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d3e5d1c @tenderlove updating changelogs
tenderlove authored
1 ## Rails 3.2.4 (May 31, 2012) ##
2c21a2f @benedikt Revert "Revert "Fix #5667. Preloading should ignore scoping.""
benedikt authored
2
b98d1e2 @jonleighton Perf: Don't load the association for #delete_all.
jonleighton authored
3 * Perf fix: Don't load the records when doing assoc.delete_all.
4 GH #6289. *Jon Leighton*
5
2c21a2f @benedikt Revert "Revert "Fix #5667. Preloading should ignore scoping.""
benedikt authored
6 * Association preloading shouldn't be affected by the current scoping.
7 This could cause infinite recursion and potentially other problems.
8 See GH #5667. *Jon Leighton*
9
d3e5d1c @tenderlove updating changelogs
tenderlove authored
10 * Datetime attributes are forced to be changed. GH #3965
11
12 * Fix attribute casting. GH #5549
13
14 * Fix #5667. Preloading should ignore scoping.
15
3005f58 @rafaelfranca Add release data to Rails 3.2.3
rafaelfranca authored
16 ## Rails 3.2.3 (March 30, 2012) ##
3bfd651 @vijaydev changelog updates [ci skip]
vijaydev authored
17
90d9635 @pixeltrix Add dynamic find_or_create_by_{attribute}! method.
pixeltrix authored
18 * Added find_or_create_by_{attribute}! dynamic method. *Andrew White*
19
3bfd651 @vijaydev changelog updates [ci skip]
vijaydev authored
20 * Whitelist all attribute assignment by default. Change the default for newly generated applications to whitelist all attribute assignment. Also update the generated model classes so users are reminded of the importance of attr_accessible. *NZKoz*
21
22 * Update ActiveRecord::AttributeMethods#attribute_present? to return false for empty strings. *Jacobkg*
23
24 * Fix associations when using per class databases. *larskanis*
25
26 * Revert setting NOT NULL constraints in add_timestamps *fxn*
27
28 * Fix mysql to use proper text types. Fixes #3931. *kennyj*
29
30 * Fix #5069 - Protect foreign key from mass assignment through association builder. *byroot*
31
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
32
33 ## Rails 3.2.2 (March 1, 2012) ##
34
35 * No changes.
36
37
97e8d1d @fxn CHANGELOG revision for v3.2.1
fxn authored
38 ## Rails 3.2.1 (January 26, 2012) ##
fab664a @jonleighton Fix another race condition.
jonleighton authored
39
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
40 * The threshold for auto EXPLAIN is ignored if there's no logger. *fxn*
41
97e8d1d @fxn CHANGELOG revision for v3.2.1
fxn authored
42 * Call `to_s` on the value passed to `table_name=`, in particular symbols
43 are supported (regression). *Sergey Nartimov*
44
fab664a @jonleighton Fix another race condition.
jonleighton authored
45 * Fix possible race condition when two threads try to define attribute
97e8d1d @fxn CHANGELOG revision for v3.2.1
fxn authored
46 methods for the same class. *Jon Leighton*
47
fab664a @jonleighton Fix another race condition.
jonleighton authored
48
f36dcaf @dhh Preparing for 3.2.0 release
dhh authored
49 ## Rails 3.2.0 (January 20, 2012) ##
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
50
4c5b73f @tenderlove Merge pull request #4531 from exviva/pessimistic_with_lock
tenderlove authored
51 * Added a `with_lock` method to ActiveRecord objects, which starts
52 a transaction, locks the object (pessimistically) and yields to the block.
53 The method takes one (optional) parameter and passes it to `lock!`.
54
55 Before:
56
57 class Order < ActiveRecord::Base
58 def cancel!
59 transaction do
60 lock!
61 # ... cancelling logic
62 end
63 end
64 end
65
66 After:
67
68 class Order < ActiveRecord::Base
69 def cancel!
70 with_lock do
71 # ... cancelling logic
72 end
73 end
74 end
75
76 *Olek Janiszewski*
77
3f16f5b @spastorino Add CHANGELOG entry
spastorino authored
78 * 'on' and 'ON' boolean columns values are type casted to true
79 *Santiago Pastorino*
80
35a1744 @drogus Allow to run migrations with given scope, with SCOPE=<scope>
drogus authored
81 * Added ability to run migrations only for given scope, which allows
82 to run migrations only from one engine (for example to revert changes
83 from engine that you want to remove).
84
85 Example:
86 rake db:migrate SCOPE=blog
87
4c5b73f @tenderlove Merge pull request #4531 from exviva/pessimistic_with_lock
tenderlove authored
88 *Piotr Sarnacki*
35a1744 @drogus Allow to run migrations with given scope, with SCOPE=<scope>
drogus authored
89
90 * Migrations copied from engines are now scoped with engine's name,
91 for example 01_create_posts.blog.rb. *Piotr Sarnacki*
92
de24ed9 @fxn removes the convenience instance version of AR::Base.silence_auto_exp…
fxn authored
93 * Implements `AR::Base.silence_auto_explain`. This method allows the user to
94 selectively disable automatic EXPLAINs within a block. *fxn*
0be5ada @fxn implements AR::Base(.|#)silence_auto_explain
fxn authored
95
0306f82 @fxn implements automatic EXPLAIN logging for slow queries
fxn authored
96 * Implements automatic EXPLAIN logging for slow queries.
97
98 A new configuration parameter `config.active_record.auto_explain_threshold_in_seconds`
99 determines what's to be considered a slow query. Setting that to `nil` disables
100 this feature. Defaults are 0.5 in development mode, and `nil` in test and production
101 modes.
102
103 As of this writing there's support for SQLite, MySQL (mysql2 adapter), and
104 PostgreSQL.
105
106 *fxn*
a382d60 @bogdan ActiveRecord::Relation#pluck method
bogdan authored
107
108 * Implemented ActiveRecord::Relation#pluck method
109
110 Method returns Array of column value from table under ActiveRecord model
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
111
a382d60 @bogdan ActiveRecord::Relation#pluck method
bogdan authored
112 Client.pluck(:id)
113
114 *Bogdan Gusiev*
115
0e2477b @tenderlove Automatic closure of connections in threads is deprecated. For example
tenderlove authored
116 * Automatic closure of connections in threads is deprecated. For example
117 the following code is deprecated:
118
119 Thread.new { Post.find(1) }.join
120
121 It should be changed to close the database connection at the end of
122 the thread:
123
124 Thread.new {
125 Post.find(1)
126 Post.connection.close
127 }.join
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
128
0e2477b @tenderlove Automatic closure of connections in threads is deprecated. For example
tenderlove authored
129 Only people who spawn threads in their application code need to worry
130 about this change.
131
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
132 * Deprecated:
133
134 * `set_table_name`
135 * `set_inheritance_column`
7af719e @jonleighton Deprecate set_sequence_name in favour of self.sequence_name=
jonleighton authored
136 * `set_sequence_name`
1a474cc @jonleighton Deprecate set_primary_key in favour of self.primary_key=
jonleighton authored
137 * `set_primary_key`
f3c84dc @jonleighton Deprecate set_locking_column in favour of self.locking_column=
jonleighton authored
138 * `set_locking_column`
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
139
140 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 yo…
jonleighton authored
141
142 class Project < ActiveRecord::Base
143 self.table_name = "project"
144 end
145
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
146 Or define your own `self.table_name` method:
147
0b72a04 @jonleighton Deprecate set_table_name in favour of self.table_name= or defining yo…
jonleighton authored
148 class Post < ActiveRecord::Base
149 def self.table_name
150 "special_" + super
151 end
152 end
153 Post.table_name # => "special_posts"
154
155 *Jon Leighton*
156
10834e9 @joshsusser changelog & docs for GeneratedFeatureMethods
joshsusser authored
157 * Generated association methods are created within a separate module to allow overriding and
158 composition using `super`. For a class named `MyModel`, the module is named
159 `MyModel::GeneratedFeatureMethods`. It is included into the model class immediately after
160 the `generated_attributes_methods` module defined in ActiveModel, so association methods
161 override attribute methods of the same name. *Josh Susser*
162
e7b7b44 @fxn implements AR::Relation#explain
fxn authored
163 * Implemented ActiveRecord::Relation#explain. *fxn*
164
562583c @jonleighton Add ActiveRecord::Relation#uniq for toggling DISTINCT in the SQL query
jonleighton authored
165 * Add ActiveRecord::Relation#uniq for generating unique queries.
166
167 Before:
168
169 Client.select('DISTINCT name')
170
171 After:
172
173 Client.select(:name).uniq
174
175 This also allows you to revert the unqueness in a relation:
176
177 Client.select(:name).uniq.uniq(false)
178
179 *Jon Leighton*
180
69dcd45 @vjebelev AR changes to support creating ordered (asc, desc) indexes
vjebelev authored
181 * Support index sort order in sqlite, mysql and postgres adapters. *Vlad Jebelev*
182
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
183 * Allow the :class_name option for associations to take a symbol (:Client) in addition to
184 a string ('Client').
185
186 This is to avoid confusing newbies, and to be consistent with the fact that other options
187 like :foreign_key already allow a symbol or a string.
188
189 *Jon Leighton*
190
191 * In development mode the db:drop task also drops the test database. For symmetry with
192 the db:create task. *Dmitriy Kiriyenko*
193
194 * Added ActiveRecord::Base.store for declaring simple single-column key/value stores *DHH*
195
196 class User < ActiveRecord::Base
197 store :settings, accessors: [ :color, :homepage ]
198 end
199
200 u = User.new(color: 'black', homepage: '37signals.com')
201 u.color # Accessor stored attribute
202 u.settings[:country] = 'Denmark' # Any attribute, even if not specified with an accessor
203
204
205 * MySQL: case-insensitive uniqueness validation avoids calling LOWER when
206 the column already uses a case-insensitive collation. Fixes #561.
207
208 *Joseph Palermo*
209
210 * Transactional fixtures enlist all active database connections. You can test
211 models on different connections without disabling transactional fixtures.
212
213 *Jeremy Kemper*
214
215 * Add first_or_create, first_or_create!, first_or_initialize methods to Active Record. This is a
216 better approach over the old find_or_create_by dynamic methods because it's clearer which
217 arguments are used to find the record and which are used to create it:
218
219 User.where(:first_name => "Scarlett").first_or_create!(:last_name => "Johansson")
220
221 *Andrés Mejía*
222
223 * Fix nested attributes bug where _destroy parameter is taken into account
224 during :reject_if => :all_blank (fixes #2937)
225
226 *Aaron Christy*
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
227
04d5eae @bdurand Add ActiveSupport::Cache::NullStore to expose caching interface witho…
bdurand authored
228 * Add ActiveSupport::Cache::NullStore for use in development and testing.
229
230 *Brian Durand*
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
231
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
232
233 ## Rails 3.1.3 (November 20, 2011) ##
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
234
fec85cf @jonleighton Perf fix
jonleighton authored
235 * Perf fix: If we're deleting all records in an association, don't add a IN(..) clause
236 to the query. *GH 3672*
237
238 *Jon Leighton*
239
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
240 * Fix bug with referencing other mysql databases in set_table_name. *GH 3690*
241
2ef4947 @jonleighton Add missing CHANGELOG entry for #3678. Closes #3678.
jonleighton authored
242 * Fix performance bug with mysql databases on a server with lots of other databses. *GH 3678*
243
244 *Christos Zisopoulos and Kenny J*
245
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
246
247 ## Rails 3.1.2 (November 18, 2011) ##
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
248
da02f79 @jonleighton Sync CHANGELOGs from 3-1-stable
jonleighton authored
249 * Fix bug with PostgreSQLAdapter#indexes. When the search path has multiple schemas, spaces
250 were not being stripped from the schema names after the first.
251
252 *Sean Kirby*
253
254 * Preserve SELECT columns on the COUNT for finder_sql when possible. *GH 3503*
255
256 *Justin Mazzi*
257
258 * Reset prepared statement cache when schema changes impact statement results. *GH 3335*
259
260 *Aaron Patterson*
261
262 * Postgres: Do not attempt to deallocate a statement if the connection is no longer active.
