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281272ad » jonleighton
2011-11-04 Convert CHANGELOGs to Markdown format.
1 ## Rails 3.2.0 (unreleased) ##
2
de24ed9f » fxn
2011-12-03 removes the convenience instance version of AR::Base.silence_auto_exp…
3 * Implements `AR::Base.silence_auto_explain`. This method allows the user to
4 selectively disable automatic EXPLAINs within a block. *fxn*
0be5adae » fxn
2011-12-02 implements AR::Base(.|#)silence_auto_explain
5
0306f82e » fxn
2011-12-02 implements automatic EXPLAIN logging for slow queries
6 * Implements automatic EXPLAIN logging for slow queries.
7
8 A new configuration parameter `config.active_record.auto_explain_threshold_in_seconds`
9 determines what's to be considered a slow query. Setting that to `nil` disables
10 this feature. Defaults are 0.5 in development mode, and `nil` in test and production
11 modes.
12
13 As of this writing there's support for SQLite, MySQL (mysql2 adapter), and
14 PostgreSQL.
15
16 *fxn*
a382d60f » bogdan
2011-11-30 ActiveRecord::Relation#pluck method
17
18 * Implemented ActiveRecord::Relation#pluck method
19
20 Method returns Array of column value from table under ActiveRecord model
21
22 Client.pluck(:id)
23
24 *Bogdan Gusiev*
25
0e2477b6 » tenderlove
2011-11-29 Automatic closure of connections in threads is deprecated. For example
26 * Automatic closure of connections in threads is deprecated. For example
27 the following code is deprecated:
28
29 Thread.new { Post.find(1) }.join
30
31 It should be changed to close the database connection at the end of
32 the thread:
33
34 Thread.new {
35 Post.find(1)
36 Post.connection.close
37 }.join
38
39 Only people who spawn threads in their application code need to worry
40 about this change.
41
34609d67 » jonleighton
2011-11-29 Deprecate set_inheritance_column in favour of self.inheritance_column=
42 * Deprecated:
43
44 * `set_table_name`
45 * `set_inheritance_column`
7af719e8 » jonleighton
2011-11-29 Deprecate set_sequence_name in favour of self.sequence_name=
46 * `set_sequence_name`
1a474cc8 » jonleighton
2011-11-29 Deprecate set_primary_key in favour of self.primary_key=
47 * `set_primary_key`
f3c84dc3 » jonleighton
2011-11-29 Deprecate set_locking_column in favour of self.locking_column=
48 * `set_locking_column`
34609d67 » jonleighton
2011-11-29 Deprecate set_inheritance_column in favour of self.inheritance_column=
49
50 Use an assignment method instead. For example, instead of `set_table_name`, use `self.table_name=`:
0b72a04d » jonleighton
2011-11-29 Deprecate set_table_name in favour of self.table_name= or defining yo…
51
52 class Project < ActiveRecord::Base
53 self.table_name = "project"
54 end
55
34609d67 » jonleighton
2011-11-29 Deprecate set_inheritance_column in favour of self.inheritance_column=
56 Or define your own `self.table_name` method:
57
0b72a04d » jonleighton
2011-11-29 Deprecate set_table_name in favour of self.table_name= or defining yo…
58 class Post < ActiveRecord::Base
59 def self.table_name
60 "special_" + super
61 end
62 end
63 Post.table_name # => "special_posts"
64
65 *Jon Leighton*
66
10834e97 » joshsusser
2011-11-27 changelog & docs for GeneratedFeatureMethods
67 * Generated association methods are created within a separate module to allow overriding and
68 composition using `super`. For a class named `MyModel`, the module is named
69 `MyModel::GeneratedFeatureMethods`. It is included into the model class immediately after
70 the `generated_attributes_methods` module defined in ActiveModel, so association methods
71 override attribute methods of the same name. *Josh Susser*
72
e7b7b441 » fxn
2011-09-20 implements AR::Relation#explain
73 * Implemented ActiveRecord::Relation#explain. *fxn*
74
562583c7 » jonleighton
2011-11-04 Add ActiveRecord::Relation#uniq for toggling DISTINCT in the SQL query
75 * Add ActiveRecord::Relation#uniq for generating unique queries.
76
77 Before:
78
79 Client.select('DISTINCT name')
80
81 After:
82
83 Client.select(:name).uniq
84
85 This also allows you to revert the unqueness in a relation:
86
87 Client.select(:name).uniq.uniq(false)
88
89 *Jon Leighton*
90
69dcd45a » vjebelev
2011-11-04 AR changes to support creating ordered (asc, desc) indexes
91 * Support index sort order in sqlite, mysql and postgres adapters. *Vlad Jebelev*
92
281272ad » jonleighton
2011-11-04 Convert CHANGELOGs to Markdown format.
93 * Allow the :class_name option for associations to take a symbol (:Client) in addition to
94 a string ('Client').
95
96 This is to avoid confusing newbies, and to be consistent with the fact that other options
97 like :foreign_key already allow a symbol or a string.
98
99 *Jon Leighton*
100
101 * In development mode the db:drop task also drops the test database. For symmetry with
102 the db:create task. *Dmitriy Kiriyenko*
103
104 * Added ActiveRecord::Base.store for declaring simple single-column key/value stores *DHH*
105
106 class User < ActiveRecord::Base
107 store :settings, accessors: [ :color, :homepage ]
108 end
109
110 u = User.new(color: 'black', homepage: '37signals.com')
111 u.color # Accessor stored attribute
112 u.settings[:country] = 'Denmark' # Any attribute, even if not specified with an accessor
113
114
115 * MySQL: case-insensitive uniqueness validation avoids calling LOWER when
116 the column already uses a case-insensitive collation. Fixes #561.
117
118 *Joseph Palermo*
119
120 * Transactional fixtures enlist all active database connections. You can test
121 models on different connections without disabling transactional fixtures.
122
123 *Jeremy Kemper*
124
125 * Add first_or_create, first_or_create!, first_or_initialize methods to Active Record. This is a
126 better approach over the old find_or_create_by dynamic methods because it's clearer which
127 arguments are used to find the record and which are used to create it:
128
129 User.where(:first_name => "Scarlett").first_or_create!(:last_name => "Johansson")
130
131 *Andrés Mejía*
132
133 * Fix nested attributes bug where _destroy parameter is taken into account
134 during :reject_if => :all_blank (fixes #2937)
135
136 *Aaron Christy*
137
9c37416a » jonleighton
2011-11-19 Verify that #3690 has been closed by previous changes to the mysql
138 ## Rails 3.1.3 (unreleased) ##
139
fec85cf1 » jonleighton
2011-11-19 Perf fix
140 * Perf fix: If we're deleting all records in an association, don't add a IN(..) clause
141 to the query. *GH 3672*
142
143 *Jon Leighton*
144
9c37416a » jonleighton
2011-11-19 Verify that #3690 has been closed by previous changes to the mysql
145 * Fix bug with referencing other mysql databases in set_table_name. *GH 3690*
146
2ef4947a » jonleighton
2011-11-19 Add missing CHANGELOG entry for #3678. Closes #3678.
147 * Fix performance bug with mysql databases on a server with lots of other databses. *GH 3678*
148
149 *Christos Zisopoulos and Kenny J*
150
281272ad » jonleighton
2011-11-04 Convert CHANGELOGs to Markdown format.
151 ## Rails 3.1.2 (unreleased) ##
152
da02f792 » jonleighton
2011-11-14 Sync CHANGELOGs from 3-1-stable
153 * Fix bug with PostgreSQLAdapter#indexes. When the search path has multiple schemas, spaces
154 were not being stripped from the schema names after the first.
155
156 *Sean Kirby*
157
158 * Preserve SELECT columns on the COUNT for finder_sql when possible. *GH 3503*
159
160 *Justin Mazzi*
161
162 * Reset prepared statement cache when schema changes impact statement results. *GH 3335*
163
164 *Aaron Patterson*
165
166 * Postgres: Do not attempt to deallocate a statement if the connection is no longer active.
167
168 *Ian Leitch*
169
170 * Prevent QueryCache leaking database connections. *GH 3243*
171
172 *Mark J. Titorenko*
173
281272ad » jonleighton
2011-11-04 Convert CHANGELOGs to Markdown format.
174 * Fix bug where building the conditions of a nested through association could potentially
175 modify the conditions of the through and/or source association. If you have experienced
176 bugs with conditions appearing in the wrong queries when using nested through associations,
177 this probably solves your problems. *GH #3271*
178
179 *Jon Leighton*
180
181 * If a record is removed from a has_many :through, all of the join records relating to that
182 record should also be removed from the through association's target.
183
184 *Jon Leighton*
185
186 * Fix adding multiple instances of the same record to a has_many :through. *GH #3425*
187
188 *Jon Leighton*
189
190 * Fix creating records in a through association with a polymorphic source type. *GH #3247*
191
192 *Jon Leighton*
193
fb0bf3c9 » kennyj
2011-10-31 Fixed an issue id false option is ignored on mysql/mysql2 (fix #3440)
194 * MySQL: use the information_schema than the describe command when we look for a primary key. *GH #3440*
195
196 *Kenny J*
197
281272ad » jonleighton
2011-11-04 Convert CHANGELOGs to Markdown format.
198 ## Rails 3.1.1 (October 7, 2011) ##
199
200 * Add deprecation for the preload_associations method. Fixes #3022.
201
202 *Jon Leighton*
203
204 * Don't require a DB connection when loading a model that uses set_primary_key. GH #2807.
205
206 *Jon Leighton*
207
208 * Fix using select() with a habtm association, e.g. Person.friends.select(:name). GH #3030 and
209 \#2923.
210
211 *Hendy Tanata*
212
213 * Fix belongs_to polymorphic with custom primary key on target. GH #3104.
214
215 *Jon Leighton*
216
217 * CollectionProxy#replace should change the DB records rather than just mutating the array.
218 Fixes #3020.
219
220 *Jon Leighton*
221
222 * LRU cache in mysql and sqlite are now per-process caches.
223
224 * lib/active_record/connection_adapters/mysql_adapter.rb: LRU cache keys are per process id.
225 * lib/active_record/connection_adapters/sqlite_adapter.rb: ditto
226 *Aaron Patterson*
227
228 * Support bulk change_table in mysql2 adapter, as well as the mysql one. *Jon Leighton*
229
230 * If multiple parameters are sent representing a date, and some are blank, the
231 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]
232 * ActiveRecord::Base.establish_connection now takes a string that contains
233 a URI that specifies the connection configuration. For example:
234 ActiveRecord::Base.establish_connection 'postgres://localhost/foo'
235
236 * 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.
237
238 So if you were doing this and expecting the second argument to be nil:
239
240 User.find_by_username_and_group("sikachu")
241
242 You'll now get `ArgumentError: wrong number of arguments (1 for 2).` You'll then have to do this:
243
244 User.find_by_username_and_group("sikachu", nil)
245
246 *Prem Sichanugrist*
247
248
249 ## Rails 3.1.0 (August 30, 2011) ##
250
251 * Add a proxy_association method to association proxies, which can be called by association
252 extensions to access information about the association. This replaces proxy_owner etc with
253 proxy_association.owner.
254
255 *Jon Leighton*
256
257 * ActiveRecord::MacroReflection::AssociationReflection#build_record has a new method signature.
258
259 Before: def build_association(*options)
260 After: def build_association(*options, &block)
261
262 Users who are redefining this method to extend functionality should ensure that the block is
263 passed through to ActiveRecord::Base#new.
