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281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
1 ## Rails 3.2.0 (unreleased) ##
2
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
3 * Deprecated:
4
5 * `set_table_name`
6 * `set_inheritance_column`
7af719e @jonleighton Deprecate set_sequence_name in favour of self.sequence_name=
jonleighton authored
7 * `set_sequence_name`
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
8
9 Use an assignment method instead. For example, instead of `set_table_name`, use `self.table_name=`:
0b72a04 @jonleighton Deprecate set_table_name in favour of self.table_name= or defining yo…
jonleighton authored
10
11 class Project < ActiveRecord::Base
12 self.table_name = "project"
13 end
14
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
15 Or define your own `self.table_name` method:
16
0b72a04 @jonleighton Deprecate set_table_name in favour of self.table_name= or defining yo…
jonleighton authored
17 class Post < ActiveRecord::Base
18 def self.table_name
19 "special_" + super
20 end
21 end
22 Post.table_name # => "special_posts"
23
24 *Jon Leighton*
25
10834e9 @joshsusser changelog & docs for GeneratedFeatureMethods
joshsusser authored
26 * Generated association methods are created within a separate module to allow overriding and
27 composition using `super`. For a class named `MyModel`, the module is named
28 `MyModel::GeneratedFeatureMethods`. It is included into the model class immediately after
29 the `generated_attributes_methods` module defined in ActiveModel, so association methods
30 override attribute methods of the same name. *Josh Susser*
31
e7b7b44 @fxn implements AR::Relation#explain
fxn authored
32 * Implemented ActiveRecord::Relation#explain. *fxn*
33
562583c @jonleighton Add ActiveRecord::Relation#uniq for toggling DISTINCT in the SQL query
jonleighton authored
34 * Add ActiveRecord::Relation#uniq for generating unique queries.
35
36 Before:
37
38 Client.select('DISTINCT name')
39
40 After:
41
42 Client.select(:name).uniq
43
44 This also allows you to revert the unqueness in a relation:
45
46 Client.select(:name).uniq.uniq(false)
47
48 *Jon Leighton*
49
69dcd45 @vjebelev AR changes to support creating ordered (asc, desc) indexes
vjebelev authored
50 * Support index sort order in sqlite, mysql and postgres adapters. *Vlad Jebelev*
51
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
52 * Allow the :class_name option for associations to take a symbol (:Client) in addition to
53 a string ('Client').
54
55 This is to avoid confusing newbies, and to be consistent with the fact that other options
56 like :foreign_key already allow a symbol or a string.
57
58 *Jon Leighton*
59
60 * In development mode the db:drop task also drops the test database. For symmetry with
61 the db:create task. *Dmitriy Kiriyenko*
62
63 * Added ActiveRecord::Base.store for declaring simple single-column key/value stores *DHH*
64
65 class User < ActiveRecord::Base
66 store :settings, accessors: [ :color, :homepage ]
67 end
68
69 u = User.new(color: 'black', homepage: '37signals.com')
70 u.color # Accessor stored attribute
71 u.settings[:country] = 'Denmark' # Any attribute, even if not specified with an accessor
72
73
74 * MySQL: case-insensitive uniqueness validation avoids calling LOWER when
75 the column already uses a case-insensitive collation. Fixes #561.
76
77 *Joseph Palermo*
78
79 * Transactional fixtures enlist all active database connections. You can test
80 models on different connections without disabling transactional fixtures.
81
82 *Jeremy Kemper*
83
84 * Add first_or_create, first_or_create!, first_or_initialize methods to Active Record. This is a
85 better approach over the old find_or_create_by dynamic methods because it's clearer which
86 arguments are used to find the record and which are used to create it:
87
88 User.where(:first_name => "Scarlett").first_or_create!(:last_name => "Johansson")
89
90 *Andrés Mejía*
91
92 * Fix nested attributes bug where _destroy parameter is taken into account
93 during :reject_if => :all_blank (fixes #2937)
94
95 *Aaron Christy*
96
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
97 ## Rails 3.1.3 (unreleased) ##
98
fec85cf @jonleighton Perf fix
jonleighton authored
99 * Perf fix: If we're deleting all records in an association, don't add a IN(..) clause
100 to the query. *GH 3672*
101
102 *Jon Leighton*
103
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
104 * Fix bug with referencing other mysql databases in set_table_name. *GH 3690*
105
2ef4947 @jonleighton Add missing CHANGELOG entry for #3678. Closes #3678.
jonleighton authored
106 * Fix performance bug with mysql databases on a server with lots of other databses. *GH 3678*
107
108 *Christos Zisopoulos and Kenny J*
109
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
110 ## Rails 3.1.2 (unreleased) ##
111
da02f79 @jonleighton Sync CHANGELOGs from 3-1-stable
jonleighton authored
112 * Fix bug with PostgreSQLAdapter#indexes. When the search path has multiple schemas, spaces
113 were not being stripped from the schema names after the first.
114
115 *Sean Kirby*
116
117 * Preserve SELECT columns on the COUNT for finder_sql when possible. *GH 3503*
118
119 *Justin Mazzi*
120
121 * Reset prepared statement cache when schema changes impact statement results. *GH 3335*
122
123 *Aaron Patterson*
124
125 * Postgres: Do not attempt to deallocate a statement if the connection is no longer active.
126
127 *Ian Leitch*
128
129 * Prevent QueryCache leaking database connections. *GH 3243*
130
131 *Mark J. Titorenko*
132
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
133 * Fix bug where building the conditions of a nested through association could potentially
134 modify the conditions of the through and/or source association. If you have experienced
135 bugs with conditions appearing in the wrong queries when using nested through associations,
136 this probably solves your problems. *GH #3271*
137
138 *Jon Leighton*
139
140 * If a record is removed from a has_many :through, all of the join records relating to that
141 record should also be removed from the through association's target.
142
143 *Jon Leighton*
144
145 * Fix adding multiple instances of the same record to a has_many :through. *GH #3425*
146
147 *Jon Leighton*
148
149 * Fix creating records in a through association with a polymorphic source type. *GH #3247*
150
151 *Jon Leighton*
152
fb0bf3c @kennyj Fixed an issue id false option is ignored on mysql/mysql2 (fix #3440)
kennyj authored
153 * MySQL: use the information_schema than the describe command when we look for a primary key. *GH #3440*
154
155 *Kenny J*
156
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
157 ## Rails 3.1.1 (October 7, 2011) ##
158
159 * Add deprecation for the preload_associations method. Fixes #3022.
160
161 *Jon Leighton*
162
163 * Don't require a DB connection when loading a model that uses set_primary_key. GH #2807.
164
165 *Jon Leighton*
166
167 * Fix using select() with a habtm association, e.g. Person.friends.select(:name). GH #3030 and
168 \#2923.
169
170 *Hendy Tanata*
171
172 * Fix belongs_to polymorphic with custom primary key on target. GH #3104.
173
174 *Jon Leighton*
175
176 * CollectionProxy#replace should change the DB records rather than just mutating the array.
177 Fixes #3020.
178
179 *Jon Leighton*
180
181 * LRU cache in mysql and sqlite are now per-process caches.
182
183 * lib/active_record/connection_adapters/mysql_adapter.rb: LRU cache keys are per process id.
184 * lib/active_record/connection_adapters/sqlite_adapter.rb: ditto
185 *Aaron Patterson*
186
187 * Support bulk change_table in mysql2 adapter, as well as the mysql one. *Jon Leighton*
188
189 * If multiple parameters are sent representing a date, and some are blank, the
190 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]
191 * ActiveRecord::Base.establish_connection now takes a string that contains
192 a URI that specifies the connection configuration. For example:
193 ActiveRecord::Base.establish_connection 'postgres://localhost/foo'
194
195 * 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.
196
197 So if you were doing this and expecting the second argument to be nil:
198
199 User.find_by_username_and_group("sikachu")
200
201 You'll now get `ArgumentError: wrong number of arguments (1 for 2).` You'll then have to do this:
202
203 User.find_by_username_and_group("sikachu", nil)
204
205 *Prem Sichanugrist*
206
207
208 ## Rails 3.1.0 (August 30, 2011) ##
209
210 * Add a proxy_association method to association proxies, which can be called by association
211 extensions to access information about the association. This replaces proxy_owner etc with
212 proxy_association.owner.
213
214 *Jon Leighton*
215
216 * ActiveRecord::MacroReflection::AssociationReflection#build_record has a new method signature.
217
218 Before: def build_association(*options)
219 After: def build_association(*options, &block)
220
221 Users who are redefining this method to extend functionality should ensure that the block is
222 passed through to ActiveRecord::Base#new.
223
224 This change is necessary to fix https://github.com/rails/rails/issues/1842.
225
226 *Jon Leighton*
227
228 * AR#pluralize_table_names can be used to singularize/pluralize table name of an individual model:
229
230 class User < ActiveRecord::Base
231 self.pluralize_table_names = false
232 end
233
234 Previously this could only be set globally for all models through ActiveRecord::Base.pluralize_table_names. *Guillermo Iguaran*
235
236 * Add block setting of attributes to singular associations:
237
238 class User < ActiveRecord::Base
239 has_one :account
240 end
241
242 user.build_account{ |a| a.credit_limit => 100.0 }
243
244 The block is called after the instance has been initialized. *Andrew White*
245
246 * 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*
247
248 * CSV Fixtures are deprecated and support will be removed in Rails 3.2.0
249
250 * AR#new, AR#create, AR#create!, AR#update_attributes and AR#update_attributes! all accept a second hash as option that allows you
251 to specify which role to consider when assigning attributes. This is built on top of ActiveModel's
252 new mass assignment capabilities:
253
254 class Post < ActiveRecord::Base
255 attr_accessible :title
256 attr_accessible :title, :published_at, :as => :admin
257 end
258
259 Post.new(params[:post], :as => :admin)
260
261 assign_attributes() with similar API was also added and attributes=(params, guard) was deprecated.
262
263 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.
264
265 *Josh Kalderimis*
266
267 * default_scope can take a block, lambda, or any other object which responds to `call` for lazy
268 evaluation:
269
270 default_scope { ... }
271 default_scope lambda { ... }
272 default_scope method(:foo)
273
274 This feature was originally implemented by Tim Morgan, but was then removed in favour of
275 defining a 'default_scope' class method, but has now been added back in by Jon Leighton.
276 The relevant lighthouse ticket is #1812.
277
278 * Default scopes are now evaluated at the latest possible moment, to avoid problems where
279 scopes would be created which would implicitly contain the default scope, which would then
280 be impossible to get rid of via Model.unscoped.
281
282 Note that this means that if you are inspecting the internal structure of an
283 ActiveRecord::Relation, it will *not* contain the default scope, though the resulting
284 query will do. You can get a relation containing the default scope by calling
285 ActiveRecord#with_default_scope, though this is not part of the public API.
286
287 *Jon Leighton*
288
289 * If you wish to merge default scopes in special ways, it is recommended to define your default
290 scope as a class method and use the standard techniques for sharing code (inheritance, mixins,
291 etc.):
292
293 class Post < ActiveRecord::Base
294 def self.default_scope
295 where(:published => true).where(:hidden => false)
296 end
297 end
298
299 *Jon Leighton*
300
301 * PostgreSQL adapter only supports PostgreSQL version 8.2 and higher.
302
303 * ConnectionManagement middleware is changed to clean up the connection pool
304 after the rack body has been flushed.
305
306 * Added an update_column method on ActiveRecord. This new method updates a given attribute on an object, skipping validations and callbacks.
307 It is recommended to use #update_attribute unless you are sure you do not want to execute any callback, including the modification of
308 the updated_at column. It should not be called on new records.
309 Example:
310
311 User.first.update_column(:name, "sebastian") # => true
312
313 *Sebastian Martinez*
314
315 * Associations with a :through option can now use *any* association as the
316 through or source association, including other associations which have a
317 :through option and has_and_belongs_to_many associations
318
319 *Jon Leighton*
320
321 * The configuration for the current database connection is now accessible via
322 ActiveRecord::Base.connection_config. *fxn*
323
324 * limits and offsets are removed from COUNT queries unless both are supplied.
325 For example:
326
327 People.limit(1).count # => 'SELECT COUNT(*) FROM people'
328 People.offset(1).count # => 'SELECT COUNT(*) FROM people'
329 People.limit(1).offset(1).count # => 'SELECT COUNT(*) FROM people LIMIT 1 OFFSET 1'
330
331 *lighthouse #6262*
332
333 * ActiveRecord::Associations::AssociationProxy has been split. There is now an Association class
334 (and subclasses) which are responsible for operating on associations, and then a separate,
335 thin wrapper called CollectionProxy, which proxies collection associations.
336
337 This prevents namespace pollution, separates concerns, and will allow further refactorings.
338
339 Singular associations (has_one, belongs_to) no longer have a proxy at all. They simply return
340 the associated record or nil. This means that you should not use undocumented methods such
341 as bob.mother.create - use bob.create_mother instead.
342
343 *Jon Leighton*
344
345 * Make has_many :through associations work correctly when you build a record and then save it. This
346 requires you to set the :inverse_of option on the source reflection on the join model, like so:
347
348 class Post < ActiveRecord::Base
349 has_many :taggings
350 has_many :tags, :through => :taggings
351 end
352
353 class Tagging < ActiveRecord::Base
354 belongs_to :post
355 belongs_to :tag, :inverse_of => :tagging # :inverse_of must be set!
