda*
1170
1171 * Add :having as a key to find and the relevant associations. *Emilio Tagua*
1172
1173 * Added default_scope to Base #1381 [Paweł Kondzior]. Example:
1174
1175 class Person < ActiveRecord::Base
1176 default_scope :order => 'last_name, first_name'
1177 end
1178
1179 class Company < ActiveRecord::Base
1180 has_many :people
1181 end
1182
1183 Person.all # => Person.find(:all, :order => 'last_name, first_name')
1184 Company.find(1).people # => Person.find(:all, :order => 'last_name, first_name', :conditions => { :company_id => 1 })
1185
1186
1187 ## 2.2.1 RC2 (November 14th, 2008) ##
1188
1189 * Ensure indices don't flip order in schema.rb #1266 *Jordi Bunster*
1190
1191 * Fixed that serialized strings should never be type-casted (i.e. turning "Yes" to a boolean) #857 *Andreas Korth*
1192
1193
1194 ## 2.2.0 RC1 (October 24th, 2008) ##
1195
1196 * Skip collection ids reader optimization if using :finder_sql *Jeremy Kemper*
1197
1198 * Add Model#delete instance method, similar to Model.delete class method. #1086 *Hongli Lai (Phusion)*
1199
1200 * MySQL: cope with quirky default values for not-null text columns. #1043 *Frederick Cheung*
1201
1202 * Multiparameter attributes skip time zone conversion for time-only columns [#1030 state:resolved] *Geoff Buesing*
1203
1204 * Base.skip_time_zone_conversion_for_attributes uses class_inheritable_accessor, so that subclasses don't overwrite Base [#346 state:resolved] *Emilio Tagua*
1205
1206 * Added find_last_by dynamic finder #762 *Emilio Tagua*
1207
1208 * Internal API: configurable association options and build_association method for reflections so plugins may extend and override. #985 *Hongli Lai (Phusion)*
1209
1210 * Changed benchmarks to be reported in milliseconds *David Heinemeier Hansson*
1211
1212 * Connection pooling. #936 *Nick Sieger*
1213
1214 * Merge scoped :joins together instead of overwriting them. May expose scoping bugs in your code! #501 *Andrew White*
1215
1216 * before_save, before_validation and before_destroy callbacks that return false will now ROLLBACK the transaction. Previously this would have been committed before the processing was aborted. #891 *Xavier Noria*
1217
1218 * Transactional migrations for databases which support them. #834 *divoxx, Adam Wiggins, Tarmo Tänav*
1219
1220 * Set config.active_record.timestamped_migrations = false to have migrations with numeric prefix instead of UTC timestamp. #446. *Andrew Stone, Nik Wakelin*
1221
1222 * change_column_default preserves the not-null constraint. #617 *Tarmo Tänav*
1223
1224 * Fixed that create database statements would always include "DEFAULT NULL" (Nick Sieger) *#334*
1225
1226 * Add :tokenizer option to validates_length_of to specify how to split up the attribute string. #507. [David Lowenfels] Example :
1227
1228 \# Ensure essay contains at least 100 words.
1229 validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least %d words."), :tokenizer => lambda {|str| str.scan(/\w+/) }
1230
1231 * Allow conditions on multiple tables to be specified using hash. [Pratik Naik]. Example:
1232
1233 User.all :joins => :items, :conditions => { :age => 10, :items => { :color => 'black' } }
1234 Item.first :conditions => { :items => { :color => 'red' } }
1235
1236 * Always treat integer :limit as byte length. #420 *Tarmo Tänav*
1237
1238 * Partial updates don't update lock_version if nothing changed. #426 *Daniel Morrison*
1239
1240 * Fix column collision with named_scope and :joins. #46 *Duncan Beevers, Mark Catley*
1241
1242 * db:migrate:down and :up update schema_migrations. #369 *Michael Raidel, RaceCondition*
1243
1244 * PostgreSQL: support :conditions => [':foo::integer', { :foo => 1 }] without treating the ::integer typecast as a bind variable. *Tarmo Tänav*
1245
1246 * MySQL: rename_column preserves column defaults. #466 *Diego Algorta*
1247
1248 * Add :from option to calculations. #397 *Ben Munat*
1249
1250 * Add :validate option to associations to enable/disable the automatic validation of associated models. Resolves #301. *Jan De Poorter*
1251
1252 * PostgreSQL: use 'INSERT ... RETURNING id' for 8.2 and later. *Jeremy Kemper*
1253
1254 * Added SQL escaping for :limit and :offset in MySQL *Jonathan Wiess*
1255
1256
1257 ## 2.1.0 (May 31st, 2008) ##
1258
1259 * Add ActiveRecord::Base.sti_name that checks ActiveRecord::Base#store_full_sti_class? and returns either the full or demodulized name. *Rick Olson*
1260
1261 * Add first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
1262
1263 * Added SQL escaping for :limit and :offset #288 *Aaron Bedra, Steven Bristol, Jonathan Wiess*
1264
1265 * Added first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
1266
1267 * Ensure hm:t preloading honours reflection options. Resolves #137. *Frederick Cheung*
1268
1269 * Added protection against duplicate migration names (Aslak Hellesøy) *#112*
1270
1271 * Base#instantiate_time_object: eliminate check for Time.zone, since we can assume this is set if time_zone_aware_attributes is set to true *Geoff Buesing*
1272
1273 * Time zone aware attribute methods use Time.zone.parse instead of #to_time for String arguments, so that offset information in String is respected. Resolves #105. *Scott Fleckenstein, Geoff Buesing*
1274
1275 * Added change_table for migrations (Jeff Dean) [#71]. Example:
1276
1277 change_table :videos do |t|
1278 t.timestamps # adds created_at, updated_at
1279 t.belongs_to :goat # adds goat_id integer
1280 t.string :name, :email, :limit => 20 # adds name and email both with a 20 char limit
1281 t.remove :name, :email # removes the name and email columns
1282 end
1283
1284 * Fixed has_many :through .create with no parameters caused a "can't dup NilClass" error (Steven Soroka) *#85*
1285
1286 * Added block-setting of attributes for Base.create like Base.new already has (Adam Meehan) *#39*
1287
1288 * Fixed that pessimistic locking you reference the quoted table name (Josh Susser) *#67*
1289
1290 * Fixed that change_column should be able to use :null => true on a field that formerly had false [Nate Wiger] *#26*
1291
1292 * Added that the MySQL adapter should map integer to either smallint, int, or bigint depending on the :limit just like PostgreSQL *David Heinemeier Hansson*
1293
1294 * Change validates_uniqueness_of :case_sensitive option default back to true (from [9160]). Love your database columns, don't LOWER them. *Rick Olson*
1295
1296 * Add support for interleaving migrations by storing which migrations have run in the new schema_migrations table. Closes #11493 *Jordi Bunster*
1297
1298 * ActiveRecord::Base#sum defaults to 0 if no rows are returned. Closes #11550 *Kamal Fariz Mahyuddin*
1299
1300 * Ensure that respond_to? considers dynamic finder methods. Closes #11538. *James Mead*
1301
1302 * Ensure that save on parent object fails for invalid has_one association. Closes #10518. *Pratik Naik*
1303
1304 * Remove duplicate code from associations. *Pratik Naik*
1305
1306 * Refactor HasManyThroughAssociation to inherit from HasManyAssociation. Association callbacks and <association>_ids= now work with hm:t. #11516 *Ruy Asan*
1307
1308 * Ensure HABTM#create and HABTM#build do not load entire association. *Pratik Naik*
1309
1310 * Improve documentation. *Xavier Noria, Jack Danger Canty, leethal*
1311
1312 * Tweak ActiveRecord::Base#to_json to include a root value in the returned hash: {"post": {"title": ...}} *Rick Olson*
1313
1314 Post.find(1).to_json # => {"title": ...}
1315 config.active_record.include_root_in_json = true
1316 Post.find(1).to_json # => {"post": {"title": ...}}
1317
1318 * Add efficient #include? to AssociationCollection (for has_many/has_many :through/habtm). *stopdropandrew*
1319
1320 * PostgreSQL: create_ and drop_database support. #9042 *ez, pedz, Nick Sieger*
1321
1322 * Ensure that validates_uniqueness_of works with with_scope. Closes #9235. *Nik Wakelin, cavalle*
1323
1324 * Partial updates include only unsaved attributes. Off by default; set YourClass.partial_updates = true to enable. *Jeremy Kemper*
1325
1326 * Removing unnecessary uses_tzinfo helper from tests, given that TZInfo is now bundled *Geoff Buesing*
1327
1328 * Fixed that validates_size_of :within works in associations #11295, #10019 *cavalle*
1329
1330 * Track changes to unsaved attributes. *Jeremy Kemper*
1331
1332 * Switched to UTC-timebased version numbers for migrations and the schema. This will as good as eliminate the problem of multiple migrations getting the same version assigned in different branches. Also added rake db:migrate:up/down to apply individual migrations that may need to be run when you merge branches #11458 *John Barnette*
1333
1334 * Fixed that has_many :through would ignore the hash conditions #11447 *Emilio Tagua*
1335
1336 * Fix issue where the :uniq option of a has_many :through association is ignored when find(:all) is called. Closes #9407 *cavalle*
1337
1338 * Fix duplicate table alias error when including an association with a has_many :through association on the same join table. Closes #7310 *cavalle*
1339
1340 * More efficient association preloading code that compacts a through_records array in a central location. Closes #11427 *Jack Danger Canty*
1341
1342 * Improve documentation. *Ryan Bigg, Jan De Poorter, Cheah Chu Yeow, Xavier Shay, Jack Danger Canty, Emilio Tagua, Xavier Noria, Sunny Ripert*
1343
1344 * Fixed that ActiveRecord#Base.find_or_create/initialize would not honor attr_protected/accessible when used with a hash #11422 *Emilio Tagua*
1345
1346 * Added ActiveRecord#Base.all/first/last as aliases for find(:all/:first/:last) #11413 *nkallen, Chris O'Sullivan*
1347
1348 * Merge the has_finder gem, renamed as 'named_scope'. #11404 *nkallen*
1349
1350 class Article < ActiveRecord::Base
1351 named_scope :published, :conditions => {:published => true}
1352 named_scope :popular, :conditions => ...