264
265 This change is necessary to fix https://github.com/rails/rails/issues/1842.
266
267 *Jon Leighton*
268
269 * AR#pluralize_table_names can be used to singularize/pluralize table name of an individual model:
270
271 class User < ActiveRecord::Base
272 self.pluralize_table_names = false
273 end
274
275 Previously this could only be set globally for all models through ActiveRecord::Base.pluralize_table_names. *Guillermo Iguaran*
276
277 * Add block setting of attributes to singular associations:
278
279 class User < ActiveRecord::Base
280 has_one :account
281 end
282
283 user.build_account{ |a| a.credit_limit => 100.0 }
284
285 The block is called after the instance has been initialized. *Andrew White*
286
287 * 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*
288
289 * CSV Fixtures are deprecated and support will be removed in Rails 3.2.0
290
291 * AR#new, AR#create, AR#create!, AR#update_attributes and AR#update_attributes! all accept a second hash as option that allows you
292 to specify which role to consider when assigning attributes. This is built on top of ActiveModel's
293 new mass assignment capabilities:
294
295 class Post < ActiveRecord::Base
296 attr_accessible :title
297 attr_accessible :title, :published_at, :as => :admin
298 end
299
300 Post.new(params[:post], :as => :admin)
301
302 assign_attributes() with similar API was also added and attributes=(params, guard) was deprecated.
303
304 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.
305
306 *Josh Kalderimis*
307
308 * default_scope can take a block, lambda, or any other object which responds to `call` for lazy
309 evaluation:
310
311 default_scope { ... }
312 default_scope lambda { ... }
313 default_scope method(:foo)
314
315 This feature was originally implemented by Tim Morgan, but was then removed in favour of
316 defining a 'default_scope' class method, but has now been added back in by Jon Leighton.
317 The relevant lighthouse ticket is #1812.
318
319 * Default scopes are now evaluated at the latest possible moment, to avoid problems where
320 scopes would be created which would implicitly contain the default scope, which would then
321 be impossible to get rid of via Model.unscoped.
322
323 Note that this means that if you are inspecting the internal structure of an
324 ActiveRecord::Relation, it will *not* contain the default scope, though the resulting
325 query will do. You can get a relation containing the default scope by calling
326 ActiveRecord#with_default_scope, though this is not part of the public API.
327
328 *Jon Leighton*
329
330 * If you wish to merge default scopes in special ways, it is recommended to define your default
331 scope as a class method and use the standard techniques for sharing code (inheritance, mixins,
332 etc.):
333
334 class Post < ActiveRecord::Base
335 def self.default_scope
336 where(:published => true).where(:hidden => false)
337 end
338 end
339
340 *Jon Leighton*
341
342 * PostgreSQL adapter only supports PostgreSQL version 8.2 and higher.
343
344 * ConnectionManagement middleware is changed to clean up the connection pool
345 after the rack body has been flushed.
346
347 * Added an update_column method on ActiveRecord. This new method updates a given attribute on an object, skipping validations and callbacks.
348 It is recommended to use #update_attribute unless you are sure you do not want to execute any callback, including the modification of
349 the updated_at column. It should not be called on new records.
350 Example:
351
352 User.first.update_column(:name, "sebastian") # => true
353
354 *Sebastian Martinez*
355
356 * Associations with a :through option can now use *any* association as the
357 through or source association, including other associations which have a
358 :through option and has_and_belongs_to_many associations
359
360 *Jon Leighton*
361
362 * The configuration for the current database connection is now accessible via
363 ActiveRecord::Base.connection_config. *fxn*
364
365 * limits and offsets are removed from COUNT queries unless both are supplied.
366 For example:
367
368 People.limit(1).count # => 'SELECT COUNT(*) FROM people'
369 People.offset(1).count # => 'SELECT COUNT(*) FROM people'
370 People.limit(1).offset(1).count # => 'SELECT COUNT(*) FROM people LIMIT 1 OFFSET 1'
371
372 *lighthouse #6262*
373
374 * ActiveRecord::Associations::AssociationProxy has been split. There is now an Association class
375 (and subclasses) which are responsible for operating on associations, and then a separate,
376 thin wrapper called CollectionProxy, which proxies collection associations.
377
378 This prevents namespace pollution, separates concerns, and will allow further refactorings.
379
380 Singular associations (has_one, belongs_to) no longer have a proxy at all. They simply return
381 the associated record or nil. This means that you should not use undocumented methods such
382 as bob.mother.create - use bob.create_mother instead.
383
384 *Jon Leighton*
385
386 * Make has_many :through associations work correctly when you build a record and then save it. This
387 requires you to set the :inverse_of option on the source reflection on the join model, like so:
388
389 class Post < ActiveRecord::Base
390 has_many :taggings
391 has_many :tags, :through => :taggings
392 end
393
394 class Tagging < ActiveRecord::Base
395 belongs_to :post
396 belongs_to :tag, :inverse_of => :tagging # :inverse_of must be set!
397 end
398
399 class Tag < ActiveRecord::Base
400 has_many :taggings
401 has_many :posts, :through => :taggings
402 end
403
404 post = Post.first
405 tag = post.tags.build :name => "ruby"
406 tag.save # will save a Taggable linking to the post
407
408 *Jon Leighton*
409
410 * Support the :dependent option on has_many :through associations. For historical and practical
411 reasons, :delete_all is the default deletion strategy employed by association.delete(*records),
412 despite the fact that the default strategy is :nullify for regular has_many. Also, this only
413 works at all if the source reflection is a belongs_to. For other situations, you should directly
414 modify the through association.
415
416 *Jon Leighton*
417
418 * Changed the behaviour of association.destroy for has_and_belongs_to_many and has_many :through.
419 From now on, 'destroy' or 'delete' on an association will be taken to mean 'get rid of the link',
420 not (necessarily) 'get rid of the associated records'.
421
422 Previously, has_and_belongs_to_many.destroy(*records) would destroy the records themselves. It
423 would not delete any records in the join table. Now, it deletes the records in the join table.
424
425 Previously, has_many_through.destroy(*records) would destroy the records themselves, and the
426 records in the join table. [Note: This has not always been the case; previous version of Rails
427 only deleted the records themselves.] Now, it destroys only the records in the join table.
428
429 Note that this change is backwards-incompatible to an extent, but there is unfortunately no
430 way to 'deprecate' it before changing it. The change is being made in order to have
431 consistency as to the meaning of 'destroy' or 'delete' across the different types of associations.
432
433 If you wish to destroy the records themselves, you can do records.association.each(&:destroy)
434
435 *Jon Leighton*
436
437 * 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*
438
439 Example:
440
441 change_table(:users, :bulk => true) do |t|
442 t.string :company_name
443 t.change :birthdate, :datetime
444 end
445
446 This will now result in:
447
448 ALTER TABLE `users` ADD COLUMN `company_name` varchar(255), CHANGE `updated_at` `updated_at` datetime DEFAULT NULL
449
450 * Removed support for accessing attributes on a has_and_belongs_to_many join table. This has been
451 documented as deprecated behaviour since April 2006. Please use has_many :through instead.
452 *Jon Leighton*
453
454 * Added a create_association! method for has_one and belongs_to associations. *Jon Leighton*
455
456 * Migration files generated from model and constructive migration generators
457 (for example, add_name_to_users) use the reversible migration's `change`
458 method instead of the ordinary `up` and `down` methods. *Prem Sichanugrist*
459
460 * Removed support for interpolating string SQL conditions on associations. Instead, you should
461 use a proc, like so:
462
463 Before:
464
465 has_many :things, :conditions => 'foo = #{bar}'
466
467 After:
468
469 has_many :things, :conditions => proc { "foo = #{bar}" }
470
471 Inside the proc, 'self' is the object which is the owner of the association, unless you are
472 eager loading the association, in which case 'self' is the class which the association is within.
473
474 You can have any "normal" conditions inside the proc, so the following will work too:
475
476 has_many :things, :conditions => proc { ["foo = ?", bar] }
477
478 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
479 'record' to get the record being inserted or deleted. This is now passed as an argument to
480 the proc.
481
482 * Added ActiveRecord::Base#has_secure_password (via ActiveModel::SecurePassword) to encapsulate dead-simple password usage with BCrypt encryption and salting [DHH]. Example:
483
484 # Schema: User(name:string, password_digest:string, password_salt:string)
485 class User < ActiveRecord::Base
486 has_secure_password
487 end
488
489 user = User.new(:name => "david", :password => "", :password_confirmation => "nomatch")
490 user.save # => false, password required
491 user.password = "mUc3m00RsqyRe"
492 user.save # => false, confirmation doesn't match
493 user.password_confirmation = "mUc3m00RsqyRe"
494 user.save # => true
495 user.authenticate("notright") # => false
496 user.authenticate("mUc3m00RsqyRe") # => user
497 User.find_by_name("david").try(:authenticate, "notright") # => nil
498 User.find_by_name("david").try(:authenticate, "mUc3m00RsqyRe") # => user
499
500
501 * When a model is generated add_index is added by default for belongs_to or references columns
502
503 rails g model post user:belongs_to will generate the following:
504
505 class CreatePosts < ActiveRecord::Migration
506 def up
507 create_table :posts do |t|
508 t.belongs_to :user
509 t.timestamps
510 end
511
512 add_index :posts, :user_id
513 end
514
515 def down
516 drop_table :posts
517 end
518 end
519
520 *Santiago Pastorino*
521
522 * Setting the id of a belongs_to object will update the reference to the
523 object. [#2989 state:resolved]
524 * ActiveRecord::Base#dup and ActiveRecord::Base#clone semantics have changed
525 to closer match normal Ruby dup and clone semantics.
526 * Calling ActiveRecord::Base#clone will result in a shallow copy of the record,
527 including copying the frozen state. No callbacks will be called.
528 * Calling ActiveRecord::Base#dup will duplicate the record, including calling
529 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.
530 * Migrations can be defined as reversible, meaning that the migration system
531 will figure out how to reverse your migration. To use reversible migrations, just define the "change" method. For example:
532 class MyMigration < ActiveRecord::Migration
533 def change
534 create_table(:horses) do
535 t.column :content, :text
536 t.column :remind_at, :datetime
537 end
538 end
539 end
540
541 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.
542 * Migrations should use instance methods rather than class methods:
543 class FooMigration < ActiveRecord::Migration
544 def up
545 ...
546 end
547 end
548
549 *Aaron Patterson*
550
551 * has_one maintains the association with separate after_create/after_update instead
552 of a single after_save. *fxn*
553
554 * The following code:
555
556 Model.limit(10).scoping { Model.count }
557
558 now generates the following SQL:
559
560 SELECT COUNT(*) FROM models LIMIT 10
561
562 This may not return what you want. Instead, you may with to do something
563 like this:
564
565 Model.limit(10).scoping { Model.all.size }
566
567 *Aaron Patterson*
568
569
570 ## Rails 3.0.7 (April 18, 2011) ##
571
572 * Destroying records via nested attributes works independent of reject_if LH #6006 *Durran Jordan*
573
574 * Delegate any? and many? to Model.scoped for consistency *Andrew White*
575
576 * Quote the ORDER BY clause in batched finds - fixes #6620 *Andrew White*
577
578 * Change exists? so records are not instantiated - fixes #6127. This prevents after_find
579 and after_initialize callbacks being triggered when checking for record existence.
580 *Andrew White*
581
582 * Fix performance bug with attribute accessors which only occurred on Ruby 1.8.7, and ensure we
583 cache type-casted values when the column returned from the db contains non-standard chars.
584 *Jon Leighton*
585
586 * Fix a performance regression introduced here 86acbf1cc050c8fa8c74a10c735e467fb6fd7df8
587 related to read_attribute method *Stian Grytøyr*
588
589
590 ## Rails 3.0.6 (April 5, 2011) ##
591
592 * Un-deprecate reorder method *Sebastian Martinez*
593
594 * Extensions are applied when calling +except+ or +only+ on relations.
595 Thanks to Iain Hecker.
596
597 * Schemas set in set_table_name are respected by the mysql adapter. LH #5322
598
599 * Fixed a bug when empty? was called on a grouped Relation that wasn't loaded.
600 LH #5829
601
602 * Reapply extensions when using except and only. Thanks Iain Hecker.