356 end
357
358 class Tag < ActiveRecord::Base
359 has_many :taggings
360 has_many :posts, :through => :taggings
361 end
362
363 post = Post.first
364 tag = post.tags.build :name => "ruby"
365 tag.save # will save a Taggable linking to the post
366
367 *Jon Leighton*
368
369 * Support the :dependent option on has_many :through associations. For historical and practical
370 reasons, :delete_all is the default deletion strategy employed by association.delete(*records),
371 despite the fact that the default strategy is :nullify for regular has_many. Also, this only
372 works at all if the source reflection is a belongs_to. For other situations, you should directly
373 modify the through association.
374
375 *Jon Leighton*
376
377 * Changed the behaviour of association.destroy for has_and_belongs_to_many and has_many :through.
378 From now on, 'destroy' or 'delete' on an association will be taken to mean 'get rid of the link',
379 not (necessarily) 'get rid of the associated records'.
380
381 Previously, has_and_belongs_to_many.destroy(*records) would destroy the records themselves. It
382 would not delete any records in the join table. Now, it deletes the records in the join table.
383
384 Previously, has_many_through.destroy(*records) would destroy the records themselves, and the
385 records in the join table. [Note: This has not always been the case; previous version of Rails
386 only deleted the records themselves.] Now, it destroys only the records in the join table.
387
388 Note that this change is backwards-incompatible to an extent, but there is unfortunately no
389 way to 'deprecate' it before changing it. The change is being made in order to have
390 consistency as to the meaning of 'destroy' or 'delete' across the different types of associations.
391
392 If you wish to destroy the records themselves, you can do records.association.each(&:destroy)
393
394 *Jon Leighton*
395
396 * 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*
397
398 Example:
399
400 change_table(:users, :bulk => true) do |t|
401 t.string :company_name
402 t.change :birthdate, :datetime
403 end
404
405 This will now result in:
406
407 ALTER TABLE `users` ADD COLUMN `company_name` varchar(255), CHANGE `updated_at` `updated_at` datetime DEFAULT NULL
408
409 * Removed support for accessing attributes on a has_and_belongs_to_many join table. This has been
410 documented as deprecated behaviour since April 2006. Please use has_many :through instead.
411 *Jon Leighton*
412
413 * Added a create_association! method for has_one and belongs_to associations. *Jon Leighton*
414
415 * Migration files generated from model and constructive migration generators
416 (for example, add_name_to_users) use the reversible migration's `change`
417 method instead of the ordinary `up` and `down` methods. *Prem Sichanugrist*
418
419 * Removed support for interpolating string SQL conditions on associations. Instead, you should
420 use a proc, like so:
421
422 Before:
423
424 has_many :things, :conditions => 'foo = #{bar}'
425
426 After:
427
428 has_many :things, :conditions => proc { "foo = #{bar}" }
429
430 Inside the proc, 'self' is the object which is the owner of the association, unless you are
431 eager loading the association, in which case 'self' is the class which the association is within.
432
433 You can have any "normal" conditions inside the proc, so the following will work too:
434
435 has_many :things, :conditions => proc { ["foo = ?", bar] }
436
437 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
438 'record' to get the record being inserted or deleted. This is now passed as an argument to
439 the proc.
440
441 * Added ActiveRecord::Base#has_secure_password (via ActiveModel::SecurePassword) to encapsulate dead-simple password usage with BCrypt encryption and salting [DHH]. Example:
442
443 # Schema: User(name:string, password_digest:string, password_salt:string)
444 class User < ActiveRecord::Base
445 has_secure_password
446 end
447
448 user = User.new(:name => "david", :password => "", :password_confirmation => "nomatch")
449 user.save # => false, password required
450 user.password = "mUc3m00RsqyRe"
451 user.save # => false, confirmation doesn't match
452 user.password_confirmation = "mUc3m00RsqyRe"
453 user.save # => true
454 user.authenticate("notright") # => false
455 user.authenticate("mUc3m00RsqyRe") # => user
456 User.find_by_name("david").try(:authenticate, "notright") # => nil
457 User.find_by_name("david").try(:authenticate, "mUc3m00RsqyRe") # => user
458
459
460 * When a model is generated add_index is added by default for belongs_to or references columns
461
462 rails g model post user:belongs_to will generate the following:
463
464 class CreatePosts < ActiveRecord::Migration
465 def up
466 create_table :posts do |t|
467 t.belongs_to :user
468 t.timestamps
469 end
470
471 add_index :posts, :user_id
472 end
473
474 def down
475 drop_table :posts
476 end
477 end
478
479 *Santiago Pastorino*
480
481 * Setting the id of a belongs_to object will update the reference to the
482 object. [#2989 state:resolved]
483 * ActiveRecord::Base#dup and ActiveRecord::Base#clone semantics have changed
484 to closer match normal Ruby dup and clone semantics.
485 * Calling ActiveRecord::Base#clone will result in a shallow copy of the record,
486 including copying the frozen state. No callbacks will be called.
487 * Calling ActiveRecord::Base#dup will duplicate the record, including calling
488 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.
489 * Migrations can be defined as reversible, meaning that the migration system
490 will figure out how to reverse your migration. To use reversible migrations, just define the "change" method. For example:
491 class MyMigration < ActiveRecord::Migration
492 def change
493 create_table(:horses) do
494 t.column :content, :text
495 t.column :remind_at, :datetime
496 end
497 end
498 end
499
500 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.
501 * Migrations should use instance methods rather than class methods:
502 class FooMigration < ActiveRecord::Migration
503 def up
504 ...
505 end
506 end
507
508 *Aaron Patterson*
509
510 * has_one maintains the association with separate after_create/after_update instead
511 of a single after_save. *fxn*
512
513 * The following code:
514
515 Model.limit(10).scoping { Model.count }
516
517 now generates the following SQL:
518
519 SELECT COUNT(*) FROM models LIMIT 10
520
521 This may not return what you want. Instead, you may with to do something
522 like this:
523
524 Model.limit(10).scoping { Model.all.size }
525
526 *Aaron Patterson*
527
528
529 ## Rails 3.0.7 (April 18, 2011) ##
530
531 * Destroying records via nested attributes works independent of reject_if LH #6006 *Durran Jordan*
532
533 * Delegate any? and many? to Model.scoped for consistency *Andrew White*
534
535 * Quote the ORDER BY clause in batched finds - fixes #6620 *Andrew White*
536
537 * Change exists? so records are not instantiated - fixes #6127. This prevents after_find
538 and after_initialize callbacks being triggered when checking for record existence.
539 *Andrew White*
540
541 * Fix performance bug with attribute accessors which only occurred on Ruby 1.8.7, and ensure we
542 cache type-casted values when the column returned from the db contains non-standard chars.
543 *Jon Leighton*
544
545 * Fix a performance regression introduced here 86acbf1cc050c8fa8c74a10c735e467fb6fd7df8
546 related to read_attribute method *Stian Grytøyr*
547
548
549 ## Rails 3.0.6 (April 5, 2011) ##
550
551 * Un-deprecate reorder method *Sebastian Martinez*
552
553 * Extensions are applied when calling +except+ or +only+ on relations.
554 Thanks to Iain Hecker.
555
556 * Schemas set in set_table_name are respected by the mysql adapter. LH #5322
557
558 * Fixed a bug when empty? was called on a grouped Relation that wasn't loaded.
559 LH #5829
560
561 * Reapply extensions when using except and only. Thanks Iain Hecker.
562
563 * Binary data is escaped when being inserted to SQLite3 Databases. Thanks
564 Naruse!
565
566
567 ## Rails 3.0.5 (February 26, 2011) ##
568
569 * Model.where(:column => 1).where(:column => 2) will always produce an AND
570 query.
571 *Aaron Patterson*
572
573 * Deprecated support for interpolated association conditions in the form of :conditions => 'foo = #{bar}'.
574
575 Instead, you should use a proc, like so:
576
577 Before:
578
579 has_many :things, :conditions => 'foo = #{bar}'
580
581 After:
582
583 has_many :things, :conditions => proc { "foo = #{bar}" }
584
585 Inside the proc, 'self' is the object which is the owner of the association, unless you are
586 eager loading the association, in which case 'self' is the class which the association is within.
587
588 You can have any "normal" conditions inside the proc, so the following will work too:
589
590 has_many :things, :conditions => proc { ["foo = ?", bar] }
591
592 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
593 'record' to get the record being inserted or deleted. This is now passed as an argument to
594 the proc.
595
596 *Jon Leighton*
597
598
599 ## Rails 3.0.4 (February 8, 2011) ##
600
601 * Added deprecation warning for has_and_belongs_to_many associations where the join table has
602 additional attributes other than the keys. Access to these attributes is removed in 3.1.
603 Please use has_many :through instead. *Jon Leighton*
604
605
606 ## Rails 3.0.3 (November 16, 2010) ##
607
608 * Support find by class like this: Post.where(:name => Post)
609
610
611 ## Rails 3.0.2 (November 15, 2010) ##
612
613 * Dramatic speed increase (see: http://engineering.attinteractive.com/2010/10/arel-two-point-ohhhhh-yaaaaaa/) *Aaron Patterson*
614
615 * reorder is deprecated in favor of except(:order).order(...) *Santiago Pastorino*
616
617 * except is now AR public API
618
619 Model.order('name').except(:order).order('salary')
620
621 generates:
622
623 SELECT * FROM models ORDER BY salary
624
625 *Santiago Pastorino*
626
627 * The following code:
628
629 Model.limit(10).scoping { Model.count }
630
631 now generates the following SQL:
632
633 SELECT COUNT(*) FROM models LIMIT 10
634
635 This may not return what you want. Instead, you may with to do something
636 like this:
637
638 Model.limit(10).scoping { Model.all.size }
639
640 *Aaron Patterson*
641
642
643 ## Rails 3.0.1 (October 15, 2010) ##
644
645 * Introduce a fix for CVE-2010-3993
646
647
648 ## Rails 3.0.0 (August 29, 2010) ##
649
650 * Changed update_attribute to not run callbacks and update the record directly in the database *Neeraj Singh*
651
652 * Add scoping and unscoped as the syntax to replace the old with_scope and with_exclusive_scope *José Valim*
653
654 * New rake task, db:migrate:status, displays status of migrations #4947 *Kevin Skoglund*
655
656 * select and order for ActiveRecord now always concatenate nested calls. Use reorder if you want the original order to be overwritten *Santiago Pastorino*
657
658 * PostgreSQL: ensure the database time zone matches Ruby's time zone #4895 *Aaron Patterson*
659
660 * Fixed that ActiveRecord::Base.compute_type would swallow NoMethodError #4751 *Andrew Bloomgarden, Andrew White*
661
662 * Add index length support for MySQL. #1852 *Emili Parreno, Pratik Naik*
663
664 Example:
665
666 add_index(:accounts, :name, :name => 'by_name', :length => 10)
667 => CREATE INDEX by_name ON accounts(name(10))
668
669 add_index(:accounts, [:name, :surname], :name => 'by_name_surname', :length => {:name => 10, :surname => 15})
670 => CREATE INDEX by_name_surname ON accounts(name(10), surname(15))
671
672 * find_or_create_by_attr(value, ...) works when attr is protected. #4457 *Santiago Pastorino, Marc-André Lafortune*
673
674 * New callbacks: after_commit and after_rollback. Do expensive operations like image thumbnailing after_commit instead of after_save. #2991 *Brian Durand*
675
676 * 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*
677
678 * 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*
679
680 * PostgreSQL: drop support for old postgres driver. Use pg 0.9.0 or later. *Jeremy Kemper*
681
682 * Observers can prevent records from saving by returning false, just like before_save and friends. #4087 *Mislav Marohnić*
683
684 * Add Relation extensions. *Pratik Naik*
685
686 users = User.where(:admin => true).extending(User::AdminPowers)
687
688 latest_users = User.order('created_at DESC') do
689 def posts_count
690 Post.count(:user_id => to_a.map(&:id))
691 end
692 end
693
694 * To prefix the table names of all models in a module, define self.table_name_prefix on the module. #4032 *Andrew White*
695
696 * 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*
697
698 * 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*
699
700 * Allow relations to be used as scope.
701
702 class Item
703 scope :red, where(:colour => 'red')
704 end
705
706 Item.red.limit(10) # Ten red items
707
708 * Rename named_scope to scope. *Pratik Naik*
709
710 * Changed ActiveRecord::Base.store_full_sti_class to be true by default reflecting the previously announced Rails 3 default *DHH*
711
712 * Add Relation#except. *Pratik Naik*
713
714 one_red_item = Item.where(:colour => 'red').limit(1)
715 all_items = one_red_item.except(:where, :limit)
716
717 * Add Relation#delete_all. *Pratik Naik*
718
719 Item.where(:colour => 'red').delete_all
720
721 * Add Model.having and Relation#having. *Pratik Naik*
722
723 Developer.group("salary").having("sum(salary) > 10000").select("salary")
724
725 * Add Relation#count. *Pratik Naik*
726
727 legends = People.where("age > 100")
728 legends.count
729 legends.count(:age, :distinct => true)
730 legends.select('id').count
731
732 * Add Model.readonly and association_collection#readonly finder method. *Pratik Naik*
733
734 Post.readonly.to_a # Load all posts in readonly mode
735 @user.items.readonly(false).to_a # Load all the user items in writable mode
736
737 * Add .lock finder method *Pratik Naik*
738
739 User.lock.where(:name => 'lifo').to_a
740
741 old_items = Item.where("age > 100")
742 old_items.lock.each {|i| .. }
743
744 * Add Model.from and association_collection#from finder methods *Pratik Naik*
745
746 user = User.scoped
747 user.select('*').from('users, items')
748
749 * Add relation.destroy_all *Pratik Naik*
750
751 old_items = Item.where("age > 100")
752 old_items.destroy_all
753
754 * Add relation.exists? *Pratik Naik*
755
756 red_items = Item.where(:colours => 'red')
757 red_items.exists?