1353 end
1354
1355 Article.published.paginate(:page => 1)
1356 Article.published.popular.count
1357 Article.popular.find(:first)
1358 Article.popular.find(:all, :conditions => {...})
1359
1360 See http://pivots.pivotallabs.com/users/nick/blog/articles/284-hasfinder-it-s-now-easier-than-ever-to-create-complex-re-usable-sql-queries
1361
1362 * Add has_one :through support. #4756 *Chris O'Sullivan*
1363
1364 * Migrations: create_table supports primary_key_prefix_type. #10314 *student, Chris O'Sullivan*
1365
1366 * Added logging for dependency load errors with fixtures #11056 *stuthulhu*
1367
1368 * Time zone aware attributes use Time#in_time_zone *Geoff Buesing*
1369
1370 * Fixed that scoped joins would not always be respected #6821 *Theory/Jack Danger Canty*
1371
1372 * Ensure that ActiveRecord::Calculations disambiguates field names with the table name. #11027 *cavalle*
1373
1374 * Added add/remove_timestamps to the schema statements for adding the created_at/updated_at columns on existing tables #11129 *jramirez*
1375
1376 * Added ActiveRecord::Base.find(:last) #11338 *Emilio Tagua*
1377
1378 * test_native_types expects DateTime.local_offset instead of DateTime.now.offset; fixes test breakage due to dst transition *Geoff Buesing*
1379
1380 * Add :readonly option to HasManyThrough associations. #11156 *Emilio Tagua*
1381
1382 * Improve performance on :include/:conditions/:limit queries by selectively joining in the pre-query. #9560 *dasil003*
1383
1384 * Perf fix: Avoid the use of named block arguments. Closes #11109 *adymo*
1385
1386 * PostgreSQL: support server versions 7.4 through 8.0 and the ruby-pg driver. #11127 *jdavis*
1387
1388 * Ensure association preloading doesn't break when an association returns nil. ##11145 *GMFlash*
1389
1390 * Make dynamic finders respect the :include on HasManyThrough associations. #10998. *cpytel*
1391
1392 * Base#instantiate_time_object only uses Time.zone when Base.time_zone_aware_attributes is true; leverages Time#time_with_datetime_fallback for readability *Geoff Buesing*
1393
1394 * Refactor ConnectionAdapters::Column.new_time: leverage DateTime failover behavior of Time#time_with_datetime_fallback *Geoff Buesing*
1395
1396 * Improve associations performance by using symbol callbacks instead of string callbacks. #11108 *adymo*
1397
1398 * Optimise the BigDecimal conversion code. #11110 *adymo*
1399
1400 * Introduce the :readonly option to all associations. Records from the association cannot be saved. #11084 *Emilio Tagua*
1401
1402 * Multiparameter attributes for time columns fail over to DateTime when out of range of Time *Geoff Buesing*
1403
1404 * Base#instantiate_time_object uses Time.zone.local() *Geoff Buesing*
1405
1406 * Add timezone-aware attribute readers and writers. #10982 *Geoff Buesing*
1407
1408 * Instantiating time objects in multiparameter attributes uses Time.zone if available. #10982 *Rick Olson*
1409
1410 * Add note about how ActiveRecord::Observer classes are initialized in a Rails app. #10980 *Xavier Noria*
1411
1412 * MySQL: omit text/blob defaults from the schema instead of using an empty string. #10963 *mdeiters*
1413
1414 * belongs_to supports :dependent => :destroy and :delete. #10592 *Jonathan Viney*
1415
1416 * Introduce preload query strategy for eager :includes. #9640 *Frederick Cheung, Aliaksey Kandratsenka, codafoo*
1417
1418 * Support aggregations in finder conditions. #10572 *Ryan Kinderman*
1419
1420 * Organize and clean up the Active Record test suite. #10742 *John Barnette*
1421
1422 * Ensure that modifying has_and_belongs_to_many actions clear the query cache. Closes #10840 *john.andrews*
1423
1424 * Fix issue where Table#references doesn't pass a :null option to a *_type attribute for polymorphic associations. Closes #10753 *railsjitsu*
1425
1426 * Fixtures: removed support for the ancient pre-YAML file format. #10736 *John Barnette*
1427
1428 * More thoroughly quote table names. #10698 *dimdenis, lotswholetime, Jeremy Kemper*
1429
1430 * update_all ignores scoped :order and :limit, so post.comments.update_all doesn't try to include the comment order in the update statement. #10686 *Brendan Ribera*
1431
1432 * Added ActiveRecord::Base.cache_key to make it easier to cache Active Records in combination with the new ActiveSupport::Cache::* libraries *David Heinemeier Hansson*
1433
1434 * Make sure CSV fixtures are compatible with ruby 1.9's new csv implementation. *JEG2*
1435
1436 * Added by parameter to increment, decrement, and their bang varieties so you can do player1.increment!(:points, 5) #10542 *Sam*
1437
1438 * Optimize ActiveRecord::Base#exists? to use #select_all instead of #find. Closes #10605 *jamesh, Frederick Cheung, protocool*
1439
1440 * Don't unnecessarily load has_many associations in after_update callbacks. Closes #6822 *stopdropandrew, canadaduane*
1441
1442 * Eager belongs_to :include infers the foreign key from the association name rather than the class name. #10517 *Jonathan Viney*
1443
1444 * SQLite: fix rename_ and remove_column for columns with unique indexes. #10576 *Brandon Keepers*
1445
1446 * Ruby 1.9 compatibility. #10655 *Jeremy Kemper, Dirkjan Bussink*
1447
1448
1449 ## 2.0.2 (December 16th, 2007) ##
1450
1451 * Ensure optimistic locking handles nil #lock_version values properly. Closes #10510 *Rick Olson*
1452
1453 * Make the Fixtures Test::Unit enhancements more supporting for double-loaded test cases. Closes #10379 *brynary*
1454
1455 * Fix that validates_acceptance_of still works for non-existent tables (useful for bootstrapping new databases). Closes #10474 *Josh Susser*
1456
1457 * Ensure that the :uniq option for has_many :through associations retains the order. #10463 *remvee*
1458
1459 * Base.exists? doesn't rescue exceptions to avoid hiding SQL errors. #10458 *Michael Klishin*
1460
1461 * Documentation: Active Record exceptions, destroy_all and delete_all. #10444, #10447 *Michael Klishin*
1462
1463
1464 ## 2.0.1 (December 7th, 2007) ##
1465
1466 * Removed query cache rescue as it could cause code to be run twice (closes #10408) *David Heinemeier Hansson*
1467
1468
1469 ## 2.0.0 (December 6th, 2007) ##
1470
1471 * Anchor DateTimeTest to fixed DateTime instead of a variable value based on Time.now#advance#to_datetime, so that this test passes on 64-bit platforms running Ruby 1.8.6+ *Geoff Buesing*
1472
1473 * Fixed that the Query Cache should just be ignored if the database is misconfigured (so that the "About your applications environment" works even before the database has been created) *David Heinemeier Hansson*
1474
1475 * Fixed that the truncation of strings longer than 50 chars should use inspect
1476 so newlines etc are escaped #10385 [Norbert Crombach]
1477 * Fixed that habtm associations should be able to set :select as part of their definition and have that honored *David Heinemeier Hansson*
1478
1479 * Document how the :include option can be used in Calculations::calculate. Closes #7446 *adamwiggins, ultimoamore*
1480
1481 * Fix typo in documentation for polymorphic associations w/STI. Closes #7461 *johnjosephbachir*
1482
1483 * Reveal that the type option in migrations can be any supported column type for your database but also include caveat about agnosticism. Closes #7531 *adamwiggins, mikong*
1484
1485 * More complete documentation for find_by_sql. Closes #7912 *fearoffish*
1486
1487 * Added ActiveRecord::Base#becomes to turn a record into one of another class (mostly relevant for STIs) [David Heinemeier Hansson]. Example:
1488
1489 render :partial => @client.becomes(Company) # renders companies/company instead of clients/client
1490
1491 * Fixed that to_xml should not automatically pass :procs to associations included with :include #10162 *Cheah Chu Yeow*
1492
1493 * Fix documentation typo introduced in [8250]. Closes #10339 *Henrik N*
1494
1495 * Foxy fixtures: support single-table inheritance. #10234 *tom*
1496
1497 * Foxy fixtures: allow mixed usage to make migration easier and more attractive. #10004 *lotswholetime*
1498
1499 * Make the record_timestamps class-inheritable so it can be set per model. #10004 *tmacedo*
1500
1501 * Allow validates_acceptance_of to use a real attribute instead of only virtual (so you can record that the acceptance occured) #7457 *ambethia*
1502
1503 * DateTimes use Ruby's default calendar reform setting. #10201 *Geoff Buesing*
1504
1505 * Dynamic finders on association collections respect association :order and :limit. #10211, #10227 *Patrick Joyce, Rick Olson, Jack Danger Canty*
1506
1507 * Add 'foxy' support for fixtures of polymorphic associations. #10183 *John Barnette, David Lowenfels*
1508
1509 * validates_inclusion_of and validates_exclusion_of allow formatted :message strings. #8132 *devrieda, Mike Naberezny*
1510
1511 * attr_readonly behaves well with optimistic locking. #10188 *Nick Bugajski*
1512
1513 * Base#to_xml supports the nil="true" attribute like Hash#to_xml. #8268 *Jonathan del Strother*
1514
1515 * Change plings to the more conventional quotes in the documentation. Closes #10104 *Jack Danger Canty*
1516
1517 * Fix HasManyThrough Association so it uses :conditions on the HasMany Association. Closes #9729 *Jack Danger Canty*
1518
1519 * Ensure that column names are quoted. Closes #10134 *wesley.moxam*
1520
1521 * Smattering of grammatical fixes to documentation. Closes #10083 *Bob Silva*
1522
1523 * Enhance explanation with more examples for attr_accessible macro. Closes #8095 *fearoffish, Marcel Molina Jr.*
1524
1525 * Update association/method mapping table to refected latest collection methods for has_many :through. Closes #8772 *Pratik Naik*
1526
1527 * Explain semantics of having several different AR instances in a transaction block. Closes #9036 *jacobat, Marcel Molina Jr.*
1528
1529 * Update Schema documentation to use updated sexy migration notation. Closes #10086 *Sam Granieri*
1530
1531 * Make fixtures work with the new test subclasses. *Tarmo Tänav, Michael Koziarski*
1532
1533 * Introduce finder :joins with associations. Same :include syntax but with inner rather than outer joins. #10012 *RubyRedRick*
1534 # Find users with an avatar
1535 User.find(:all, :joins => :avatar)
1536
1537 # Find posts with a high-rated comment.