603
604 * Binary data is escaped when being inserted to SQLite3 Databases. Thanks
605 Naruse!
606
607
608 ## Rails 3.0.5 (February 26, 2011) ##
609
610 * Model.where(:column => 1).where(:column => 2) will always produce an AND
611 query.
612 *Aaron Patterson*
613
614 * Deprecated support for interpolated association conditions in the form of :conditions => 'foo = #{bar}'.
615
616 Instead, you should use a proc, like so:
617
618 Before:
619
620 has_many :things, :conditions => 'foo = #{bar}'
621
622 After:
623
624 has_many :things, :conditions => proc { "foo = #{bar}" }
625
626 Inside the proc, 'self' is the object which is the owner of the association, unless you are
627 eager loading the association, in which case 'self' is the class which the association is within.
628
629 You can have any "normal" conditions inside the proc, so the following will work too:
630
631 has_many :things, :conditions => proc { ["foo = ?", bar] }
632
633 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
634 'record' to get the record being inserted or deleted. This is now passed as an argument to
635 the proc.
636
637 *Jon Leighton*
638
639
640 ## Rails 3.0.4 (February 8, 2011) ##
641
642 * Added deprecation warning for has_and_belongs_to_many associations where the join table has
643 additional attributes other than the keys. Access to these attributes is removed in 3.1.
644 Please use has_many :through instead. *Jon Leighton*
645
646
647 ## Rails 3.0.3 (November 16, 2010) ##
648
649 * Support find by class like this: Post.where(:name => Post)
650
651
652 ## Rails 3.0.2 (November 15, 2010) ##
653
654 * Dramatic speed increase (see: http://engineering.attinteractive.com/2010/10/arel-two-point-ohhhhh-yaaaaaa/) *Aaron Patterson*
655
656 * reorder is deprecated in favor of except(:order).order(...) *Santiago Pastorino*
657
658 * except is now AR public API
659
660 Model.order('name').except(:order).order('salary')
661
662 generates:
663
664 SELECT * FROM models ORDER BY salary
665
666 *Santiago Pastorino*
667
668 * The following code:
669
670 Model.limit(10).scoping { Model.count }
671
672 now generates the following SQL:
673
674 SELECT COUNT(*) FROM models LIMIT 10
675
676 This may not return what you want. Instead, you may with to do something
677 like this:
678
679 Model.limit(10).scoping { Model.all.size }
680
681 *Aaron Patterson*
682
683
684 ## Rails 3.0.1 (October 15, 2010) ##
685
686 * Introduce a fix for CVE-2010-3993
687
688
689 ## Rails 3.0.0 (August 29, 2010) ##
690
691 * Changed update_attribute to not run callbacks and update the record directly in the database *Neeraj Singh*
692
693 * Add scoping and unscoped as the syntax to replace the old with_scope and with_exclusive_scope *José Valim*
694
695 * New rake task, db:migrate:status, displays status of migrations #4947 *Kevin Skoglund*
696
697 * select and order for ActiveRecord now always concatenate nested calls. Use reorder if you want the original order to be overwritten *Santiago Pastorino*
698
699 * PostgreSQL: ensure the database time zone matches Ruby's time zone #4895 *Aaron Patterson*
700
701 * Fixed that ActiveRecord::Base.compute_type would swallow NoMethodError #4751 *Andrew Bloomgarden, Andrew White*
702
703 * Add index length support for MySQL. #1852 *Emili Parreno, Pratik Naik*
704
705 Example:
706
707 add_index(:accounts, :name, :name => 'by_name', :length => 10)
708 => CREATE INDEX by_name ON accounts(name(10))
709
710 add_index(:accounts, [:name, :surname], :name => 'by_name_surname', :length => {:name => 10, :surname => 15})
711 => CREATE INDEX by_name_surname ON accounts(name(10), surname(15))
712
713 * find_or_create_by_attr(value, ...) works when attr is protected. #4457 *Santiago Pastorino, Marc-André Lafortune*
714
715 * New callbacks: after_commit and after_rollback. Do expensive operations like image thumbnailing after_commit instead of after_save. #2991 *Brian Durand*
716
717 * 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*
718
719 * 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*
720
721 * PostgreSQL: drop support for old postgres driver. Use pg 0.9.0 or later. *Jeremy Kemper*
722
723 * Observers can prevent records from saving by returning false, just like before_save and friends. #4087 *Mislav Marohnić*
724
725 * Add Relation extensions. *Pratik Naik*
726
727 users = User.where(:admin => true).extending(User::AdminPowers)
728
729 latest_users = User.order('created_at DESC') do
730 def posts_count
731 Post.count(:user_id => to_a.map(&:id))
732 end
733 end
734
735 * To prefix the table names of all models in a module, define self.table_name_prefix on the module. #4032 *Andrew White*
736
737 * 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*
738
739 * 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*
740
741 * Allow relations to be used as scope.
742
743 class Item
744 scope :red, where(:colour => 'red')
745 end
746
747 Item.red.limit(10) # Ten red items
748
749 * Rename named_scope to scope. *Pratik Naik*
750
751 * Changed ActiveRecord::Base.store_full_sti_class to be true by default reflecting the previously announced Rails 3 default *DHH*
752
753 * Add Relation#except. *Pratik Naik*
754
755 one_red_item = Item.where(:colour => 'red').limit(1)
756 all_items = one_red_item.except(:where, :limit)
757
758 * Add Relation#delete_all. *Pratik Naik*
759
760 Item.where(:colour => 'red').delete_all
761
762 * Add Model.having and Relation#having. *Pratik Naik*
763
764 Developer.group("salary").having("sum(salary) > 10000").select("salary")
765
766 * Add Relation#count. *Pratik Naik*
767
768 legends = People.where("age > 100")
769 legends.count
770 legends.count(:age, :distinct => true)
771 legends.select('id').count
772
773 * Add Model.readonly and association_collection#readonly finder method. *Pratik Naik*
774
775 Post.readonly.to_a # Load all posts in readonly mode
776 @user.items.readonly(false).to_a # Load all the user items in writable mode
777
778 * Add .lock finder method *Pratik Naik*
779
780 User.lock.where(:name => 'lifo').to_a
781
782 old_items = Item.where("age > 100")
783 old_items.lock.each {|i| .. }
784
785 * Add Model.from and association_collection#from finder methods *Pratik Naik*
786
787 user = User.scoped
788 user.select('*').from('users, items')
789
790 * Add relation.destroy_all *Pratik Naik*
791
792 old_items = Item.where("age > 100")
793 old_items.destroy_all
794
795 * Add relation.exists? *Pratik Naik*
796
797 red_items = Item.where(:colours => 'red')
798 red_items.exists?
799 red_items.exists?(1)
800
801 * Add find(ids) to relations. *Pratik Naik*
802
803 old_users = User.order("age DESC")
804 old_users.find(1)
805 old_users.find(1, 2, 3)
806
807 * Add new finder methods to association collection. *Pratik Naik*
808
809 class User < ActiveRecord::Base
810 has_many :items
811 end
812
813 user = User.first
814 user.items.where(:items => {:colour => 'red'})
815 user.items.select('items.id')
816
817 * Add relation.reload to force reloading the records. *Pratik Naik*
818
819 topics = Topic.scoped
820 topics.to_a # force load
821 topics.first # returns a cached record
822 topics.reload
823 topics.first # Fetches a new record from the database
824
825 * Rename Model.conditions and relation.conditions to .where. *Pratik Naik*
826
827 Before :
828 User.conditions(:name => 'lifo')
829 User.select('id').conditions(["age > ?", 21])
830
831 Now :
832 User.where(:name => 'lifo')
833 User.select('id').where(["age > ?", 21])
834
835 * Add Model.select/group/order/limit/joins/conditions/preload/eager_load class methods returning a lazy relation. *Pratik Naik*
836
837 Examples :
838
839 posts = Post.select('id).order('name') # Returns a lazy relation
840 posts.each {|p| puts p.id } # Fires "select id from posts order by name"
841
842 * Model.scoped now returns a relation if invoked without any arguments. *Pratik Naik*
843
844 Example :
845
846 posts = Post.scoped
847 posts.size # Fires "select count(*) from posts" and returns the count
848 posts.each {|p| puts p.name } # Fires "select * from posts" and loads post objects
849
850 * Association inverses for belongs_to, has_one, and has_many. Optimization to reduce database queries. #3533 *Murray Steele*
851
852 # post.comments sets each comment's post without needing to :include
853 class Post < ActiveRecord::Base
854 has_many :comments, :inverse_of => :post
855 end
856
857 * MySQL: add_ and change_column support positioning. #3286 *Ben Marini*
858
859 * Reset your Active Record counter caches with the reset_counter_cache class method. #1211 *Mike Breen, Gabe da Silveira*
860
861 * Remove support for SQLite 2. Please upgrade to SQLite 3+ or install the plugin from git://github.com/rails/sqlite2_adapter.git *Pratik Naik*
862
863 * PostgreSQL: XML datatype support. #1874 *Leonardo Borges*
864
865 * 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*
866
867 * SQLite: drop support for 'dbfile' option in favor of 'database.' #2363 *Paul Hinze, Jeremy Kemper*
868
869 * Added :primary_key option to belongs_to associations. #765 *Szymon Nowak, Philip Hallstrom, Noel Rocha*
870 # employees.company_name references companies.name
871 Employee.belongs_to :company, :primary_key => 'name', :foreign_key => 'company_name'
872
873 * Implement #many? for NamedScope and AssociationCollection using #size. #1500 *Chris Kampmeier*
874
875 * Added :touch option to belongs_to associations that will touch the parent record when the current record is saved or destroyed *DHH*
876
877 * Added ActiveRecord::Base#touch to update the updated_at/on attributes (or another specified timestamp) with the current time *DHH*
878
879
880 ## 2.3.2 Final (March 15, 2009) ##
881
882 * Added ActiveRecord::Base.find_each and ActiveRecord::Base.find_in_batches for batch processing *DHH/Jamis Buck*
883
884 * Added that ActiveRecord::Base.exists? can be called with no arguments #1817 *Scott Taylor*
885
886 * Add Support for updating deeply nested models from a single form. #1202 *Eloy Duran*
887
888 class Book < ActiveRecord::Base
889 has_one :author
890 has_many :pages
891
892 accepts_nested_attributes_for :author, :pages
893 end
894
895 * Make after_save callbacks fire only if the record was successfully saved. #1735 *Michael Lovitt*
896
897 Previously the callbacks would fire if a before_save cancelled saving.
898
899 * Support nested transactions using database savepoints. #383 *Jonathan Viney, Hongli Lai*
900
901 * Added dynamic scopes ala dynamic finders #1648 *Yaroslav Markin*
902
903 * Fixed that ActiveRecord::Base#new_record? should return false (not nil) for existing records #1219 *Yaroslav Markin*
904
905 * I18n the word separator for error messages. Introduces the activerecord.errors.format.separator translation key. #1294 *Akira Matsuda*
906
907 * Add :having as a key to find and the relevant associations. *Emilio Tagua*
908
909 * Added default_scope to Base #1381 [Paweł Kondzior]. Example:
910
911 class Person < ActiveRecord::Base
912 default_scope :order => 'last_name, first_name'
913 end
914
915 class Company < ActiveRecord::Base
916 has_many :people
917 end
918
919 Person.all # => Person.find(:all, :order => 'last_name, first_name')
920 Company.find(1).people # => Person.find(:all, :order => 'last_name, first_name', :conditions => { :company_id => 1 })
921
922
923 ## 2.2.1 RC2 (November 14th, 2008) ##
924
925 * Ensure indices don't flip order in schema.rb #1266 *Jordi Bunster*
926
927 * Fixed that serialized strings should never be type-casted (i.e. turning "Yes" to a boolean) #857 *Andreas Korth*
928
929
930 ## 2.2.0 RC1 (October 24th, 2008) ##
931
932 * Skip collection ids reader optimization if using :finder_sql *Jeremy Kemper*
933
934 * Add Model#delete instance method, similar to Model.delete class method. #1086 *Hongli Lai (Phusion)*
935
936 * MySQL: cope with quirky default values for not-null text columns. #1043 *Frederick Cheung*
937
938 * Multiparameter attributes skip time zone conversion for time-only columns [#1030 state:resolved] *Geoff Buesing*
939
940 * Base.skip_time_zone_conversion_for_attributes uses class_inheritable_accessor, so that subclasses don't overwrite Base [#346 state:resolved] *Emilio Tagua*
941
942 * Added find_last_by dynamic finder #762 *Emilio Tagua*
943
944 * Internal API: configurable association options and build_association method for reflections so plugins may extend and override. #985 *Hongli Lai (Phusion)*
945
946 * Changed benchmarks to be reported in milliseconds *David Heinemeier Hansson*
947
948 * Connection pooling. #936 *Nick Sieger*
949
950 * Merge scoped :joins together instead of overwriting them. May expose scoping bugs in your code! #501 *Andrew White*
951
952 * 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*
953
954 * Transactional migrations for databases which support them. #834 *divoxx, Adam Wiggins, Tarmo Tänav*
955
956 * Set config.active_record.timestamped_migrations = false to have migrations with numeric prefix instead of UTC timestamp. #446. *Andrew Stone, Nik Wakelin*
957
958 * change_column_default preserves the not-null constraint. #617 *Tarmo Tänav*
959
960 * Fixed that create database statements would always include "DEFAULT NULL" (Nick Sieger) *#334*
961
962 * Add :tokenizer option to validates_length_of to specify how to split up the attribute string. #507. [David Lowenfels] Example :
963
964 \# Ensure essay contains at least 100 words.