263
264 *Ian Leitch*
265
266 * Prevent QueryCache leaking database connections. *GH 3243*
267
268 *Mark J. Titorenko*
269
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
270 * Fix bug where building the conditions of a nested through association could potentially
271 modify the conditions of the through and/or source association. If you have experienced
272 bugs with conditions appearing in the wrong queries when using nested through associations,
273 this probably solves your problems. *GH #3271*
274
275 *Jon Leighton*
276
277 * If a record is removed from a has_many :through, all of the join records relating to that
278 record should also be removed from the through association's target.
279
280 *Jon Leighton*
281
282 * Fix adding multiple instances of the same record to a has_many :through. *GH #3425*
283
284 *Jon Leighton*
285
286 * Fix creating records in a through association with a polymorphic source type. *GH #3247*
287
288 *Jon Leighton*
289
fb0bf3c @kennyj Fixed an issue id false option is ignored on mysql/mysql2 (fix #3440)
kennyj authored
290 * MySQL: use the information_schema than the describe command when we look for a primary key. *GH #3440*
291
292 *Kenny J*
293
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
294
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
295 ## Rails 3.1.1 (October 7, 2011) ##
296
297 * Add deprecation for the preload_associations method. Fixes #3022.
298
299 *Jon Leighton*
300
301 * Don't require a DB connection when loading a model that uses set_primary_key. GH #2807.
302
303 *Jon Leighton*
304
305 * Fix using select() with a habtm association, e.g. Person.friends.select(:name). GH #3030 and
306 \#2923.
307
308 *Hendy Tanata*
309
310 * Fix belongs_to polymorphic with custom primary key on target. GH #3104.
311
312 *Jon Leighton*
313
314 * CollectionProxy#replace should change the DB records rather than just mutating the array.
315 Fixes #3020.
316
317 *Jon Leighton*
318
319 * LRU cache in mysql and sqlite are now per-process caches.
320
321 * lib/active_record/connection_adapters/mysql_adapter.rb: LRU cache keys are per process id.
322 * lib/active_record/connection_adapters/sqlite_adapter.rb: ditto
323 *Aaron Patterson*
324
325 * Support bulk change_table in mysql2 adapter, as well as the mysql one. *Jon Leighton*
326
327 * If multiple parameters are sent representing a date, and some are blank, the
328 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]
329 * ActiveRecord::Base.establish_connection now takes a string that contains
330 a URI that specifies the connection configuration. For example:
331 ActiveRecord::Base.establish_connection 'postgres://localhost/foo'
332
333 * 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.
334
335 So if you were doing this and expecting the second argument to be nil:
336
337 User.find_by_username_and_group("sikachu")
338
339 You'll now get `ArgumentError: wrong number of arguments (1 for 2).` You'll then have to do this:
340
341 User.find_by_username_and_group("sikachu", nil)
342
343 *Prem Sichanugrist*
344
345
346 ## Rails 3.1.0 (August 30, 2011) ##
347
348 * Add a proxy_association method to association proxies, which can be called by association
349 extensions to access information about the association. This replaces proxy_owner etc with
350 proxy_association.owner.
351
352 *Jon Leighton*
353
354 * ActiveRecord::MacroReflection::AssociationReflection#build_record has a new method signature.
355
356 Before: def build_association(*options)
357 After: def build_association(*options, &block)
358
359 Users who are redefining this method to extend functionality should ensure that the block is
360 passed through to ActiveRecord::Base#new.
361
362 This change is necessary to fix https://github.com/rails/rails/issues/1842.
363
364 *Jon Leighton*
365
366 * AR#pluralize_table_names can be used to singularize/pluralize table name of an individual model:
367
368 class User < ActiveRecord::Base
369 self.pluralize_table_names = false
370 end
371
372 Previously this could only be set globally for all models through ActiveRecord::Base.pluralize_table_names. *Guillermo Iguaran*
373
374 * Add block setting of attributes to singular associations:
375
376 class User < ActiveRecord::Base
377 has_one :account
378 end
379
380 user.build_account{ |a| a.credit_limit => 100.0 }
381
382 The block is called after the instance has been initialized. *Andrew White*
383
384 * 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*
385
386 * CSV Fixtures are deprecated and support will be removed in Rails 3.2.0
387
388 * AR#new, AR#create, AR#create!, AR#update_attributes and AR#update_attributes! all accept a second hash as option that allows you
389 to specify which role to consider when assigning attributes. This is built on top of ActiveModel's
390 new mass assignment capabilities:
391
392 class Post < ActiveRecord::Base
393 attr_accessible :title
394 attr_accessible :title, :published_at, :as => :admin
395 end
396
397 Post.new(params[:post], :as => :admin)
398
399 assign_attributes() with similar API was also added and attributes=(params, guard) was deprecated.
400
401 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.
402
403 *Josh Kalderimis*
404
405 * default_scope can take a block, lambda, or any other object which responds to `call` for lazy
406 evaluation:
407
408 default_scope { ... }
409 default_scope lambda { ... }
410 default_scope method(:foo)
411
412 This feature was originally implemented by Tim Morgan, but was then removed in favour of
413 defining a 'default_scope' class method, but has now been added back in by Jon Leighton.
414 The relevant lighthouse ticket is #1812.
415
416 * Default scopes are now evaluated at the latest possible moment, to avoid problems where
417 scopes would be created which would implicitly contain the default scope, which would then
418 be impossible to get rid of via Model.unscoped.
419
420 Note that this means that if you are inspecting the internal structure of an
421 ActiveRecord::Relation, it will *not* contain the default scope, though the resulting
422 query will do. You can get a relation containing the default scope by calling
423 ActiveRecord#with_default_scope, though this is not part of the public API.
424
425 *Jon Leighton*
426
427 * If you wish to merge default scopes in special ways, it is recommended to define your default
428 scope as a class method and use the standard techniques for sharing code (inheritance, mixins,
429 etc.):
430
431 class Post < ActiveRecord::Base
432 def self.default_scope
433 where(:published => true).where(:hidden => false)
434 end
435 end
436
437 *Jon Leighton*
438
439 * PostgreSQL adapter only supports PostgreSQL version 8.2 and higher.
440
441 * ConnectionManagement middleware is changed to clean up the connection pool
442 after the rack body has been flushed.
443
444 * Added an update_column method on ActiveRecord. This new method updates a given attribute on an object, skipping validations and callbacks.
445 It is recommended to use #update_attribute unless you are sure you do not want to execute any callback, including the modification of
446 the updated_at column. It should not be called on new records.
447 Example:
448
449 User.first.update_column(:name, "sebastian") # => true
450
451 *Sebastian Martinez*
452
453 * Associations with a :through option can now use *any* association as the
454 through or source association, including other associations which have a
455 :through option and has_and_belongs_to_many associations
456
457 *Jon Leighton*
458
459 * The configuration for the current database connection is now accessible via
460 ActiveRecord::Base.connection_config. *fxn*
461
462 * limits and offsets are removed from COUNT queries unless both are supplied.
463 For example:
464
465 People.limit(1).count # => 'SELECT COUNT(*) FROM people'
466 People.offset(1).count # => 'SELECT COUNT(*) FROM people'
467 People.limit(1).offset(1).count # => 'SELECT COUNT(*) FROM people LIMIT 1 OFFSET 1'
468
469 *lighthouse #6262*
470
471 * ActiveRecord::Associations::AssociationProxy has been split. There is now an Association class
472 (and subclasses) which are responsible for operating on associations, and then a separate,
473 thin wrapper called CollectionProxy, which proxies collection associations.
474
475 This prevents namespace pollution, separates concerns, and will allow further refactorings.
476
477 Singular associations (has_one, belongs_to) no longer have a proxy at all. They simply return
478 the associated record or nil. This means that you should not use undocumented methods such
479 as bob.mother.create - use bob.create_mother instead.
480
481 *Jon Leighton*
482
483 * Make has_many :through associations work correctly when you build a record and then save it. This
484 requires you to set the :inverse_of option on the source reflection on the join model, like so:
485
486 class Post < ActiveRecord::Base
487 has_many :taggings
488 has_many :tags, :through => :taggings
489 end
490
491 class Tagging < ActiveRecord::Base
492 belongs_to :post
493 belongs_to :tag, :inverse_of => :tagging # :inverse_of must be set!
494 end
495
496 class Tag < ActiveRecord::Base
497 has_many :taggings
498 has_many :posts, :through => :taggings
499 end
500
501 post = Post.first
502 tag = post.tags.build :name => "ruby"
503 tag.save # will save a Taggable linking to the post
504
505 *Jon Leighton*
506
507 * Support the :dependent option on has_many :through associations. For historical and practical
508 reasons, :delete_all is the default deletion strategy employed by association.delete(*records),
509 despite the fact that the default strategy is :nullify for regular has_many. Also, this only
510 works at all if the source reflection is a belongs_to. For other situations, you should directly
511 modify the through association.
512
513 *Jon Leighton*
514
515 * Changed the behaviour of association.destroy for has_and_belongs_to_many and has_many :through.
516 From now on, 'destroy' or 'delete' on an association will be taken to mean 'get rid of the link',
517 not (necessarily) 'get rid of the associated records'.
518
519 Previously, has_and_belongs_to_many.destroy(*records) would destroy the records themselves. It
520 would not delete any records in the join table. Now, it deletes the records in the join table.
521
522 Previously, has_many_through.destroy(*records) would destroy the records themselves, and the
523 records in the join table. [Note: This has not always been the case; previous version of Rails
524 only deleted the records themselves.] Now, it destroys only the records in the join table.
525
526 Note that this change is backwards-incompatible to an extent, but there is unfortunately no
527 way to 'deprecate' it before changing it. The change is being made in order to have
528 consistency as to the meaning of 'destroy' or 'delete' across the different types of associations.
529
530 If you wish to destroy the records themselves, you can do records.association.each(&:destroy)
531
532 *Jon Leighton*
533
534 * 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*
535
536 Example:
537
538 change_table(:users, :bulk => true) do |t|
539 t.string :company_name
540 t.change :birthdate, :datetime
541 end
542
543 This will now result in:
544
545 ALTER TABLE `users` ADD COLUMN `company_name` varchar(255), CHANGE `updated_at` `updated_at` datetime DEFAULT NULL
546
547 * Removed support for accessing attributes on a has_and_belongs_to_many join table. This has been
548 documented as deprecated behaviour since April 2006. Please use has_many :through instead.
549 *Jon Leighton*
550
551 * Added a create_association! method for has_one and belongs_to associations. *Jon Leighton*
552
553 * Migration files generated from model and constructive migration generators
554 (for example, add_name_to_users) use the reversible migration's `change`
555 method instead of the ordinary `up` and `down` methods. *Prem Sichanugrist*
556
557 * Removed support for interpolating string SQL conditions on associations. Instead, you should
558 use a proc, like so:
559
560 Before:
561
562 has_many :things, :conditions => 'foo = #{bar}'
563
564 After:
565
566 has_many :things, :conditions => proc { "foo = #{bar}" }
567
568 Inside the proc, 'self' is the object which is the owner of the association, unless you are
569 eager loading the association, in which case 'self' is the class which the association is within.
570
571 You can have any "normal" conditions inside the proc, so the following will work too:
572
573 has_many :things, :conditions => proc { ["foo = ?", bar] }
574
575 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
576 'record' to get the record being inserted or deleted. This is now passed as an argument to
577 the proc.
578
579 * Added ActiveRecord::Base#has_secure_password (via ActiveModel::SecurePassword) to encapsulate dead-simple password usage with BCrypt encryption and salting [DHH]. Example:
580
581 # Schema: User(name:string, password_digest:string, password_salt:string)
582 class User < ActiveRecord::Base
583 has_secure_password
584 end
585
586 user = User.new(:name => "david", :password => "", :password_confirmation => "nomatch")
587 user.save # => false, password required
588 user.password = "mUc3m00RsqyRe"
589 user.save # => false, confirmation doesn't match
590 user.password_confirmation = "mUc3m00RsqyRe"
591 user.save # => true
592 user.authenticate("notright") # => false
593 user.authenticate("mUc3m00RsqyRe") # => user
594 User.find_by_name("david").try(:authenticate, "notright") # => nil
595 User.find_by_name("david").try(:authenticate, "mUc3m00RsqyRe") # => user
596
597
598 * When a model is generated add_index is added by default for belongs_to or references columns
599
600 rails g model post user:belongs_to will generate the following:
601
602 class CreatePosts < ActiveRecord::Migration
603 def up
604 create_table :posts do |t|
605 t.belongs_to :user
606 t.timestamps
607 end
608
609 add_index :posts, :user_id
610 end
611
612 def down
613 drop_table :posts
614 end
615 end
616
617 *Santiago Pastorino*
618
619 * Setting the id of a belongs_to object will update the reference to the
620 object. [#2989 state:resolved]
621 * ActiveRecord::Base#dup and ActiveRecord::Base#clone semantics have changed
622 to closer match normal Ruby dup and clone semantics.