758 red_items.exists?(1)
759
760 * Add find(ids) to relations. *Pratik Naik*
761
762 old_users = User.order("age DESC")
763 old_users.find(1)
764 old_users.find(1, 2, 3)
765
766 * Add new finder methods to association collection. *Pratik Naik*
767
768 class User < ActiveRecord::Base
769 has_many :items
770 end
771
772 user = User.first
773 user.items.where(:items => {:colour => 'red'})
774 user.items.select('items.id')
775
776 * Add relation.reload to force reloading the records. *Pratik Naik*
777
778 topics = Topic.scoped
779 topics.to_a # force load
780 topics.first # returns a cached record
781 topics.reload
782 topics.first # Fetches a new record from the database
783
784 * Rename Model.conditions and relation.conditions to .where. *Pratik Naik*
785
786 Before :
787 User.conditions(:name => 'lifo')
788 User.select('id').conditions(["age > ?", 21])
789
790 Now :
791 User.where(:name => 'lifo')
792 User.select('id').where(["age > ?", 21])
793
794 * Add Model.select/group/order/limit/joins/conditions/preload/eager_load class methods returning a lazy relation. *Pratik Naik*
795
796 Examples :
797
798 posts = Post.select('id).order('name') # Returns a lazy relation
799 posts.each {|p| puts p.id } # Fires "select id from posts order by name"
800
801 * Model.scoped now returns a relation if invoked without any arguments. *Pratik Naik*
802
803 Example :
804
805 posts = Post.scoped
806 posts.size # Fires "select count(*) from posts" and returns the count
807 posts.each {|p| puts p.name } # Fires "select * from posts" and loads post objects
808
809 * Association inverses for belongs_to, has_one, and has_many. Optimization to reduce database queries. #3533 *Murray Steele*
810
811 # post.comments sets each comment's post without needing to :include
812 class Post < ActiveRecord::Base
813 has_many :comments, :inverse_of => :post
814 end
815
816 * MySQL: add_ and change_column support positioning. #3286 *Ben Marini*
817
818 * Reset your Active Record counter caches with the reset_counter_cache class method. #1211 *Mike Breen, Gabe da Silveira*
819
820 * Remove support for SQLite 2. Please upgrade to SQLite 3+ or install the plugin from git://github.com/rails/sqlite2_adapter.git *Pratik Naik*
821
822 * PostgreSQL: XML datatype support. #1874 *Leonardo Borges*
823
824 * 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*
825
826 * SQLite: drop support for 'dbfile' option in favor of 'database.' #2363 *Paul Hinze, Jeremy Kemper*
827
828 * Added :primary_key option to belongs_to associations. #765 *Szymon Nowak, Philip Hallstrom, Noel Rocha*
829 # employees.company_name references companies.name
830 Employee.belongs_to :company, :primary_key => 'name', :foreign_key => 'company_name'
831
832 * Implement #many? for NamedScope and AssociationCollection using #size. #1500 *Chris Kampmeier*
833
834 * Added :touch option to belongs_to associations that will touch the parent record when the current record is saved or destroyed *DHH*
835
836 * Added ActiveRecord::Base#touch to update the updated_at/on attributes (or another specified timestamp) with the current time *DHH*
837
838
839 ## 2.3.2 Final (March 15, 2009) ##
840
841 * Added ActiveRecord::Base.find_each and ActiveRecord::Base.find_in_batches for batch processing *DHH/Jamis Buck*
842
843 * Added that ActiveRecord::Base.exists? can be called with no arguments #1817 *Scott Taylor*
844
845 * Add Support for updating deeply nested models from a single form. #1202 *Eloy Duran*
846
847 class Book < ActiveRecord::Base
848 has_one :author
849 has_many :pages
850
851 accepts_nested_attributes_for :author, :pages
852 end
853
854 * Make after_save callbacks fire only if the record was successfully saved. #1735 *Michael Lovitt*
855
856 Previously the callbacks would fire if a before_save cancelled saving.
857
858 * Support nested transactions using database savepoints. #383 *Jonathan Viney, Hongli Lai*
859
860 * Added dynamic scopes ala dynamic finders #1648 *Yaroslav Markin*
861
862 * Fixed that ActiveRecord::Base#new_record? should return false (not nil) for existing records #1219 *Yaroslav Markin*
863
864 * I18n the word separator for error messages. Introduces the activerecord.errors.format.separator translation key. #1294 *Akira Matsuda*
865
866 * Add :having as a key to find and the relevant associations. *Emilio Tagua*
867
868 * Added default_scope to Base #1381 [Paweł Kondzior]. Example:
869
870 class Person < ActiveRecord::Base
871 default_scope :order => 'last_name, first_name'
872 end
873
874 class Company < ActiveRecord::Base
875 has_many :people
876 end
877
878 Person.all # => Person.find(:all, :order => 'last_name, first_name')
879 Company.find(1).people # => Person.find(:all, :order => 'last_name, first_name', :conditions => { :company_id => 1 })
880
881
882 ## 2.2.1 RC2 (November 14th, 2008) ##
883
884 * Ensure indices don't flip order in schema.rb #1266 *Jordi Bunster*
885
886 * Fixed that serialized strings should never be type-casted (i.e. turning "Yes" to a boolean) #857 *Andreas Korth*
887
888
889 ## 2.2.0 RC1 (October 24th, 2008) ##
890
891 * Skip collection ids reader optimization if using :finder_sql *Jeremy Kemper*
892
893 * Add Model#delete instance method, similar to Model.delete class method. #1086 *Hongli Lai (Phusion)*
894
895 * MySQL: cope with quirky default values for not-null text columns. #1043 *Frederick Cheung*
896
897 * Multiparameter attributes skip time zone conversion for time-only columns [#1030 state:resolved] *Geoff Buesing*
898
899 * Base.skip_time_zone_conversion_for_attributes uses class_inheritable_accessor, so that subclasses don't overwrite Base [#346 state:resolved] *Emilio Tagua*
900
901 * Added find_last_by dynamic finder #762 *Emilio Tagua*
902
903 * Internal API: configurable association options and build_association method for reflections so plugins may extend and override. #985 *Hongli Lai (Phusion)*
904
905 * Changed benchmarks to be reported in milliseconds *David Heinemeier Hansson*
906
907 * Connection pooling. #936 *Nick Sieger*
908
909 * Merge scoped :joins together instead of overwriting them. May expose scoping bugs in your code! #501 *Andrew White*
910
911 * 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*
912
913 * Transactional migrations for databases which support them. #834 *divoxx, Adam Wiggins, Tarmo Tänav*
914
915 * Set config.active_record.timestamped_migrations = false to have migrations with numeric prefix instead of UTC timestamp. #446. *Andrew Stone, Nik Wakelin*
916
917 * change_column_default preserves the not-null constraint. #617 *Tarmo Tänav*
918
919 * Fixed that create database statements would always include "DEFAULT NULL" (Nick Sieger) *#334*
920
921 * Add :tokenizer option to validates_length_of to specify how to split up the attribute string. #507. [David Lowenfels] Example :
922
923 \# Ensure essay contains at least 100 words.
924 validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least %d words."), :tokenizer => lambda {|str| str.scan(/\w+/) }
925
926 * Allow conditions on multiple tables to be specified using hash. [Pratik Naik]. Example:
927
928 User.all :joins => :items, :conditions => { :age => 10, :items => { :color => 'black' } }
929 Item.first :conditions => { :items => { :color => 'red' } }
930
931 * Always treat integer :limit as byte length. #420 *Tarmo Tänav*
932
933 * Partial updates don't update lock_version if nothing changed. #426 *Daniel Morrison*
934
935 * Fix column collision with named_scope and :joins. #46 *Duncan Beevers, Mark Catley*
936
937 * db:migrate:down and :up update schema_migrations. #369 *Michael Raidel, RaceCondition*
938
939 * PostgreSQL: support :conditions => [':foo::integer', { :foo => 1 }] without treating the ::integer typecast as a bind variable. *Tarmo Tänav*
940
941 * MySQL: rename_column preserves column defaults. #466 *Diego Algorta*
942
943 * Add :from option to calculations. #397 *Ben Munat*
944
945 * Add :validate option to associations to enable/disable the automatic validation of associated models. Resolves #301. *Jan De Poorter*
946
947 * PostgreSQL: use 'INSERT ... RETURNING id' for 8.2 and later. *Jeremy Kemper*
948
949 * Added SQL escaping for :limit and :offset in MySQL *Jonathan Wiess*
950
951
952 ## 2.1.0 (May 31st, 2008) ##
953
954 * Add ActiveRecord::Base.sti_name that checks ActiveRecord::Base#store_full_sti_class? and returns either the full or demodulized name. *Rick Olson*
955
956 * Add first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
957
958 * Added SQL escaping for :limit and :offset #288 *Aaron Bedra, Steven Bristol, Jonathan Wiess*
959
960 * Added first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
961
962 * Ensure hm:t preloading honours reflection options. Resolves #137. *Frederick Cheung*
963
964 * Added protection against duplicate migration names (Aslak Hellesøy) *#112*
965
966 * 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*
967
968 * 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*
969
970 * Added change_table for migrations (Jeff Dean) [#71]. Example:
971
972 change_table :videos do |t|
973 t.timestamps # adds created_at, updated_at
974 t.belongs_to :goat # adds goat_id integer
975 t.string :name, :email, :limit => 20 # adds name and email both with a 20 char limit
976 t.remove :name, :email # removes the name and email columns
977 end
978
979 * Fixed has_many :through .create with no parameters caused a "can't dup NilClass" error (Steven Soroka) *#85*
980
981 * Added block-setting of attributes for Base.create like Base.new already has (Adam Meehan) *#39*
982
983 * Fixed that pessimistic locking you reference the quoted table name (Josh Susser) *#67*
984
985 * Fixed that change_column should be able to use :null => true on a field that formerly had false [Nate Wiger] *#26*
986
987 * Added that the MySQL adapter should map integer to either smallint, int, or bigint depending on the :limit just like PostgreSQL *David Heinemeier Hansson*
988
989 * Change validates_uniqueness_of :case_sensitive option default back to true (from [9160]). Love your database columns, don't LOWER them. *Rick Olson*
990
991 * Add support for interleaving migrations by storing which migrations have run in the new schema_migrations table. Closes #11493 *Jordi Bunster*
992
993 * ActiveRecord::Base#sum defaults to 0 if no rows are returned. Closes #11550 *Kamal Fariz Mahyuddin*
994
995 * Ensure that respond_to? considers dynamic finder methods. Closes #11538. *James Mead*
996
997 * Ensure that save on parent object fails for invalid has_one association. Closes #10518. *Pratik Naik*
998
999 * Remove duplicate code from associations. *Pratik Naik*
1000
1001 * Refactor HasManyThroughAssociation to inherit from HasManyAssociation. Association callbacks and <association>_ids= now work with hm:t. #11516 *Ruy Asan*
1002
1003 * Ensure HABTM#create and HABTM#build do not load entire association. *Pratik Naik*
1004
1005 * Improve documentation. *Xavier Noria, Jack Danger Canty, leethal*
1006
1007 * Tweak ActiveRecord::Base#to_json to include a root value in the returned hash: {"post": {"title": ...}} *Rick Olson*
1008
1009 Post.find(1).to_json # => {"title": ...}
1010 config.active_record.include_root_in_json = true
1011 Post.find(1).to_json # => {"post": {"title": ...}}
1012
1013 * Add efficient #include? to AssociationCollection (for has_many/has_many :through/habtm). *stopdropandrew*
1014
1015 * PostgreSQL: create_ and drop_database support. #9042 *ez, pedz, Nick Sieger*
1016
1017 * Ensure that validates_uniqueness_of works with with_scope. Closes #9235. *Nik Wakelin, cavalle*
1018
1019 * Partial updates include only unsaved attributes. Off by default; set YourClass.partial_updates = true to enable. *Jeremy Kemper*
1020
1021 * Removing unnecessary uses_tzinfo helper from tests, given that TZInfo is now bundled *Geoff Buesing*
1022
1023 * Fixed that validates_size_of :within works in associations #11295, #10019 *cavalle*
1024
1025 * Track changes to unsaved attributes. *Jeremy Kemper*
1026
1027 * 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*
1028
1029 * Fixed that has_many :through would ignore the hash conditions #11447 *Emilio Tagua*
1030
1031 * Fix issue where the :uniq option of a has_many :through association is ignored when find(:all) is called. Closes #9407 *cavalle*
1032
1033 * Fix duplicate table alias error when including an association with a has_many :through association on the same join table. Closes #7310 *cavalle*
1034
1035 * More efficient association preloading code that compacts a through_records array in a central location. Closes #11427 *Jack Danger Canty*
1036
1037 * Improve documentation. *Ryan Bigg, Jan De Poorter, Cheah Chu Yeow, Xavier Shay, Jack Danger Canty, Emilio Tagua, Xavier Noria, Sunny Ripert*
1038
1039 * Fixed that ActiveRecord#Base.find_or_create/initialize would not honor attr_protected/accessible when used with a hash #11422 *Emilio Tagua*
1040
1041 * Added ActiveRecord#Base.all/first/last as aliases for find(:all/:first/:last) #11413 *nkallen, Chris O'Sullivan*
1042
1043 * Merge the has_finder gem, renamed as 'named_scope'. #11404 *nkallen*
1044
1045 class Article < ActiveRecord::Base
1046 named_scope :published, :conditions => {:published => true}
1047 named_scope :popular, :conditions => ...