965 validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least %d words."), :tokenizer => lambda {|str| str.scan(/\w+/) }
966
967 * Allow conditions on multiple tables to be specified using hash. [Pratik Naik]. Example:
968
969 User.all :joins => :items, :conditions => { :age => 10, :items => { :color => 'black' } }
970 Item.first :conditions => { :items => { :color => 'red' } }
971
972 * Always treat integer :limit as byte length. #420 *Tarmo Tänav*
973
974 * Partial updates don't update lock_version if nothing changed. #426 *Daniel Morrison*
975
976 * Fix column collision with named_scope and :joins. #46 *Duncan Beevers, Mark Catley*
977
978 * db:migrate:down and :up update schema_migrations. #369 *Michael Raidel, RaceCondition*
979
980 * PostgreSQL: support :conditions => [':foo::integer', { :foo => 1 }] without treating the ::integer typecast as a bind variable. *Tarmo Tänav*
981
982 * MySQL: rename_column preserves column defaults. #466 *Diego Algorta*
983
984 * Add :from option to calculations. #397 *Ben Munat*
985
986 * Add :validate option to associations to enable/disable the automatic validation of associated models. Resolves #301. *Jan De Poorter*
987
988 * PostgreSQL: use 'INSERT ... RETURNING id' for 8.2 and later. *Jeremy Kemper*
989
990 * Added SQL escaping for :limit and :offset in MySQL *Jonathan Wiess*
991
992
993 ## 2.1.0 (May 31st, 2008) ##
994
995 * Add ActiveRecord::Base.sti_name that checks ActiveRecord::Base#store_full_sti_class? and returns either the full or demodulized name. *Rick Olson*
996
997 * Add first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
998
999 * Added SQL escaping for :limit and :offset #288 *Aaron Bedra, Steven Bristol, Jonathan Wiess*
1000
1001 * Added first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
1002
1003 * Ensure hm:t preloading honours reflection options. Resolves #137. *Frederick Cheung*
1004
1005 * Added protection against duplicate migration names (Aslak Hellesøy) *#112*
1006
1007 * 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*
1008
1009 * 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*
1010
1011 * Added change_table for migrations (Jeff Dean) [#71]. Example:
1012
1013 change_table :videos do |t|
1014 t.timestamps # adds created_at, updated_at
1015 t.belongs_to :goat # adds goat_id integer
1016 t.string :name, :email, :limit => 20 # adds name and email both with a 20 char limit
1017 t.remove :name, :email # removes the name and email columns
1018 end
1019
1020 * Fixed has_many :through .create with no parameters caused a "can't dup NilClass" error (Steven Soroka) *#85*
1021
1022 * Added block-setting of attributes for Base.create like Base.new already has (Adam Meehan) *#39*
1023
1024 * Fixed that pessimistic locking you reference the quoted table name (Josh Susser) *#67*
1025
1026 * Fixed that change_column should be able to use :null => true on a field that formerly had false [Nate Wiger] *#26*
1027
1028 * Added that the MySQL adapter should map integer to either smallint, int, or bigint depending on the :limit just like PostgreSQL *David Heinemeier Hansson*
1029
1030 * Change validates_uniqueness_of :case_sensitive option default back to true (from [9160]). Love your database columns, don't LOWER them. *Rick Olson*
1031
1032 * Add support for interleaving migrations by storing which migrations have run in the new schema_migrations table. Closes #11493 *Jordi Bunster*
1033
1034 * ActiveRecord::Base#sum defaults to 0 if no rows are returned. Closes #11550 *Kamal Fariz Mahyuddin*
1035
1036 * Ensure that respond_to? considers dynamic finder methods. Closes #11538. *James Mead*
1037
1038 * Ensure that save on parent object fails for invalid has_one association. Closes #10518. *Pratik Naik*
1039
1040 * Remove duplicate code from associations. *Pratik Naik*
1041
1042 * Refactor HasManyThroughAssociation to inherit from HasManyAssociation. Association callbacks and <association>_ids= now work with hm:t. #11516 *Ruy Asan*
1043
1044 * Ensure HABTM#create and HABTM#build do not load entire association. *Pratik Naik*
1045
1046 * Improve documentation. *Xavier Noria, Jack Danger Canty, leethal*
1047
1048 * Tweak ActiveRecord::Base#to_json to include a root value in the returned hash: {"post": {"title": ...}} *Rick Olson*
1049
1050 Post.find(1).to_json # => {"title": ...}
1051 config.active_record.include_root_in_json = true
1052 Post.find(1).to_json # => {"post": {"title": ...}}
1053
1054 * Add efficient #include? to AssociationCollection (for has_many/has_many :through/habtm). *stopdropandrew*
1055
1056 * PostgreSQL: create_ and drop_database support. #9042 *ez, pedz, Nick Sieger*
1057
1058 * Ensure that validates_uniqueness_of works with with_scope. Closes #9235. *Nik Wakelin, cavalle*
1059
1060 * Partial updates include only unsaved attributes. Off by default; set YourClass.partial_updates = true to enable. *Jeremy Kemper*
1061
1062 * Removing unnecessary uses_tzinfo helper from tests, given that TZInfo is now bundled *Geoff Buesing*
1063
1064 * Fixed that validates_size_of :within works in associations #11295, #10019 *cavalle*
1065
1066 * Track changes to unsaved attributes. *Jeremy Kemper*
1067
1068 * 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*
1069
1070 * Fixed that has_many :through would ignore the hash conditions #11447 *Emilio Tagua*
1071
1072 * Fix issue where the :uniq option of a has_many :through association is ignored when find(:all) is called. Closes #9407 *cavalle*
1073
1074 * Fix duplicate table alias error when including an association with a has_many :through association on the same join table. Closes #7310 *cavalle*
1075
1076 * More efficient association preloading code that compacts a through_records array in a central location. Closes #11427 *Jack Danger Canty*
1077
1078 * Improve documentation. *Ryan Bigg, Jan De Poorter, Cheah Chu Yeow, Xavier Shay, Jack Danger Canty, Emilio Tagua, Xavier Noria, Sunny Ripert*
1079
1080 * Fixed that ActiveRecord#Base.find_or_create/initialize would not honor attr_protected/accessible when used with a hash #11422 *Emilio Tagua*
1081
1082 * Added ActiveRecord#Base.all/first/last as aliases for find(:all/:first/:last) #11413 *nkallen, Chris O'Sullivan*
1083
1084 * Merge the has_finder gem, renamed as 'named_scope'. #11404 *nkallen*
1085
1086 class Article < ActiveRecord::Base
1087 named_scope :published, :conditions => {:published => true}
1088 named_scope :popular, :conditions => ...
1089 end
1090
1091 Article.published.paginate(:page => 1)
1092 Article.published.popular.count
1093 Article.popular.find(:first)
1094 Article.popular.find(:all, :conditions => {...})
1095
1096 See http://pivots.pivotallabs.com/users/nick/blog/articles/284-hasfinder-it-s-now-easier-than-ever-to-create-complex-re-usable-sql-queries
1097
1098 * Add has_one :through support. #4756 *Chris O'Sullivan*
1099
1100 * Migrations: create_table supports primary_key_prefix_type. #10314 *student, Chris O'Sullivan*
1101
1102 * Added logging for dependency load errors with fixtures #11056 *stuthulhu*
1103
1104 * Time zone aware attributes use Time#in_time_zone *Geoff Buesing*
1105
1106 * Fixed that scoped joins would not always be respected #6821 *Theory/Jack Danger Canty*
1107
1108 * Ensure that ActiveRecord::Calculations disambiguates field names with the table name. #11027 *cavalle*
1109
1110 * Added add/remove_timestamps to the schema statements for adding the created_at/updated_at columns on existing tables #11129 *jramirez*
1111
1112 * Added ActiveRecord::Base.find(:last) #11338 *Emilio Tagua*
1113
1114 * test_native_types expects DateTime.local_offset instead of DateTime.now.offset; fixes test breakage due to dst transition *Geoff Buesing*
1115
1116 * Add :readonly option to HasManyThrough associations. #11156 *Emilio Tagua*
1117
1118 * Improve performance on :include/:conditions/:limit queries by selectively joining in the pre-query. #9560 *dasil003*
1119
1120 * Perf fix: Avoid the use of named block arguments. Closes #11109 *adymo*
1121
1122 * PostgreSQL: support server versions 7.4 through 8.0 and the ruby-pg driver. #11127 *jdavis*
1123
1124 * Ensure association preloading doesn't break when an association returns nil. ##11145 *GMFlash*
1125
1126 * Make dynamic finders respect the :include on HasManyThrough associations. #10998. *cpytel*
1127
1128 * 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*
1129
1130 * Refactor ConnectionAdapters::Column.new_time: leverage DateTime failover behavior of Time#time_with_datetime_fallback *Geoff Buesing*
1131
1132 * Improve associations performance by using symbol callbacks instead of string callbacks. #11108 *adymo*
1133
1134 * Optimise the BigDecimal conversion code. #11110 *adymo*
1135
1136 * Introduce the :readonly option to all associations. Records from the association cannot be saved. #11084 *Emilio Tagua*
1137
1138 * Multiparameter attributes for time columns fail over to DateTime when out of range of Time *Geoff Buesing*
1139
1140 * Base#instantiate_time_object uses Time.zone.local() *Geoff Buesing*
1141
1142 * Add timezone-aware attribute readers and writers. #10982 *Geoff Buesing*
1143
1144 * Instantiating time objects in multiparameter attributes uses Time.zone if available. #10982 *Rick Olson*
1145
1146 * Add note about how ActiveRecord::Observer classes are initialized in a Rails app. #10980 *Xavier Noria*
1147
1148 * MySQL: omit text/blob defaults from the schema instead of using an empty string. #10963 *mdeiters*
1149
1150 * belongs_to supports :dependent => :destroy and :delete. #10592 *Jonathan Viney*
1151
1152 * Introduce preload query strategy for eager :includes. #9640 *Frederick Cheung, Aliaksey Kandratsenka, codafoo*
1153
1154 * Support aggregations in finder conditions. #10572 *Ryan Kinderman*
1155
1156 * Organize and clean up the Active Record test suite. #10742 *John Barnette*
1157
1158 * Ensure that modifying has_and_belongs_to_many actions clear the query cache. Closes #10840 *john.andrews*
1159
1160 * Fix issue where Table#references doesn't pass a :null option to a *_type attribute for polymorphic associations. Closes #10753 *railsjitsu*
1161
1162 * Fixtures: removed support for the ancient pre-YAML file format. #10736 *John Barnette*
1163
1164 * More thoroughly quote table names. #10698 *dimdenis, lotswholetime, Jeremy Kemper*