1538 Post.find(:all, :joins => :comments, :conditions => 'comments.rating > 3')
1539
1540 * Associations: speedup duplicate record check. #10011 *Pratik Naik*
1541
1542 * Make sure that << works on has_many associations on unsaved records. Closes #9989 *Josh Susser*
1543
1544 * Allow association redefinition in subclasses. #9346 *wildchild*
1545
1546 * Fix has_many :through delete with custom foreign keys. #6466 *naffis*
1547
1548 * Foxy fixtures, from rathole (http://svn.geeksomnia.com/rathole/trunk/README)
1549 - stable, autogenerated IDs
1550 - specify associations (belongs_to, has_one, has_many) by label, not ID
1551 - specify HABTM associations as inline lists
1552 - autofill timestamp columns
1553 - support YAML defaults
1554 - fixture label interpolation
1555 Enabled for fixtures that correspond to a model class and don't specify a primary key value. #9981 *John Barnette*
1556
1557 * Add docs explaining how to protect all attributes using attr_accessible with no arguments. Closes #9631 *boone, rmm5t*
1558
1559 * Update add_index documentation to use new options api. Closes #9787 *Kamal Fariz Mahyuddin*
1560
1561 * Allow find on a has_many association defined with :finder_sql to accept id arguments as strings like regular find does. Closes #9916 *krishna*
1562
1563 * Use VALID_FIND_OPTIONS when resolving :find scoping rather than hard coding the list of valid find options. Closes #9443 *sur*
1564
1565 * Limited eager loading no longer ignores scoped :order. Closes #9561 *Jack Danger Canty, Josh Peek*
1566
1567 * Assigning an instance of a foreign class to a composed_of aggregate calls an optional conversion block. Refactor and simplify composed_of implementation. #6322 *brandon, Chris Cruft*
1568
1569 * Assigning nil to a composed_of aggregate also sets its immediate value to nil. #9843 *Chris Cruft*
1570
1571 * Ensure that mysql quotes table names with database names correctly. Closes #9911 *crayz*
1572
1573 "foo.bar" => "`foo`.`bar`"
1574
1575 * Complete the assimilation of Sexy Migrations from ErrFree *Chris Wanstrath, PJ Hyett*
1576 http://errtheblog.com/post/2381
1577
1578 * Qualified column names work in hash conditions, like :conditions => { 'comments.created_at' => ... }. #9733 *Jack Danger Canty*
1579
1580 * Fix regression where the association would not construct new finder SQL on save causing bogus queries for "WHERE owner_id = NULL" even after owner was saved. #8713 *Bryan Helmkamp*
1581
1582 * Refactor association create and build so before & after callbacks behave consistently. #8854 *Pratik Naik, mortent*
1583
1584 * Quote table names. Defaults to column quoting. #4593 *Justin Lynn, gwcoffey, eadz, Dmitry V. Sabanin, Jeremy Kemper*
1585
1586 * Alias association #build to #new so it behaves predictably. #8787 *Pratik Naik*
1587
1588 * Add notes to documentation regarding attr_readonly behavior with counter caches and polymorphic associations. Closes #9835 *saimonmoore, Rick Olson*
1589
1590 * Observers can observe model names as symbols properly now. Closes #9869 *queso*
1591
1592 * find_and_(initialize|create)_by methods can now properly initialize protected attributes *Tobias Lütke*
1593
1594 * belongs_to infers the foreign key from the association name instead of from the class name. *Jeremy Kemper*
1595
1596 * PostgreSQL: support multiline default values. #7533 *Carl Lerche, aguynamedryan, Rein Henrichs, Tarmo Tänav*
1597
1598 * MySQL: fix change_column on not-null columns that don't accept dfeault values of ''. #6663 *Jonathan Viney, Tarmo Tänav*
1599
1600 * validates_uniqueness_of behaves well with abstract superclasses and
1601 single-table inheritance. #3833, #9886 [Gabriel Gironda, rramdas, François Beausoleil, Josh Peek, Tarmo Tänav, pat]
1602 * Warn about protected attribute assigments in development and test environments when mass-assigning to an attr_protected attribute. #9802 *Henrik N*
1603
1604 * Speedup database date/time parsing. *Jeremy Kemper, Tarmo Tänav*
1605
1606 * Fix calling .clear on a has_many :dependent=>:delete_all association. *Tarmo Tänav*
1607
1608 * Allow change_column to set NOT NULL in the PostgreSQL adapter *Tarmo Tänav*
1609
1610 * Fix that ActiveRecord would create attribute methods and override custom attribute getters if the method is also defined in Kernel.methods. *Rick Olson*
1611
1612 * Don't call attr_readonly on polymorphic belongs_to associations, in case it matches the name of some other non-ActiveRecord class/module. *Rick Olson*
1613
1614 * Try loading activerecord-<adaptername>-adapter gem before trying a plain require so you can use custom gems for the bundled adapters. Also stops gems from requiring an adapter from an old Active Record gem. *Jeremy Kemper, Derrick Spell*
1615
1616
1617 ## 2.0.0 Preview Release (September 29th, 2007) Includes duplicates of changes from 1.14.2 - 1.15.3 ##
1618
1619 * Add attr_readonly to specify columns that are skipped during a normal ActiveRecord #save operation. Closes #6896 *Dan Manges*
1620
1621 class Comment < ActiveRecord::Base
1622 # Automatically sets Article#comments_count as readonly.
1623 belongs_to :article, :counter_cache => :comments_count
1624 end
1625
1626 class Article < ActiveRecord::Base
1627 attr_readonly :approved_comments_count
1628 end
1629
1630 * Make size for has_many :through use counter cache if it exists. Closes #9734 *Xavier Shay*
1631
1632 * Remove DB2 adapter since IBM chooses to maintain their own adapter instead. *Jeremy Kemper*
1633
1634 * Extract Oracle, SQLServer, and Sybase adapters into gems. *Jeremy Kemper*
1635
1636 * Added fixture caching that'll speed up a normal fixture-powered test suite between 50% and 100% #9682 *Frederick Cheung*
1637
1638 * Correctly quote id list for limited eager loading. #7482 *tmacedo*
1639
1640 * Fixed that using version-targetted migrates would fail on loggers other than the default one #7430 *valeksenko*
1641
1642 * Fixed rename_column for SQLite when using symbols for the column names #8616 *drodriguez*
1643
1644 * Added the possibility of using symbols in addition to concrete classes with ActiveRecord::Observer#observe. #3998 *Robby Russell, Tarmo Tänav*
1645
1646 * Added ActiveRecord::Base#to_json/from_json *David Heinemeier Hansson, Cheah Chu Yeow*
1647
1648 * Added ActiveRecord::Base#from_xml [David Heinemeier Hansson]. Example:
1649
1650 xml = "<person><name>David</name></person>"
1651 Person.new.from_xml(xml).name # => "David"
1652
1653 * Define dynamic finders as real methods after first usage. *bscofield*
1654
1655 * Deprecation: remove deprecated threaded_connections methods. Use allow_concurrency instead. *Jeremy Kemper*
1656
1657 * Associations macros accept extension blocks alongside modules. #9346 *Josh Peek*
1658
1659 * Speed up and simplify query caching. *Jeremy Kemper*
1660
1661 * connection.select_rows 'sql' returns an array (rows) of arrays (field values). #2329 *Michael Schuerig*
1662
1663 * Eager loading respects explicit :joins. #9496 *dasil003*
1664
1665 * Extract Firebird, FrontBase, and OpenBase adapters into gems. #9508, #9509, #9510 *Jeremy Kemper*
1666
1667 * RubyGem database adapters: expects a gem named activerecord-<database>-adapter with active_record/connection_adapters/<database>_adapter.rb in its load path. *Jeremy Kemper*
1668
1669 * Fixed that altering join tables in migrations would fail w/ sqlite3 #7453 *TimoMihaljov/brandon*
1670
1671 * Fix association writer with :dependent => :nullify. #7314 *Jonathan Viney*
1672
1673 * OpenBase: update for new lib and latest Rails. Support migrations. #8748 *dcsesq*
1674
1675 * Moved acts_as_tree into a plugin of the same name on the official Rails svn. #9514 *Pratik Naik*
1676
1677 * Moved acts_as_nested_set into a plugin of the same name on the official Rails svn. #9516 *Josh Peek*
1678
1679 * Moved acts_as_list into a plugin of the same name on the official Rails svn. *Josh Peek*
1680
1681 * Explicitly require active_record/query_cache before using it. *Jeremy Kemper*
1682
1683 * Fix bug where unserializing an attribute attempts to modify a frozen @attributes hash for a deleted record. *Rick Olson, marclove*
1684
1685 * Performance: absorb instantiate and initialize_with_callbacks into the Base methods. *Jeremy Kemper*
1686
1687 * Fixed that eager loading queries and with_scope should respect the :group option *David Heinemeier Hansson*
1688
1689 * Improve performance and functionality of the postgresql adapter. Closes #8049 *roderickvd*
1690
1691 For more information see: http://dev.rubyonrails.org/ticket/8049
1692
1693 * Don't clobber includes passed to has_many.count *Jack Danger Canty*
1694
1695 * Make sure has_many uses :include when counting *Jack Danger Canty*
1696
1697 * Change the implementation of ActiveRecord's attribute reader and writer methods *Michael Koziarski*
1698 - Generate Reader and Writer methods which cache attribute values in hashes. This is to avoid repeatedly parsing the same date or integer columns. - Change exception raised when users use find with :select then try to access a skipped column. Plugins could override missing_attribute() to lazily load the columns. - Move method definition to the class, instead of the instance - Always generate the readers, writers and predicate methods.