1048 end
1049
1050 Article.published.paginate(:page => 1)
1051 Article.published.popular.count
1052 Article.popular.find(:first)
1053 Article.popular.find(:all, :conditions => {...})
1054
1055 See http://pivots.pivotallabs.com/users/nick/blog/articles/284-hasfinder-it-s-now-easier-than-ever-to-create-complex-re-usable-sql-queries
1056
1057 * Add has_one :through support. #4756 *Chris O'Sullivan*
1058
1059 * Migrations: create_table supports primary_key_prefix_type. #10314 *student, Chris O'Sullivan*
1060
1061 * Added logging for dependency load errors with fixtures #11056 *stuthulhu*
1062
1063 * Time zone aware attributes use Time#in_time_zone *Geoff Buesing*
1064
1065 * Fixed that scoped joins would not always be respected #6821 *Theory/Jack Danger Canty*
1066
1067 * Ensure that ActiveRecord::Calculations disambiguates field names with the table name. #11027 *cavalle*
1068
1069 * Added add/remove_timestamps to the schema statements for adding the created_at/updated_at columns on existing tables #11129 *jramirez*
1070
1071 * Added ActiveRecord::Base.find(:last) #11338 *Emilio Tagua*
1072
1073 * test_native_types expects DateTime.local_offset instead of DateTime.now.offset; fixes test breakage due to dst transition *Geoff Buesing*
1074
1075 * Add :readonly option to HasManyThrough associations. #11156 *Emilio Tagua*
1076
1077 * Improve performance on :include/:conditions/:limit queries by selectively joining in the pre-query. #9560 *dasil003*
1078
1079 * Perf fix: Avoid the use of named block arguments. Closes #11109 *adymo*
1080
1081 * PostgreSQL: support server versions 7.4 through 8.0 and the ruby-pg driver. #11127 *jdavis*
1082
1083 * Ensure association preloading doesn't break when an association returns nil. ##11145 *GMFlash*
1084
1085 * Make dynamic finders respect the :include on HasManyThrough associations. #10998. *cpytel*
1086
1087 * 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*
1088
1089 * Refactor ConnectionAdapters::Column.new_time: leverage DateTime failover behavior of Time#time_with_datetime_fallback *Geoff Buesing*
1090
1091 * Improve associations performance by using symbol callbacks instead of string callbacks. #11108 *adymo*
1092
1093 * Optimise the BigDecimal conversion code. #11110 *adymo*
1094
1095 * Introduce the :readonly option to all associations. Records from the association cannot be saved. #11084 *Emilio Tagua*
1096
1097 * Multiparameter attributes for time columns fail over to DateTime when out of range of Time *Geoff Buesing*
1098
1099 * Base#instantiate_time_object uses Time.zone.local() *Geoff Buesing*
1100
1101 * Add timezone-aware attribute readers and writers. #10982 *Geoff Buesing*
1102
1103 * Instantiating time objects in multiparameter attributes uses Time.zone if available. #10982 *Rick Olson*
1104
1105 * Add note about how ActiveRecord::Observer classes are initialized in a Rails app. #10980 *Xavier Noria*
1106
1107 * MySQL: omit text/blob defaults from the schema instead of using an empty string. #10963 *mdeiters*
1108
1109 * belongs_to supports :dependent => :destroy and :delete. #10592 *Jonathan Viney*
1110
1111 * Introduce preload query strategy for eager :includes. #9640 *Frederick Cheung, Aliaksey Kandratsenka, codafoo*
1112
1113 * Support aggregations in finder conditions. #10572 *Ryan Kinderman*
1114
1115 * Organize and clean up the Active Record test suite. #10742 *John Barnette*
1116
1117 * Ensure that modifying has_and_belongs_to_many actions clear the query cache. Closes #10840 *john.andrews*
1118
1119 * Fix issue where Table#references doesn't pass a :null option to a *_type attribute for polymorphic associations. Closes #10753 *railsjitsu*
1120
1121 * Fixtures: removed support for the ancient pre-YAML file format. #10736 *John Barnette*
1122
1123 * More thoroughly quote table names. #10698 *dimdenis, lotswholetime, Jeremy Kemper*
1124
1125 * 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*
1126
1127 * Added ActiveRecord::Base.cache_key to make it easier to cache Active Records in combination with the new ActiveSupport::Cache::* libraries *David Heinemeier Hansson*
1128
1129 * Make sure CSV fixtures are compatible with ruby 1.9's new csv implementation. *JEG2*
1130
1131 * Added by parameter to increment, decrement, and their bang varieties so you can do player1.increment!(:points, 5) #10542 *Sam*
1132
1133 * Optimize ActiveRecord::Base#exists? to use #select_all instead of #find. Closes #10605 *jamesh, Frederick Cheung, protocool*
1134
1135 * Don't unnecessarily load has_many associations in after_update callbacks. Closes #6822 *stopdropandrew, canadaduane*
1136
1137 * Eager belongs_to :include infers the foreign key from the association name rather than the class name. #10517 *Jonathan Viney*
1138
1139 * SQLite: fix rename_ and remove_column for columns with unique indexes. #10576 *Brandon Keepers*
1140
1141 * Ruby 1.9 compatibility. #10655 *Jeremy Kemper, Dirkjan Bussink*
1142
1143
1144 ## 2.0.2 (December 16th, 2007) ##
1145
1146 * Ensure optimistic locking handles nil #lock_version values properly. Closes #10510 *Rick Olson*
1147
1148 * Make the Fixtures Test::Unit enhancements more supporting for double-loaded test cases. Closes #10379 *brynary*
1149
1150 * Fix that validates_acceptance_of still works for non-existent tables (useful for bootstrapping new databases). Closes #10474 *Josh Susser*
1151
1152 * Ensure that the :uniq option for has_many :through associations retains the order. #10463 *remvee*
1153
1154 * Base.exists? doesn't rescue exceptions to avoid hiding SQL errors. #10458 *Michael Klishin*
1155
1156 * Documentation: Active Record exceptions, destroy_all and delete_all. #10444, #10447 *Michael Klishin*
1157
1158
1159 ## 2.0.1 (December 7th, 2007) ##
1160
1161 * Removed query cache rescue as it could cause code to be run twice (closes #10408) *David Heinemeier Hansson*
1162
1163
1164 ## 2.0.0 (December 6th, 2007) ##
1165
1166 * 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*
1167
1168 * 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*
1169
1170 * Fixed that the truncation of strings longer than 50 chars should use inspect
1171 so newlines etc are escaped #10385 [Norbert Crombach]
1172 * Fixed that habtm associations should be able to set :select as part of their definition and have that honored *David Heinemeier Hansson*
1173
1174 * Document how the :include option can be used in Calculations::calculate. Closes #7446 *adamwiggins, ultimoamore*
1175
1176 * Fix typo in documentation for polymorphic associations w/STI. Closes #7461 *johnjosephbachir*
1177
1178 * 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*
1179
1180 * More complete documentation for find_by_sql. Closes #7912 *fearoffish*
1181
1182 * Added ActiveRecord::Base#becomes to turn a record into one of another class (mostly relevant for STIs) [David Heinemeier Hansson]. Example:
1183
1184 render :partial => @client.becomes(Company) # renders companies/company instead of clients/client
1185
1186 * Fixed that to_xml should not automatically pass :procs to associations included with :include #10162 *Cheah Chu Yeow*
1187
1188 * Fix documentation typo introduced in [8250]. Closes #10339 *Henrik N*
1189
1190 * Foxy fixtures: support single-table inheritance. #10234 *tom*
1191
1192 * Foxy fixtures: allow mixed usage to make migration easier and more attractive. #10004 *lotswholetime*
1193
1194 * Make the record_timestamps class-inheritable so it can be set per model. #10004 *tmacedo*
1195
1196 * Allow validates_acceptance_of to use a real attribute instead of only virtual (so you can record that the acceptance occured) #7457 *ambethia*
1197
1198 * DateTimes use Ruby's default calendar reform setting. #10201 *Geoff Buesing*
1199
1200 * Dynamic finders on association collections respect association :order and :limit. #10211, #10227 *Patrick Joyce, Rick Olson, Jack Danger Canty*
1201
1202 * Add 'foxy' support for fixtures of polymorphic associations. #10183 *John Barnette, David Lowenfels*
1203
1204 * validates_inclusion_of and validates_exclusion_of allow formatted :message strings. #8132 *devrieda, Mike Naberezny*
1205
1206 * attr_readonly behaves well with optimistic locking. #10188 *Nick Bugajski*
1207
1208 * Base#to_xml supports the nil="true" attribute like Hash#to_xml. #8268 *Jonathan del Strother*
1209
1210 * Change plings to the more conventional quotes in the documentation. Closes #10104 *Jack Danger Canty*
1211
1212 * Fix HasManyThrough Association so it uses :conditions on the HasMany Association. Closes #9729 *Jack Danger Canty*
1213
1214 * Ensure that column names are quoted. Closes #10134 *wesley.moxam*
1215
1216 * Smattering of grammatical fixes to documentation. Closes #10083 *Bob Silva*
1217
1218 * Enhance explanation with more examples for attr_accessible macro. Closes #8095 *fearoffish, Marcel Molina Jr.*
1219
1220 * Update association/method mapping table to refected latest collection methods for has_many :through. Closes #8772 *Pratik Naik*
1221
1222 * Explain semantics of having several different AR instances in a transaction block. Closes #9036 *jacobat, Marcel Molina Jr.*
1223
1224 * Update Schema documentation to use updated sexy migration notation. Closes #10086 *Sam Granieri*
1225
1226 * Make fixtures work with the new test subclasses. *Tarmo Tänav, Michael Koziarski*
1227
1228 * Introduce finder :joins with associations. Same :include syntax but with inner rather than outer joins. #10012 *RubyRedRick*
1229 # Find users with an avatar
1230 User.find(:all, :joins => :avatar)
1231
1232 # Find posts with a high-rated comment.
1233 Post.find(:all, :joins => :comments, :conditions => 'comments.rating > 3')
1234
1235 * Associations: speedup duplicate record check. #10011 *Pratik Naik*
1236
1237 * Make sure that << works on has_many associations on unsaved records. Closes #9989 *Josh Susser*
1238
1239 * Allow association redefinition in subclasses. #9346 *wildchild*
1240
1241 * Fix has_many :through delete with custom foreign keys. #6466 *naffis*
1242
1243 * Foxy fixtures, from rathole (http://svn.geeksomnia.com/rathole/trunk/README)
1244 - stable, autogenerated IDs
1245 - specify associations (belongs_to, has_one, has_many) by label, not ID
1246 - specify HABTM associations as inline lists
1247 - autofill timestamp columns
1248 - support YAML defaults
1249 - fixture label interpolation
1250 Enabled for fixtures that correspond to a model class and don't specify a primary key value. #9981 *John Barnette*
1251
1252 * Add docs explaining how to protect all attributes using attr_accessible with no arguments. Closes #9631 *boone, rmm5t*
1253
1254 * Update add_index documentation to use new options api. Closes #9787 *Kamal Fariz Mahyuddin*
1255
1256 * Allow find on a has_many association defined with :finder_sql to accept id arguments as strings like regular find does. Closes #9916 *krishna*
1257
1258 * Use VALID_FIND_OPTIONS when resolving :find scoping rather than hard coding the list of valid find options. Closes #9443 *sur*
1259
1260 * Limited eager loading no longer ignores scoped :order. Closes #9561 *Jack Danger Canty, Josh Peek*
1261
1262 * 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*
1263
1264 * Assigning nil to a composed_of aggregate also sets its immediate value to nil. #9843 *Chris Cruft*
1265
1266 * Ensure that mysql quotes table names with database names correctly. Closes #9911 *crayz*
1267
1268 "foo.bar" => "`foo`.`bar`"
1269
1270 * Complete the assimilation of Sexy Migrations from ErrFree *Chris Wanstrath, PJ Hyett*
1271 http://errtheblog.com/post/2381
1272
1273 * Qualified column names work in hash conditions, like :conditions => { 'comments.created_at' => ... }. #9733 *Jack Danger Canty*
1274
1275 * 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*
1276
1277 * Refactor association create and build so before & after callbacks behave consistently. #8854 *Pratik Naik, mortent*
1278
1279 * Quote table names. Defaults to column quoting. #4593 *Justin Lynn, gwcoffey, eadz, Dmitry V. Sabanin, Jeremy Kemper*
1280
1281 * Alias association #build to #new so it behaves predictably. #8787 *Pratik Naik*
1282
1283 * Add notes to documentation regarding attr_readonly behavior with counter caches and polymorphic associations. Closes #9835 *saimonmoore, Rick Olson*
1284
1285 * Observers can observe model names as symbols properly now. Closes #9869 *queso*
1286
1287 * find_and_(initialize|create)_by methods can now properly initialize protected attributes *Tobias Lütke*
1288
1289 * belongs_to infers the foreign key from the association name instead of from the class name. *Jeremy Kemper*
1290
1291 * PostgreSQL: support multiline default values. #7533 *Carl Lerche, aguynamedryan, Rein Henrichs, Tarmo Tänav*
1292
1293 * MySQL: fix change_column on not-null columns that don't accept dfeault values of ''. #6663 *Jonathan Viney, Tarmo Tänav*
1294
1295 * validates_uniqueness_of behaves well with abstract superclasses and
1296 single-table inheritance. #3833, #9886 [Gabriel Gironda, rramdas, François Beausoleil, Josh Peek, Tarmo Tänav, pat]
1297 * Warn about protected attribute assigments in development and test environments when mass-assigning to an attr_protected attribute. #9802 *Henrik N*
1298
1299 * Speedup database date/time parsing. *Jeremy Kemper, Tarmo Tänav*
1300
1301 * Fix calling .clear on a has_many :dependent=>:delete_all association. *Tarmo Tänav*
1302
1303 * Allow change_column to set NOT NULL in the PostgreSQL adapter *Tarmo Tänav*
1304
1305 * Fix that ActiveRecord would create attribute methods and override custom attribute getters if the method is also defined in Kernel.methods. *Rick Olson*
1306
1307 * 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*
1308
1309 * 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*
1310
1311
1312 ## 2.0.0 Preview Release (September 29th, 2007) Includes duplicates of changes from 1.14.2 - 1.15.3 ##
1313
1314 * Add attr_readonly to specify columns that are skipped during a normal ActiveRecord #save operation. Closes #6896 *Dan Manges*
1315
1316 class Comment < ActiveRecord::Base
1317 # Automatically sets Article#comments_count as readonly.