1165
1166 * 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*
1167
1168 * Added ActiveRecord::Base.cache_key to make it easier to cache Active Records in combination with the new ActiveSupport::Cache::* libraries *David Heinemeier Hansson*
1169
1170 * Make sure CSV fixtures are compatible with ruby 1.9's new csv implementation. *JEG2*
1171
1172 * Added by parameter to increment, decrement, and their bang varieties so you can do player1.increment!(:points, 5) #10542 *Sam*
1173
1174 * Optimize ActiveRecord::Base#exists? to use #select_all instead of #find. Closes #10605 *jamesh, Frederick Cheung, protocool*
1175
1176 * Don't unnecessarily load has_many associations in after_update callbacks. Closes #6822 *stopdropandrew, canadaduane*
1177
1178 * Eager belongs_to :include infers the foreign key from the association name rather than the class name. #10517 *Jonathan Viney*
1179
1180 * SQLite: fix rename_ and remove_column for columns with unique indexes. #10576 *Brandon Keepers*
1181
1182 * Ruby 1.9 compatibility. #10655 *Jeremy Kemper, Dirkjan Bussink*
1183
1184
1185 ## 2.0.2 (December 16th, 2007) ##
1186
1187 * Ensure optimistic locking handles nil #lock_version values properly. Closes #10510 *Rick Olson*
1188
1189 * Make the Fixtures Test::Unit enhancements more supporting for double-loaded test cases. Closes #10379 *brynary*
1190
1191 * Fix that validates_acceptance_of still works for non-existent tables (useful for bootstrapping new databases). Closes #10474 *Josh Susser*
1192
1193 * Ensure that the :uniq option for has_many :through associations retains the order. #10463 *remvee*
1194
1195 * Base.exists? doesn't rescue exceptions to avoid hiding SQL errors. #10458 *Michael Klishin*
1196
1197 * Documentation: Active Record exceptions, destroy_all and delete_all. #10444, #10447 *Michael Klishin*
1198
1199
1200 ## 2.0.1 (December 7th, 2007) ##
1201
1202 * Removed query cache rescue as it could cause code to be run twice (closes #10408) *David Heinemeier Hansson*
1203
1204
1205 ## 2.0.0 (December 6th, 2007) ##
1206
1207 * 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*
1208
1209 * 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*
1210
1211 * Fixed that the truncation of strings longer than 50 chars should use inspect
1212 so newlines etc are escaped #10385 [Norbert Crombach]
1213 * Fixed that habtm associations should be able to set :select as part of their definition and have that honored *David Heinemeier Hansson*
1214
1215 * Document how the :include option can be used in Calculations::calculate. Closes #7446 *adamwiggins, ultimoamore*
1216
1217 * Fix typo in documentation for polymorphic associations w/STI. Closes #7461 *johnjosephbachir*
1218
1219 * 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*
1220
1221 * More complete documentation for find_by_sql. Closes #7912 *fearoffish*
1222
1223 * Added ActiveRecord::Base#becomes to turn a record into one of another class (mostly relevant for STIs) [David Heinemeier Hansson]. Example:
1224
1225 render :partial => @client.becomes(Company) # renders companies/company instead of clients/client
1226
1227 * Fixed that to_xml should not automatically pass :procs to associations included with :include #10162 *Cheah Chu Yeow*
1228
1229 * Fix documentation typo introduced in [8250]. Closes #10339 *Henrik N*
1230
1231 * Foxy fixtures: support single-table inheritance. #10234 *tom*
1232
1233 * Foxy fixtures: allow mixed usage to make migration easier and more attractive. #10004 *lotswholetime*
1234
1235 * Make the record_timestamps class-inheritable so it can be set per model. #10004 *tmacedo*
1236
1237 * Allow validates_acceptance_of to use a real attribute instead of only virtual (so you can record that the acceptance occured) #7457 *ambethia*
1238
1239 * DateTimes use Ruby's default calendar reform setting. #10201 *Geoff Buesing*
1240
1241 * Dynamic finders on association collections respect association :order and :limit. #10211, #10227 *Patrick Joyce, Rick Olson, Jack Danger Canty*
1242
1243 * Add 'foxy' support for fixtures of polymorphic associations. #10183 *John Barnette, David Lowenfels*
1244
1245 * validates_inclusion_of and validates_exclusion_of allow formatted :message strings. #8132 *devrieda, Mike Naberezny*
1246
1247 * attr_readonly behaves well with optimistic locking. #10188 *Nick Bugajski*
1248
1249 * Base#to_xml supports the nil="true" attribute like Hash#to_xml. #8268 *Jonathan del Strother*
1250
1251 * Change plings to the more conventional quotes in the documentation. Closes #10104 *Jack Danger Canty*
1252
1253 * Fix HasManyThrough Association so it uses :conditions on the HasMany Association. Closes #9729 *Jack Danger Canty*
1254
1255 * Ensure that column names are quoted. Closes #10134 *wesley.moxam*
1256
1257 * Smattering of grammatical fixes to documentation. Closes #10083 *Bob Silva*
1258
1259 * Enhance explanation with more examples for attr_accessible macro. Closes #8095 *fearoffish, Marcel Molina Jr.*
1260
1261 * Update association/method mapping table to refected latest collection methods for has_many :through. Closes #8772 *Pratik Naik*
1262
1263 * Explain semantics of having several different AR instances in a transaction block. Closes #9036 *jacobat, Marcel Molina Jr.*
1264
1265 * Update Schema documentation to use updated sexy migration notation. Closes #10086 *Sam Granieri*
1266
1267 * Make fixtures work with the new test subclasses. *Tarmo Tänav, Michael Koziarski*
1268
1269 * Introduce finder :joins with associations. Same :include syntax but with inner rather than outer joins. #10012 *RubyRedRick*
1270 # Find users with an avatar
1271 User.find(:all, :joins => :avatar)
1272
1273 # Find posts with a high-rated comment.
1274 Post.find(:all, :joins => :comments, :conditions => 'comments.rating > 3')
1275
1276 * Associations: speedup duplicate record check. #10011 *Pratik Naik*
1277
1278 * Make sure that << works on has_many associations on unsaved records. Closes #9989 *Josh Susser*
1279
1280 * Allow association redefinition in subclasses. #9346 *wildchild*
1281
1282 * Fix has_many :through delete with custom foreign keys. #6466 *naffis*
1283
1284 * Foxy fixtures, from rathole (http://svn.geeksomnia.com/rathole/trunk/README)
1285 - stable, autogenerated IDs
1286 - specify associations (belongs_to, has_one, has_many) by label, not ID
1287 - specify HABTM associations as inline lists
1288 - autofill timestamp columns
1289 - support YAML defaults
1290 - fixture label interpolation
1291 Enabled for fixtures that correspond to a model class and don't specify a primary key value. #9981 *John Barnette*
1292
1293 * Add docs explaining how to protect all attributes using attr_accessible with no arguments. Closes #9631 *boone, rmm5t*
1294
1295 * Update add_index documentation to use new options api. Closes #9787 *Kamal Fariz Mahyuddin*
1296
1297 * Allow find on a has_many association defined with :finder_sql to accept id arguments as strings like regular find does. Closes #9916 *krishna*
1298
1299 * Use VALID_FIND_OPTIONS when resolving :find scoping rather than hard coding the list of valid find options. Closes #9443 *sur*
1300
1301 * Limited eager loading no longer ignores scoped :order. Closes #9561 *Jack Danger Canty, Josh Peek*
1302
1303 * 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*
1304
1305 * Assigning nil to a composed_of aggregate also sets its immediate value to nil. #9843 *Chris Cruft*
1306
1307 * Ensure that mysql quotes table names with database names correctly. Closes #9911 *crayz*
1308
1309 "foo.bar" => "`foo`.`bar`"
1310
1311 * Complete the assimilation of Sexy Migrations from ErrFree *Chris Wanstrath, PJ Hyett*
1312 http://errtheblog.com/post/2381
1313
1314 * Qualified column names work in hash conditions, like :conditions => { 'comments.created_at' => ... }. #9733 *Jack Danger Canty*
1315
1316 * 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*
1317
1318 * Refactor association create and build so before & after callbacks behave consistently. #8854 *Pratik Naik, mortent*
1319
1320 * Quote table names. Defaults to column quoting. #4593 *Justin Lynn, gwcoffey, eadz, Dmitry V. Sabanin, Jeremy Kemper*
1321
1322 * Alias association #build to #new so it behaves predictably. #8787 *Pratik Naik*
1323
1324 * Add notes to documentation regarding attr_readonly behavior with counter caches and polymorphic associations. Closes #9835 *saimonmoore, Rick Olson*
1325
1326 * Observers can observe model names as symbols properly now. Closes #9869 *queso*
1327
1328 * find_and_(initialize|create)_by methods can now properly initialize protected attributes *Tobias Lütke*
1329
1330 * belongs_to infers the foreign key from the association name instead of from the class name. *Jeremy Kemper*
1331
1332 * PostgreSQL: support multiline default values. #7533 *Carl Lerche, aguynamedryan, Rein Henrichs, Tarmo Tänav*
1333
1334 * MySQL: fix change_column on not-null columns that don't accept dfeault values of ''. #6663 *Jonathan Viney, Tarmo Tänav*
1335
1336 * validates_uniqueness_of behaves well with abstract superclasses and
1337 single-table inheritance. #3833, #9886 [Gabriel Gironda, rramdas, François Beausoleil, Josh Peek, Tarmo Tänav, pat]
1338 * Warn about protected attribute assigments in development and test environments when mass-assigning to an attr_protected attribute. #9802 *Henrik N*
1339
1340 * Speedup database date/time parsing. *Jeremy Kemper, Tarmo Tänav*
1341
1342 * Fix calling .clear on a has_many :dependent=>:delete_all association. *Tarmo Tänav*
1343
1344 * Allow change_column to set NOT NULL in the PostgreSQL adapter *Tarmo Tänav*
1345
1346 * Fix that ActiveRecord would create attribute methods and override custom attribute getters if the method is also defined in Kernel.methods. *Rick Olson*
1347
1348 * 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*
1349
1350 * 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*
1351
1352
1353 ## 2.0.0 Preview Release (September 29th, 2007) Includes duplicates of changes from 1.14.2 - 1.15.3 ##
1354
1355 * Add attr_readonly to specify columns that are skipped during a normal ActiveRecord #save operation. Closes #6896 *Dan Manges*
1356
1357 class Comment < ActiveRecord::Base
1358 # Automatically sets Article#comments_count as readonly.