1699 * Perform a deep #dup on query cache results so that modifying activerecord attributes does not modify the cached attributes. *Rick Olson*
1700
1701 \# Ensure that has_many :through associations use a count query instead of loading the target when #size is called. Closes #8800 [Pratik Naik]
1702 * Added :unless clause to validations #8003 [monki]. Example:
1703
1704 def using_open_id?
1705 !identity_url.blank?
1706 end
1707
1708 validates_presence_of :identity_url, :if => using_open_id?
1709 validates_presence_of :username, :unless => using_open_id?
1710 validates_presence_of :password, :unless => using_open_id?
1711
1712 * Fix #count on a has_many :through association so that it recognizes the :uniq option. Closes #8801 *Pratik Naik*
1713
1714 * Fix and properly document/test count(column_name) usage. Closes #8999 *Pratik Naik*
1715
1716 * Remove deprecated count(conditions=nil, joins=nil) usage. Closes #8993 *Pratik Naik*
1717
1718 * Change belongs_to so that the foreign_key assumption is taken from the association name, not the class name. Closes #8992 *Josh Susser*
1719
1720 OLD
1721 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is user_id
1722
1723 NEW
1724 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is visitor_id
1725
1726 * Remove spurious tests from deprecated_associations_test, most of these aren't deprecated, and are duplicated in associations_test. Closes #8987 *Pratik Naik*
1727
1728 * Make create! on a has_many :through association return the association object. Not the collection. Closes #8786 *Pratik Naik*
1729
1730 * Move from select * to select tablename.* to avoid clobbering IDs. Closes #8889 *dasil003*
1731
1732 * Don't call unsupported methods on associated objects when using :include, :method with to_xml #7307, *Manfred Stienstra, jwilger*
1733
1734 * Define collection singular ids method for has_many :through associations. #8763 *Pratik Naik*
1735
1736 * Array attribute conditions work with proxied association collections. #8318 *Kamal Fariz Mahyuddin, theamazingrando*
1737
1738 * Fix polymorphic has_one associations declared in an abstract class. #8638 *Pratik Naik, Dax Huiberts*
1739
1740 * Fixed validates_associated should not stop on the first error. #4276 *mrj, Manfred Stienstra, Josh Peek*
1741
1742 * Rollback if commit raises an exception. #8642 *kik, Jeremy Kemper*
1743
1744 * Update tests' use of fixtures for the new collections api. #8726 *Kamal Fariz Mahyuddin*
1745
1746 * Save associated records only if the association is already loaded. #8713 *Blaine*
1747
1748 * MySQL: fix show_variable. #8448 *matt, Jeremy Kemper*
1749
1750 * Fixtures: correctly delete and insert fixtures in a single transaction. #8553 *Michael Schuerig*
1751
1752 * Fixtures: people(:technomancy, :josh) returns both fixtures. #7880 *technomancy, Josh Peek*
1753
1754 * Calculations support non-numeric foreign keys. #8154 *Kamal Fariz Mahyuddin*
1755
1756 * with_scope is protected. #8524 *Josh Peek*
1757
1758 * Quickref for association methods. #7723 *marclove, Mindsweeper*
1759
1760 * Calculations: return nil average instead of 0 when there are no rows to average. #8298 *davidw*
1761
1762 * acts_as_nested_set: direct_children is sorted correctly. #4761 *Josh Peek, rails@33lc0.net*
1763
1764 * Raise an exception if both attr_protected and attr_accessible are declared. #8507 *stellsmi*
1765
1766 * SQLite, MySQL, PostgreSQL, Oracle: quote column names in column migration SQL statements. #8466 *marclove, lorenjohnson*
1767
1768 * Allow nil serialized attributes with a set class constraint. #7293 *sandofsky*
1769
1770 * Oracle: support binary fixtures. #7987 *Michael Schoen*
1771
1772 * Fixtures: pull fixture insertion into the database adapters. #7987 *Michael Schoen*
1773
1774 * Announce migration versions as they're performed. *Jeremy Kemper*
1775
1776 * find gracefully copes with blank :conditions. #7599 *Dan Manges, johnnyb*
1777
1778 * validates_numericality_of takes :greater_than, :greater_than_or_equal_to, :equal_to, :less_than, :less_than_or_equal_to, :odd, and :even options. #3952 *Bob Silva, Dan Kubb, Josh Peek*
1779
1780 * MySQL: create_database takes :charset and :collation options. Charset defaults to utf8. #8448 *matt*
1781
1782 * Find with a list of ids supports limit/offset. #8437 *hrudududu*
1783
1784 * Optimistic locking: revert the lock version when an update fails. #7840 *plang*
1785
1786 * Migrations: add_column supports custom column types. #7742 *jsgarvin, Theory*
1787
1788 * Load database adapters on demand. Eliminates config.connection_adapters and RAILS_CONNECTION_ADAPTERS. Add your lib directory to the $LOAD_PATH and put your custom adapter in lib/active_record/connection_adapters/adaptername_adapter.rb. This way you can provide custom adapters as plugins or gems without modifying Rails. *Jeremy Kemper*
1789
1790 * Ensure that associations with :dependent => :delete_all respect :conditions option. Closes #8034 *Jack Danger Canty, Josh Peek, Rick Olson*
1791
1792 * belongs_to assignment creates a new proxy rather than modifying its target in-place. #8412 *mmangino@elevatedrails.com*
1793
1794 * Fix column type detection while loading fixtures. Closes #7987 *roderickvd*
1795
1796 * Document deep eager includes. #6267 *Josh Susser, Dan Manges*
1797
1798 * Document warning that associations names shouldn't be reserved words. #4378 *murphy@cYcnus.de, Josh Susser*
1799
1800 * Sanitize Base#inspect. #8392, #8623 *Nik Wakelin, jnoon*
1801
1802 * Replace the transaction {|transaction|..} semantics with a new Exception ActiveRecord::Rollback. *Michael Koziarski*
1803
1804 * Oracle: extract column length for CHAR also. #7866 *ymendel*
1805
1806 * Document :allow_nil option for validates_acceptance_of since it defaults to true. *tzaharia*
1807
1808 * Update documentation for :dependent declaration so that it explicitly uses the non-deprecated API. *Jack Danger Canty*
1809
1810 * Add documentation caveat about when to use count_by_sql. *fearoffish*
1811
1812 * Enhance documentation for increment_counter and decrement_counter. *fearoffish*
1813
1814 * Provide brief introduction to what optimistic locking is. *fearoffish*
1815
1816 * Add documentation for :encoding option to mysql adapter. *marclove*
1817
1818 * Added short-hand declaration style to migrations (inspiration from Sexy Migrations, http://errtheblog.com/post/2381) [David Heinemeier Hansson]. Example:
1819
1820 create_table "products" do |t|
1821 t.column "shop_id", :integer
1822 t.column "creator_id", :integer
1823 t.column "name", :string, :default => "Untitled"
1824 t.column "value", :string, :default => "Untitled"
1825 t.column "created_at", :datetime
1826 t.column "updated_at", :datetime
1827 end
1828
1829 ...can now be written as:
1830
1831 create_table :products do |t|
1832 t.integer :shop_id, :creator_id
1833 t.string :name, :value, :default => "Untitled"
1834 t.timestamps
1835 end
1836
1837 * Use association name for the wrapper element when using .to_xml. Previous behavior lead to non-deterministic situations with STI and polymorphic associations. *Michael Koziarski, jstrachan*
1838
1839 * Improve performance of calling .create on has_many :through associations. *evan*
1840
1841 * Improved cloning performance by relying less on exception raising #8159 *Blaine*
1842
1843 * Added ActiveRecord::Base.inspect to return a column-view like #<Post id:integer, title:string, body:text> *David Heinemeier Hansson*
1844
1845 * Added yielding of Builder instance for ActiveRecord::Base#to_xml calls *David Heinemeier Hansson*
1846
1847 * Small additions and fixes for ActiveRecord documentation. Closes #7342 *Jeremy McAnally*
1848
1849 * Add helpful debugging info to the ActiveRecord::StatementInvalid exception in ActiveRecord::ConnectionAdapters::SqliteAdapter#table_structure. Closes #7925. *court3nay*
1850
1851 * SQLite: binary escaping works with $KCODE='u'. #7862 *tsuka*
1852
1853 * Base#to_xml supports serialized attributes. #7502 *jonathan*
1854
1855 * Base.update_all :order and :limit options. Useful for MySQL updates that must be ordered to avoid violating unique constraints. *Jeremy Kemper*
1856
1857 * Remove deprecated object transactions. People relying on this functionality should install the object_transactions plugin at http://code.bitsweat.net/svn/object_transactions. Closes #5637 *Michael Koziarski, Jeremy Kemper*
1858
1859 * PostgreSQL: remove DateTime -> Time downcast. Warning: do not enable translate_results for the C bindings if you have timestamps outside Time's domain. *Jeremy Kemper*
1860
1861 * find_or_create_by_* takes a hash so you can create with more attributes than are in the method name. For example, Person.find_or_create_by_name(:name => 'Henry', :comments => 'Hi new user!') is equivalent to Person.find_by_name('Henry') || Person.create(:name => 'Henry', :comments => 'Hi new user!'). #7368 *Josh Susser*
1862
1863 * Make sure with_scope takes both :select and :joins into account when setting :readonly. Allows you to save records you retrieve using method_missing on a has_many :through associations. *Michael Koziarski*
1864
1865 * Allow a polymorphic :source for has_many :through associations. Closes #7143 *protocool*
1866
1867 * Consistent public/protected/private visibility for chained methods. #7813 *Dan Manges*
1868
1869 * Oracle: fix quoted primary keys and datetime overflow. #7798 *Michael Schoen*
1870
1871 * Consistently quote primary key column names. #7763 *toolmantim*
1872
1873 * Fixtures: fix YAML ordered map support. #2665 *Manuel Holtgrewe, nfbuckley*
1874
1875 * DateTimes assume the default timezone. #7764 *Geoff Buesing*
1876
1877 * Sybase: hide timestamp columns since they're inherently read-only. #7716 *Mike Joyce*
1878
1879 * Oracle: overflow Time to DateTime. #7718 *Michael Schoen*
1880
1881 * PostgreSQL: don't use async_exec and async_query with postgres-pr. #7727, #7762 *flowdelic, toolmantim*
1882
1883 * Fix has_many :through << with custom foreign keys. #6466, #7153 *naffis, Rich Collins*
1884
1885 * Test DateTime native type in migrations, including an edge case with dates
1886 during calendar reform. #7649, #7724 [fedot, Geoff Buesing]
1887 * SQLServer: correctly schema-dump tables with no indexes or descending indexes. #7333, #7703 *Jakob Skjerning, Tom Ward*
1888
1889 * SQLServer: recognize real column type as Ruby float. #7057 *sethladd, Tom Ward*
1890
1891 * Added fixtures :all as a way of loading all fixtures in the fixture directory at once #7214 *Manfred Stienstra*
1892
1893 * Added database connection as a yield parameter to ActiveRecord::Base.transaction so you can manually rollback [David Heinemeier Hansson]. Example:
1894
1895 transaction do |transaction|
1896 david.withdrawal(100)
1897 mary.deposit(100)
1898 transaction.rollback! # rolls back the transaction that was otherwise going to be successful
1899 end
1900
1901 * Made increment_counter/decrement_counter play nicely with optimistic locking, and added a more general update_counters method *Jamis Buck*
1902
1903 * Reworked David's query cache to be available as Model.cache {...}. For the duration of the block no select query should be run more then once. Any inserts/deletes/executes will flush the whole cache however *Tobias Lütke*
1904 Task.cache { Task.find(1); Task.find(1) } # => 1 query
1905
1906 * When dealing with SQLite3, use the table_info pragma helper, so that the bindings can do some translation for when sqlite3 breaks incompatibly between point releases. *Jamis Buck*