1318 belongs_to :article, :counter_cache => :comments_count
1319 end
1320
1321 class Article < ActiveRecord::Base
1322 attr_readonly :approved_comments_count
1323 end
1324
1325 * Make size for has_many :through use counter cache if it exists. Closes #9734 *Xavier Shay*
1326
1327 * Remove DB2 adapter since IBM chooses to maintain their own adapter instead. *Jeremy Kemper*
1328
1329 * Extract Oracle, SQLServer, and Sybase adapters into gems. *Jeremy Kemper*
1330
1331 * Added fixture caching that'll speed up a normal fixture-powered test suite between 50% and 100% #9682 *Frederick Cheung*
1332
1333 * Correctly quote id list for limited eager loading. #7482 *tmacedo*
1334
1335 * Fixed that using version-targetted migrates would fail on loggers other than the default one #7430 *valeksenko*
1336
1337 * Fixed rename_column for SQLite when using symbols for the column names #8616 *drodriguez*
1338
1339 * Added the possibility of using symbols in addition to concrete classes with ActiveRecord::Observer#observe. #3998 *Robby Russell, Tarmo Tänav*
1340
1341 * Added ActiveRecord::Base#to_json/from_json *David Heinemeier Hansson, Cheah Chu Yeow*
1342
1343 * Added ActiveRecord::Base#from_xml [David Heinemeier Hansson]. Example:
1344
1345 xml = "<person><name>David</name></person>"
1346 Person.new.from_xml(xml).name # => "David"
1347
1348 * Define dynamic finders as real methods after first usage. *bscofield*
1349
1350 * Deprecation: remove deprecated threaded_connections methods. Use allow_concurrency instead. *Jeremy Kemper*
1351
1352 * Associations macros accept extension blocks alongside modules. #9346 *Josh Peek*
1353
1354 * Speed up and simplify query caching. *Jeremy Kemper*
1355
1356 * connection.select_rows 'sql' returns an array (rows) of arrays (field values). #2329 *Michael Schuerig*
1357
1358 * Eager loading respects explicit :joins. #9496 *dasil003*
1359
1360 * Extract Firebird, FrontBase, and OpenBase adapters into gems. #9508, #9509, #9510 *Jeremy Kemper*
1361
1362 * RubyGem database adapters: expects a gem named activerecord-<database>-adapter with active_record/connection_adapters/<database>_adapter.rb in its load path. *Jeremy Kemper*
1363
1364 * Fixed that altering join tables in migrations would fail w/ sqlite3 #7453 *TimoMihaljov/brandon*
1365
1366 * Fix association writer with :dependent => :nullify. #7314 *Jonathan Viney*
1367
1368 * OpenBase: update for new lib and latest Rails. Support migrations. #8748 *dcsesq*
1369
1370 * Moved acts_as_tree into a plugin of the same name on the official Rails svn. #9514 *Pratik Naik*
1371
1372 * Moved acts_as_nested_set into a plugin of the same name on the official Rails svn. #9516 *Josh Peek*
1373
1374 * Moved acts_as_list into a plugin of the same name on the official Rails svn. *Josh Peek*
1375
1376 * Explicitly require active_record/query_cache before using it. *Jeremy Kemper*
1377
1378 * Fix bug where unserializing an attribute attempts to modify a frozen @attributes hash for a deleted record. *Rick Olson, marclove*
1379
1380 * Performance: absorb instantiate and initialize_with_callbacks into the Base methods. *Jeremy Kemper*
1381
1382 * Fixed that eager loading queries and with_scope should respect the :group option *David Heinemeier Hansson*
1383
1384 * Improve performance and functionality of the postgresql adapter. Closes #8049 *roderickvd*
1385
1386 For more information see: http://dev.rubyonrails.org/ticket/8049
1387
1388 * Don't clobber includes passed to has_many.count *Jack Danger Canty*
1389
1390 * Make sure has_many uses :include when counting *Jack Danger Canty*
1391
1392 * Change the implementation of ActiveRecord's attribute reader and writer methods *Michael Koziarski*
1393 - 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.
1394 * Perform a deep #dup on query cache results so that modifying activerecord attributes does not modify the cached attributes. *Rick Olson*
1395
1396 \# Ensure that has_many :through associations use a count query instead of loading the target when #size is called. Closes #8800 [Pratik Naik]
1397 * Added :unless clause to validations #8003 [monki]. Example:
1398
1399 def using_open_id?
1400 !identity_url.blank?
1401 end
1402
1403 validates_presence_of :identity_url, :if => using_open_id?
1404 validates_presence_of :username, :unless => using_open_id?
1405 validates_presence_of :password, :unless => using_open_id?
1406
1407 * Fix #count on a has_many :through association so that it recognizes the :uniq option. Closes #8801 *Pratik Naik*
1408
1409 * Fix and properly document/test count(column_name) usage. Closes #8999 *Pratik Naik*
1410
1411 * Remove deprecated count(conditions=nil, joins=nil) usage. Closes #8993 *Pratik Naik*
1412
1413 * Change belongs_to so that the foreign_key assumption is taken from the association name, not the class name. Closes #8992 *Josh Susser*
1414
1415 OLD
1416 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is user_id
1417
1418 NEW
1419 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is visitor_id
1420
1421 * Remove spurious tests from deprecated_associations_test, most of these aren't deprecated, and are duplicated in associations_test. Closes #8987 *Pratik Naik*
1422
1423 * Make create! on a has_many :through association return the association object. Not the collection. Closes #8786 *Pratik Naik*
1424
1425 * Move from select * to select tablename.* to avoid clobbering IDs. Closes #8889 *dasil003*
1426
1427 * Don't call unsupported methods on associated objects when using :include, :method with to_xml #7307, *Manfred Stienstra, jwilger*
1428
1429 * Define collection singular ids method for has_many :through associations. #8763 *Pratik Naik*
1430
1431 * Array attribute conditions work with proxied association collections. #8318 *Kamal Fariz Mahyuddin, theamazingrando*
1432
1433 * Fix polymorphic has_one associations declared in an abstract class. #8638 *Pratik Naik, Dax Huiberts*
1434
1435 * Fixed validates_associated should not stop on the first error. #4276 *mrj, Manfred Stienstra, Josh Peek*
1436
1437 * Rollback if commit raises an exception. #8642 *kik, Jeremy Kemper*
1438
1439 * Update tests' use of fixtures for the new collections api. #8726 *Kamal Fariz Mahyuddin*
1440
1441 * Save associated records only if the association is already loaded. #8713 *Blaine*
1442
1443 * MySQL: fix show_variable. #8448 *matt, Jeremy Kemper*
1444
1445 * Fixtures: correctly delete and insert fixtures in a single transaction. #8553 *Michael Schuerig*
1446
1447 * Fixtures: people(:technomancy, :josh) returns both fixtures. #7880 *technomancy, Josh Peek*
1448
1449 * Calculations support non-numeric foreign keys. #8154 *Kamal Fariz Mahyuddin*
1450
1451 * with_scope is protected. #8524 *Josh Peek*
1452
1453 * Quickref for association methods. #7723 *marclove, Mindsweeper*
1454
1455 * Calculations: return nil average instead of 0 when there are no rows to average. #8298 *davidw*
1456
1457 * acts_as_nested_set: direct_children is sorted correctly. #4761 *Josh Peek, rails@33lc0.net*
1458
1459 * Raise an exception if both attr_protected and attr_accessible are declared. #8507 *stellsmi*
1460
1461 * SQLite, MySQL, PostgreSQL, Oracle: quote column names in column migration SQL statements. #8466 *marclove, lorenjohnson*
1462
1463 * Allow nil serialized attributes with a set class constraint. #7293 *sandofsky*
1464
1465 * Oracle: support binary fixtures. #7987 *Michael Schoen*
1466
1467 * Fixtures: pull fixture insertion into the database adapters. #7987 *Michael Schoen*
1468
1469 * Announce migration versions as they're performed. *Jeremy Kemper*
1470
1471 * find gracefully copes with blank :conditions. #7599 *Dan Manges, johnnyb*
1472
1473 * 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*
1474
1475 * MySQL: create_database takes :charset and :collation options. Charset defaults to utf8. #8448 *matt*
1476
1477 * Find with a list of ids supports limit/offset. #8437 *hrudududu*
1478
1479 * Optimistic locking: revert the lock version when an update fails. #7840 *plang*
1480
1481 * Migrations: add_column supports custom column types. #7742 *jsgarvin, Theory*
1482
1483 * 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*
1484
1485 * Ensure that associations with :dependent => :delete_all respect :conditions option. Closes #8034 *Jack Danger Canty, Josh Peek, Rick Olson*
1486
1487 * belongs_to assignment creates a new proxy rather than modifying its target in-place. #8412 *mmangino@elevatedrails.com*
1488
1489 * Fix column type detection while loading fixtures. Closes #7987 *roderickvd*
1490
1491 * Document deep eager includes. #6267 *Josh Susser, Dan Manges*
1492
1493 * Document warning that associations names shouldn't be reserved words. #4378 *murphy@cYcnus.de, Josh Susser*
1494
1495 * Sanitize Base#inspect. #8392, #8623 *Nik Wakelin, jnoon*
1496
1497 * Replace the transaction {|transaction|..} semantics with a new Exception ActiveRecord::Rollback. *Michael Koziarski*
1498
1499 * Oracle: extract column length for CHAR also. #7866 *ymendel*
1500
1501 * Document :allow_nil option for validates_acceptance_of since it defaults to true. *tzaharia*
1502
1503 * Update documentation for :dependent declaration so that it explicitly uses the non-deprecated API. *Jack Danger Canty*
1504
1505 * Add documentation caveat about when to use count_by_sql. *fearoffish*
1506
1507 * Enhance documentation for increment_counter and decrement_counter. *fearoffish*
1508
1509 * Provide brief introduction to what optimistic locking is. *fearoffish*
1510
1511 * Add documentation for :encoding option to mysql adapter. *marclove*
1512
1513 * Added short-hand declaration style to migrations (inspiration from Sexy Migrations, http://errtheblog.com/post/2381) [David Heinemeier Hansson]. Example:
1514
1515 create_table "products" do |t|
1516 t.column "shop_id", :integer
1517 t.column "creator_id", :integer
1518 t.column "name", :string, :default => "Untitled"
1519 t.column "value", :string, :default => "Untitled"
1520 t.column "created_at", :datetime
1521 t.column "updated_at", :datetime
1522 end
1523
1524 ...can now be written as:
1525
1526 create_table :products do |t|
1527 t.integer :shop_id, :creator_id
1528 t.string :name, :value, :default => "Untitled"
1529 t.timestamps
1530 end
1531
1532 * 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*
1533
1534 * Improve performance of calling .create on has_many :through associations. *evan*
1535
1536 * Improved cloning performance by relying less on exception raising #8159 *Blaine*
1537
1538 * Added ActiveRecord::Base.inspect to return a column-view like #<Post id:integer, title:string, body:text> *David Heinemeier Hansson*
1539
1540 * Added yielding of Builder instance for ActiveRecord::Base#to_xml calls *David Heinemeier Hansson*
1541
1542 * Small additions and fixes for ActiveRecord documentation. Closes #7342 *Jeremy McAnally*
1543
1544 * Add helpful debugging info to the ActiveRecord::StatementInvalid exception in ActiveRecord::ConnectionAdapters::SqliteAdapter#table_structure. Closes #7925. *court3nay*
1545
1546 * SQLite: binary escaping works with $KCODE='u'. #7862 *tsuka*
1547
1548 * Base#to_xml supports serialized attributes. #7502 *jonathan*
1549
1550 * Base.update_all :order and :limit options. Useful for MySQL updates that must be ordered to avoid violating unique constraints. *Jeremy Kemper*
1551
1552 * 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*
1553
1554 * 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*
1555
1556 * 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*
1557
1558 * 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*
1559
1560 * Allow a polymorphic :source for has_many :through associations. Closes #7143 *protocool*
1561
1562 * Consistent public/protected/private visibility for chained methods. #7813 *Dan Manges*
1563
1564 * Oracle: fix quoted primary keys and datetime overflow. #7798 *Michael Schoen*
1565
1566 * Consistently quote primary key column names. #7763 *toolmantim*
1567
1568 * Fixtures: fix YAML ordered map support. #2665 *Manuel Holtgrewe, nfbuckley*
1569
1570 * DateTimes assume the default timezone. #7764 *Geoff Buesing*
1571
1572 * Sybase: hide timestamp columns since they're inherently read-only. #7716 *Mike Joyce*
1573
1574 * Oracle: overflow Time to DateTime. #7718 *Michael Schoen*
1575
1576 * PostgreSQL: don't use async_exec and async_query with postgres-pr. #7727, #7762 *flowdelic, toolmantim*
1577
1578 * Fix has_many :through << with custom foreign keys. #6466, #7153 *naffis, Rich Collins*
1579
1580 * Test DateTime native type in migrations, including an edge case with dates
1581 during calendar reform. #7649, #7724 [fedot, Geoff Buesing]
1582 * SQLServer: correctly schema-dump tables with no indexes or descending indexes. #7333, #7703 *Jakob Skjerning, Tom Ward*
1583
1584 * SQLServer: recognize real column type as Ruby float. #7057 *sethladd, Tom Ward*
1585
1586 * Added fixtures :all as a way of loading all fixtures in the fixture directory at once #7214 *Manfred Stienstra*
1587
1588 * Added database connection as a yield parameter to ActiveRecord::Base.transaction so you can manually rollback [David Heinemeier Hansson]. Example:
1589
1590 transaction do |transaction|
1591 david.withdrawal(100)
1592 mary.deposit(100)
1593 transaction.rollback! # rolls back the transaction that was otherwise going to be successful
1594 end
1595
1596 * Made increment_counter/decrement_counter play nicely with optimistic locking, and added a more general update_counters method *Jamis Buck*
1597
1598 * 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*
1599 Task.cache { Task.find(1); Task.find(1) } # => 1 query
1600
1601 * 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*
1602
1603 * Oracle: fix lob and text default handling. #7344 *gfriedrich, Michael Schoen*
1604
1605 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
1606
1607 * MySQL: blob and text columns may not have defaults in 5.x. Update fixtures schema for strict mode. #6695 *Dan Kubb*
1608
1609 * 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*
1610
1611 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
1612
1613 * Use Date#to_s(:db) for quoted dates. #7411 *Michael Schoen*
1614
1615 * Don't create instance writer methods for class attributes. Closes #7401 *Rick Olson*
1616
1617 * Docs: validations examples. #7343 *zackchandler*
1618
1619 * Add missing tests ensuring callbacks work with class inheritance. Closes #7339 *sandofsky*
1620
1621 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
1622
1623 * Remove useless code in #attribute_present? since 0 != blank?. Closes #7249 *Josh Susser*
1624
1625 * Fix minor doc typos. Closes #7157 *Josh Susser*
1626
1627 * Fix incorrect usage of #classify when creating the eager loading join statement. Closes #7044 *Josh Susser*
1628
1629 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
1630
1631 * Subclasses of an abstract class work with single-table inheritance. #5704, #7284 *BertG, nick+rails@ag.arizona.edu*
1632
1633 * Make sure sqlite3 driver closes open connections on disconnect *Rob Rasmussen*
1634
1635 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
1636
1637 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
1638
1639 * 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*
1640
1641 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
1642
1643 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
1644
1645 * Apply scoping during initialize instead of create. Fixes setting of foreign key when using find_or_initialize_by with scoping. *Cody Fauser*
1646
1647 * SQLServer: handle [quoted] table names. #6635 *rrich*
1648
1649 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
1650
1651 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
1652
1653 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
1654 Student.find(:all, :conditions => { :grade => 9..12 })
1655
1656 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
1657
1658 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
1659
1660 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
1661
1662 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
1663
1664 * Rollback new_record? and id when an exception is raised in a save callback. #6910 *Ben Curren, outerim*
1665
1666 * Pushing a record on an association collection doesn't unnecessarily load all the associated records. *Obie Fernandez, Jeremy Kemper*
1667
1668 * Oracle: fix connection reset failure. #6846 *leonlleslie*
1669
1670 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
1671
1672 * 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*
1673
1674 * 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*
1675
1676 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
1677
1678 * Add AssociationCollection#create! to be consistent with AssociationCollection#create when dealing with a foreign key that is a protected attribute *Cody Fauser*
1679
1680 * 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*
1681
1682 * Change fixture_path to a class inheritable accessor allowing test cases to have their own custom set of fixtures. #6672 *Zach Dennis*
1683
1684 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
1685
1686 * Simplify query_attribute by typecasting the attribute value and checking whether it's nil, false, zero or blank. #6659 *Jonathan Viney*
1687
1688 * 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*
1689
1690 * Run validations in the order they were declared. #6657 *obrie*
1691
1692 * 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*
1693
1694 * Simplify association proxy implementation by factoring construct_scope out of method_missing. #6643 *martin*
1695
1696 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
1697
1698 * 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*
1699
1700 * Don't inspect unloaded associations. #2905 *lmarlow*
1701
1702 * SQLite: use AUTOINCREMENT primary key in >= 3.1.0. #6588, #6616 *careo, lukfugl*
1703
1704 * Cache inheritance_column. #6592 *Stefan Kaes*
1705
1706 * Firebird: decimal/numeric support. #6408 *macrnic*
1707
1708 * make add_order a tad faster. #6567 *Stefan Kaes*
1709
1710 * Find with :include respects scoped :order. #5850
1711
1712 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
1713 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
1714
1715 * 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*
1716
1717 * SQLite: fix calculations workaround, remove count(distinct) query rewrite, cleanup test connection scripts. *Jeremy Kemper*
1718
1719 * SQLite: count(distinct) queries supported in >= 3.2.6. #6544 *Bob Silva*
1720
1721 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
1722
1723 * Deprecation: object transactions warning. *Jeremy Kemper*
1724
1725 * has_one :dependent => :nullify ignores nil associates. #4848, #6528 *bellis@deepthought.org, janovetz, Jeremy Kemper*
1726
1727 * 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*
1728
1729 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
1730