623 * Calling ActiveRecord::Base#clone will result in a shallow copy of the record,
624 including copying the frozen state. No callbacks will be called.
625 * Calling ActiveRecord::Base#dup will duplicate the record, including calling
626 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.
627 * Migrations can be defined as reversible, meaning that the migration system
628 will figure out how to reverse your migration. To use reversible migrations, just define the "change" method. For example:
629 class MyMigration < ActiveRecord::Migration
630 def change
631 create_table(:horses) do
632 t.column :content, :text
633 t.column :remind_at, :datetime
634 end
635 end
636 end
637
638 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.
639 * Migrations should use instance methods rather than class methods:
640 class FooMigration < ActiveRecord::Migration
641 def up
642 ...
643 end
644 end
645
646 *Aaron Patterson*
647
648 * has_one maintains the association with separate after_create/after_update instead
649 of a single after_save. *fxn*
650
651 * The following code:
652
653 Model.limit(10).scoping { Model.count }
654
655 now generates the following SQL:
656
657 SELECT COUNT(*) FROM models LIMIT 10
658
659 This may not return what you want. Instead, you may with to do something
660 like this:
661
662 Model.limit(10).scoping { Model.all.size }
663
664 *Aaron Patterson*
665
666
667 ## Rails 3.0.7 (April 18, 2011) ##
668
669 * Destroying records via nested attributes works independent of reject_if LH #6006 *Durran Jordan*
670
671 * Delegate any? and many? to Model.scoped for consistency *Andrew White*
672
673 * Quote the ORDER BY clause in batched finds - fixes #6620 *Andrew White*
674
675 * Change exists? so records are not instantiated - fixes #6127. This prevents after_find
676 and after_initialize callbacks being triggered when checking for record existence.
677 *Andrew White*
678
679 * Fix performance bug with attribute accessors which only occurred on Ruby 1.8.7, and ensure we
680 cache type-casted values when the column returned from the db contains non-standard chars.
681 *Jon Leighton*
682
683 * Fix a performance regression introduced here 86acbf1cc050c8fa8c74a10c735e467fb6fd7df8
684 related to read_attribute method *Stian Grytøyr*
685
686
687 ## Rails 3.0.6 (April 5, 2011) ##
688
689 * Un-deprecate reorder method *Sebastian Martinez*
690
691 * Extensions are applied when calling +except+ or +only+ on relations.
692 Thanks to Iain Hecker.
693
694 * Schemas set in set_table_name are respected by the mysql adapter. LH #5322
695
696 * Fixed a bug when empty? was called on a grouped Relation that wasn't loaded.
697 LH #5829
698
699 * Reapply extensions when using except and only. Thanks Iain Hecker.
700
701 * Binary data is escaped when being inserted to SQLite3 Databases. Thanks
702 Naruse!
703
704
705 ## Rails 3.0.5 (February 26, 2011) ##
706
707 * Model.where(:column => 1).where(:column => 2) will always produce an AND
708 query.
709 *Aaron Patterson*
710
711 * Deprecated support for interpolated association conditions in the form of :conditions => 'foo = #{bar}'.
712
713 Instead, you should use a proc, like so:
714
715 Before:
716
717 has_many :things, :conditions => 'foo = #{bar}'
718
719 After:
720
721 has_many :things, :conditions => proc { "foo = #{bar}" }
722
723 Inside the proc, 'self' is the object which is the owner of the association, unless you are
724 eager loading the association, in which case 'self' is the class which the association is within.
725
726 You can have any "normal" conditions inside the proc, so the following will work too:
727
728 has_many :things, :conditions => proc { ["foo = ?", bar] }
729
730 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
731 'record' to get the record being inserted or deleted. This is now passed as an argument to
732 the proc.
733
734 *Jon Leighton*
735
736
737 ## Rails 3.0.4 (February 8, 2011) ##
738
739 * Added deprecation warning for has_and_belongs_to_many associations where the join table has
740 additional attributes other than the keys. Access to these attributes is removed in 3.1.
741 Please use has_many :through instead. *Jon Leighton*
742
743
744 ## Rails 3.0.3 (November 16, 2010) ##
745
746 * Support find by class like this: Post.where(:name => Post)
747
748
749 ## Rails 3.0.2 (November 15, 2010) ##
750
751 * Dramatic speed increase (see: http://engineering.attinteractive.com/2010/10/arel-two-point-ohhhhh-yaaaaaa/) *Aaron Patterson*
752
753 * reorder is deprecated in favor of except(:order).order(...) *Santiago Pastorino*
754
755 * except is now AR public API
756
757 Model.order('name').except(:order).order('salary')
758
759 generates:
760
761 SELECT * FROM models ORDER BY salary
762
763 *Santiago Pastorino*
764
765 * The following code:
766
767 Model.limit(10).scoping { Model.count }
768
769 now generates the following SQL:
770
771 SELECT COUNT(*) FROM models LIMIT 10
772
773 This may not return what you want. Instead, you may with to do something
774 like this:
775
776 Model.limit(10).scoping { Model.all.size }
777
778 *Aaron Patterson*
779
780
781 ## Rails 3.0.1 (October 15, 2010) ##
782
783 * Introduce a fix for CVE-2010-3993
784
785
786 ## Rails 3.0.0 (August 29, 2010) ##
787
788 * Changed update_attribute to not run callbacks and update the record directly in the database *Neeraj Singh*
789
790 * Add scoping and unscoped as the syntax to replace the old with_scope and with_exclusive_scope *José Valim*
791
792 * New rake task, db:migrate:status, displays status of migrations #4947 *Kevin Skoglund*
793
794 * select and order for ActiveRecord now always concatenate nested calls. Use reorder if you want the original order to be overwritten *Santiago Pastorino*
795
796 * PostgreSQL: ensure the database time zone matches Ruby's time zone #4895 *Aaron Patterson*
797
798 * Fixed that ActiveRecord::Base.compute_type would swallow NoMethodError #4751 *Andrew Bloomgarden, Andrew White*
799
800 * Add index length support for MySQL. #1852 *Emili Parreno, Pratik Naik*
801
802 Example:
803
804 add_index(:accounts, :name, :name => 'by_name', :length => 10)
805 => CREATE INDEX by_name ON accounts(name(10))
806
807 add_index(:accounts, [:name, :surname], :name => 'by_name_surname', :length => {:name => 10, :surname => 15})
808 => CREATE INDEX by_name_surname ON accounts(name(10), surname(15))
809
810 * find_or_create_by_attr(value, ...) works when attr is protected. #4457 *Santiago Pastorino, Marc-André Lafortune*
811
812 * New callbacks: after_commit and after_rollback. Do expensive operations like image thumbnailing after_commit instead of after_save. #2991 *Brian Durand*
813
814 * 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*
815
816 * 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*
817
818 * PostgreSQL: drop support for old postgres driver. Use pg 0.9.0 or later. *Jeremy Kemper*
819
820 * Observers can prevent records from saving by returning false, just like before_save and friends. #4087 *Mislav Marohnić*
821
822 * Add Relation extensions. *Pratik Naik*
823
824 users = User.where(:admin => true).extending(User::AdminPowers)
825
826 latest_users = User.order('created_at DESC') do
827 def posts_count
828 Post.count(:user_id => to_a.map(&:id))
829 end
830 end
831
832 * To prefix the table names of all models in a module, define self.table_name_prefix on the module. #4032 *Andrew White*
833
834 * 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*
835
836 * 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*
837
838 * Allow relations to be used as scope.
839
840 class Item
841 scope :red, where(:colour => 'red')
842 end
843
844 Item.red.limit(10) # Ten red items
845
846 * Rename named_scope to scope. *Pratik Naik*
847
848 * Changed ActiveRecord::Base.store_full_sti_class to be true by default reflecting the previously announced Rails 3 default *DHH*
849
850 * Add Relation#except. *Pratik Naik*
851
852 one_red_item = Item.where(:colour => 'red').limit(1)
853 all_items = one_red_item.except(:where, :limit)
854
855 * Add Relation#delete_all. *Pratik Naik*
856
857 Item.where(:colour => 'red').delete_all
858
859 * Add Model.having and Relation#having. *Pratik Naik*
860
861 Developer.group("salary").having("sum(salary) > 10000").select("salary")
862
863 * Add Relation#count. *Pratik Naik*
864
865 legends = People.where("age > 100")
866 legends.count
867 legends.count(:age, :distinct => true)
868 legends.select('id').count
869
870 * Add Model.readonly and association_collection#readonly finder method. *Pratik Naik*
871
872 Post.readonly.to_a # Load all posts in readonly mode
873 @user.items.readonly(false).to_a # Load all the user items in writable mode
874
875 * Add .lock finder method *Pratik Naik*
876
877 User.lock.where(:name => 'lifo').to_a
878
879 old_items = Item.where("age > 100")
880 old_items.lock.each {|i| .. }
881
882 * Add Model.from and association_collection#from finder methods *Pratik Naik*
883
884 user = User.scoped
885 user.select('*').from('users, items')
886
887 * Add relation.destroy_all *Pratik Naik*
888
889 old_items = Item.where("age > 100")
890 old_items.destroy_all
891
892 * Add relation.exists? *Pratik Naik*
893
894 red_items = Item.where(:colours => 'red')
895 red_items.exists?
896 red_items.exists?(1)
897
898 * Add find(ids) to relations. *Pratik Naik*
899
900 old_users = User.order("age DESC")
901 old_users.find(1)
902 old_users.find(1, 2, 3)
903
904 * Add new finder methods to association collection. *Pratik Naik*
905
906 class User < ActiveRecord::Base
907 has_many :items
908 end
909
910 user = User.first
911 user.items.where(:items => {:colour => 'red'})
912 user.items.select('items.id')
913
914 * Add relation.reload to force reloading the records. *Pratik Naik*
915
916 topics = Topic.scoped
917 topics.to_a # force load
918 topics.first # returns a cached record
919 topics.reload
920 topics.first # Fetches a new record from the database
921
922 * Rename Model.conditions and relation.conditions to .where. *Pratik Naik*
923
924 Before :
925 User.conditions(:name => 'lifo')
926 User.select('id').conditions(["age > ?", 21])
927
928 Now :
929 User.where(:name => 'lifo')
930 User.select('id').where(["age > ?", 21])
931
932 * Add Model.select/group/order/limit/joins/conditions/preload/eager_load class methods returning a lazy relation. *Pratik Naik*
933
934 Examples :
935
936 posts = Post.select('id).order('name') # Returns a lazy relation
937 posts.each {|p| puts p.id } # Fires "select id from posts order by name"
938
939 * Model.scoped now returns a relation if invoked without any arguments. *Pratik Naik*
940
941 Example :
942
943 posts = Post.scoped
944 posts.size # Fires "select count(*) from posts" and returns the count
945 posts.each {|p| puts p.name } # Fires "select * from posts" and loads post objects
946
947 * Association inverses for belongs_to, has_one, and has_many. Optimization to reduce database queries. #3533 *Murray Steele*
948
949 # post.comments sets each comment's post without needing to :include
950 class Post < ActiveRecord::Base
951 has_many :comments, :inverse_of => :post
952 end
953
954 * MySQL: add_ and change_column support positioning. #3286 *Ben Marini*
955
956 * Reset your Active Record counter caches with the reset_counter_cache class method. #1211 *Mike Breen, Gabe da Silveira*
957
958 * Remove support for SQLite 2. Please upgrade to SQLite 3+ or install the plugin from git://github.com/rails/sqlite2_adapter.git *Pratik Naik*
959
960 * PostgreSQL: XML datatype support. #1874 *Leonardo Borges*
961
962 * 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*
963
964 * SQLite: drop support for 'dbfile' option in favor of 'database.' #2363 *Paul Hinze, Jeremy Kemper*
965
966 * Added :primary_key option to belongs_to associations. #765 *Szymon Nowak, Philip Hallstrom, Noel Rocha*
967 # employees.company_name references companies.name
968 Employee.belongs_to :company, :primary_key => 'name', :foreign_key => 'company_name'
969
970 * Implement #many? for NamedScope and AssociationCollection using #size. #1500 *Chris Kampmeier*
971
972 * Added :touch option to belongs_to associations that will touch the parent record when the current record is saved or destroyed *DHH*
973
974 * Added ActiveRecord::Base#touch to update the updated_at/on attributes (or another specified timestamp) with the current time *DHH*
975
976
977 ## 2.3.2 Final (March 15, 2009) ##
978
979 * Added ActiveRecord::Base.find_each and ActiveRecord::Base.find_in_batches for batch processing *DHH/Jamis Buck*
980
981 * Added that ActiveRecord::Base.exists? can be called with no arguments #1817 *Scott Taylor*
982
983 * Add Support for updating deeply nested models from a single form. #1202 *Eloy Duran*
984
985 class Book < ActiveRecord::Base
986 has_one :author
987 has_many :pages
988
989 accepts_nested_attributes_for :author, :pages
990 end
991
992 * Make after_save callbacks fire only if the record was successfully saved. #1735 *Michael Lovitt*