1907
1908 * Oracle: fix lob and text default handling. #7344 *gfriedrich, Michael Schoen*
1909
1910 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
1911
1912 * MySQL: blob and text columns may not have defaults in 5.x. Update fixtures schema for strict mode. #6695 *Dan Kubb*
1913
1914 * update_all can take a Hash argument. sanitize_sql splits into two methods for conditions and assignment since NULL values and delimiters are handled differently. #6583, #7365 *sandofsky, Assaf*
1915
1916 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
1917
1918 * Use Date#to_s(:db) for quoted dates. #7411 *Michael Schoen*
1919
1920 * Don't create instance writer methods for class attributes. Closes #7401 *Rick Olson*
1921
1922 * Docs: validations examples. #7343 *zackchandler*
1923
1924 * Add missing tests ensuring callbacks work with class inheritance. Closes #7339 *sandofsky*
1925
1926 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
1927
1928 * Remove useless code in #attribute_present? since 0 != blank?. Closes #7249 *Josh Susser*
1929
1930 * Fix minor doc typos. Closes #7157 *Josh Susser*
1931
1932 * Fix incorrect usage of #classify when creating the eager loading join statement. Closes #7044 *Josh Susser*
1933
1934 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
1935
1936 * Subclasses of an abstract class work with single-table inheritance. #5704, #7284 *BertG, nick+rails@ag.arizona.edu*
1937
1938 * Make sure sqlite3 driver closes open connections on disconnect *Rob Rasmussen*
1939
1940 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
1941
1942 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
1943
1944 * MySQL, PostgreSQL: change_column_default quotes the default value and doesn't lose column type information. #3987, #6664 *Jonathan Viney, Manfred Stienstra, altano@bigfoot.com*
1945
1946 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
1947
1948 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
1949
1950 * Apply scoping during initialize instead of create. Fixes setting of foreign key when using find_or_initialize_by with scoping. *Cody Fauser*
1951
1952 * SQLServer: handle [quoted] table names. #6635 *rrich*
1953
1954 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
1955
1956 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
1957
1958 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
1959 Student.find(:all, :conditions => { :grade => 9..12 })
1960
1961 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
1962
1963 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
1964
1965 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
1966
1967 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
1968
1969 * Rollback new_record? and id when an exception is raised in a save callback. #6910 *Ben Curren, outerim*
1970
1971 * Pushing a record on an association collection doesn't unnecessarily load all the associated records. *Obie Fernandez, Jeremy Kemper*
1972
1973 * Oracle: fix connection reset failure. #6846 *leonlleslie*
1974
1975 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
1976
1977 * fix faulty inheritance tests and that eager loading grabs the wrong inheritance column when the class of your association is an STI subclass. Closes #6859 *protocool*
1978
1979 * Consolidated different create and create! versions to call through to the base class with scope. This fixes inconsistencies, especially related to protected attribtues. Closes #5847 *Alexander Dymo, Tobias Lütke*
1980
1981 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
1982
1983 * Add AssociationCollection#create! to be consistent with AssociationCollection#create when dealing with a foreign key that is a protected attribute *Cody Fauser*
1984
1985 * Added counter optimization for AssociationCollection#any? so person.friends.any? won't actually load the full association if we have the count in a cheaper form *David Heinemeier Hansson*
1986
1987 * Change fixture_path to a class inheritable accessor allowing test cases to have their own custom set of fixtures. #6672 *Zach Dennis*
1988
1989 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
1990
1991 * Simplify query_attribute by typecasting the attribute value and checking whether it's nil, false, zero or blank. #6659 *Jonathan Viney*
1992
1993 * validates_numericality_of uses \A \Z to ensure the entire string matches rather than ^ $ which may match one valid line of a multiline string. #5716 *Andreas Schwarz*
1994
1995 * Run validations in the order they were declared. #6657 *obrie*
1996
1997 * MySQL: detect when a NOT NULL column without a default value is misreported as default ''. Can't detect for string, text, and binary columns since '' is a legitimate default. #6156 *simon@redhillconsulting.com.au, obrie, Jonathan Viney, Jeremy Kemper*
1998
1999 * Simplify association proxy implementation by factoring construct_scope out of method_missing. #6643 *martin*
2000
2001 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
2002
2003 * Oracle: to increase performance, prefetch 100 rows and enable similar cursor sharing. Both are configurable in database.yml. #6607 *philbogle@gmail.com, ray.fortna@jobster.com, Michael Schoen*
2004
2005 * Don't inspect unloaded associations. #2905 *lmarlow*
2006
2007 * SQLite: use AUTOINCREMENT primary key in >= 3.1.0. #6588, #6616 *careo, lukfugl*
2008
2009 * Cache inheritance_column. #6592 *Stefan Kaes*
2010
2011 * Firebird: decimal/numeric support. #6408 *macrnic*
2012
2013 * make add_order a tad faster. #6567 *Stefan Kaes*
2014
2015 * Find with :include respects scoped :order. #5850
2016
2017 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
2018 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
2019
2020 * Consistently use LOWER() for uniqueness validations (rather than mixing with UPPER()) so the database can always use a functional index on the lowercased column. #6495 *Si*
2021
2022 * SQLite: fix calculations workaround, remove count(distinct) query rewrite, cleanup test connection scripts. *Jeremy Kemper*
2023
2024 * SQLite: count(distinct) queries supported in >= 3.2.6. #6544 *Bob Silva*
2025
2026 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
2027
2028 * Deprecation: object transactions warning. *Jeremy Kemper*
2029
2030 * has_one :dependent => :nullify ignores nil associates. #4848, #6528 *bellis@deepthought.org, janovetz, Jeremy Kemper*
2031
2032 * Oracle: resolve test failures, use prefetched primary key for inserts, check for null defaults, fix limited id selection for eager loading. Factor out some common methods from all adapters. #6515 *Michael Schoen*
2033
2034 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
2035
2036 * Document other options available to migration's add_column. #6419 *grg*
2037
2038 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
2039
2040 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
2041
2042 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
2043
2044 * Restore eager condition interpolation, document it's differences *Rick Olson*
2045
2046 * Don't rollback in teardown unless a transaction was started. Don't start a transaction in create_fixtures if a transaction is started. #6282 *Jacob Fugal, Jeremy Kemper*
2047
2048 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
2049
2050 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
2051
2052 * Removes the ability for eager loaded conditions to be interpolated, since there is no model instance to use as a context for interpolation. #5553 *turnip@turnipspatch.com*
2053
2054 * Added timeout option to SQLite3 configurations to deal more gracefully with SQLite3::BusyException, now the connection can instead retry for x seconds to see if the db clears up before throwing that exception #6126 *wreese@gmail.com*
2055
2056 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
2057
2058 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
2059
2060 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
2061
2062 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
2063
2064 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
2065
2066 * Association collections have an _ids reader method to match the existing writer for collection_select convenience (e.g. employee.task_ids). The writer method skips blank ids so you can safely do @employee.task_ids = params[:tasks] without checking every time for an empty list or blank values. #1887, #5780 *Michael Schuerig*
2067
2068 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
2069
2070 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
2071
2072 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
2073
2074 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
2075
2076 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
2077
2078 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
2079
2080 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
2081
2082 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
2083
2084 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
2085
2086 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
2087
2088 * Fixed the Ruby/MySQL adapter we ship with Active Record to work with the new authentication handshake that was introduced in MySQL 4.1, along with the other protocol changes made at that time #5723 *jimw@mysql.com*
2089
2090 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
2091
2092 * Document validates_presences_of behavior with booleans: you probably want validates_inclusion_of :attr, :in => [true, false]. #2253 *Bob Silva*
2093
2094 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
2095
2096 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
2097
2098 * Deprecation: update docs. #5998 *Jakob Skjerning, Kevin Clark*
2099
2100 * Add some XmlSerialization tests for ActiveRecord *Rick Olson*
2101
2102 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
2103
2104 * Tighten rescue clauses. #5985 *james@grayproductions.net*
2105
2106 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
2107
2108 * has_one supports the :dependent => :delete option which skips the typical callback chain and deletes the associated object directly from the database. #5927 *Chris Mear, Jonathan Viney*
2109
2110 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
2111
2112 * SQLServer: work around bug where some unambiguous date formats are not correctly identified if the session language is set to german. #5894 *Tom Ward, kruth@bfpi*
2113
2114 * SQLServer: fix eager association test. #5901 *Tom Ward*
2115
2116 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
2117
2118 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
2119
2120 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
2121
2122 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
2123
2124 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
2125
2126 * Pushing a record onto a has_many :through sets the association's foreign key to the associate's primary key and adds it to the correct association. #5815, #5829 *Josh Susser*
2127
2128 * Add records to has_many :through using <<, push, and concat by creating the association record. Raise if base or associate are new records since both ids are required to create the association. #build raises since you can't associate an unsaved record. #create! takes an attributes hash and creates the associated record and its association in a transaction. *Jeremy Kemper*
2129
2130 # Create a tagging to associate the post and tag.