1731 * Document other options available to migration's add_column. #6419 *grg*
1732
1733 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
1734
1735 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
1736
1737 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
1738
1739 * Restore eager condition interpolation, document it's differences *Rick Olson*
1740
1741 * 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*
1742
1743 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
1744
1745 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
1746
1747 * 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*
1748
1749 * 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*
1750
1751 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
1752
1753 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
1754
1755 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
1756
1757 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
1758
1759 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
1760
1761 * 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*
1762
1763 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
1764
1765 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
1766
1767 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
1768
1769 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
1770
1771 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
1772
1773 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
1774
1775 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
1776
1777 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
1778
1779 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
1780
1781 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
1782
1783 * 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*
1784
1785 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
1786
1787 * Document validates_presences_of behavior with booleans: you probably want validates_inclusion_of :attr, :in => [true, false]. #2253 *Bob Silva*
1788
1789 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
1790
1791 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
1792
1793 * Deprecation: update docs. #5998 *Jakob Skjerning, Kevin Clark*
1794
1795 * Add some XmlSerialization tests for ActiveRecord *Rick Olson*
1796
1797 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
1798
1799 * Tighten rescue clauses. #5985 *james@grayproductions.net*
1800
1801 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
1802
1803 * 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*
1804
1805 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
1806
1807 * 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*
1808
1809 * SQLServer: fix eager association test. #5901 *Tom Ward*
1810
1811 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
1812
1813 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
1814
1815 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
1816
1817 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
1818
1819 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
1820
1821 * 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*
1822
1823 * 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*
1824
1825 # Create a tagging to associate the post and tag.
1826 post.tags << Tag.find_by_name('old')
1827 post.tags.create! :name => 'general'
1828
1829 # Would have been:
1830 post.taggings.create!(:tag => Tag.find_by_name('finally')
1831 transaction do
1832 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
1833 end
1834
1835 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
1836
1837 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
1838
1839 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
1840 Example: Invoice::Lineitem is given table name invoice_lineitems
1841
1842 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
1843 # people_active_last_name_index, people_active_deactivated_at_index
1844 add_index :people, [:active, :last_name]
1845 add_index :people, [:active, :deactivated_at]
1846 remove_index :people, [:active, :last_name]
1847 remove_index :people, [:active, :deactivated_at]
1848
1849 WARNING: backward-incompatibility. Multicolumn indexes created before this
1850 revision were named using the first column name only. Now they're uniquely
1851 named using all indexed columns.
1852
1853 To remove an old multicolumn index, remove_index :table_name, :first_column
1854
1855 * Fix for deep includes on the same association. *richcollins@gmail.com*
1856
1857 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
1858
1859 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
1860
1861 * Document find's :from option. Closes #5762. *andrew@redlinesoftware.com*
1862
1863 * 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*
1864
1865 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
1866
1867 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
1868
1869 * Add documentation for how to disable timestamps on a per model basis. Closes #5684. *matt@mattmargolis.net Marcel Molina Jr.*
1870
1871 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
1872
1873 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
1874
1875 * Formally deprecate the deprecated finders. *Michael Koziarski*
1876
1877 * Formally deprecate rich associations. *Michael Koziarski*
1878
1879 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
1880
1881 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
1882
1883 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
1884
1885 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
1886
1887 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
1888
1889 assert (Topic.exists?(:author_name => "David"))
1890 assert (Topic.exists?(:author_name => "Mary", :approved => true))
1891 assert (Topic.exists?(["parent_id = ?", 1]))
1892
1893 * Schema dumper quotes date :default values. *Dave Thomas*
1894
1895 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
1896
1897 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
1898
1899 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
1900
1901 * Allow #count through a has_many association to accept :include. *Dan Peterson*
1902
1903 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
1904
1905 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
1906
1907 * 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*
1908
1909 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
1910
1911 * Oracle: BigDecimal support. #5667 *Michael Schoen*
1912
1913 * 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*
1914
1915 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
1916
1917 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
1918
1919 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
1920
1921 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
1922
1923 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
1924
1925 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
1926
1927 * 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*
1928
1929 * 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*
1930
1931 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
1932
1933 * Minor tweak to improve performance of ActiveRecord::Base#to_param.
1934
1935 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
1936
1937 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
1938
1939 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
1940
1941 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
1942
1943 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
1944
1945 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
1946
1947 * 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*
1948 # Obtain an exclusive lock on person 1 so we can safely increment visits.
1949 Person.transaction do
1950 # select * from people where id=1 for update
1951 person = Person.find(1, :lock => true)
1952 person.visits += 1
1953 person.save!
1954 end
1955
1956 * 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*
1957
1958 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
1959
1960 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
1961
1962 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
1963
1964 * 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*
1965
1966 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
1967
1968 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
1969
1970 ...is the same as:
1971 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
1972
1973 This makes it easier to pass in the options from a form or otherwise outside.
1974
1975
1976 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
1977
1978 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
1979
1980 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
1981
1982 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
1983
1984 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
1985
1986 * 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*
1987
1988 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
1989
1990 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
1991
1992 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
1993 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
1994 Foo.find(:first, :conditions => ['bar_id = ?', bar])
1995
1996 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
1997
1998 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
1999
2000 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2001
2002 * Provide Association Extensions access to the instance that the association is being accessed from.
2003 Closes #4433 *Josh Susser*
2004
2005 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2006
2007 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2008
2009 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2010
2011 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2012
2013 * Added :allow_nil option for aggregations #5091 *Ian White*
2014
2015 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2016
2017 * 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*
2018
2019 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2020
2021 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2022
2023 * 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*
2024
2025 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2026
2027 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2028
2029 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2030
2031 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2032
2033 * Replace superfluous name_to_class_name variant with camelize. *Marcel Molina Jr.*
2034
2035 * Replace alias method chaining with Module#alias_method_chain. *Marcel Molina Jr.*
2036
2037 * Replace Ruby's deprecated append_features in favor of included. *Marcel Molina Jr.*
2038
2039 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2040
2041 * Update FrontBase adapter to check binding version. Closes #4920. *mlaster@metavillage.com*
2042
2043 * New Frontbase connections don't start in auto-commit mode. Closes #4922. *mlaster@metavillage.com*
2044
2045 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2046
2047 * Only modify the sequence name in the FrontBase adapter if the FrontBase adapter is actually being used. *Marcel Molina Jr.*
2048
2049 * 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*
2050
2051 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2052
2053 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2054
2055 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2056
2057 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2058
2059 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2060
2061 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2062
2063 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2064
2065 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2066
2067 * Fix bug where calculations with long alias names return null. *Rick Olson*
2068
2069 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2070
2071 @post.tags << @tag # BAD
2072 @post.taggings.create(:tag => @tag) # GOOD
2073
2074 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2075
2076 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2077
2078 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2079
2080 * Properly quote index names in migrations (closes #4764) *John Long*
2081
2082 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2083
2084 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2085
2086 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2087
2088 * DRY up association collection reader method generation. *Marcel Molina Jr.*
2089
2090 * DRY up and tweak style of the validation error object. *Marcel Molina Jr.*
2091
2092 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2093
2094 class Account < ActiveRecord::Base
2095 validates_uniqueness_of :email, :case_sensitive => false
2096 end
2097
2098 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2099
2100 class Account < ActiveRecord::Base
2101 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2102 end
2103
2104 *1.15.3* (March 12th, 2007)
2105
2106 * Allow a polymorphic :source for has_many :through associations. Closes #7143 [protocool]
2107
2108 * Consistently quote primary key column names. #7763 [toolmantim]
2109
2110 * Fixtures: fix YAML ordered map support. #2665 [Manuel Holtgrewe, nfbuckley]
2111
2112 * Fix has_many :through << with custom foreign keys. #6466, #7153 [naffis, Rich Collins]
2113
2114
2115 ## 1.15.2 (February 5th, 2007) ##
2116
2117 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
2118 Student.find(:all, :conditions => { :grade => 9..12 })
2119
2120 * Don't create instance writer methods for class attributes. *Rick Olson*
2121
2122 * 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*
2123
2124 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
2125
2126 * 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*
2127
2128 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
2129
2130 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
2131
2132 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
2133
2134
2135 ## 1.15.1 (January 17th, 2007) ##
2136
2137 * Fix nodoc breaking of adapters
2138
2139
2140 ## 1.15.0 (January 16th, 2007) ##
2141
2142 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
2143
2144 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
2145
2146 * 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*
2147
2148 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
2149
2150 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
2151
2152 * SQLServer: handle [quoted] table names. #6635 *rrich*
2153
2154 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
2155
2156 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
2157
2158 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
2159
2160 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
2161
2162 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
2163
2164 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
2165
2166 * Oracle: fix connection reset failure. #6846 *leonlleslie*
2167
2168 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
2169
2170 * 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*
2171
2172 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
2173
2174 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
2175 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
2176
2177 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
2178
2179 * 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*
2180
2181 * 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*
2182
2183 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
2184
2185 * 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*
2186
2187 * Firebird: decimal/numeric support. #6408 *macrnic*
2188
2189 * Find with :include respects scoped :order. #5850
2190
2191 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
2192
2193 * Deprecation: object transactions warning. *Jeremy Kemper*
2194
2195 * has_one :dependent => :nullify ignores nil associates. #6528 *janovetz, Jeremy Kemper*
2196
2197 * 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*
2198
2199 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
2200
2201 * Document other options available to migration's add_column. #6419 *grg*
2202
2203 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
2204
2205 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
2206
2207 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
2208
2209 * Restore eager condition interpolation, document it's differences *Rick Olson*
2210
2211 * 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*
2212
2213 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
2214
2215 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
2216
2217 * 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*
2218
2219 * 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*
2220
2221 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
2222
2223 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
2224
2225 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
2226
2227 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
2228
2229 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
2230
2231 * 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*
2232
2233 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
2234
2235 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
2236
2237 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
2238
2239 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
2240
2241 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
2242
2243 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
2244
2245 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
2246
2247 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
2248
2249 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
2250
2251 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
2252
2253 * 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*
2254
2255 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
2256
2257 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
2258
2259 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
2260
2261 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
2262
2263 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
2264
2265 * 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*
2266
2267 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
2268
2269 * 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*
2270
2271 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
2272
2273 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
2274
2275 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
2276
2277 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
2278
2279 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
2280
2281 * 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*
2282
2283 * 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*
2284
2285 # Create a tagging to associate the post and tag.