993
994 Previously the callbacks would fire if a before_save cancelled saving.
995
996 * Support nested transactions using database savepoints. #383 *Jonathan Viney, Hongli Lai*
997
998 * Added dynamic scopes ala dynamic finders #1648 *Yaroslav Markin*
999
1000 * Fixed that ActiveRecord::Base#new_record? should return false (not nil) for existing records #1219 *Yaroslav Markin*
1001
1002 * I18n the word separator for error messages. Introduces the activerecord.errors.format.separator translation key. #1294 *Akira Matsuda*
1003
1004 * Add :having as a key to find and the relevant associations. *Emilio Tagua*
1005
1006 * Added default_scope to Base #1381 [Paweł Kondzior]. Example:
1007
1008 class Person < ActiveRecord::Base
1009 default_scope :order => 'last_name, first_name'
1010 end
1011
1012 class Company < ActiveRecord::Base
1013 has_many :people
1014 end
1015
1016 Person.all # => Person.find(:all, :order => 'last_name, first_name')
1017 Company.find(1).people # => Person.find(:all, :order => 'last_name, first_name', :conditions => { :company_id => 1 })
1018
1019
1020 ## 2.2.1 RC2 (November 14th, 2008) ##
1021
1022 * Ensure indices don't flip order in schema.rb #1266 *Jordi Bunster*
1023
1024 * Fixed that serialized strings should never be type-casted (i.e. turning "Yes" to a boolean) #857 *Andreas Korth*
1025
1026
1027 ## 2.2.0 RC1 (October 24th, 2008) ##
1028
1029 * Skip collection ids reader optimization if using :finder_sql *Jeremy Kemper*
1030
1031 * Add Model#delete instance method, similar to Model.delete class method. #1086 *Hongli Lai (Phusion)*
1032
1033 * MySQL: cope with quirky default values for not-null text columns. #1043 *Frederick Cheung*
1034
1035 * Multiparameter attributes skip time zone conversion for time-only columns [#1030 state:resolved] *Geoff Buesing*
1036
1037 * Base.skip_time_zone_conversion_for_attributes uses class_inheritable_accessor, so that subclasses don't overwrite Base [#346 state:resolved] *Emilio Tagua*
1038
1039 * Added find_last_by dynamic finder #762 *Emilio Tagua*
1040
1041 * Internal API: configurable association options and build_association method for reflections so plugins may extend and override. #985 *Hongli Lai (Phusion)*
1042
1043 * Changed benchmarks to be reported in milliseconds *David Heinemeier Hansson*
1044
1045 * Connection pooling. #936 *Nick Sieger*
1046
1047 * Merge scoped :joins together instead of overwriting them. May expose scoping bugs in your code! #501 *Andrew White*
1048
1049 * 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*
1050
1051 * Transactional migrations for databases which support them. #834 *divoxx, Adam Wiggins, Tarmo Tänav*
1052
1053 * Set config.active_record.timestamped_migrations = false to have migrations with numeric prefix instead of UTC timestamp. #446. *Andrew Stone, Nik Wakelin*
1054
1055 * change_column_default preserves the not-null constraint. #617 *Tarmo Tänav*
1056
1057 * Fixed that create database statements would always include "DEFAULT NULL" (Nick Sieger) *#334*
1058
1059 * Add :tokenizer option to validates_length_of to specify how to split up the attribute string. #507. [David Lowenfels] Example :
1060
1061 \# Ensure essay contains at least 100 words.
1062 validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least %d words."), :tokenizer => lambda {|str| str.scan(/\w+/) }
1063
1064 * Allow conditions on multiple tables to be specified using hash. [Pratik Naik]. Example:
1065
1066 User.all :joins => :items, :conditions => { :age => 10, :items => { :color => 'black' } }
1067 Item.first :conditions => { :items => { :color => 'red' } }
1068
1069 * Always treat integer :limit as byte length. #420 *Tarmo Tänav*
1070
1071 * Partial updates don't update lock_version if nothing changed. #426 *Daniel Morrison*
1072
1073 * Fix column collision with named_scope and :joins. #46 *Duncan Beevers, Mark Catley*
1074
1075 * db:migrate:down and :up update schema_migrations. #369 *Michael Raidel, RaceCondition*
1076
1077 * PostgreSQL: support :conditions => [':foo::integer', { :foo => 1 }] without treating the ::integer typecast as a bind variable. *Tarmo Tänav*
1078
1079 * MySQL: rename_column preserves column defaults. #466 *Diego Algorta*
1080
1081 * Add :from option to calculations. #397 *Ben Munat*
1082
1083 * Add :validate option to associations to enable/disable the automatic validation of associated models. Resolves #301. *Jan De Poorter*
1084
1085 * PostgreSQL: use 'INSERT ... RETURNING id' for 8.2 and later. *Jeremy Kemper*
1086
1087 * Added SQL escaping for :limit and :offset in MySQL *Jonathan Wiess*
1088
1089
1090 ## 2.1.0 (May 31st, 2008) ##
1091
1092 * Add ActiveRecord::Base.sti_name that checks ActiveRecord::Base#store_full_sti_class? and returns either the full or demodulized name. *Rick Olson*
1093
1094 * Add first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
1095
1096 * Added SQL escaping for :limit and :offset #288 *Aaron Bedra, Steven Bristol, Jonathan Wiess*
1097
1098 * Added first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
1099
1100 * Ensure hm:t preloading honours reflection options. Resolves #137. *Frederick Cheung*
1101
1102 * Added protection against duplicate migration names (Aslak Hellesøy) *#112*
1103
1104 * 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*
1105
1106 * 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*
1107
1108 * Added change_table for migrations (Jeff Dean) [#71]. Example:
1109
1110 change_table :videos do |t|
1111 t.timestamps # adds created_at, updated_at
1112 t.belongs_to :goat # adds goat_id integer
1113 t.string :name, :email, :limit => 20 # adds name and email both with a 20 char limit
1114 t.remove :name, :email # removes the name and email columns
1115 end
1116
1117 * Fixed has_many :through .create with no parameters caused a "can't dup NilClass" error (Steven Soroka) *#85*
1118
1119 * Added block-setting of attributes for Base.create like Base.new already has (Adam Meehan) *#39*
1120
1121 * Fixed that pessimistic locking you reference the quoted table name (Josh Susser) *#67*
1122
1123 * Fixed that change_column should be able to use :null => true on a field that formerly had false [Nate Wiger] *#26*
1124
1125 * Added that the MySQL adapter should map integer to either smallint, int, or bigint depending on the :limit just like PostgreSQL *David Heinemeier Hansson*
1126
1127 * Change validates_uniqueness_of :case_sensitive option default back to true (from [9160]). Love your database columns, don't LOWER them. *Rick Olson*
1128
1129 * Add support for interleaving migrations by storing which migrations have run in the new schema_migrations table. Closes #11493 *Jordi Bunster*
1130
1131 * ActiveRecord::Base#sum defaults to 0 if no rows are returned. Closes #11550 *Kamal Fariz Mahyuddin*
1132
1133 * Ensure that respond_to? considers dynamic finder methods. Closes #11538. *James Mead*
1134
1135 * Ensure that save on parent object fails for invalid has_one association. Closes #10518. *Pratik Naik*
1136
1137 * Remove duplicate code from associations. *Pratik Naik*
1138
1139 * Refactor HasManyThroughAssociation to inherit from HasManyAssociation. Association callbacks and <association>_ids= now work with hm:t. #11516 *Ruy Asan*
1140
1141 * Ensure HABTM#create and HABTM#build do not load entire association. *Pratik Naik*
1142
1143 * Improve documentation. *Xavier Noria, Jack Danger Canty, leethal*
1144
1145 * Tweak ActiveRecord::Base#to_json to include a root value in the returned hash: {"post": {"title": ...}} *Rick Olson*
1146
1147 Post.find(1).to_json # => {"title": ...}
1148 config.active_record.include_root_in_json = true
1149 Post.find(1).to_json # => {"post": {"title": ...}}
1150
1151 * Add efficient #include? to AssociationCollection (for has_many/has_many :through/habtm). *stopdropandrew*
1152
1153 * PostgreSQL: create_ and drop_database support. #9042 *ez, pedz, Nick Sieger*
1154
1155 * Ensure that validates_uniqueness_of works with with_scope. Closes #9235. *Nik Wakelin, cavalle*
1156
1157 * Partial updates include only unsaved attributes. Off by default; set YourClass.partial_updates = true to enable. *Jeremy Kemper*
1158
1159 * Removing unnecessary uses_tzinfo helper from tests, given that TZInfo is now bundled *Geoff Buesing*
1160
1161 * Fixed that validates_size_of :within works in associations #11295, #10019 *cavalle*
1162
1163 * Track changes to unsaved attributes. *Jeremy Kemper*
1164
1165 * 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*
1166
1167 * Fixed that has_many :through would ignore the hash conditions #11447 *Emilio Tagua*
1168
1169 * Fix issue where the :uniq option of a has_many :through association is ignored when find(:all) is called. Closes #9407 *cavalle*
1170
1171 * Fix duplicate table alias error when including an association with a has_many :through association on the same join table. Closes #7310 *cavalle*
1172
1173 * More efficient association preloading code that compacts a through_records array in a central location. Closes #11427 *Jack Danger Canty*
1174
1175 * Improve documentation. *Ryan Bigg, Jan De Poorter, Cheah Chu Yeow, Xavier Shay, Jack Danger Canty, Emilio Tagua, Xavier Noria, Sunny Ripert*
1176
1177 * Fixed that ActiveRecord#Base.find_or_create/initialize would not honor attr_protected/accessible when used with a hash #11422 *Emilio Tagua*
1178
1179 * Added ActiveRecord#Base.all/first/last as aliases for find(:all/:first/:last) #11413 *nkallen, Chris O'Sullivan*
1180
1181 * Merge the has_finder gem, renamed as 'named_scope'. #11404 *nkallen*
1182
1183 class Article < ActiveRecord::Base
1184 named_scope :published, :conditions => {:published => true}
1185 named_scope :popular, :conditions => ...