2131 post.tags << Tag.find_by_name('old')
2132 post.tags.create! :name => 'general'
2133
2134 # Would have been:
2135 post.taggings.create!(:tag => Tag.find_by_name('finally')
2136 transaction do
2137 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
2138 end
2139
2140 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
2141
2142 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
2143
2144 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
2145 Example: Invoice::Lineitem is given table name invoice_lineitems
2146
2147 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
2148 # people_active_last_name_index, people_active_deactivated_at_index
2149 add_index :people, [:active, :last_name]
2150 add_index :people, [:active, :deactivated_at]
2151 remove_index :people, [:active, :last_name]
2152 remove_index :people, [:active, :deactivated_at]
2153
2154 WARNING: backward-incompatibility. Multicolumn indexes created before this
2155 revision were named using the first column name only. Now they're uniquely
2156 named using all indexed columns.
2157
2158 To remove an old multicolumn index, remove_index :table_name, :first_column
2159
2160 * Fix for deep includes on the same association. *richcollins@gmail.com*
2161
2162 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
2163
2164 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
2165
2166 * Document find's :from option. Closes #5762. *andrew@redlinesoftware.com*
2167
2168 * PostgreSQL: autodetected sequences work correctly with multiple schemas. Rely on the schema search_path instead of explicitly qualifying the sequence name with its schema. #5280 *guy.naor@famundo.com*
2169
2170 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2171
2172 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2173
2174 * Add documentation for how to disable timestamps on a per model basis. Closes #5684. *matt@mattmargolis.net Marcel Molina Jr.*
2175
2176 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2177
2178 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2179
2180 * Formally deprecate the deprecated finders. *Michael Koziarski*
2181
2182 * Formally deprecate rich associations. *Michael Koziarski*
2183
2184 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2185
2186 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2187
2188 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2189
2190 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2191
2192 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2193
2194 assert (Topic.exists?(:author_name => "David"))
2195 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2196 assert (Topic.exists?(["parent_id = ?", 1]))
2197
2198 * Schema dumper quotes date :default values. *Dave Thomas*
2199
2200 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2201
2202 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2203
2204 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2205
2206 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2207
2208 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2209
2210 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2211
2212 * SQLServer: added tests to ensure all database statements are closed, refactored identity_insert management code to use blocks, removed update/delete rowcount code out of execute and into update/delete, changed insert to go through execute method, removed unused quoting methods, disabled pessimistic locking tests as feature is currently unsupported, fixed RakeFile to load sqlserver specific tests whether running in ado or odbc mode, fixed support for recently added decimal types, added support for limits on integer types. #5670 *Tom Ward*
2213
2214 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2215
2216 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2217
2218 * Numeric and decimal columns map to BigDecimal instead of Float. Those with scale 0 map to Integer. #5454 *robbat2@gentoo.org, work@ashleymoran.me.uk*
2219
2220 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2221
2222 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2223
2224 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
2225
2226 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2227
2228 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2229
2230 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2231
2232 * Oracle: use nonblocking queries if allow_concurrency is set, fix pessimistic locking, don't guess date vs. time by default (set OracleAdapter.emulate_dates = true for the old behavior), adapter cleanup. #5635 *Michael Schoen*
2233
2234 * Fixed a few Oracle issues: Allows Oracle's odd date handling to still work consistently within #to_xml, Passes test that hardcode insert statement by dropping the :id column, Updated RUNNING_UNIT_TESTS with Oracle instructions, Corrects method signature for #exec #5294 *Michael Schoen*
2235
2236 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2237
2238 * Minor tweak to improve performance of ActiveRecord::Base#to_param.
2239
2240 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2241
2242 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2243
2244 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2245
2246 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2247
2248 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2249
2250 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2251
2252 * Row locking. Provide a locking clause with the :lock finder option or true for the default "FOR UPDATE". Use the #lock! method to obtain a row lock on a single record (reloads the record with :lock => true). *Shugo Maeda*
2253 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2254 Person.transaction do
2255 # select * from people where id=1 for update
2256 person = Person.find(1, :lock => true)
2257 person.visits += 1
2258 person.save!
2259 end
2260
2261 * PostgreSQL: introduce allow_concurrency option which determines whether to use blocking or asynchronous #execute. Adapters with blocking #execute will deadlock Ruby threads. The default value is ActiveRecord::Base.allow_concurrency. *Jeremy Kemper*
2262
2263 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2264
2265 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2266
2267 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2268
2269 * Refactored ActiveRecord::Base.to_xml to become a delegate for XmlSerializer, which restores sanity to the mega method. This refactoring also reinstates the opinions that type="string" is redundant and ugly and nil-differentiation is not a concern of serialization *David Heinemeier Hansson*
2270
2271 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2272
2273 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2274
2275 ...is the same as:
2276 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2277
2278 This makes it easier to pass in the options from a form or otherwise outside.
2279
2280
2281 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2282
2283 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2284
2285 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2286
2287 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2288
2289 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2290
2291 * Fixed that :includes merged from with_scope won't cause the same association to be loaded more than once if repetition occurs in the clauses #5253 *alex@purefiction.net*
2292
2293 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2294
2295 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2296
2297 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2298 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2299 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2300
2301 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2302
2303 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2304
2305 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2306
2307 * Provide Association Extensions access to the instance that the association is being accessed from.
2308 Closes #4433 *Josh Susser*
2309
2310 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2311
2312 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2313
2314 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2315
2316 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2317
2318 * Added :allow_nil option for aggregations #5091 *Ian White*
2319
2320 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2321
2322 * create! no longer blows up when no attributes are passed and a :create scope is in effect (e.g. foo.bars.create! failed whereas foo.bars.create!({}) didn't.) *Jeremy Kemper*
2323
2324 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2325
2326 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2327
2328 * PostgreSQL: migrations support :limit with :integer columns by mapping limit < 4 to smallint, > 4 to bigint, and anything else to integer. #2900 *keegan@thebasement.org*
2329
2330 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2331
2332 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2333
2334 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2335
2336 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2337
2338 * Replace superfluous name_to_class_name variant with camelize. *Marcel Molina Jr.*
2339
2340 * Replace alias method chaining with Module#alias_method_chain. *Marcel Molina Jr.*
2341
2342 * Replace Ruby's deprecated append_features in favor of included. *Marcel Molina Jr.*
2343
2344 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2345
2346 * Update FrontBase adapter to check binding version. Closes #4920. *mlaster@metavillage.com*
2347
2348 * New Frontbase connections don't start in auto-commit mode. Closes #4922. *mlaster@metavillage.com*
2349
2350 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2351
2352 * Only modify the sequence name in the FrontBase adapter if the FrontBase adapter is actually being used. *Marcel Molina Jr.*
2353
2354 * Add support for FrontBase (http://www.frontbase.com/) with a new adapter thanks to the hard work of one Mike Laster. Closes #4093. *mlaster@metavillage.com*
2355
2356 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2357
2358 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2359
2360 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2361
2362 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2363
2364 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2365
2366 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2367
2368 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2369
2370 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2371
2372 * Fix bug where calculations with long alias names return null. *Rick Olson*
2373
2374 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2375
2376 @post.tags << @tag # BAD
2377 @post.taggings.create(:tag => @tag) # GOOD
2378
2379 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2380
2381 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2382
2383 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2384
2385 * Properly quote index names in migrations (closes #4764) *John Long*
2386
2387 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2388
2389 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2390
2391 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2392
2393 * DRY up association collection reader method generation. *Marcel Molina Jr.*
2394
2395 * DRY up and tweak style of the validation error object. *Marcel Molina Jr.*
2396
2397 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2398
2399 class Account < ActiveRecord::Base
2400 validates_uniqueness_of :email, :case_sensitive => false
2401 end
2402
2403 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2404
2405 class Account < ActiveRecord::Base
2406 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2407 end
2408
2409 *1.15.3* (March 12th, 2007)
2410
2411 * Allow a polymorphic :source for has_many :through associations. Closes #7143 [protocool]
2412
2413 * Consistently quote primary key column names. #7763 [toolmantim]
2414
2415 * Fixtures: fix YAML ordered map support. #2665 [Manuel Holtgrewe, nfbuckley]
2416
2417 * Fix has_many :through << with custom foreign keys. #6466, #7153 [naffis, Rich Collins]
2418
2419
2420 ## 1.15.2 (February 5th, 2007) ##
2421
2422 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
2423 Student.find(:all, :conditions => { :grade => 9..12 })
2424
2425 * Don't create instance writer methods for class attributes. *Rick Olson*
2426
2427 * When dealing with SQLite3, use the table_info pragma helper, so that the bindings can do some translation for when sqlite3 breaks incompatibly between point releases. *Jamis Buck*
2428
2429 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
2430
2431 * Consistently use LOWER() for uniqueness validations (rather than mixing with UPPER()) so the database can always use a functional index on the lowercased column. #6495 *Si*
2432
2433 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
2434
2435 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
2436
2437 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
2438
2439
2440 ## 1.15.1 (January 17th, 2007) ##
2441
2442 * Fix nodoc breaking of adapters
2443
2444
2445 ## 1.15.0 (January 16th, 2007) ##
2446
2447 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
2448
2449 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
2450
2451 * MySQL, PostgreSQL: change_column_default quotes the default value and doesn't lose column type information. #3987, #6664 *Jonathan Viney, Manfred Stienstra, altano@bigfoot.com*
2452
2453 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
2454
2455 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
2456
2457 * SQLServer: handle [quoted] table names. #6635 *rrich*
2458
2459 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
2460
2461 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
2462
2463 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
2464
2465 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
2466