2286 post.tags << Tag.find_by_name('old')
2287 post.tags.create! :name => 'general'
2288
2289 # Would have been:
2290 post.taggings.create!(:tag => Tag.find_by_name('finally')
2291 transaction do
2292 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
2293 end
2294
2295 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
2296
2297 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
2298
2299 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
2300 Example: Invoice::Lineitem is given table name invoice_lineitems
2301
2302 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
2303 # people_active_last_name_index, people_active_deactivated_at_index
2304 add_index :people, [:active, :last_name]
2305 add_index :people, [:active, :deactivated_at]
2306 remove_index :people, [:active, :last_name]
2307 remove_index :people, [:active, :deactivated_at]
2308
2309 WARNING: backward-incompatibility. Multicolumn indexes created before this
2310 revision were named using the first column name only. Now they're uniquely
2311 named using all indexed columns.
2312
2313 To remove an old multicolumn index, remove_index :table_name, :first_column
2314
2315 * Fix for deep includes on the same association. *richcollins@gmail.com*
2316
2317 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
2318
2319 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
2320
2321 * 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*
2322
2323 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2324
2325 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2326
2327 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2328
2329 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2330
2331 * Formally deprecate the deprecated finders. *Michael Koziarski*
2332
2333 * Formally deprecate rich associations. *Michael Koziarski*
2334
2335 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2336
2337 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2338
2339 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2340
2341 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2342
2343 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2344
2345 assert (Topic.exists?(:author_name => "David"))
2346 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2347 assert (Topic.exists?(["parent_id = ?", 1]))
2348
2349 * Schema dumper quotes date :default values. *Dave Thomas*
2350
2351 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2352
2353 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2354
2355 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2356
2357 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2358
2359 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2360
2361 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2362
2363 * 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*
2364
2365 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2366
2367 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2368
2369 * 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*
2370
2371 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2372
2373 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2374
2375 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2376
2377 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2378
2379 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2380
2381 * 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*
2382
2383 * 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*
2384
2385 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2386
2387 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2388
2389 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2390
2391 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2392
2393 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2394
2395 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2396
2397 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2398
2399 * 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*
2400 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2401 Person.transaction do
2402 # select * from people where id=1 for update
2403 person = Person.find(1, :lock => true)
2404 person.visits += 1
2405 person.save!
2406 end
2407
2408 * 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*
2409
2410 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2411
2412 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2413
2414 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2415
2416 * 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*
2417
2418 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2419
2420 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2421
2422 ...is the same as:
2423 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2424
2425 This makes it easier to pass in the options from a form or otherwise outside.
2426
2427
2428 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2429
2430 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2431
2432 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2433
2434 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2435
2436 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2437
2438 * 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*
2439
2440 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2441
2442 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2443
2444 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2445 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2446 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2447
2448 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2449
2450 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2451
2452 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2453
2454 * Provide Association Extensions access to the instance that the association is being accessed from.
2455 Closes #4433 *Josh Susser*
2456
2457 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2458
2459 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2460
2461 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2462
2463 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2464
2465 * Added :allow_nil option for aggregations #5091 *Ian White*
2466
2467 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2468
2469 * 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*
2470
2471 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2472
2473 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2474
2475 * 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*
2476
2477 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2478
2479 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2480
2481 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2482
2483 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2484
2485 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2486
2487 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2488
2489 * 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*
2490
2491 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2492
2493 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2494
2495 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2496
2497 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2498
2499 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2500
2501 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2502
2503 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2504
2505 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2506
2507 * Fix bug where calculations with long alias names return null. *Rick Olson*
2508
2509 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2510
2511 @post.tags << @tag # BAD
2512 @post.taggings.create(:tag => @tag) # GOOD
2513
2514 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2515
2516 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2517
2518 * Properly quote index names in migrations (closes #4764) *John Long*
2519
2520 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2521
2522 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2523
2524 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2525
2526 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2527
2528 class Account < ActiveRecord::Base
2529 validates_uniqueness_of :email, :case_sensitive => false
2530 end
2531
2532 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2533
2534 class Account < ActiveRecord::Base
2535 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2536 end
2537
2538
2539 ## 1.14.4 (August 8th, 2006) ##
2540
2541 * Add warning about the proper way to validate the presence of a foreign key. #4147 *Francois Beausoleil <francois.beausoleil@gmail.com>*
2542
2543 * Fix syntax error in documentation. #4679 *Mislav Marohnić*
2544
2545 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2546
2547
2548 ## 1.14.3 (June 27th, 2006) ##
2549
2550 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2551
2552 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
2553
2554 * Properly quote index names in migrations (closes #4764) *John Long*
2555
2556 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2557
2558 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2559
2560
2561 ## 1.14.2 (April 9th, 2006) ##
2562
2563 * Fixed calculations for the Oracle Adapter (closes #4626) *Michael Schoen*
2564
2565
2566 ## 1.14.1 (April 6th, 2006) ##
2567
2568 * Fix type_name_with_module to handle type names that begin with '::'. Closes #4614. *Nicholas Seckar*
2569
2570 * Fixed that that multiparameter assignment doesn't work with aggregations (closes #4620) *Lars Pind*
2571
2572 * Enable Limit/Offset in Calculations (closes #4558) *lmarlow*
2573
2574 * Fixed that loading including associations returns all results if Load IDs For Limited Eager Loading returns none (closes #4528) *Rick Olson*
2575
2576 * Fixed HasManyAssociation#find bugs when :finder_sql is set #4600 *lagroue@free.fr*
2577
2578 * Allow AR::Base#respond_to? to behave when @attributes is nil *Ryan Davis*
2579
2580 * Support eager includes when going through a polymorphic has_many association. *Rick Olson*
2581
2582 * Added support for eagerly including polymorphic has_one associations. (closes #4525) *Rick Olson*
2583
2584 class Post < ActiveRecord::Base
2585 has_one :tagging, :as => :taggable
2586 end
2587
2588 Post.find :all, :include => :tagging
2589
2590 * Added descriptive error messages for invalid has_many :through associations: going through :has_one or :has_and_belongs_to_many *Rick Olson*
2591
2592 * Added support for going through a polymorphic has_many association: (closes #4401) *Rick Olson*
2593
2594 class PhotoCollection < ActiveRecord::Base
2595 has_many :photos, :as => :photographic
2596 belongs_to :firm
2597 end
2598
2599 class Firm < ActiveRecord::Base
2600 has_many :photo_collections
2601 has_many :photos, :through => :photo_collections
2602 end
2603
2604 * Multiple fixes and optimizations in PostgreSQL adapter, allowing ruby-postgres gem to work properly. *ruben.nine@gmail.com*
2605
2606 * Fixed that AssociationCollection#delete_all should work even if the records of the association are not loaded yet. *Florian Weber*
2607
2608 * Changed those private ActiveRecord methods to take optional third argument :auto instead of nil for performance optimizations. (closes #4456) *Stefan*
2609
2610 * Private ActiveRecord methods add_limit!, add_joins!, and add_conditions! take an OPTIONAL third argument 'scope' (closes #4456) *Rick Olson*
2611
2612 * DEPRECATED: Using additional attributes on has_and_belongs_to_many associations. Instead upgrade your association to be a real join model *David Heinemeier Hansson*
2613
2614 * 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*
2615
2616 * 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.*
2617
2618 * Fixed broken OCIAdapter #4457 *Michael Schoen*
2619
2620
2621 ## 1.14.0 (March 27th, 2006) ##
2622
2623 * Replace 'rescue Object' with a finer grained rescue. Closes #4431. *Nicholas Seckar*
2624
2625 * Fixed eager loading so that an aliased table cannot clash with a has_and_belongs_to_many join table *Rick Olson*
2626
2627 * Add support for :include to with_scope *andrew@redlinesoftware.com*
2628
2629 * Support the use of public synonyms with the Oracle adapter; required ruby-oci8 v0.1.14 #4390 *Michael Schoen*
2630
2631 * Change periods (.) in table aliases to _'s. Closes #4251 *jeff@ministrycentered.com*
2632
2633 * Changed has_and_belongs_to_many join to INNER JOIN for Mysql 3.23.x. Closes #4348 *Rick Olson*
2634
2635 * Fixed issue that kept :select options from being scoped *Rick Olson*
2636
2637 * Fixed db_schema_import when binary types are present #3101 *David Heinemeier Hansson*
2638
2639 * Fixed that MySQL enums should always be returned as strings #3501 *David Heinemeier Hansson*
2640
2641 * Change has_many :through to use the :source option to specify the source association. :class_name is now ignored. *Rick Olson*
2642
2643 class Connection < ActiveRecord::Base
2644 belongs_to :user
2645 belongs_to :channel
2646 end
2647
2648 class Channel < ActiveRecord::Base
2649 has_many :connections
2650 has_many :contacts, :through => :connections, :class_name => 'User' # OLD
2651 has_many :contacts, :through => :connections, :source => :user # NEW
2652 end
2653
2654 * Fixed DB2 adapter so nullable columns will be determines correctly now and quotes from column default values will be removed #4350 *contact@maik-schmidt.de*
2655
2656 * Allow overriding of find parameters in scoped has_many :through calls *Rick Olson*
2657
2658 In this example, :include => false disables the default eager association from loading. :select changes the standard
2659 select clause. :joins specifies a join that is added to the end of the has_many :through query.
2660
2661 class Post < ActiveRecord::Base
2662 has_many :tags, :through => :taggings, :include => :tagging do
2663 def add_joins_and_select
2664 find :all, :select => 'tags.*, authors.id as author_id', :include => false,
2665 :joins => 'left outer join posts on taggings.taggable_id = posts.id left outer join authors on posts.author_id = authors.id'
2666 end
2667 end
2668 end
2669
2670 * Fixed that schema changes while the database was open would break any connections to an SQLite database (now we reconnect if that error is throw) *David Heinemeier Hansson*
2671
2672 * Don't classify the has_one class when eager loading, it is already singular. Add tests. (closes #4117) *Jonathan Viney*
2673
2674 * Quit ignoring default :include options in has_many :through calls *Mark James*
2675
2676 * Allow has_many :through associations to find the source association by setting a custom class (closes #4307) *Jonathan Viney*
2677
2678 * Eager Loading support added for has_many :through => :has_many associations (see below). *Rick Olson*
2679
2680 * Allow has_many :through to work on has_many associations (closes #3864) [sco@scottraymond.net] Example:
2681
2682 class Firm < ActiveRecord::Base
2683 has_many :clients
2684 has_many :invoices, :through => :clients
2685 end
2686
2687 class Client < ActiveRecord::Base
2688 belongs_to :firm
2689 has_many :invoices
2690 end
2691
2692 class Invoice < ActiveRecord::Base
2693 belongs_to :client
2694 end
2695
2696 * Raise error when trying to select many polymorphic objects with has_many :through or :include (closes #4226) *Josh Susser*
2697
2698 * Fixed has_many :through to include :conditions set on the :through association. closes #4020 *Jonathan Viney*
2699
2700 * Fix that has_many :through honors the foreign key set by the belongs_to association in the join model (closes #4259) *andylien@gmail.com / Rick Olson*
2701
2702 * SQL Server adapter gets some love #4298 *Ryan Tomayko*
2703
2704 * Added OpenBase database adapter that builds on top of the http://www.spice-of-life.net/ruby-openbase/ driver. All functionality except LIMIT/OFFSET is supported #3528 *derrickspell@cdmplus.com*
2705
2706 * Rework table aliasing to account for truncated table aliases. Add smarter table aliasing when doing eager loading of STI associations. This allows you to use the association name in the order/where clause. [Jonathan Viney / Rick Olson] #4108 Example (SpecialComment is using STI):
2707
2708 Author.find(:all, :include => { :posts => :special_comments }, :order => 'special_comments.body')
2709
2710 * Add AbstractAdapter#table_alias_for to create table aliases according to the rules of the current adapter. *Rick Olson*
2711
2712 * Provide access to the underlying database connection through Adapter#raw_connection. Enables the use of db-specific methods without complicating the adapters. #2090 *Michael Koziarski*
2713
2714 * Remove broken attempts at handling columns with a default of 'now()' in the postgresql adapter. #2257 *Michael Koziarski*
2715
2716 * Added connection#current_database that'll return of the current database (only works in MySQL, SQL Server, and Oracle so far -- please help implement for the rest of the adapters) #3663 *Tom Ward*
2717
2718 * Fixed that Migration#execute would have the table name prefix appended to its query #4110 *mark.imbriaco@pobox.com*
2719
2720 * Make all tinyint(1) variants act like boolean in mysql (tinyint(1) unsigned, etc.) *Jamis Buck*
2721
2722 * Use association's :conditions when eager loading. [Jeremy Evans] #4144
2723
2724 * Alias the has_and_belongs_to_many join table on eager includes. #4106 *Jeremy Evans*
2725
2726 This statement would normally error because the projects_developers table is joined twice, and therefore joined_on would be ambiguous.