1186 end
1187
1188 Article.published.paginate(:page => 1)
1189 Article.published.popular.count
1190 Article.popular.find(:first)
1191 Article.popular.find(:all, :conditions => {...})
1192
1193 See http://pivots.pivotallabs.com/users/nick/blog/articles/284-hasfinder-it-s-now-easier-than-ever-to-create-complex-re-usable-sql-queries
1194
1195 * Add has_one :through support. #4756 *Chris O'Sullivan*
1196
1197 * Migrations: create_table supports primary_key_prefix_type. #10314 *student, Chris O'Sullivan*
1198
1199 * Added logging for dependency load errors with fixtures #11056 *stuthulhu*
1200
1201 * Time zone aware attributes use Time#in_time_zone *Geoff Buesing*
1202
1203 * Fixed that scoped joins would not always be respected #6821 *Theory/Jack Danger Canty*
1204
1205 * Ensure that ActiveRecord::Calculations disambiguates field names with the table name. #11027 *cavalle*
1206
1207 * Added add/remove_timestamps to the schema statements for adding the created_at/updated_at columns on existing tables #11129 *jramirez*
1208
1209 * Added ActiveRecord::Base.find(:last) #11338 *Emilio Tagua*
1210
1211 * test_native_types expects DateTime.local_offset instead of DateTime.now.offset; fixes test breakage due to dst transition *Geoff Buesing*
1212
1213 * Add :readonly option to HasManyThrough associations. #11156 *Emilio Tagua*
1214
1215 * Improve performance on :include/:conditions/:limit queries by selectively joining in the pre-query. #9560 *dasil003*
1216
1217 * Perf fix: Avoid the use of named block arguments. Closes #11109 *adymo*
1218
1219 * PostgreSQL: support server versions 7.4 through 8.0 and the ruby-pg driver. #11127 *jdavis*
1220
1221 * Ensure association preloading doesn't break when an association returns nil. ##11145 *GMFlash*
1222
1223 * Make dynamic finders respect the :include on HasManyThrough associations. #10998. *cpytel*
1224
1225 * 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*
1226
1227 * Refactor ConnectionAdapters::Column.new_time: leverage DateTime failover behavior of Time#time_with_datetime_fallback *Geoff Buesing*
1228
1229 * Improve associations performance by using symbol callbacks instead of string callbacks. #11108 *adymo*
1230
1231 * Optimise the BigDecimal conversion code. #11110 *adymo*
1232
1233 * Introduce the :readonly option to all associations. Records from the association cannot be saved. #11084 *Emilio Tagua*
1234
1235 * Multiparameter attributes for time columns fail over to DateTime when out of range of Time *Geoff Buesing*
1236
1237 * Base#instantiate_time_object uses Time.zone.local() *Geoff Buesing*
1238
1239 * Add timezone-aware attribute readers and writers. #10982 *Geoff Buesing*
1240
1241 * Instantiating time objects in multiparameter attributes uses Time.zone if available. #10982 *Rick Olson*
1242
1243 * Add note about how ActiveRecord::Observer classes are initialized in a Rails app. #10980 *Xavier Noria*
1244
1245 * MySQL: omit text/blob defaults from the schema instead of using an empty string. #10963 *mdeiters*
1246
1247 * belongs_to supports :dependent => :destroy and :delete. #10592 *Jonathan Viney*
1248
1249 * Introduce preload query strategy for eager :includes. #9640 *Frederick Cheung, Aliaksey Kandratsenka, codafoo*
1250
1251 * Support aggregations in finder conditions. #10572 *Ryan Kinderman*
1252
1253 * Organize and clean up the Active Record test suite. #10742 *John Barnette*
1254
1255 * Ensure that modifying has_and_belongs_to_many actions clear the query cache. Closes #10840 *john.andrews*
1256
1257 * Fix issue where Table#references doesn't pass a :null option to a *_type attribute for polymorphic associations. Closes #10753 *railsjitsu*
1258
1259 * Fixtures: removed support for the ancient pre-YAML file format. #10736 *John Barnette*
1260
1261 * More thoroughly quote table names. #10698 *dimdenis, lotswholetime, Jeremy Kemper*
1262
1263 * 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*
1264
1265 * Added ActiveRecord::Base.cache_key to make it easier to cache Active Records in combination with the new ActiveSupport::Cache::* libraries *David Heinemeier Hansson*
1266
1267 * Make sure CSV fixtures are compatible with ruby 1.9's new csv implementation. *JEG2*
1268
1269 * Added by parameter to increment, decrement, and their bang varieties so you can do player1.increment!(:points, 5) #10542 *Sam*
1270
1271 * Optimize ActiveRecord::Base#exists? to use #select_all instead of #find. Closes #10605 *jamesh, Frederick Cheung, protocool*
1272
1273 * Don't unnecessarily load has_many associations in after_update callbacks. Closes #6822 *stopdropandrew, canadaduane*
1274
1275 * Eager belongs_to :include infers the foreign key from the association name rather than the class name. #10517 *Jonathan Viney*
1276
1277 * SQLite: fix rename_ and remove_column for columns with unique indexes. #10576 *Brandon Keepers*
1278
1279 * Ruby 1.9 compatibility. #10655 *Jeremy Kemper, Dirkjan Bussink*
1280
1281
1282 ## 2.0.2 (December 16th, 2007) ##
1283
1284 * Ensure optimistic locking handles nil #lock_version values properly. Closes #10510 *Rick Olson*
1285
1286 * Make the Fixtures Test::Unit enhancements more supporting for double-loaded test cases. Closes #10379 *brynary*
1287
1288 * Fix that validates_acceptance_of still works for non-existent tables (useful for bootstrapping new databases). Closes #10474 *Josh Susser*
1289
1290 * Ensure that the :uniq option for has_many :through associations retains the order. #10463 *remvee*
1291
1292 * Base.exists? doesn't rescue exceptions to avoid hiding SQL errors. #10458 *Michael Klishin*
1293
1294 * Documentation: Active Record exceptions, destroy_all and delete_all. #10444, #10447 *Michael Klishin*
1295
1296
1297 ## 2.0.1 (December 7th, 2007) ##
1298
1299 * Removed query cache rescue as it could cause code to be run twice (closes #10408) *David Heinemeier Hansson*
1300
1301
1302 ## 2.0.0 (December 6th, 2007) ##
1303
1304 * 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*
1305
1306 * 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*
1307
1308 * Fixed that the truncation of strings longer than 50 chars should use inspect
1309 so newlines etc are escaped #10385 [Norbert Crombach]
1310 * Fixed that habtm associations should be able to set :select as part of their definition and have that honored *David Heinemeier Hansson*
1311
1312 * Document how the :include option can be used in Calculations::calculate. Closes #7446 *adamwiggins, ultimoamore*
1313
1314 * Fix typo in documentation for polymorphic associations w/STI. Closes #7461 *johnjosephbachir*
1315
1316 * 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*
1317
1318 * More complete documentation for find_by_sql. Closes #7912 *fearoffish*
1319
1320 * Added ActiveRecord::Base#becomes to turn a record into one of another class (mostly relevant for STIs) [David Heinemeier Hansson]. Example:
1321
1322 render :partial => @client.becomes(Company) # renders companies/company instead of clients/client
1323
1324 * Fixed that to_xml should not automatically pass :procs to associations included with :include #10162 *Cheah Chu Yeow*
1325
1326 * Fix documentation typo introduced in [8250]. Closes #10339 *Henrik N*
1327
1328 * Foxy fixtures: support single-table inheritance. #10234 *tom*
1329
1330 * Foxy fixtures: allow mixed usage to make migration easier and more attractive. #10004 *lotswholetime*
1331
1332 * Make the record_timestamps class-inheritable so it can be set per model. #10004 *tmacedo*
1333
1334 * Allow validates_acceptance_of to use a real attribute instead of only virtual (so you can record that the acceptance occured) #7457 *ambethia*
1335
1336 * DateTimes use Ruby's default calendar reform setting. #10201 *Geoff Buesing*
1337
1338 * Dynamic finders on association collections respect association :order and :limit. #10211, #10227 *Patrick Joyce, Rick Olson, Jack Danger Canty*
1339
1340 * Add 'foxy' support for fixtures of polymorphic associations. #10183 *John Barnette, David Lowenfels*
1341
1342 * validates_inclusion_of and validates_exclusion_of allow formatted :message strings. #8132 *devrieda, Mike Naberezny*
1343
1344 * attr_readonly behaves well with optimistic locking. #10188 *Nick Bugajski*
1345
1346 * Base#to_xml supports the nil="true" attribute like Hash#to_xml. #8268 *Jonathan del Strother*
1347
1348 * Change plings to the more conventional quotes in the documentation. Closes #10104 *Jack Danger Canty*
1349
1350 * Fix HasManyThrough Association so it uses :conditions on the HasMany Association. Closes #9729 *Jack Danger Canty*
1351
1352 * Ensure that column names are quoted. Closes #10134 *wesley.moxam*
1353
1354 * Smattering of grammatical fixes to documentation. Closes #10083 *Bob Silva*
1355
1356 * Enhance explanation with more examples for attr_accessible macro. Closes #8095 *fearoffish, Marcel Molina Jr.*
1357
1358 * Update association/method mapping table to refected latest collection methods for has_many :through. Closes #8772 *Pratik Naik*
1359
1360 * Explain semantics of having several different AR instances in a transaction block. Closes #9036 *jacobat, Marcel Molina Jr.*
1361
1362 * Update Schema documentation to use updated sexy migration notation. Closes #10086 *Sam Granieri*
1363
1364 * Make fixtures work with the new test subclasses. *Tarmo Tänav, Michael Koziarski*
1365
1366 * Introduce finder :joins with associations. Same :include syntax but with inner rather than outer joins. #10012 *RubyRedRick*
1367 # Find users with an avatar
1368 User.find(:all, :joins => :avatar)
1369
1370 # Find posts with a high-rated comment.
1371 Post.find(:all, :joins => :comments, :conditions => 'comments.rating > 3')
1372
1373 * Associations: speedup duplicate record check. #10011 *Pratik Naik*
1374
1375 * Make sure that << works on has_many associations on unsaved records. Closes #9989 *Josh Susser*
1376
1377 * Allow association redefinition in subclasses. #9346 *wildchild*
1378
1379 * Fix has_many :through delete with custom foreign keys. #6466 *naffis*
1380
1381 * Foxy fixtures, from rathole (http://svn.geeksomnia.com/rathole/trunk/README)
1382 - stable, autogenerated IDs
1383 - specify associations (belongs_to, has_one, has_many) by label, not ID
1384 - specify HABTM associations as inline lists
1385 - autofill timestamp columns
1386 - support YAML defaults
1387 - fixture label interpolation
1388 Enabled for fixtures that correspond to a model class and don't specify a primary key value. #9981 *John Barnette*
1389
1390 * Add docs explaining how to protect all attributes using attr_accessible with no arguments. Closes #9631 *boone, rmm5t*
1391
1392 * Update add_index documentation to use new options api. Closes #9787 *Kamal Fariz Mahyuddin*
1393
1394 * Allow find on a has_many association defined with :finder_sql to accept id arguments as strings like regular find does. Closes #9916 *krishna*
1395
1396 * Use VALID_FIND_OPTIONS when resolving :find scoping rather than hard coding the list of valid find options. Closes #9443 *sur*
1397
1398 * Limited eager loading no longer ignores scoped :order. Closes #9561 *Jack Danger Canty, Josh Peek*
1399
1400 * 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*
1401
1402 * Assigning nil to a composed_of aggregate also sets its immediate value to nil. #9843 *Chris Cruft*
1403
1404 * Ensure that mysql quotes table names with database names correctly. Closes #9911 *crayz*
1405
1406 "foo.bar" => "`foo`.`bar`"
1407
1408 * Complete the assimilation of Sexy Migrations from ErrFree *Chris Wanstrath, PJ Hyett*
1409 http://errtheblog.com/post/2381
1410
1411 * Qualified column names work in hash conditions, like :conditions => { 'comments.created_at' => ... }. #9733 *Jack Danger Canty*
1412
1413 * 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*
1414
1415 * Refactor association create and build so before & after callbacks behave consistently. #8854 *Pratik Naik, mortent*
1416
1417 * Quote table names. Defaults to column quoting. #4593 *Justin Lynn, gwcoffey, eadz, Dmitry V. Sabanin, Jeremy Kemper*
1418
1419 * Alias association #build to #new so it behaves predictably. #8787 *Pratik Naik*
1420
1421 * Add notes to documentation regarding attr_readonly behavior with counter caches and polymorphic associations. Closes #9835 *saimonmoore, Rick Olson*
1422
1423 * Observers can observe model names as symbols properly now. Closes #9869 *queso*
1424
1425 * find_and_(initialize|create)_by methods can now properly initialize protected attributes *Tobias Lütke*
1426
1427 * belongs_to infers the foreign key from the association name instead of from the class name. *Jeremy Kemper*
1428
1429 * PostgreSQL: support multiline default values. #7533 *Carl Lerche, aguynamedryan, Rein Henrichs, Tarmo Tänav*
1430
1431 * MySQL: fix change_column on not-null columns that don't accept dfeault values of ''. #6663 *Jonathan Viney, Tarmo Tänav*
1432
1433 * validates_uniqueness_of behaves well with abstract superclasses and
1434 single-table inheritance. #3833, #9886 [Gabriel Gironda, rramdas, François Beausoleil, Josh Peek, Tarmo Tänav, pat]
1435 * Warn about protected attribute assigments in development and test environments when mass-assigning to an attr_protected attribute. #9802 *Henrik N*
1436
1437 * Speedup database date/time parsing. *Jeremy Kemper, Tarmo Tänav*
1438
1439 * Fix calling .clear on a has_many :dependent=>:delete_all association. *Tarmo Tänav*
1440
1441 * Allow change_column to set NOT NULL in the PostgreSQL adapter *Tarmo Tänav*
1442
1443 * Fix that ActiveRecord would create attribute methods and override custom attribute getters if the method is also defined in Kernel.methods. *Rick Olson*
1444
1445 * 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*
1446
1447 * 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*
1448
1449
1450 ## 2.0.0 Preview Release (September 29th, 2007) Includes duplicates of changes from 1.14.2 - 1.15.3 ##
1451
1452 * Add attr_readonly to specify columns that are skipped during a normal ActiveRecord #save operation. Closes #6896 *Dan Manges*
1453
1454 class Comment < ActiveRecord::Base
1455 # Automatically sets Article#comments_count as readonly.