2467 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
2468
2469 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
2470
2471 * Oracle: fix connection reset failure. #6846 *leonlleslie*
2472
2473 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
2474
2475 * fix faulty inheritance tests and that eager loading grabs the wrong inheritance column when the class of your association is an STI subclass. Closes #6859 *protocool*
2476
2477 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
2478
2479 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
2480 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
2481
2482 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
2483
2484 * MySQL: detect when a NOT NULL column without a default value is misreported as default ''. Can't detect for string, text, and binary columns since '' is a legitimate default. #6156 *simon@redhillconsulting.com.au, obrie, Jonathan Viney, Jeremy Kemper*
2485
2486 * validates_numericality_of uses \A \Z to ensure the entire string matches rather than ^ $ which may match one valid line of a multiline string. #5716 *Andreas Schwarz*
2487
2488 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
2489
2490 * Oracle: to increase performance, prefetch 100 rows and enable similar cursor sharing. Both are configurable in database.yml. #6607 *philbogle@gmail.com, ray.fortna@jobster.com, Michael Schoen*
2491
2492 * Firebird: decimal/numeric support. #6408 *macrnic*
2493
2494 * Find with :include respects scoped :order. #5850
2495
2496 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
2497
2498 * Deprecation: object transactions warning. *Jeremy Kemper*
2499
2500 * has_one :dependent => :nullify ignores nil associates. #6528 *janovetz, Jeremy Kemper*
2501
2502 * Oracle: resolve test failures, use prefetched primary key for inserts, check for null defaults, fix limited id selection for eager loading. Factor out some common methods from all adapters. #6515 *Michael Schoen*
2503
2504 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
2505
2506 * Document other options available to migration's add_column. #6419 *grg*
2507
2508 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
2509
2510 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
2511
2512 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
2513
2514 * Restore eager condition interpolation, document it's differences *Rick Olson*
2515
2516 * Don't rollback in teardown unless a transaction was started. Don't start a transaction in create_fixtures if a transaction is started. #6282 *Jacob Fugal, Jeremy Kemper*
2517
2518 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
2519
2520 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
2521
2522 * Removes the ability for eager loaded conditions to be interpolated, since there is no model instance to use as a context for interpolation. #5553 *turnip@turnipspatch.com*
2523
2524 * Added timeout option to SQLite3 configurations to deal more gracefully with SQLite3::BusyException, now the connection can instead retry for x seconds to see if the db clears up before throwing that exception #6126 *wreese@gmail.com*
2525
2526 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
2527
2528 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
2529
2530 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
2531
2532 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
2533
2534 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
2535
2536 * Association collections have an _ids reader method to match the existing writer for collection_select convenience (e.g. employee.task_ids). The writer method skips blank ids so you can safely do @employee.task_ids = params[:tasks] without checking every time for an empty list or blank values. #1887, #5780 *Michael Schuerig*
2537
2538 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
2539
2540 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
2541
2542 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
2543
2544 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
2545
2546 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
2547
2548 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
2549
2550 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
2551
2552 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
2553
2554 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
2555
2556 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
2557
2558 * Fixed the Ruby/MySQL adapter we ship with Active Record to work with the new authentication handshake that was introduced in MySQL 4.1, along with the other protocol changes made at that time #5723 *jimw@mysql.com*
2559
2560 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
2561
2562 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
2563
2564 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
2565
2566 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
2567
2568 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
2569
2570 * has_one supports the :dependent => :delete option which skips the typical callback chain and deletes the associated object directly from the database. #5927 *Chris Mear, Jonathan Viney*
2571
2572 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
2573
2574 * SQLServer: work around bug where some unambiguous date formats are not correctly identified if the session language is set to german. #5894 *Tom Ward, kruth@bfpi*
2575
2576 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
2577
2578 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
2579
2580 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
2581
2582 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
2583
2584 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
2585
2586 * Pushing a record onto a has_many :through sets the association's foreign key to the associate's primary key and adds it to the correct association. #5815, #5829 *Josh Susser*
2587
2588 * Add records to has_many :through using <<, push, and concat by creating the association record. Raise if base or associate are new records since both ids are required to create the association. #build raises since you can't associate an unsaved record. #create! takes an attributes hash and creates the associated record and its association in a transaction. *Jeremy Kemper*
2589
2590 # Create a tagging to associate the post and tag.
2591 post.tags << Tag.find_by_name('old')
2592 post.tags.create! :name => 'general'
2593
2594 # Would have been:
2595 post.taggings.create!(:tag => Tag.find_by_name('finally')
2596 transaction do
2597 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
2598 end
2599
2600 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
2601
2602 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
2603
2604 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
2605 Example: Invoice::Lineitem is given table name invoice_lineitems
2606
2607 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
2608 # people_active_last_name_index, people_active_deactivated_at_index
2609 add_index :people, [:active, :last_name]
2610 add_index :people, [:active, :deactivated_at]
2611 remove_index :people, [:active, :last_name]
2612 remove_index :people, [:active, :deactivated_at]
2613
2614 WARNING: backward-incompatibility. Multicolumn indexes created before this
2615 revision were named using the first column name only. Now they're uniquely
2616 named using all indexed columns.
2617
2618 To remove an old multicolumn index, remove_index :table_name, :first_column
2619
2620 * Fix for deep includes on the same association. *richcollins@gmail.com*
2621
2622 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
2623
2624 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
2625
2626 * PostgreSQL: autodetected sequences work correctly with multiple schemas. Rely on the schema search_path instead of explicitly qualifying the sequence name with its schema. #5280 *guy.naor@famundo.com*
2627
2628 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2629
2630 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2631
2632 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2633
2634 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2635
2636 * Formally deprecate the deprecated finders. *Michael Koziarski*
2637
2638 * Formally deprecate rich associations. *Michael Koziarski*
2639
2640 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2641
2642 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2643
2644 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2645
2646 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2647
2648 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2649
2650 assert (Topic.exists?(:author_name => "David"))
2651 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2652 assert (Topic.exists?(["parent_id = ?", 1]))
2653
2654 * Schema dumper quotes date :default values. *Dave Thomas*
2655
2656 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2657
2658 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2659
2660 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2661
2662 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2663
2664 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2665
2666 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2667
2668 * SQLServer: added tests to ensure all database statements are closed, refactored identity_insert management code to use blocks, removed update/delete rowcount code out of execute and into update/delete, changed insert to go through execute method, removed unused quoting methods, disabled pessimistic locking tests as feature is currently unsupported, fixed RakeFile to load sqlserver specific tests whether running in ado or odbc mode, fixed support for recently added decimal types, added support for limits on integer types. #5670 *Tom Ward*
2669
2670 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2671
2672 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2673
2674 * Numeric and decimal columns map to BigDecimal instead of Float. Those with scale 0 map to Integer. #5454 *robbat2@gentoo.org, work@ashleymoran.me.uk*
2675
2676 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2677
2678 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2679
2680 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2681
2682 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2683
2684 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2685
2686 * Oracle: use nonblocking queries if allow_concurrency is set, fix pessimistic locking, don't guess date vs. time by default (set OracleAdapter.emulate_dates = true for the old behavior), adapter cleanup. #5635 *Michael Schoen*
2687
2688 * Fixed a few Oracle issues: Allows Oracle's odd date handling to still work consistently within #to_xml, Passes test that hardcode insert statement by dropping the :id column, Updated RUNNING_UNIT_TESTS with Oracle instructions, Corrects method signature for #exec #5294 *Michael Schoen*
2689
2690 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2691
2692 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2693
2694 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2695
2696 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2697
2698 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2699
2700 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2701
2702 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2703
2704 * Row locking. Provide a locking clause with the :lock finder option or true for the default "FOR UPDATE". Use the #lock! method to obtain a row lock on a single record (reloads the record with :lock => true). *Shugo Maeda*
2705 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2706 Person.transaction do
2707 # select * from people where id=1 for update
2708 person = Person.find(1, :lock => true)
2709 person.visits += 1
2710 person.save!
2711 end
2712
2713 * PostgreSQL: introduce allow_concurrency option which determines whether to use blocking or asynchronous #execute. Adapters with blocking #execute will deadlock Ruby threads. The default value is ActiveRecord::Base.allow_concurrency. *Jeremy Kemper*
2714
2715 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2716
2717 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2718
2719 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2720
2721 * Refactored ActiveRecord::Base.to_xml to become a delegate for XmlSerializer, which restores sanity to the mega method. This refactoring also reinstates the opinions that type="string" is redundant and ugly and nil-differentiation is not a concern of serialization *David Heinemeier Hansson*
2722
2723 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2724
2725 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2726
2727 ...is the same as:
2728 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2729
2730 This makes it easier to pass in the options from a form or otherwise outside.
2731
2732
2733 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2734
2735 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2736
2737 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2738
2739 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2740
2741 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2742
2743 * Fixed that :includes merged from with_scope won't cause the same association to be loaded more than once if repetition occurs in the clauses #5253 *alex@purefiction.net*
2744
2745 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2746
2747 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2748
2749 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2750 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2751 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2752
2753 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2754
2755 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2756
2757 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2758
2759 * Provide Association Extensions access to the instance that the association is being accessed from.