1359 belongs_to :article, :counter_cache => :comments_count
1360 end
1361
1362 class Article < ActiveRecord::Base
1363 attr_readonly :approved_comments_count
1364 end
1365
1366 * Make size for has_many :through use counter cache if it exists. Closes #9734 *Xavier Shay*
1367
1368 * Remove DB2 adapter since IBM chooses to maintain their own adapter instead. *Jeremy Kemper*
1369
1370 * Extract Oracle, SQLServer, and Sybase adapters into gems. *Jeremy Kemper*
1371
1372 * Added fixture caching that'll speed up a normal fixture-powered test suite between 50% and 100% #9682 *Frederick Cheung*
1373
1374 * Correctly quote id list for limited eager loading. #7482 *tmacedo*
1375
1376 * Fixed that using version-targetted migrates would fail on loggers other than the default one #7430 *valeksenko*
1377
1378 * Fixed rename_column for SQLite when using symbols for the column names #8616 *drodriguez*
1379
1380 * Added the possibility of using symbols in addition to concrete classes with ActiveRecord::Observer#observe. #3998 *Robby Russell, Tarmo Tänav*
1381
1382 * Added ActiveRecord::Base#to_json/from_json *David Heinemeier Hansson, Cheah Chu Yeow*
1383
1384 * Added ActiveRecord::Base#from_xml [David Heinemeier Hansson]. Example:
1385
1386 xml = "<person><name>David</name></person>"
1387 Person.new.from_xml(xml).name # => "David"
1388
1389 * Define dynamic finders as real methods after first usage. *bscofield*
1390
1391 * Deprecation: remove deprecated threaded_connections methods. Use allow_concurrency instead. *Jeremy Kemper*
1392
1393 * Associations macros accept extension blocks alongside modules. #9346 *Josh Peek*
1394
1395 * Speed up and simplify query caching. *Jeremy Kemper*
1396
1397 * connection.select_rows 'sql' returns an array (rows) of arrays (field values). #2329 *Michael Schuerig*
1398
1399 * Eager loading respects explicit :joins. #9496 *dasil003*
1400
1401 * Extract Firebird, FrontBase, and OpenBase adapters into gems. #9508, #9509, #9510 *Jeremy Kemper*
1402
1403 * RubyGem database adapters: expects a gem named activerecord-<database>-adapter with active_record/connection_adapters/<database>_adapter.rb in its load path. *Jeremy Kemper*
1404
1405 * Fixed that altering join tables in migrations would fail w/ sqlite3 #7453 *TimoMihaljov/brandon*
1406
1407 * Fix association writer with :dependent => :nullify. #7314 *Jonathan Viney*
1408
1409 * OpenBase: update for new lib and latest Rails. Support migrations. #8748 *dcsesq*
1410
1411 * Moved acts_as_tree into a plugin of the same name on the official Rails svn. #9514 *Pratik Naik*
1412
1413 * Moved acts_as_nested_set into a plugin of the same name on the official Rails svn. #9516 *Josh Peek*
1414
1415 * Moved acts_as_list into a plugin of the same name on the official Rails svn. *Josh Peek*
1416
1417 * Explicitly require active_record/query_cache before using it. *Jeremy Kemper*
1418
1419 * Fix bug where unserializing an attribute attempts to modify a frozen @attributes hash for a deleted record. *Rick Olson, marclove*
1420
1421 * Performance: absorb instantiate and initialize_with_callbacks into the Base methods. *Jeremy Kemper*
1422
1423 * Fixed that eager loading queries and with_scope should respect the :group option *David Heinemeier Hansson*
1424
1425 * Improve performance and functionality of the postgresql adapter. Closes #8049 *roderickvd*
1426
1427 For more information see: http://dev.rubyonrails.org/ticket/8049
1428
1429 * Don't clobber includes passed to has_many.count *Jack Danger Canty*
1430
1431 * Make sure has_many uses :include when counting *Jack Danger Canty*
1432
1433 * Change the implementation of ActiveRecord's attribute reader and writer methods *Michael Koziarski*
1434 - 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.
1435 * Perform a deep #dup on query cache results so that modifying activerecord attributes does not modify the cached attributes. *Rick Olson*
1436
1437 \# Ensure that has_many :through associations use a count query instead of loading the target when #size is called. Closes #8800 [Pratik Naik]
1438 * Added :unless clause to validations #8003 [monki]. Example:
1439
1440 def using_open_id?
1441 !identity_url.blank?
1442 end
1443
1444 validates_presence_of :identity_url, :if => using_open_id?
1445 validates_presence_of :username, :unless => using_open_id?
1446 validates_presence_of :password, :unless => using_open_id?
1447
1448 * Fix #count on a has_many :through association so that it recognizes the :uniq option. Closes #8801 *Pratik Naik*
1449
1450 * Fix and properly document/test count(column_name) usage. Closes #8999 *Pratik Naik*
1451
1452 * Remove deprecated count(conditions=nil, joins=nil) usage. Closes #8993 *Pratik Naik*
1453
1454 * Change belongs_to so that the foreign_key assumption is taken from the association name, not the class name. Closes #8992 *Josh Susser*
1455
1456 OLD
1457 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is user_id
1458
1459 NEW
1460 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is visitor_id
1461
1462 * Remove spurious tests from deprecated_associations_test, most of these aren't deprecated, and are duplicated in associations_test. Closes #8987 *Pratik Naik*
1463
1464 * Make create! on a has_many :through association return the association object. Not the collection. Closes #8786 *Pratik Naik*
1465
1466 * Move from select * to select tablename.* to avoid clobbering IDs. Closes #8889 *dasil003*
1467
1468 * Don't call unsupported methods on associated objects when using :include, :method with to_xml #7307, *Manfred Stienstra, jwilger*
1469
1470 * Define collection singular ids method for has_many :through associations. #8763 *Pratik Naik*
1471
1472 * Array attribute conditions work with proxied association collections. #8318 *Kamal Fariz Mahyuddin, theamazingrando*
1473
1474 * Fix polymorphic has_one associations declared in an abstract class. #8638 *Pratik Naik, Dax Huiberts*
1475
1476 * Fixed validates_associated should not stop on the first error. #4276 *mrj, Manfred Stienstra, Josh Peek*
1477
1478 * Rollback if commit raises an exception. #8642 *kik, Jeremy Kemper*
1479
1480 * Update tests' use of fixtures for the new collections api. #8726 *Kamal Fariz Mahyuddin*
1481
1482 * Save associated records only if the association is already loaded. #8713 *Blaine*
1483
1484 * MySQL: fix show_variable. #8448 *matt, Jeremy Kemper*
1485
1486 * Fixtures: correctly delete and insert fixtures in a single transaction. #8553 *Michael Schuerig*
1487
1488 * Fixtures: people(:technomancy, :josh) returns both fixtures. #7880 *technomancy, Josh Peek*
1489
1490 * Calculations support non-numeric foreign keys. #8154 *Kamal Fariz Mahyuddin*
1491
1492 * with_scope is protected. #8524 *Josh Peek*
1493
1494 * Quickref for association methods. #7723 *marclove, Mindsweeper*
1495
1496 * Calculations: return nil average instead of 0 when there are no rows to average. #8298 *davidw*
1497
1498 * acts_as_nested_set: direct_children is sorted correctly. #4761 *Josh Peek, rails@33lc0.net*
1499
1500 * Raise an exception if both attr_protected and attr_accessible are declared. #8507 *stellsmi*
1501
1502 * SQLite, MySQL, PostgreSQL, Oracle: quote column names in column migration SQL statements. #8466 *marclove, lorenjohnson*
1503
1504 * Allow nil serialized attributes with a set class constraint. #7293 *sandofsky*
1505
1506 * Oracle: support binary fixtures. #7987 *Michael Schoen*
1507
1508 * Fixtures: pull fixture insertion into the database adapters. #7987 *Michael Schoen*
1509
1510 * Announce migration versions as they're performed. *Jeremy Kemper*
1511
1512 * find gracefully copes with blank :conditions. #7599 *Dan Manges, johnnyb*
1513
1514 * 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*
1515
1516 * MySQL: create_database takes :charset and :collation options. Charset defaults to utf8. #8448 *matt*
1517
1518 * Find with a list of ids supports limit/offset. #8437 *hrudududu*
1519
1520 * Optimistic locking: revert the lock version when an update fails. #7840 *plang*
1521
1522 * Migrations: add_column supports custom column types. #7742 *jsgarvin, Theory*
1523
1524 * 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*
1525
1526 * Ensure that associations with :dependent => :delete_all respect :conditions option. Closes #8034 *Jack Danger Canty, Josh Peek, Rick Olson*
1527
1528 * belongs_to assignment creates a new proxy rather than modifying its target in-place. #8412 *mmangino@elevatedrails.com*
1529
1530 * Fix column type detection while loading fixtures. Closes #7987 *roderickvd*
1531
1532 * Document deep eager includes. #6267 *Josh Susser, Dan Manges*
1533
1534 * Document warning that associations names shouldn't be reserved words. #4378 *murphy@cYcnus.de, Josh Susser*
1535
1536 * Sanitize Base#inspect. #8392, #8623 *Nik Wakelin, jnoon*
1537
1538 * Replace the transaction {|transaction|..} semantics with a new Exception ActiveRecord::Rollback. *Michael Koziarski*
1539
1540 * Oracle: extract column length for CHAR also. #7866 *ymendel*
1541
1542 * Document :allow_nil option for validates_acceptance_of since it defaults to true. *tzaharia*
1543
1544 * Update documentation for :dependent declaration so that it explicitly uses the non-deprecated API. *Jack Danger Canty*
1545
1546 * Add documentation caveat about when to use count_by_sql. *fearoffish*
1547
1548 * Enhance documentation for increment_counter and decrement_counter. *fearoffish*
1549
1550 * Provide brief introduction to what optimistic locking is. *fearoffish*
1551
1552 * Add documentation for :encoding option to mysql adapter. *marclove*
1553
1554 * Added short-hand declaration style to migrations (inspiration from Sexy Migrations, http://errtheblog.com/post/2381) [David Heinemeier Hansson]. Example:
1555
1556 create_table "products" do |t|
1557 t.column "shop_id", :integer
1558 t.column "creator_id", :integer
1559 t.column "name", :string, :default => "Untitled"
1560 t.column "value", :string, :default => "Untitled"
1561 t.column "created_at", :datetime
1562 t.column "updated_at", :datetime
1563 end
1564
1565 ...can now be written as:
1566
1567 create_table :products do |t|
1568 t.integer :shop_id, :creator_id
1569 t.string :name, :value, :default => "Untitled"
1570 t.timestamps
1571 end
1572
1573 * 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*
1574
1575 * Improve performance of calling .create on has_many :through associations. *evan*
1576
1577 * Improved cloning performance by relying less on exception raising #8159 *Blaine*
1578
1579 * Added ActiveRecord::Base.inspect to return a column-view like #<Post id:integer, title:string, body:text> *David Heinemeier Hansson*
1580
1581 * Added yielding of Builder instance for ActiveRecord::Base#to_xml calls *David Heinemeier Hansson*
1582
1583 * Small additions and fixes for ActiveRecord documentation. Closes #7342 *Jeremy McAnally*
1584
1585 * Add helpful debugging info to the ActiveRecord::StatementInvalid exception in ActiveRecord::ConnectionAdapters::SqliteAdapter#table_structure. Closes #7925. *court3nay*
1586
1587 * SQLite: binary escaping works with $KCODE='u'. #7862 *tsuka*
1588
1589 * Base#to_xml supports serialized attributes. #7502 *jonathan*
1590
1591 * Base.update_all :order and :limit options. Useful for MySQL updates that must be ordered to avoid violating unique constraints. *Jeremy Kemper*
1592
1593 * 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*
1594
1595 * 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*
1596
1597 * 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*
1598
1599 * 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*
1600
1601 * Allow a polymorphic :source for has_many :through associations. Closes #7143 *protocool*
1602
1603 * Consistent public/protected/private visibility for chained methods. #7813 *Dan Manges*
1604
1605 * Oracle: fix quoted primary keys and datetime overflow. #7798 *Michael Schoen*
1606
1607 * Consistently quote primary key column names. #7763 *toolmantim*
1608
1609 * Fixtures: fix YAML ordered map support. #2665 *Manuel Holtgrewe, nfbuckley*
1610
1611 * DateTimes assume the default timezone. #7764 *Geoff Buesing*
1612
1613 * Sybase: hide timestamp columns since they're inherently read-only. #7716 *Mike Joyce*
1614
1615 * Oracle: overflow Time to DateTime. #7718 *Michael Schoen*
1616
1617 * PostgreSQL: don't use async_exec and async_query with postgres-pr. #7727, #7762 *flowdelic, toolmantim*
1618
1619 * Fix has_many :through << with custom foreign keys. #6466, #7153 *naffis, Rich Collins*
1620
1621 * Test DateTime native type in migrations, including an edge case with dates
1622 during calendar reform. #7649, #7724 [fedot, Geoff Buesing]
1623 * SQLServer: correctly schema-dump tables with no indexes or descending indexes. #7333, #7703 *Jakob Skjerning, Tom Ward*
1624
1625 * SQLServer: recognize real column type as Ruby float. #7057 *sethladd, Tom Ward*
1626
1627 * Added fixtures :all as a way of loading all fixtures in the fixture directory at once #7214 *Manfred Stienstra*
1628
1629 * Added database connection as a yield parameter to ActiveRecord::Base.transaction so you can manually rollback [David Heinemeier Hansson]. Example:
1630
1631 transaction do |transaction|
1632 david.withdrawal(100)
1633 mary.deposit(100)
1634 transaction.rollback! # rolls back the transaction that was otherwise going to be successful
1635 end
1636
1637 * Made increment_counter/decrement_counter play nicely with optimistic locking, and added a more general update_counters method *Jamis Buck*
1638
1639 * 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*
1640 Task.cache { Task.find(1); Task.find(1) } # => 1 query
1641
1642 * 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*
1643
1644 * Oracle: fix lob and text default handling. #7344 *gfriedrich, Michael Schoen*
1645
1646 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
1647
1648 * MySQL: blob and text columns may not have defaults in 5.x. Update fixtures schema for strict mode. #6695 *Dan Kubb*
1649
1650 * 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*
1651
1652 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
1653
1654 * Use Date#to_s(:db) for quoted dates. #7411 *Michael Schoen*
1655
1656 * Don't create instance writer methods for class attributes. Closes #7401 *Rick Olson*