2727
2728 Developer.find(:all, :include => {:projects => :developers}, :conditions => 'join_project_developers.joined_on IS NOT NULL')
2729
2730 * Oracle adapter gets some love #4230 *Michael Schoen*
2731
2732 * Changes :text to CLOB rather than BLOB [Moses Hohman]
2733 * Fixes an issue with nil numeric length/scales (several)
2734 * Implements support for XMLTYPE columns [wilig / Kubo Takehiro]
2735 * Tweaks a unit test to get it all green again
2736 * Adds support for #current_database
2737
2738 * Added Base.abstract_class? that marks which classes are not part of the Active Record hierarchy #3704 *Rick Olson*
2739
2740 class CachedModel < ActiveRecord::Base
2741 self.abstract_class = true
2742 end
2743
2744 class Post < CachedModel
2745 end
2746
2747 CachedModel.abstract_class?
2748 => true
2749
2750 Post.abstract_class?
2751 => false
2752
2753 Post.base_class
2754 => Post
2755
2756 Post.table_name
2757 => 'posts'
2758
2759 * Allow :dependent options to be used with polymorphic joins. #3820 *Rick Olson*
2760
2761 class Foo < ActiveRecord::Base
2762 has_many :attachments, :as => :attachable, :dependent => :delete_all
2763 end
2764
2765 * Nicer error message on has_many :through when :through reflection can not be found. #4042 *court3nay*
2766
2767 * Upgrade to Transaction::Simple 1.3 *Jamis Buck*
2768
2769 * Catch FixtureClassNotFound when using instantiated fixtures on a fixture that has no ActiveRecord model *Rick Olson*
2770
2771 * Allow ordering of calculated results and/or grouped fields in calculations *solo@gatelys.com*
2772
2773 * Make ActiveRecord::Base#save! return true instead of nil on success. #4173 *johan@johansorensen.com*
2774
2775 * Dynamically set allow_concurrency. #4044 *Stefan Kaes*
2776
2777 * Added Base#to_xml that'll turn the current record into a XML representation [David Heinemeier Hansson]. Example:
2778
2779 topic.to_xml
2780
2781 ...returns:
2782
2783 <?xml version="1.0" encoding="UTF-8"?>
2784 <topic>
2785 <title>The First Topic</title>
2786 <author-name>David</author-name>
2787 <id type="integer">1</id>
2788 <approved type="boolean">false</approved>
2789 <replies-count type="integer">0</replies-count>
2790 <bonus-time type="datetime">2000-01-01 08:28:00</bonus-time>
2791 <written-on type="datetime">2003-07-16 09:28:00</written-on>
2792 <content>Have a nice day</content>
2793 <author-email-address>david@loudthinking.com</author-email-address>
2794 <parent-id></parent-id>
2795 <last-read type="date">2004-04-15</last-read>
2796 </topic>
2797
2798 ...and you can configure with:
2799
2800 topic.to_xml(:skip_instruct => true, :except => [ :id, bonus_time, :written_on, replies_count ])
2801
2802 ...that'll return:
2803
2804 <topic>
2805 <title>The First Topic</title>
2806 <author-name>David</author-name>
2807 <approved type="boolean">false</approved>
2808 <content>Have a nice day</content>
2809 <author-email-address>david@loudthinking.com</author-email-address>
2810 <parent-id></parent-id>
2811 <last-read type="date">2004-04-15</last-read>
2812 </topic>
2813
2814 You can even do load first-level associations as part of the document:
2815
2816 firm.to_xml :include => [ :account, :clients ]
2817
2818 ...that'll return something like:
2819
2820 <?xml version="1.0" encoding="UTF-8"?>
2821 <firm>
2822 <id type="integer">1</id>
2823 <rating type="integer">1</rating>
2824 <name>37signals</name>
2825 <clients>
2826 <client>
2827 <rating type="integer">1</rating>
2828 <name>Summit</name>
2829 </client>
2830 <client>
2831 <rating type="integer">1</rating>
2832 <name>Microsoft</name>
2833 </client>
2834 </clients>
2835 <account>
2836 <id type="integer">1</id>
2837 <credit-limit type="integer">50</credit-limit>
2838 </account>
2839 </firm>
2840
2841 * Allow :counter_cache to take a column name for custom counter cache columns *Jamis Buck*
2842
2843 * Documentation fixes for :dependent *robby@planetargon.com*
2844
2845 * Stop the MySQL adapter crashing when views are present. #3782 *Jonathan Viney*
2846
2847 * Don't classify the belongs_to class, it is already singular #4117 *keithm@infused.org*
2848
2849 * Allow set_fixture_class to take Classes instead of strings for a class in a module. Raise FixtureClassNotFound if a fixture can't load. *Rick Olson*
2850
2851 * Fix quoting of inheritance column for STI eager loading #4098 *Jonathan Viney <jonathan@bluewire.net.nz>*
2852
2853 * Added smarter table aliasing for eager associations for multiple self joins #3580 *Rick Olson*
2854
2855 * The first time a table is referenced in a join, no alias is used.
2856 * After that, the parent class name and the reflection name are used.
2857
2858 Tree.find(:all, :include => :children) # LEFT OUTER JOIN trees AS tree_children ...
2859
2860 * Any additional join references get a numerical suffix like '_2', '_3', etc.
2861
2862 * Fixed eager loading problems with single-table inheritance #3580 [Rick Olson]. Post.find(:all, :include => :special_comments) now returns all posts, and any special comments that the posts may have. And made STI work with has_many :through and polymorphic belongs_to.
2863
2864 * Added cascading eager loading that allows for queries like Author.find(:all, :include=> { :posts=> :comments }), which will fetch all authors, their posts, and the comments belonging to those posts in a single query (using LEFT OUTER JOIN) #3913 [anna@wota.jp]. Examples:
2865
2866 # cascaded in two levels
2867 >> Author.find(:all, :include=>{:posts=>:comments})
2868 => authors
2869 +- posts
2870 +- comments
2871
2872 # cascaded in two levels and normal association
2873 >> Author.find(:all, :include=>[{:posts=>:comments}, :categorizations])
2874 => authors
2875 +- posts
2876 +- comments
2877 +- categorizations
2878
2879 # cascaded in two levels with two has_many associations
2880 >> Author.find(:all, :include=>{:posts=>[:comments, :categorizations]})
2881 => authors
2882 +- posts
2883 +- comments
2884 +- categorizations
2885
2886 # cascaded in three levels
2887 >> Company.find(:all, :include=>{:groups=>{:members=>{:favorites}}})
2888 => companies
2889 +- groups
2890 +- members
2891 +- favorites
2892
2893 * Make counter cache work when replacing an association #3245 *eugenol@gmail.com*
2894
2895 * Make migrations verbose *Jamis Buck*
2896
2897 * Make counter_cache work with polymorphic belongs_to *Jamis Buck*
2898
2899 * Fixed that calling HasOneProxy#build_model repeatedly would cause saving to happen #4058 *anna@wota.jp*
2900
2901 * Added Sybase database adapter that relies on the Sybase Open Client bindings (see http://raa.ruby-lang.org/project/sybase-ctlib) #3765 [John Sheets]. It's almost completely Active Record compliant (including migrations), but has the following caveats:
2902
2903 * Does not support DATE SQL column types; use DATETIME instead.
2904 * Date columns on HABTM join tables are returned as String, not Time.
2905 * Insertions are potentially broken for :polymorphic join tables
2906 * BLOB column access not yet fully supported
2907
2908 * Clear stale, cached connections left behind by defunct threads. *Jeremy Kemper*
2909
2910 * CHANGED DEFAULT: set ActiveRecord::Base.allow_concurrency to false. Most AR usage is in single-threaded applications. *Jeremy Kemper*
2911
2912 * Renamed the "oci" adapter to "oracle", but kept the old name as an alias #4017 *Michael Schoen*
2913
2914 * Fixed that Base.save should always return false if the save didn't succeed, including if it has halted by before_save's #1861, #2477 *David Heinemeier Hansson*
2915
2916 * Speed up class -> connection caching and stale connection verification. #3979 *Stefan Kaes*
2917
2918 * Add set_fixture_class to allow the use of table name accessors with models which use set_table_name. *Kevin Clark*
2919
2920 * Added that fixtures to placed in subdirectories of the main fixture files are also loaded #3937 *dblack@wobblini.net*
2921
2922 * Define attribute query methods to avoid method_missing calls. #3677 *Jonathan Viney*
2923
2924 * ActiveRecord::Base.remove_connection explicitly closes database connections and doesn't corrupt the connection cache. Introducing the disconnect! instance method for the PostgreSQL, MySQL, and SQL Server adapters; implementations for the others are welcome. #3591 *Simon Stapleton, Tom Ward*
2925
2926 * Added support for nested scopes #3407 [anna@wota.jp]. Examples:
2927
2928 Developer.with_scope(:find => { :conditions => "salary > 10000", :limit => 10 }) do
2929 Developer.find(:all) # => SELECT * FROM developers WHERE (salary > 10000) LIMIT 10
2930
2931 # inner rule is used. (all previous parameters are ignored)
2932 Developer.with_exclusive_scope(:find => { :conditions => "name = 'Jamis'" }) do
2933 Developer.find(:all) # => SELECT * FROM developers WHERE (name = 'Jamis')
2934 end
2935
2936 # parameters are merged
2937 Developer.with_scope(:find => { :conditions => "name = 'Jamis'" }) do
2938 Developer.find(:all) # => SELECT * FROM developers WHERE (( salary > 10000 ) AND ( name = 'Jamis' )) LIMIT 10
2939 end
2940 end
2941
2942 * Fixed db2 connection with empty user_name and auth options #3622 *phurley@gmail.com*
2943
2944 * Fixed validates_length_of to work on UTF-8 strings by using characters instead of bytes #3699 *Masao Mutoh*
2945
2946 * Fixed that reflections would bleed across class boundaries in single-table inheritance setups #3796 *Lars Pind*
2947
2948 * Added calculations: Base.count, Base.average, Base.sum, Base.minimum, Base.maxmium, and the generic Base.calculate. All can be used with :group and :having. Calculations and statitics need no longer require custom SQL. #3958 [Rick Olson]. Examples:
2949
2950 Person.average :age
2951 Person.minimum :age
2952 Person.maximum :age
2953 Person.sum :salary, :group => :last_name
2954
2955 * Renamed Errors#count to Errors#size but kept an alias for the old name (and included an alias for length too) #3920 *Luke Redpath*
2956
2957 * Reflections don't attempt to resolve module nesting of association classes. Simplify type computation. *Jeremy Kemper*
2958
2959 * Improved the Oracle OCI Adapter with better performance for column reflection (from #3210), fixes to migrations (from #3476 and #3742), tweaks to unit tests (from #3610), and improved documentation (from #2446) #3879 *Aggregated by schoenm@earthlink.net*
2960
2961 * Fixed that the schema_info table used by ActiveRecord::Schema.define should respect table pre- and suffixes #3834 *rubyonrails@atyp.de*
2962
2963 * Added :select option to Base.count that'll allow you to select something else than * to be counted on. Especially important for count queries using DISTINCT #3839 *Stefan Kaes*
2964
2965 * Correct syntax error in mysql DDL, and make AAACreateTablesTest run first *Bob Silva*
2966
2967 * Allow :include to be used with has_many :through associations #3611 *Michael Schoen*
2968
2969 * PostgreSQL: smarter schema dumps using pk_and_sequence_for(table). #2920 *Blair Zajac*
2970
2971 * SQLServer: more compatible limit/offset emulation. #3779 *Tom Ward*
2972
2973 * Polymorphic join support for has_one associations (has_one :foo, :as => :bar) #3785 *Rick Olson*
2974
2975 * PostgreSQL: correctly parse negative integer column defaults. #3776 *bellis@deepthought.org*
2976
2977 * Fix problems with count when used with :include *Jeremy Hopple and Kevin Clark*
2978
2979 * ActiveRecord::RecordInvalid now states which validations failed in its default error message *Tobias Lütke*
2980
2981 * Using AssociationCollection#build with arrays of hashes should call build, not create *David Heinemeier Hansson*
2982
2983