1456 belongs_to :article, :counter_cache => :comments_count
1457 end
1458
1459 class Article < ActiveRecord::Base
1460 attr_readonly :approved_comments_count
1461 end
1462
1463 * Make size for has_many :through use counter cache if it exists. Closes #9734 *Xavier Shay*
1464
1465 * Remove DB2 adapter since IBM chooses to maintain their own adapter instead. *Jeremy Kemper*
1466
1467 * Extract Oracle, SQLServer, and Sybase adapters into gems. *Jeremy Kemper*
1468
1469 * Added fixture caching that'll speed up a normal fixture-powered test suite between 50% and 100% #9682 *Frederick Cheung*
1470
1471 * Correctly quote id list for limited eager loading. #7482 *tmacedo*
1472
1473 * Fixed that using version-targetted migrates would fail on loggers other than the default one #7430 *valeksenko*
1474
1475 * Fixed rename_column for SQLite when using symbols for the column names #8616 *drodriguez*
1476
1477 * Added the possibility of using symbols in addition to concrete classes with ActiveRecord::Observer#observe. #3998 *Robby Russell, Tarmo Tänav*
1478
1479 * Added ActiveRecord::Base#to_json/from_json *David Heinemeier Hansson, Cheah Chu Yeow*
1480
1481 * Added ActiveRecord::Base#from_xml [David Heinemeier Hansson]. Example:
1482
1483 xml = "<person><name>David</name></person>"
1484 Person.new.from_xml(xml).name # => "David"
1485
1486 * Define dynamic finders as real methods after first usage. *bscofield*
1487
1488 * Deprecation: remove deprecated threaded_connections methods. Use allow_concurrency instead. *Jeremy Kemper*
1489
1490 * Associations macros accept extension blocks alongside modules. #9346 *Josh Peek*
1491
1492 * Speed up and simplify query caching. *Jeremy Kemper*
1493
1494 * connection.select_rows 'sql' returns an array (rows) of arrays (field values). #2329 *Michael Schuerig*
1495
1496 * Eager loading respects explicit :joins. #9496 *dasil003*
1497
1498 * Extract Firebird, FrontBase, and OpenBase adapters into gems. #9508, #9509, #9510 *Jeremy Kemper*
1499
1500 * RubyGem database adapters: expects a gem named activerecord-<database>-adapter with active_record/connection_adapters/<database>_adapter.rb in its load path. *Jeremy Kemper*
1501
1502 * Fixed that altering join tables in migrations would fail w/ sqlite3 #7453 *TimoMihaljov/brandon*
1503
1504 * Fix association writer with :dependent => :nullify. #7314 *Jonathan Viney*
1505
1506 * OpenBase: update for new lib and latest Rails. Support migrations. #8748 *dcsesq*
1507
1508 * Moved acts_as_tree into a plugin of the same name on the official Rails svn. #9514 *Pratik Naik*
1509
1510 * Moved acts_as_nested_set into a plugin of the same name on the official Rails svn. #9516 *Josh Peek*
1511
1512 * Moved acts_as_list into a plugin of the same name on the official Rails svn. *Josh Peek*
1513
1514 * Explicitly require active_record/query_cache before using it. *Jeremy Kemper*
1515
1516 * Fix bug where unserializing an attribute attempts to modify a frozen @attributes hash for a deleted record. *Rick Olson, marclove*
1517
1518 * Performance: absorb instantiate and initialize_with_callbacks into the Base methods. *Jeremy Kemper*
1519
1520 * Fixed that eager loading queries and with_scope should respect the :group option *David Heinemeier Hansson*
1521
1522 * Improve performance and functionality of the postgresql adapter. Closes #8049 *roderickvd*
1523
1524 For more information see: http://dev.rubyonrails.org/ticket/8049
1525
1526 * Don't clobber includes passed to has_many.count *Jack Danger Canty*
1527
1528 * Make sure has_many uses :include when counting *Jack Danger Canty*
1529
1530 * Change the implementation of ActiveRecord's attribute reader and writer methods *Michael Koziarski*
1531 - 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.
1532 * Perform a deep #dup on query cache results so that modifying activerecord attributes does not modify the cached attributes. *Rick Olson*
1533
1534 \# Ensure that has_many :through associations use a count query instead of loading the target when #size is called. Closes #8800 [Pratik Naik]
1535 * Added :unless clause to validations #8003 [monki]. Example:
1536
1537 def using_open_id?
1538 !identity_url.blank?
1539 end
1540
1541 validates_presence_of :identity_url, :if => using_open_id?
1542 validates_presence_of :username, :unless => using_open_id?
1543 validates_presence_of :password, :unless => using_open_id?
1544
1545 * Fix #count on a has_many :through association so that it recognizes the :uniq option. Closes #8801 *Pratik Naik*
1546
1547 * Fix and properly document/test count(column_name) usage. Closes #8999 *Pratik Naik*
1548
1549 * Remove deprecated count(conditions=nil, joins=nil) usage. Closes #8993 *Pratik Naik*
1550
1551 * Change belongs_to so that the foreign_key assumption is taken from the association name, not the class name. Closes #8992 *Josh Susser*
1552
1553 OLD
1554 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is user_id
1555
1556 NEW
1557 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is visitor_id
1558
1559 * Remove spurious tests from deprecated_associations_test, most of these aren't deprecated, and are duplicated in associations_test. Closes #8987 *Pratik Naik*
1560
1561 * Make create! on a has_many :through association return the association object. Not the collection. Closes #8786 *Pratik Naik*
1562
1563 * Move from select * to select tablename.* to avoid clobbering IDs. Closes #8889 *dasil003*
1564
1565 * Don't call unsupported methods on associated objects when using :include, :method with to_xml #7307, *Manfred Stienstra, jwilger*
1566
1567 * Define collection singular ids method for has_many :through associations. #8763 *Pratik Naik*
1568
1569 * Array attribute conditions work with proxied association collections. #8318 *Kamal Fariz Mahyuddin, theamazingrando*
1570
1571 * Fix polymorphic has_one associations declared in an abstract class. #8638 *Pratik Naik, Dax Huiberts*
1572
1573 * Fixed validates_associated should not stop on the first error. #4276 *mrj, Manfred Stienstra, Josh Peek*
1574
1575 * Rollback if commit raises an exception. #8642 *kik, Jeremy Kemper*
1576
1577 * Update tests' use of fixtures for the new collections api. #8726 *Kamal Fariz Mahyuddin*
1578
1579 * Save associated records only if the association is already loaded. #8713 *Blaine*
1580
1581 * MySQL: fix show_variable. #8448 *matt, Jeremy Kemper*
1582
1583 * Fixtures: correctly delete and insert fixtures in a single transaction. #8553 *Michael Schuerig*
1584
1585 * Fixtures: people(:technomancy, :josh) returns both fixtures. #7880 *technomancy, Josh Peek*
1586
1587 * Calculations support non-numeric foreign keys. #8154 *Kamal Fariz Mahyuddin*
1588
1589 * with_scope is protected. #8524 *Josh Peek*
1590
1591 * Quickref for association methods. #7723 *marclove, Mindsweeper*
1592
1593 * Calculations: return nil average instead of 0 when there are no rows to average. #8298 *davidw*
1594
1595 * acts_as_nested_set: direct_children is sorted correctly. #4761 *Josh Peek, rails@33lc0.net*
1596
1597 * Raise an exception if both attr_protected and attr_accessible are declared. #8507 *stellsmi*
1598
1599 * SQLite, MySQL, PostgreSQL, Oracle: quote column names in column migration SQL statements. #8466 *marclove, lorenjohnson*
1600
1601 * Allow nil serialized attributes with a set class constraint. #7293 *sandofsky*
1602
1603 * Oracle: support binary fixtures. #7987 *Michael Schoen*
1604
1605 * Fixtures: pull fixture insertion into the database adapters. #7987 *Michael Schoen*
1606
1607 * Announce migration versions as they're performed. *Jeremy Kemper*
1608
1609 * find gracefully copes with blank :conditions. #7599 *Dan Manges, johnnyb*
1610
1611 * 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*
1612
1613 * MySQL: create_database takes :charset and :collation options. Charset defaults to utf8. #8448 *matt*
1614
1615 * Find with a list of ids supports limit/offset. #8437 *hrudududu*
1616
1617 * Optimistic locking: revert the lock version when an update fails. #7840 *plang*
1618
1619 * Migrations: add_column supports custom column types. #7742 *jsgarvin, Theory*
1620
1621 * 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*
1622
1623 * Ensure that associations with :dependent => :delete_all respect :conditions option. Closes #8034 *Jack Danger Canty, Josh Peek, Rick Olson*
1624
1625 * belongs_to assignment creates a new proxy rather than modifying its target in-place. #8412 *mmangino@elevatedrails.com*
1626
1627 * Fix column type detection while loading fixtures. Closes #7987 *roderickvd*
1628
1629 * Document deep eager includes. #6267 *Josh Susser, Dan Manges*
1630
1631 * Document warning that associations names shouldn't be reserved words. #4378 *murphy@cYcnus.de, Josh Susser*
1632
1633 * Sanitize Base#inspect. #8392, #8623 *Nik Wakelin, jnoon*
1634
1635 * Replace the transaction {|transaction|..} semantics with a new Exception ActiveRecord::Rollback. *Michael Koziarski*
1636
1637 * Oracle: extract column length for CHAR also. #7866 *ymendel*
1638
1639 * Document :allow_nil option for validates_acceptance_of since it defaults to true. *tzaharia*
1640
1641 * Update documentation for :dependent declaration so that it explicitly uses the non-deprecated API. *Jack Danger Canty*
1642
1643 * Add documentation caveat about when to use count_by_sql. *fearoffish*
1644
1645 * Enhance documentation for increment_counter and decrement_counter. *fearoffish*
1646
1647 * Provide brief introduction to what optimistic locking is. *fearoffish*
1648
1649 * Add documentation for :encoding option to mysql adapter. *marclove*
1650
1651 * Added short-hand declaration style to migrations (inspiration from Sexy Migrations, http://errtheblog.com/post/2381) [David Heinemeier Hansson]. Example:
1652
1653 create_table "products" do |t|
1654 t.column "shop_id", :integer
1655 t.column "creator_id", :integer
1656 t.column "name", :string, :default => "Untitled"
1657 t.column "value", :string, :default => "Untitled"
1658 t.column "created_at", :datetime
1659 t.column "updated_at", :datetime
1660 end
1661
1662 ...can now be written as:
1663
1664 create_table :products do |t|
1665 t.integer :shop_id, :creator_id
1666 t.string :name, :value, :default => "Untitled"
1667 t.timestamps
1668 end
1669
1670 * 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*
1671
1672 * Improve performance of calling .create on has_many :through associations. *evan*
1673
1674 * Improved cloning performance by relying less on exception raising #8159 *Blaine*
1675
1676 * Added ActiveRecord::Base.inspect to return a column-view like #<Post id:integer, title:string, body:text> *David Heinemeier Hansson*
1677
1678 * Added yielding of Builder instance for ActiveRecord::Base#to_xml calls *David Heinemeier Hansson*
1679
1680 * Small additions and fixes for ActiveRecord documentation. Closes #7342 *Jeremy McAnally*
1681
1682 * Add helpful debugging info to the ActiveRecord::StatementInvalid exception in ActiveRecord::ConnectionAdapters::SqliteAdapter#table_structure. Closes #7925. *court3nay*
1683
1684 * SQLite: binary escaping works with $KCODE='u'. #7862 *tsuka*
1685
1686 * Base#to_xml supports serialized attributes. #7502 *jonathan*
1687
1688 * Base.update_all :order and :limit options. Useful for MySQL updates that must be ordered to avoid violating unique constraints. *Jeremy Kemper*
1689
1690 * 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*
1691
1692 * 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*
1693
1694 * 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*
1695
1696 * 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*
1697
1698 * Allow a polymorphic :source for has_many :through associations. Closes #7143 *protocool*
1699
1700 * Consistent public/protected/private visibility for chained methods. #7813 *Dan Manges*
1701
1702 * Oracle: fix quoted primary keys and datetime overflow. #7798 *Michael Schoen*
1703
1704 * Consistently quote primary key column names. #7763 *toolmantim*
1705
1706 * Fixtures: fix YAML ordered map support. #2665 *Manuel Holtgrewe, nfbuckley*
1707
1708 * DateTimes assume the default timezone. #7764 *Geoff Buesing*
1709
1710 * Sybase: hide timestamp columns since they're inherently read-only. #7716 *Mike Joyce*
1711
1712 * Oracle: overflow Time to DateTime. #7718 *Michael Schoen*
1713
1714 * PostgreSQL: don't use async_exec and async_query with postgres-pr. #7727, #7762 *flowdelic, toolmantim*
1715
1716 * Fix has_many :through << with custom foreign keys. #6466, #7153 *naffis, Rich Collins*
1717
1718 * Test DateTime native type in migrations, including an edge case with dates
1719 during calendar reform. #7649, #7724 [fedot, Geoff Buesing]
1720 * SQLServer: correctly schema-dump tables with no indexes or descending indexes. #7333, #7703 *Jakob Skjerning, Tom Ward*
1721
1722 * SQLServer: recognize real column type as Ruby float. #7057 *sethladd, Tom Ward*
1723
1724 * Added fixtures :all as a way of loading all fixtures in the fixture directory at once #7214 *Manfred Stienstra*
1725
1726 * Added database connection as a yield parameter to ActiveRecord::Base.transaction so you can manually rollback [David Heinemeier Hansson]. Example:
1727
1728 transaction do |transaction|
1729 david.withdrawal(100)
1730 mary.deposit(100)
1731 transaction.rollback! # rolls back the transaction that was otherwise going to be successful
1732 end
1733
1734 * Made increment_counter/decrement_counter play nicely with optimistic locking, and added a more general update_counters method *Jamis Buck*
1735
1736 * 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*
1737 Task.cache { Task.find(1); Task.find(1) } # => 1 query
1738
1739 * 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*
1740
1741 * Oracle: fix lob and text default handling. #7344 *gfriedrich, Michael Schoen*
1742
1743 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
1744
1745 * MySQL: blob and text columns may not have defaults in 5.x. Update fixtures schema for strict mode. #6695 *Dan Kubb*
1746
1747 * 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*
1748
1749 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
1750
1751 * Use Date#to_s(:db) for quoted dates. #7411 *Michael Schoen*
1752