2760 Closes #4433 *Josh Susser*
2761
2762 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2763
2764 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2765
2766 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2767
2768 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2769
2770 * Added :allow_nil option for aggregations #5091 *Ian White*
2771
2772 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2773
2774 * create! no longer blows up when no attributes are passed and a :create scope is in effect (e.g. foo.bars.create! failed whereas foo.bars.create!({}) didn't.) *Jeremy Kemper*
2775
2776 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2777
2778 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2779
2780 * PostgreSQL: migrations support :limit with :integer columns by mapping limit < 4 to smallint, > 4 to bigint, and anything else to integer. #2900 *keegan@thebasement.org*
2781
2782 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2783
2784 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2785
2786 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2787
2788 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2789
2790 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2791
2792 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2793
2794 * Add support for FrontBase (http://www.frontbase.com/) with a new adapter thanks to the hard work of one Mike Laster. Closes #4093. *mlaster@metavillage.com*
2795
2796 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2797
2798 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2799
2800 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2801
2802 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2803
2804 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2805
2806 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2807
2808 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2809
2810 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2811
2812 * Fix bug where calculations with long alias names return null. *Rick Olson*
2813
2814 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2815
2816 @post.tags << @tag # BAD
2817 @post.taggings.create(:tag => @tag) # GOOD
2818
2819 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2820
2821 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2822
2823 * Properly quote index names in migrations (closes #4764) *John Long*
2824
2825 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2826
2827 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2828
2829 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2830
2831 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2832
2833 class Account < ActiveRecord::Base
2834 validates_uniqueness_of :email, :case_sensitive => false
2835 end
2836
2837 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2838
2839 class Account < ActiveRecord::Base
2840 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2841 end
2842
2843
2844 ## 1.14.4 (August 8th, 2006) ##
2845
2846 * Add warning about the proper way to validate the presence of a foreign key. #4147 *Francois Beausoleil <francois.beausoleil@gmail.com>*
2847
2848 * Fix syntax error in documentation. #4679 *Mislav Marohnić*
2849
2850 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2851
2852
2853 ## 1.14.3 (June 27th, 2006) ##
2854
2855 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2856
2857 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
2858
2859 * Properly quote index names in migrations (closes #4764) *John Long*
2860
2861 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2862
2863 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2864
2865
2866 ## 1.14.2 (April 9th, 2006) ##
2867
2868 * Fixed calculations for the Oracle Adapter (closes #4626) *Michael Schoen*
2869
2870
2871 ## 1.14.1 (April 6th, 2006) ##
2872
2873 * Fix type_name_with_module to handle type names that begin with '::'. Closes #4614. *Nicholas Seckar*
2874
2875 * Fixed that that multiparameter assignment doesn't work with aggregations (closes #4620) *Lars Pind*
2876
2877 * Enable Limit/Offset in Calculations (closes #4558) *lmarlow*
2878
2879 * Fixed that loading including associations returns all results if Load IDs For Limited Eager Loading returns none (closes #4528) *Rick Olson*
2880
2881 * Fixed HasManyAssociation#find bugs when :finder_sql is set #4600 *lagroue@free.fr*
2882
2883 * Allow AR::Base#respond_to? to behave when @attributes is nil *Ryan Davis*
2884
2885 * Support eager includes when going through a polymorphic has_many association. *Rick Olson*
2886
2887 * Added support for eagerly including polymorphic has_one associations. (closes #4525) *Rick Olson*
2888
2889 class Post < ActiveRecord::Base
2890 has_one :tagging, :as => :taggable
2891 end
2892
2893 Post.find :all, :include => :tagging
2894
2895 * Added descriptive error messages for invalid has_many :through associations: going through :has_one or :has_and_belongs_to_many *Rick Olson*
2896
2897 * Added support for going through a polymorphic has_many association: (closes #4401) *Rick Olson*
2898
2899 class PhotoCollection < ActiveRecord::Base
2900 has_many :photos, :as => :photographic
2901 belongs_to :firm
2902 end
2903
2904 class Firm < ActiveRecord::Base
2905 has_many :photo_collections
2906 has_many :photos, :through => :photo_collections
2907 end
2908
2909 * Multiple fixes and optimizations in PostgreSQL adapter, allowing ruby-postgres gem to work properly. *ruben.nine@gmail.com*
2910
2911 * Fixed that AssociationCollection#delete_all should work even if the records of the association are not loaded yet. *Florian Weber*
2912
2913 * Changed those private ActiveRecord methods to take optional third argument :auto instead of nil for performance optimizations. (closes #4456) *Stefan*
2914
2915 * Private ActiveRecord methods add_limit!, add_joins!, and add_conditions! take an OPTIONAL third argument 'scope' (closes #4456) *Rick Olson*
2916
2917 * DEPRECATED: Using additional attributes on has_and_belongs_to_many associations. Instead upgrade your association to be a real join model *David Heinemeier Hansson*
2918
2919 * Fixed that records returned from has_and_belongs_to_many associations with additional attributes should be marked as read only (fixes #4512) *David Heinemeier Hansson*
2920
2921 * Do not implicitly mark recordss of has_many :through as readonly but do mark habtm records as readonly (eventually only on join tables without rich attributes). *Marcel Mollina Jr.*
2922
2923 * Fixed broken OCIAdapter #4457 *Michael Schoen*
2924
2925
2926 ## 1.14.0 (March 27th, 2006) ##
2927
2928 * Replace 'rescue Object' with a finer grained rescue. Closes #4431. *Nicholas Seckar*
2929
2930 * Fixed eager loading so that an aliased table cannot clash with a has_and_belongs_to_many join table *Rick Olson*
2931
2932 * Add support for :include to with_scope *andrew@redlinesoftware.com*
2933
2934 * Support the use of public synonyms with the Oracle adapter; required ruby-oci8 v0.1.14 #4390 *Michael Schoen*
2935
2936 * Change periods (.) in table aliases to _'s. Closes #4251 *jeff@ministrycentered.com*
2937
2938 * Changed has_and_belongs_to_many join to INNER JOIN for Mysql 3.23.x. Closes #4348 *Rick Olson*
2939
2940 * Fixed issue that kept :select options from being scoped *Rick Olson*
2941
2942 * Fixed db_schema_import when binary types are present #3101 *David Heinemeier Hansson*
2943
2944 * Fixed that MySQL enums should always be returned as strings #3501 *David Heinemeier Hansson*
2945
2946 * Change has_many :through to use the :source option to specify the source association. :class_name is now ignored. *Rick Olson*
2947
2948 class Connection < ActiveRecord::Base
2949 belongs_to :user
2950 belongs_to :channel
2951 end
2952
2953 class Channel < ActiveRecord::Base
2954 has_many :connections
2955 has_many :contacts, :through => :connections, :class_name => 'User' # OLD
2956 has_many :contacts, :through => :connections, :source => :user # NEW
2957 end
2958
2959 * Fixed DB2 adapter so nullable columns will be determines correctly now and quotes from column default values will be removed #4350 *contact@maik-schmidt.de*
2960
2961 * Allow overriding of find parameters in scoped has_many :through calls *Rick Olson*
2962
2963 In this example, :include => false disables the default eager association from loading. :select changes the standard
2964 select clause. :joins specifies a join that is added to the end of the has_many :through query.
2965
2966 class Post < ActiveRecord::Base
2967 has_many :tags, :through => :taggings, :include => :tagging do
2968 def add_joins_and_select
2969 find :all, :select => 'tags.*, authors.id as author_id', :include => false,
2970 :joins => 'left outer join posts on taggings.taggable_id = posts.id left outer join authors on posts.author_id = authors.id'
2971 end
2972 end
2973 end
2974
2975 * Fixed that schema changes while the database was open would break any connections to an SQLite database (now we reconnect if that error is throw) *David Heinemeier Hansson*
2976
2977 * Don't classify the has_one class when eager loading, it is already singular. Add tests. (closes #4117) *Jonathan Viney*
2978
2979 * Quit ignoring default :include options in has_many :through calls *Mark James*
2980
2981 * Allow has_many :through associations to find the source association by setting a custom class (closes #4307) *Jonathan Viney*
2982
2983 * Eager Loading support added for has_many :through => :has_many associations (see below). *Rick Olson*
2984
2985 * Allow has_many :through to work on has_many associations (closes #3864) [sco@scottraymond.net] Example:
2986
2987 class Firm < ActiveRecord::Base
2988 has_many :clients
2989 has_many :invoices, :through => :clients
2990 end
2991
2992 class Client < ActiveRecord::Base
2993 belongs_to :firm
2994 has_many :invoices
2995 end
2996
2997 class Invoice < ActiveRecord::Base
2998 belongs_to :client
2999 end
3000
3001 * Raise error when trying to select many polymorphic objects with has_many :through or :include (closes #4226) *Josh Susser*
3002
3003 * Fixed has_many :through to include :conditions set on the :through association. closes #4020 *Jonathan Viney*
3004
3005 * Fix that has_many :through honors the foreign key set by the belongs_to association in the join model (closes #4259) *andylien@gmail.com / Rick Olson*
3006
3007 * SQL Server adapter gets some love #4298 *Ryan Tomayko*
3008
3009 * Added OpenBase database adapter that builds on top of the http://www.spice-of-life.net/ruby-openbase/ driver. All functionality except LIMIT/OFFSET is supported #3528 *derrickspell@cdmplus.com*
3010
3011 * Rework table aliasing to account for truncated table aliases. Add smarter table aliasing when doing eager loading of STI associations. This allows you to use the association name in the order/where clause. [Jonathan Viney / Rick Olson] #4108 Example (SpecialComment is using STI):
3012
3013 Author.find(:all, :include => { :posts => :special_comments }, :order => 'special_comments.body')
3014
3015 * Add AbstractAdapter#table_alias_for to create table aliases according to the rules of the current adapter. *Rick Olson*
3016
3017 * Provide access to the underlying database connection through Adapter#raw_connection. Enables the use of db-specific methods without complicating the adapters. #2090 *Michael Koziarski*
3018
3019 * Remove broken attempts at handling columns with a default of 'now()' in the postgresql adapter. #2257 *Michael Koziarski*
3020
3021 * Added connection#current_database that'll return of the current database (only works in MySQL, SQL Server, and Oracle so far -- please help implement for the rest of the adapters) #3663 *Tom Ward*