1657
1658 * Docs: validations examples. #7343 *zackchandler*
1659
1660 * Add missing tests ensuring callbacks work with class inheritance. Closes #7339 *sandofsky*
1661
1662 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
1663
1664 * Remove useless code in #attribute_present? since 0 != blank?. Closes #7249 *Josh Susser*
1665
1666 * Fix minor doc typos. Closes #7157 *Josh Susser*
1667
1668 * Fix incorrect usage of #classify when creating the eager loading join statement. Closes #7044 *Josh Susser*
1669
1670 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
1671
1672 * Subclasses of an abstract class work with single-table inheritance. #5704, #7284 *BertG, nick+rails@ag.arizona.edu*
1673
1674 * Make sure sqlite3 driver closes open connections on disconnect *Rob Rasmussen*
1675
1676 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
1677
1678 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
1679
1680 * 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*
1681
1682 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
1683
1684 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
1685
1686 * Apply scoping during initialize instead of create. Fixes setting of foreign key when using find_or_initialize_by with scoping. *Cody Fauser*
1687
1688 * SQLServer: handle [quoted] table names. #6635 *rrich*
1689
1690 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
1691
1692 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
1693
1694 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
1695 Student.find(:all, :conditions => { :grade => 9..12 })
1696
1697 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
1698
1699 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
1700
1701 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
1702
1703 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
1704
1705 * Rollback new_record? and id when an exception is raised in a save callback. #6910 *Ben Curren, outerim*
1706
1707 * Pushing a record on an association collection doesn't unnecessarily load all the associated records. *Obie Fernandez, Jeremy Kemper*
1708
1709 * Oracle: fix connection reset failure. #6846 *leonlleslie*
1710
1711 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
1712
1713 * 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*
1714
1715 * 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*
1716
1717 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
1718
1719 * Add AssociationCollection#create! to be consistent with AssociationCollection#create when dealing with a foreign key that is a protected attribute *Cody Fauser*
1720
1721 * 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*
1722
1723 * Change fixture_path to a class inheritable accessor allowing test cases to have their own custom set of fixtures. #6672 *Zach Dennis*
1724
1725 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
1726
1727 * Simplify query_attribute by typecasting the attribute value and checking whether it's nil, false, zero or blank. #6659 *Jonathan Viney*
1728
1729 * 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*
1730
1731 * Run validations in the order they were declared. #6657 *obrie*
1732
1733 * 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*
1734
1735 * Simplify association proxy implementation by factoring construct_scope out of method_missing. #6643 *martin*
1736
1737 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
1738
1739 * 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*
1740
1741 * Don't inspect unloaded associations. #2905 *lmarlow*
1742
1743 * SQLite: use AUTOINCREMENT primary key in >= 3.1.0. #6588, #6616 *careo, lukfugl*
1744
1745 * Cache inheritance_column. #6592 *Stefan Kaes*
1746
1747 * Firebird: decimal/numeric support. #6408 *macrnic*
1748
1749 * make add_order a tad faster. #6567 *Stefan Kaes*
1750
1751 * Find with :include respects scoped :order. #5850
1752
1753 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
1754 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
1755
1756 * 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*
1757
1758 * SQLite: fix calculations workaround, remove count(distinct) query rewrite, cleanup test connection scripts. *Jeremy Kemper*
1759
1760 * SQLite: count(distinct) queries supported in >= 3.2.6. #6544 *Bob Silva*
1761
1762 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
1763
1764 * Deprecation: object transactions warning. *Jeremy Kemper*
1765
1766 * has_one :dependent => :nullify ignores nil associates. #4848, #6528 *bellis@deepthought.org, janovetz, Jeremy Kemper*
1767
1768 * 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*
1769
1770 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
1771
1772 * Document other options available to migration's add_column. #6419 *grg*
1773
1774 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
1775
1776 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
1777
1778 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
1779
1780 * Restore eager condition interpolation, document it's differences *Rick Olson*
1781
1782 * 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*
1783
1784 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
1785
1786 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
1787
1788 * 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*
1789
1790 * 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*
1791
1792 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
1793
1794 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
1795
1796 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
1797
1798 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
1799
1800 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
1801
1802 * 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*
1803
1804 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
1805
1806 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
1807
1808 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
1809
1810 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
1811
1812 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
1813
1814 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
1815
1816 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
1817
1818 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
1819
1820 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
1821
1822 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
1823
1824 * 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*
1825
1826 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
1827
1828 * Document validates_presences_of behavior with booleans: you probably want validates_inclusion_of :attr, :in => [true, false]. #2253 *Bob Silva*
1829
1830 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
1831
1832 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
1833
1834 * Deprecation: update docs. #5998 *Jakob Skjerning, Kevin Clark*
1835
1836 * Add some XmlSerialization tests for ActiveRecord *Rick Olson*
1837
1838 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
1839
1840 * Tighten rescue clauses. #5985 *james@grayproductions.net*
1841
1842 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
1843
1844 * 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*
1845
1846 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
1847
1848 * 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*
1849
1850 * SQLServer: fix eager association test. #5901 *Tom Ward*
1851
1852 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
1853
1854 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
1855
1856 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
1857
1858 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
1859
1860 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
1861
1862 * 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*
1863
1864 * 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*
1865
1866 # Create a tagging to associate the post and tag.
1867 post.tags << Tag.find_by_name('old')
1868 post.tags.create! :name => 'general'
1869
1870 # Would have been:
1871 post.taggings.create!(:tag => Tag.find_by_name('finally')
1872 transaction do
1873 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
1874 end
1875
1876 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
1877
1878 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
1879
1880 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
1881 Example: Invoice::Lineitem is given table name invoice_lineitems
1882
1883 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
1884 # people_active_last_name_index, people_active_deactivated_at_index
1885 add_index :people, [:active, :last_name]
1886 add_index :people, [:active, :deactivated_at]
1887 remove_index :people, [:active, :last_name]
1888 remove_index :people, [:active, :deactivated_at]
1889
1890 WARNING: backward-incompatibility. Multicolumn indexes created before this
1891 revision were named using the first column name only. Now they're uniquely
1892 named using all indexed columns.
1893
1894 To remove an old multicolumn index, remove_index :table_name, :first_column
1895
1896 * Fix for deep includes on the same association. *richcollins@gmail.com*
1897
1898 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
1899
1900 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
1901
1902 * Document find's :from option. Closes #5762. *andrew@redlinesoftware.com*
1903
1904 * 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*
1905
1906 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
1907
1908 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
1909
1910 * Add documentation for how to disable timestamps on a per model basis. Closes #5684. *matt@mattmargolis.net Marcel Molina Jr.*
1911
1912 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
1913
1914 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
1915
1916 * Formally deprecate the deprecated finders. *Michael Koziarski*
1917
1918 * Formally deprecate rich associations. *Michael Koziarski*
1919
1920 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
1921
1922 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
1923
1924 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
1925
1926 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
1927
1928 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
1929
1930 assert (Topic.exists?(:author_name => "David"))
1931 assert (Topic.exists?(:author_name => "Mary", :approved => true))
1932 assert (Topic.exists?(["parent_id = ?", 1]))
1933
1934 * Schema dumper quotes date :default values. *Dave Thomas*
1935
1936 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
1937
1938 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
1939
1940 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
1941
1942 * Allow #count through a has_many association to accept :include. *Dan Peterson*
1943
1944 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
1945
1946 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
1947
1948 * 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*
1949
1950 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
1951
1952 * Oracle: BigDecimal support. #5667 *Michael Schoen*
1953
1954 * 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*
1955
1956 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
1957
1958 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
1959
1960 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
1961
1962 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
1963
1964 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
1965
1966 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
1967
1968 * 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*
1969
1970 * 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*
1971
1972 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
1973
1974 * Minor tweak to improve performance of ActiveRecord::Base#to_param.
1975
1976 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
1977
1978 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
1979
1980 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
1981
1982 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
1983
1984 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
1985
1986 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
1987
1988 * 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*
1989 # Obtain an exclusive lock on person 1 so we can safely increment visits.
1990 Person.transaction do
1991 # select * from people where id=1 for update
1992 person = Person.find(1, :lock => true)
1993 person.visits += 1
1994 person.save!
1995 end
1996
1997 * 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*
1998
1999 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2000
2001 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2002
2003 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2004
2005 * 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*
2006
2007 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2008
2009 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2010
2011 ...is the same as:
2012 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2013
2014 This makes it easier to pass in the options from a form or otherwise outside.
2015
2016
2017 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2018
2019 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2020
2021 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2022
2023 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2024
2025 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2026
2027 * 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*
2028
2029 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2030
2031 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2032
2033 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2034 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2035 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2036
2037 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2038
2039 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2040
2041 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2042
2043 * Provide Association Extensions access to the instance that the association is being accessed from.