1753 * Don't create instance writer methods for class attributes. Closes #7401 *Rick Olson*
1754
1755 * Docs: validations examples. #7343 *zackchandler*
1756
1757 * Add missing tests ensuring callbacks work with class inheritance. Closes #7339 *sandofsky*
1758
1759 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
1760
1761 * Remove useless code in #attribute_present? since 0 != blank?. Closes #7249 *Josh Susser*
1762
1763 * Fix minor doc typos. Closes #7157 *Josh Susser*
1764
1765 * Fix incorrect usage of #classify when creating the eager loading join statement. Closes #7044 *Josh Susser*
1766
1767 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
1768
1769 * Subclasses of an abstract class work with single-table inheritance. #5704, #7284 *BertG, nick+rails@ag.arizona.edu*
1770
1771 * Make sure sqlite3 driver closes open connections on disconnect *Rob Rasmussen*
1772
1773 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
1774
1775 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
1776
1777 * 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*
1778
1779 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
1780
1781 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
1782
1783 * Apply scoping during initialize instead of create. Fixes setting of foreign key when using find_or_initialize_by with scoping. *Cody Fauser*
1784
1785 * SQLServer: handle [quoted] table names. #6635 *rrich*
1786
1787 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
1788
1789 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
1790
1791 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
1792 Student.find(:all, :conditions => { :grade => 9..12 })
1793
1794 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
1795
1796 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
1797
1798 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
1799
1800 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
1801
1802 * Rollback new_record? and id when an exception is raised in a save callback. #6910 *Ben Curren, outerim*
1803
1804 * Pushing a record on an association collection doesn't unnecessarily load all the associated records. *Obie Fernandez, Jeremy Kemper*
1805
1806 * Oracle: fix connection reset failure. #6846 *leonlleslie*
1807
1808 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
1809
1810 * 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*
1811
1812 * 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*
1813
1814 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
1815
1816 * Add AssociationCollection#create! to be consistent with AssociationCollection#create when dealing with a foreign key that is a protected attribute *Cody Fauser*
1817
1818 * 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*
1819
1820 * Change fixture_path to a class inheritable accessor allowing test cases to have their own custom set of fixtures. #6672 *Zach Dennis*
1821
1822 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
1823
1824 * Simplify query_attribute by typecasting the attribute value and checking whether it's nil, false, zero or blank. #6659 *Jonathan Viney*
1825
1826 * 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*
1827
1828 * Run validations in the order they were declared. #6657 *obrie*
1829
1830 * 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*
1831
1832 * Simplify association proxy implementation by factoring construct_scope out of method_missing. #6643 *martin*
1833
1834 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
1835
1836 * 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*
1837
1838 * Don't inspect unloaded associations. #2905 *lmarlow*
1839
1840 * SQLite: use AUTOINCREMENT primary key in >= 3.1.0. #6588, #6616 *careo, lukfugl*
1841
1842 * Cache inheritance_column. #6592 *Stefan Kaes*
1843
1844 * Firebird: decimal/numeric support. #6408 *macrnic*
1845
1846 * make add_order a tad faster. #6567 *Stefan Kaes*
1847
1848 * Find with :include respects scoped :order. #5850
1849
1850 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
1851 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
1852
1853 * 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*
1854
1855 * SQLite: fix calculations workaround, remove count(distinct) query rewrite, cleanup test connection scripts. *Jeremy Kemper*
1856
1857 * SQLite: count(distinct) queries supported in >= 3.2.6. #6544 *Bob Silva*
1858
1859 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
1860
1861 * Deprecation: object transactions warning. *Jeremy Kemper*
1862
1863 * has_one :dependent => :nullify ignores nil associates. #4848, #6528 *bellis@deepthought.org, janovetz, Jeremy Kemper*
1864
1865 * 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*
1866
1867 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
1868
1869 * Document other options available to migration's add_column. #6419 *grg*
1870
1871 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
1872
1873 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
1874
1875 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
1876
1877 * Restore eager condition interpolation, document it's differences *Rick Olson*
1878
1879 * 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*
1880
1881 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
1882
1883 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
1884
1885 * 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*
1886
1887 * 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*
1888
1889 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
1890
1891 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
1892
1893 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
1894
1895 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
1896
1897 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
1898
1899 * 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*
1900
1901 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
1902
1903 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
1904
1905 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
1906
1907 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
1908
1909 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
1910
1911 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
1912
1913 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
1914
1915 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
1916
1917 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
1918
1919 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
1920
1921 * 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*
1922
1923 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
1924
1925 * Document validates_presences_of behavior with booleans: you probably want validates_inclusion_of :attr, :in => [true, false]. #2253 *Bob Silva*
1926
1927 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
1928
1929 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
1930
1931 * Deprecation: update docs. #5998 *Jakob Skjerning, Kevin Clark*
1932
1933 * Add some XmlSerialization tests for ActiveRecord *Rick Olson*
1934
1935 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
1936
1937 * Tighten rescue clauses. #5985 *james@grayproductions.net*
1938
1939 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
1940
1941 * 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*
1942
1943 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
1944
1945 * 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*
1946
1947 * SQLServer: fix eager association test. #5901 *Tom Ward*
1948
1949 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
1950
1951 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
1952
1953 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
1954
1955 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
1956
1957 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
1958
1959 * 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*
1960
1961 * 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*
1962
1963 # Create a tagging to associate the post and tag.
1964 post.tags << Tag.find_by_name('old')
1965 post.tags.create! :name => 'general'
1966
1967 # Would have been:
1968 post.taggings.create!(:tag => Tag.find_by_name('finally')
1969 transaction do
1970 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
1971 end
1972
1973 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
1974
1975 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
1976
1977 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
1978 Example: Invoice::Lineitem is given table name invoice_lineitems
1979
1980 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
1981 # people_active_last_name_index, people_active_deactivated_at_index
1982 add_index :people, [:active, :last_name]
1983 add_index :people, [:active, :deactivated_at]
1984 remove_index :people, [:active, :last_name]
1985 remove_index :people, [:active, :deactivated_at]
1986
1987 WARNING: backward-incompatibility. Multicolumn indexes created before this
1988 revision were named using the first column name only. Now they're uniquely
1989 named using all indexed columns.
1990
1991 To remove an old multicolumn index, remove_index :table_name, :first_column
1992
1993 * Fix for deep includes on the same association. *richcollins@gmail.com*
1994
1995 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
1996
1997 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
1998
1999 * Document find's :from option. Closes #5762. *andrew@redlinesoftware.com*
2000
2001 * 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*
2002
2003 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2004
2005 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2006
2007 * Add documentation for how to disable timestamps on a per model basis. Closes #5684. *matt@mattmargolis.net Marcel Molina Jr.*
2008
2009 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2010
2011 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2012
2013 * Formally deprecate the deprecated finders. *Michael Koziarski*
2014
2015 * Formally deprecate rich associations. *Michael Koziarski*
2016
2017 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2018
2019 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2020
2021 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2022
2023 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2024
2025 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2026
2027 assert (Topic.exists?(:author_name => "David"))
2028 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2029 assert (Topic.exists?(["parent_id = ?", 1]))
2030
2031 * Schema dumper quotes date :default values. *Dave Thomas*
2032
2033 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2034
2035 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2036
2037 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2038
2039 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2040
2041 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2042
2043 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2044
2045 * 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*
2046
2047 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2048
2049 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2050
2051 * 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*
2052
2053 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2054
2055 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2056
2057 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
2058
2059 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2060
2061 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2062
2063 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2064
2065 * 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*
2066
2067 * 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*
2068
2069 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2070
2071 * Minor tweak to improve performance of ActiveRecord::Base#to_param.
2072
2073 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2074
2075 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2076
2077 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2078
2079 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2080
2081 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2082
2083 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2084
2085 * 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*
2086 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2087 Person.transaction do
2088 # select * from people where id=1 for update
2089 person = Person.find(1, :lock => true)
2090 person.visits += 1
2091 person.save!
2092 end
2093
2094 * 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*
2095
2096 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2097
2098 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2099
2100 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2101
2102 * 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*
2103
2104 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2105
2106 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2107
2108 ...is the same as:
2109 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2110
2111 This makes it easier to pass in the options from a form or otherwise outside.
2112
2113
2114 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2115
2116 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2117
2118 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2119
2120 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2121
2122 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2123
2124 * 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*
2125
2126 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2127
2128 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2129
2130 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2131 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2132 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2133
2134 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2135
2136 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2137
2138 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2139
2140 * Provide Association Extensions access to the instance that the association is being accessed from.