2044 Closes #4433 *Josh Susser*
2045
2046 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2047
2048 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2049
2050 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2051
2052 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2053
2054 * Added :allow_nil option for aggregations #5091 *Ian White*
2055
2056 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2057
2058 * 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*
2059
2060 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2061
2062 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2063
2064 * 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*
2065
2066 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2067
2068 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2069
2070 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2071
2072 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2073
2074 * Replace superfluous name_to_class_name variant with camelize. *Marcel Molina Jr.*
2075
2076 * Replace alias method chaining with Module#alias_method_chain. *Marcel Molina Jr.*
2077
2078 * Replace Ruby's deprecated append_features in favor of included. *Marcel Molina Jr.*
2079
2080 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2081
2082 * Update FrontBase adapter to check binding version. Closes #4920. *mlaster@metavillage.com*
2083
2084 * New Frontbase connections don't start in auto-commit mode. Closes #4922. *mlaster@metavillage.com*
2085
2086 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2087
2088 * Only modify the sequence name in the FrontBase adapter if the FrontBase adapter is actually being used. *Marcel Molina Jr.*
2089
2090 * 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*
2091
2092 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2093
2094 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2095
2096 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2097
2098 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2099
2100 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2101
2102 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2103
2104 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2105
2106 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2107
2108 * Fix bug where calculations with long alias names return null. *Rick Olson*
2109
2110 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2111
2112 @post.tags << @tag # BAD
2113 @post.taggings.create(:tag => @tag) # GOOD
2114
2115 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2116
2117 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2118
2119 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2120
2121 * Properly quote index names in migrations (closes #4764) *John Long*
2122
2123 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2124
2125 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2126
2127 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2128
2129 * DRY up association collection reader method generation. *Marcel Molina Jr.*
2130
2131 * DRY up and tweak style of the validation error object. *Marcel Molina Jr.*
2132
2133 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2134
2135 class Account < ActiveRecord::Base
2136 validates_uniqueness_of :email, :case_sensitive => false
2137 end
2138
2139 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2140
2141 class Account < ActiveRecord::Base
2142 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2143 end
2144
2145 *1.15.3* (March 12th, 2007)
2146
2147 * Allow a polymorphic :source for has_many :through associations. Closes #7143 [protocool]
2148
2149 * Consistently quote primary key column names. #7763 [toolmantim]
2150
2151 * Fixtures: fix YAML ordered map support. #2665 [Manuel Holtgrewe, nfbuckley]
2152
2153 * Fix has_many :through << with custom foreign keys. #6466, #7153 [naffis, Rich Collins]
2154
2155
2156 ## 1.15.2 (February 5th, 2007) ##
2157
2158 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
2159 Student.find(:all, :conditions => { :grade => 9..12 })
2160
2161 * Don't create instance writer methods for class attributes. *Rick Olson*
2162
2163 * 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*
2164
2165 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
2166
2167 * 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*
2168
2169 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
2170
2171 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
2172
2173 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
2174
2175
2176 ## 1.15.1 (January 17th, 2007) ##
2177
2178 * Fix nodoc breaking of adapters
2179
2180
2181 ## 1.15.0 (January 16th, 2007) ##
2182
2183 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
2184
2185 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
2186
2187 * 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*
2188
2189 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
2190
2191 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
2192
2193 * SQLServer: handle [quoted] table names. #6635 *rrich*
2194
2195 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
2196
2197 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
2198
2199 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
2200
2201 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
2202
2203 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
2204
2205 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
2206
2207 * Oracle: fix connection reset failure. #6846 *leonlleslie*
2208
2209 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
2210
2211 * 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*
2212
2213 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
2214
2215 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
2216 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
2217
2218 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
2219
2220 * 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*
2221
2222 * 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*
2223
2224 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
2225
2226 * 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*
2227
2228 * Firebird: decimal/numeric support. #6408 *macrnic*
2229
2230 * Find with :include respects scoped :order. #5850
2231
2232 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
2233
2234 * Deprecation: object transactions warning. *Jeremy Kemper*
2235
2236 * has_one :dependent => :nullify ignores nil associates. #6528 *janovetz, Jeremy Kemper*
2237
2238 * 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*
2239
2240 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
2241
2242 * Document other options available to migration's add_column. #6419 *grg*
2243
2244 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
2245
2246 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
2247
2248 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
2249
2250 * Restore eager condition interpolation, document it's differences *Rick Olson*
2251
2252 * 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*
2253
2254 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
2255
2256 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
2257
2258 * 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*
2259
2260 * 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*
2261
2262 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
2263
2264 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
2265
2266 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
2267
2268 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
2269
2270 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
2271
2272 * 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*
2273
2274 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
2275
2276 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
2277
2278 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
2279
2280 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
2281
2282 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
2283
2284 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
2285
2286 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
2287
2288 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
2289
2290 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
2291
2292 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
2293
2294 * 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*
2295
2296 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
2297
2298 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
2299
2300 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
2301
2302 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
2303
2304 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
2305
2306 * 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*
2307
2308 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
2309
2310 * 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*
2311
2312 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
2313
2314 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
2315
2316 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
2317
2318 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
2319
2320 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
2321
2322 * 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*
2323
2324 * 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*
2325
2326 # Create a tagging to associate the post and tag.
2327 post.tags << Tag.find_by_name('old')
2328 post.tags.create! :name => 'general'
2329
2330 # Would have been:
2331 post.taggings.create!(:tag => Tag.find_by_name('finally')
2332 transaction do
2333 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
2334 end
2335
2336 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
2337
2338 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
2339
2340 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
2341 Example: Invoice::Lineitem is given table name invoice_lineitems
2342
2343 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
2344 # people_active_last_name_index, people_active_deactivated_at_index
2345 add_index :people, [:active, :last_name]
2346 add_index :people, [:active, :deactivated_at]
2347 remove_index :people, [:active, :last_name]
2348 remove_index :people, [:active, :deactivated_at]
2349
2350 WARNING: backward-incompatibility. Multicolumn indexes created before this
2351 revision were named using the first column name only. Now they're uniquely
2352 named using all indexed columns.
2353
2354 To remove an old multicolumn index, remove_index :table_name, :first_column
2355
2356 * Fix for deep includes on the same association. *richcollins@gmail.com*
2357
2358 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
2359
2360 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
2361
2362 * 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*
2363
2364 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2365
2366 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2367
2368 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2369
2370 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2371
2372 * Formally deprecate the deprecated finders. *Michael Koziarski*
2373
2374 * Formally deprecate rich associations. *Michael Koziarski*
2375
2376 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2377
2378 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2379
2380 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2381
2382 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2383
2384 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2385
2386 assert (Topic.exists?(:author_name => "David"))
2387 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2388 assert (Topic.exists?(["parent_id = ?", 1]))
2389
2390 * Schema dumper quotes date :default values. *Dave Thomas*
2391
2392 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2393
2394 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2395
2396 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2397
2398 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2399
2400 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2401
2402 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2403
2404 * 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*
2405
2406 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2407
2408 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2409
2410 * 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*
2411
2412 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2413
2414 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2415
2416 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2417
2418 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2419
2420 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2421
2422 * 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*
2423
2424 * 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*
2425
2426 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2427
2428 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2429
2430 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2431
2432 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2433
2434 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2435
2436 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2437
2438 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2439
2440 * 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*
2441 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2442 Person.transaction do
2443 # select * from people where id=1 for update
2444 person = Person.find(1, :lock => true)
2445 person.visits += 1
2446 person.save!
2447 end
2448
2449 * 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*
2450
2451 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2452
2453 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2454
2455 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2456
2457 * 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*
2458
2459 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2460
2461 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2462
2463 ...is the same as:
2464 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2465
2466 This makes it easier to pass in the options from a form or otherwise outside.
2467
2468
2469 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2470
2471 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2472
2473 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2474
2475 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2476
2477 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2478
2479 * 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*
2480
2481 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2482
2483 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2484
2485 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2486 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2487 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2488
2489 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2490
2491 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2492
2493 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2494
2495 * Provide Association Extensions access to the instance that the association is being accessed from.
2496 Closes #4433 *Josh Susser*
2497
2498 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2499
2500 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2501
2502 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2503
2504 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2505
2506 * Added :allow_nil option for aggregations #5091 *Ian White*
2507
2508 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2509
2510 * 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*
2511
2512 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2513
2514 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2515
2516 * 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*
2517
2518 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2519
2520 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2521
2522 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2523
2524 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2525
2526 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2527
2528 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2529
2530 * 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*
2531
2532 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2533
2534 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2535
2536 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2537
2538 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2539
2540 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2541
2542 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2543
2544 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2545
2546 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2547
2548 * Fix bug where calculations with long alias names return null. *Rick Olson*
2549
2550 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2551
2552 @post.tags << @tag # BAD
2553 @post.taggings.create(:tag => @tag) # GOOD
2554
2555 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2556
2557 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2558
2559 * Properly quote index names in migrations (closes #4764) *John Long*
2560
2561 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2562
2563 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2564
2565 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2566
2567 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2568
2569 class Account < ActiveRecord::Base
2570 validates_uniqueness_of :email, :case_sensitive => false
2571 end
2572
2573 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2574
2575 class Account < ActiveRecord::Base
2576 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2577 end
2578
2579
2580 ## 1.14.4 (August 8th, 2006) ##
2581
2582 * Add warning about the proper way to validate the presence of a foreign key. #4147 *Francois Beausoleil <francois.beausoleil@gmail.com>*
2583
2584 * Fix syntax error in documentation. #4679 *Mislav Marohnić*
2585
2586 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2587
2588
2589 ## 1.14.3 (June 27th, 2006) ##
2590
2591 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2592
2593 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
2594
2595 * Properly quote index names in migrations (closes #4764) *John Long*
2596
2597 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2598
2599 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2600
2601
2602 ## 1.14.2 (April 9th, 2006) ##
2603
2604 * Fixed calculations for the Oracle Adapter (closes #4626) *Michael Schoen*
2605
2606
2607 ## 1.14.1 (April 6th, 2006) ##
2608
2609 * Fix type_name_with_module to handle type names that begin with '::'. Closes #4614. *Nicholas Seckar*
2610
2611 * Fixed that that multiparameter assignment doesn't work with aggregations (closes #4620) *Lars Pind*
2612
2613 * Enable Limit/Offset in Calculations (closes #4558) *lmarlow*
2614
2615 * Fixed that loading including associations returns all results if Load IDs For Limited Eager Loading returns none (closes #4528) *Rick Olson*
2616
2617 * Fixed HasManyAssociation#find bugs when :finder_sql is set #4600 *lagroue@free.fr*
2618
2619 * Allow AR::Base#respond_to? to behave when @attributes is nil *Ryan Davis*
2620
2621 * Support eager includes when going through a polymorphic has_many association. *Rick Olson*
2622
2623 * Added support for eagerly including polymorphic has_one associations. (closes #4525) *Rick Olson*
2624
2625 class Post < ActiveRecord::Base
2626 has_one :tagging, :as => :taggable
2627 end
2628
2629 Post.find :all, :include => :tagging
2630
2631 * Added descriptive error messages for invalid has_many :through associations: going through :has_one or :has_and_belongs_to_many *Rick Olson*
2632
2633 * Added support for going through a polymorphic has_many association: (closes #4401) *Rick Olson*
2634
2635 class PhotoCollection < ActiveRecord::Base
2636 has_many :photos, :as => :photographic
2637 belongs_to :firm
2638 end
2639
2640 class Firm < ActiveRecord::Base
2641 has_many :photo_collections
2642 has_many :photos, :through => :photo_collections
2643 end
2644
2645 * Multiple fixes and optimizations in PostgreSQL adapter, allowing ruby-postgres gem to work properly. *ruben.nine@gmail.com*
2646
2647 * Fixed that AssociationCollection#delete_all should work even if the records of the association are not loaded yet. *Florian Weber*
2648
2649 * Changed those private ActiveRecord methods to take optional third argument :auto instead of nil for performance optimizations. (closes #4456) *Stefan*
2650
2651 * Private ActiveRecord methods add_limit!, add_joins!, and add_conditions! take an OPTIONAL third argument 'scope' (closes #4456) *Rick Olson*
2652
2653 * DEPRECATED: Using additional attributes on has_and_belongs_to_many associations. Instead upgrade your association to be a real join model *David Heinemeier Hansson*
2654
2655 * 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*
2656
2657 * 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.*
2658
2659 * Fixed broken OCIAdapter #4457 *Michael Schoen*
2660
2661
2662 ## 1.14.0 (March 27th, 2006) ##
2663
2664 * Replace 'rescue Object' with a finer grained rescue. Closes #4431. *Nicholas Seckar*
2665
2666 * Fixed eager loading so that an aliased table cannot clash with a has_and_belongs_to_many join table *Rick Olson*
2667
2668 * Add support for :include to with_scope *andrew@redlinesoftware.com*
2669
2670 * Support the use of public synonyms with the Oracle adapter; required ruby-oci8 v0.1.14 #4390 *Michael Schoen*
2671
2672 * Change periods (.) in table aliases to _'s. Closes #4251 *jeff@ministrycentered.com*
2673
2674 * Changed has_and_belongs_to_many join to INNER JOIN for Mysql 3.23.x. Closes #4348 *Rick Olson*
2675