2141 Closes #4433 *Josh Susser*
2142
2143 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2144
2145 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2146
2147 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2148
2149 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2150
2151 * Added :allow_nil option for aggregations #5091 *Ian White*
2152
2153 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2154
2155 * 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*
2156
2157 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2158
2159 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2160
2161 * 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*
2162
2163 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2164
2165 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2166
2167 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2168
2169 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2170
2171 * Replace superfluous name_to_class_name variant with camelize. *Marcel Molina Jr.*
2172
2173 * Replace alias method chaining with Module#alias_method_chain. *Marcel Molina Jr.*
2174
2175 * Replace Ruby's deprecated append_features in favor of included. *Marcel Molina Jr.*
2176
2177 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2178
2179 * Update FrontBase adapter to check binding version. Closes #4920. *mlaster@metavillage.com*
2180
2181 * New Frontbase connections don't start in auto-commit mode. Closes #4922. *mlaster@metavillage.com*
2182
2183 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2184
2185 * Only modify the sequence name in the FrontBase adapter if the FrontBase adapter is actually being used. *Marcel Molina Jr.*
2186
2187 * 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*
2188
2189 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2190
2191 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2192
2193 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2194
2195 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2196
2197 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2198
2199 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2200
2201 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2202
2203 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2204
2205 * Fix bug where calculations with long alias names return null. *Rick Olson*
2206
2207 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2208
2209 @post.tags << @tag # BAD
2210 @post.taggings.create(:tag => @tag) # GOOD
2211
2212 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2213
2214 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2215
2216 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2217
2218 * Properly quote index names in migrations (closes #4764) *John Long*
2219
2220 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2221
2222 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2223
2224 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2225
2226 * DRY up association collection reader method generation. *Marcel Molina Jr.*
2227
2228 * DRY up and tweak style of the validation error object. *Marcel Molina Jr.*
2229
2230 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2231
2232 class Account < ActiveRecord::Base
2233 validates_uniqueness_of :email, :case_sensitive => false
2234 end
2235
2236 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2237
2238 class Account < ActiveRecord::Base
2239 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2240 end
2241
2242 *1.15.3* (March 12th, 2007)
2243
2244 * Allow a polymorphic :source for has_many :through associations. Closes #7143 [protocool]
2245
2246 * Consistently quote primary key column names. #7763 [toolmantim]
2247
2248 * Fixtures: fix YAML ordered map support. #2665 [Manuel Holtgrewe, nfbuckley]
2249
2250 * Fix has_many :through << with custom foreign keys. #6466, #7153 [naffis, Rich Collins]
2251
2252
2253 ## 1.15.2 (February 5th, 2007) ##
2254
2255 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
2256 Student.find(:all, :conditions => { :grade => 9..12 })
2257
2258 * Don't create instance writer methods for class attributes. *Rick Olson*
2259
2260 * 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*
2261
2262 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
2263
2264 * 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*
2265
2266 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
2267
2268 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
2269
2270 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
2271
2272
2273 ## 1.15.1 (January 17th, 2007) ##
2274
2275 * Fix nodoc breaking of adapters
2276
2277
2278 ## 1.15.0 (January 16th, 2007) ##
2279
2280 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
2281
2282 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
2283
2284 * 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*
2285
2286 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
2287
2288 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
2289
2290 * SQLServer: handle [quoted] table names. #6635 *rrich*
2291
2292 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
2293
2294 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
2295
2296 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
2297
2298 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
2299
2300 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
2301
2302 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
2303
2304 * Oracle: fix connection reset failure. #6846 *leonlleslie*
2305
2306 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
2307
2308 * 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*
2309
2310 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
2311
2312 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
2313 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
2314
2315 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
2316
2317 * 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*
2318
2319 * 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*
2320
2321 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
2322
2323 * 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*
2324
2325 * Firebird: decimal/numeric support. #6408 *macrnic*
2326
2327 * Find with :include respects scoped :order. #5850
2328
2329 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
2330
2331 * Deprecation: object transactions warning. *Jeremy Kemper*
2332
2333 * has_one :dependent => :nullify ignores nil associates. #6528 *janovetz, Jeremy Kemper*
2334
2335 * 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*
2336
2337 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
2338
2339 * Document other options available to migration's add_column. #6419 *grg*
2340
2341 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
2342
2343 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
2344
2345 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
2346
2347 * Restore eager condition interpolation, document it's differences *Rick Olson*
2348
2349 * 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*
2350
2351 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
2352
2353 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
2354
2355 * 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*
2356
2357 * 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*
2358
2359 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
2360
2361 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
2362
2363 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
2364
2365 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
2366
2367 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
2368
2369 * 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*
2370
2371 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
2372
2373 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
2374
2375 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
2376
2377 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
2378
2379 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
2380
2381 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
2382
2383 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
2384
2385 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
2386
2387 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
2388
2389 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
2390
2391 * 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*
2392
2393 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
2394
2395 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
2396
2397 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
2398
2399 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
2400
2401 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
2402
2403 * 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*
2404
2405 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
2406
2407 * 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*
2408
2409 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
2410
2411 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
2412
2413 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
2414
2415 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
2416
2417 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
2418
2419 * 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*
2420
2421 * 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*
2422
2423 # Create a tagging to associate the post and tag.
2424 post.tags << Tag.find_by_name('old')
2425 post.tags.create! :name => 'general'
2426
2427 # Would have been:
2428 post.taggings.create!(:tag => Tag.find_by_name('finally')
2429 transaction do
2430 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
2431 end
2432
2433 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
2434
2435 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
2436
2437 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
2438 Example: Invoice::Lineitem is given table name invoice_lineitems
2439
2440 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
2441 # people_active_last_name_index, people_active_deactivated_at_index
2442 add_index :people, [:active, :last_name]
2443 add_index :people, [:active, :deactivated_at]
2444 remove_index :people, [:active, :last_name]
2445 remove_index :people, [:active, :deactivated_at]
2446
2447 WARNING: backward-incompatibility. Multicolumn indexes created before this
2448 revision were named using the first column name only. Now they're uniquely
2449 named using all indexed columns.
2450
2451 To remove an old multicolumn index, remove_index :table_name, :first_column
2452
2453 * Fix for deep includes on the same association. *richcollins@gmail.com*
2454
2455 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
2456
2457 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
2458
2459 * 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*
2460
2461 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2462
2463 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2464
2465 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2466
2467 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2468
2469 * Formally deprecate the deprecated finders. *Michael Koziarski*
2470
2471 * Formally deprecate rich associations. *Michael Koziarski*
2472
2473 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2474
2475 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2476
2477 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2478
2479 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2480
2481 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2482
2483 assert (Topic.exists?(:author_name => "David"))
2484 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2485 assert (Topic.exists?(["parent_id = ?", 1]))
2486
2487 * Schema dumper quotes date :default values. *Dave Thomas*
2488
2489 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2490
2491 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2492
2493 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2494
2495 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2496
2497 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2498
2499 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2500
2501 * 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*
2502
2503 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2504
2505 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2506
2507 * 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*
2508
2509 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2510
2511 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2512
2513 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2514
2515 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2516
2517 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2518
2519 * 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*
2520
2521 * 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*
2522
2523 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2524
2525 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2526
2527 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2528
2529 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2530
2531 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2532
2533 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2534
2535 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2536
2537 * 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*
2538 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2539 Person.transaction do
2540 # select * from people where id=1 for update
2541 person = Person.find(1, :lock => true)
2542 person.visits += 1
2543 person.save!
2544 end
2545
2546 * 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*
2547
2548 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2549
2550 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2551
2552 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2553
2554 * 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*
2555
2556 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2557
2558 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2559
2560 ...is the same as:
2561 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2562
2563 This makes it easier to pass in the options from a form or otherwise outside.
2564
2565
2566 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2567
2568 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2569
2570 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2571
2572 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2573
2574 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2575
2576 * 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*
2577
2578 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2579
2580 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2581
2582 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2583 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2584 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2585
2586 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2587
2588 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2589
2590 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2591
2592 * Provide Association Extensions access to the instance that the association is being accessed from.
2593 Closes #4433 *Josh Susser*
2594
2595 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2596
2597 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2598
2599 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2600
2601 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2602
2603 * Added :allow_nil option for aggregations #5091 *Ian White*
2604
2605 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2606
2607 * 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*
2608
2609 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2610
2611 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2612
2613 * 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*
2614
2615 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2616
2617 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2618
2619 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2620
2621 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2622
2623 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2624
2625 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2626
2627 * 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*
2628
2629 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2630
2631 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2632
2633 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2634
2635 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2636
2637 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2638
2639 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2640
2641 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2642
2643 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2644
2645 * Fix bug where calculations with long alias names return null. *Rick Olson*
2646
2647 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2648
2649 @post.tags << @tag # BAD
2650 @post.taggings.create(:tag => @tag) # GOOD
2651
2652 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2653
2654 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2655
2656 * Properly quote index names in migrations (closes #4764) *John Long*
2657
2658 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2659
2660 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2661
2662 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2663
2664 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2665
2666 class Account < ActiveRecord::Base
2667 validates_uniqueness_of :email, :case_sensitive => false
2668 end
2669
2670 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2671
2672 class Account < ActiveRecord::Base
2673 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2674 end
2675
2676
2677 ## 1.14.4 (August 8th, 2006) ##
2678
2679 * Add warning about the proper way to validate the presence of a foreign key. #4147 *Francois Beausoleil <francois.beausoleil@gmail.com>*
2680
2681 * Fix syntax error in documentation. #4679 *Mislav Marohnić*
2682
2683 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2684
2685
2686 ## 1.14.3 (June 27th, 2006) ##
2687
2688 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2689
2690 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
2691
2692 * Properly quote index names in migrations (closes #4764) *John Long*
2693
2694 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2695
2696 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2697
2698
2699 ## 1.14.2 (April 9th, 2006) ##
2700
2701 * Fixed calculations for the Oracle Adapter (closes #4626) *Michael Schoen*
2702
2703
2704 ## 1.14.1 (April 6th, 2006) ##
2705
2706 * Fix type_name_with_module to handle type names that begin with '::'. Closes #4614. *Nicholas Seckar*
2707
2708 * Fixed that that multiparameter assignment doesn't work with aggregations (closes #4620) *Lars Pind*
2709
2710 * Enable Limit/Offset in Calculations (closes #4558) *lmarlow*
2711
2712 * Fixed that loading including associations returns all results if Load IDs For Limited Eager Loading returns none (closes #4528) *Rick Olson*
2713
2714 * Fixed HasManyAssociation#find bugs when :finder_sql is set #4600 *lagroue@free.fr*
2715
2716 * Allow AR::Base#respond_to? to behave when @attributes is nil *Ryan Davis*
2717
2718 * Support eager includes when going through a polymorphic has_many association. *Rick Olson*
2719
2720 * Added support for eagerly including polymorphic has_one associations. (closes #4525) *Rick Olson*
2721
2722 class Post < ActiveRecord::Base
2723 has_one :tagging, :as => :taggable
2724 end
2725
2726 Post.find :all, :include => :tagging
2727
2728 * Added descriptive error messages for invalid has_many :through associations: going through :has_one or :has_and_belongs_to_many *Rick Olson*
2729
2730 * Added support for going through a polymorphic has_many association: (closes #4401) *Rick Olson*
2731
2732 class PhotoCollection < ActiveRecord::Base
2733 has_many :photos, :as => :photographic
2734 belongs_to :firm
2735 end
2736
2737 class Firm < ActiveRecord::Base
2738 has_many :photo_collections
2739 has_many :photos, :through => :photo_collections
2740 end
2741
2742 * Multiple fixes and optimizations in PostgreSQL adapter, allowing ruby-postgres gem to work properly. *ruben.nine@gmail.com*
2743
2744 * Fixed that AssociationCollection#delete_all should work even if the records of the association are not loaded yet. *Florian Weber*
2745
2746 * Changed those private ActiveRecord methods to take optional third argument :auto instead of nil for performance optimizations. (closes #4456) *Stefan*
2747
2748 * Private ActiveRecord methods add_limit!, add_joins!, and add_conditions! take an OPTIONAL third argument 'scope' (closes #4456) *Rick Olson*
2749
2750 * DEPRECATED: Using additional attributes on has_and_belongs_to_many associations. Instead upgrade your association to be a real join model *David Heinemeier Hansson*
2751
2752 * 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*
2753
2754 * 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.*
2755
2756 * Fixed broken OCIAdapter #4457 *Michael Schoen*
2757
2758
2759 ## 1.14.0 (March 27th, 2006) ##
2760
2761 * Replace 'rescue Object' with a finer grained rescue. Closes #4431. *Nicholas Seckar*
2762
2763 * Fixed eager loading so that an aliased table cannot clash with a has_and_belongs_to_many join table *Rick Olson*
2764
2765 * Add support for :include to with_scope *andrew@redlinesoftware.com*
2766
2767 * Support the use of public synonyms with the Oracle adapter; required ruby-oci8 v0.1.14 #4390 *Michael Schoen*
2768
2769 * Change periods (.) in table aliases to _'s. Closes #4251 *jeff@ministrycentered.com*
2770
2771 * Changed has_and_belongs_to_many join to INNER JOIN for Mysql 3.23.x. Closes #4348 *Rick Olson*
2772
2773 * Fixed issue that kept :select options from being scoped *Rick Olson*
2774
2775 * Fixed db_schema_import when binary types are present #3101 *David Heinemeier Hansson*
2776
2777