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a893672 @rafaelfranca Add CHANGELOG entry [ci skip]
rafaelfranca authored
1 ## Rails 3.2.8 ##
2
81542f9 @fxn removes the deprecation of update_attribute
fxn authored
3 * Removes the deprecation of `update_attribute`. *fxn*
4
857697b @rafaelfranca Fix CHANGELOGS
rafaelfranca authored
5 * Reverted the deprecation of `composed_of`. *Rafael Mendonça França*
6
0c52702 @jonleighton Revert "Deprecate :finder_sql, :counter_sql, :insert_sql, :delete_sql."
jonleighton authored
7 * Reverted the deprecation of `*_sql` association options. They will
857697b @rafaelfranca Fix CHANGELOGS
rafaelfranca authored
8 be deprecated in 4.0 instead. *Jon Leighton*
9
10 * Do not eager load AR session store. ActiveRecord::SessionStore depends on the abstract store
11 in Action Pack. Eager loading this class would break client code that eager loads Active Record
12 standalone.
13 Fixes #7160
0c52702 @jonleighton Revert "Deprecate :finder_sql, :counter_sql, :insert_sql, :delete_sql."
jonleighton authored
14
857697b @rafaelfranca Fix CHANGELOGS
rafaelfranca authored
15 *Xavier Noria*
6764b7b @spastorino Add missing CHANGELOG entries
spastorino authored
16
a893672 @rafaelfranca Add CHANGELOG entry [ci skip]
rafaelfranca authored
17 * Do not set RAILS_ENV to "development" when using `db:test:prepare` and related rake tasks.
18 This was causing the truncation of the development database data when using RSpec.
857697b @rafaelfranca Fix CHANGELOGS
rafaelfranca authored
19 Fixes #7175.
a893672 @rafaelfranca Add CHANGELOG entry [ci skip]
rafaelfranca authored
20
21 *Rafael Mendonça França*
22
6764b7b @spastorino Add missing CHANGELOG entries
spastorino authored
23 * update_columns added. *Sebastián Martínez*
24
d1b9cf2 @tenderlove updating release date
tenderlove authored
25 ## Rails 3.2.7 (Jul 26, 2012) ##
2109fd5 @fxn registers the deprecation of update_attribute in the CHANGELOG
fxn authored
26
a79bfa9 @jonleighton Deprecate :finder_sql, :counter_sql, :insert_sql, :delete_sql.
jonleighton authored
27 * `:finder_sql` and `:counter_sql` options on collection associations
28 are deprecated. Please transition to using scopes.
29
30 *Jon Leighton*
31
32 * `:insert_sql` and `:delete_sql` options on `has_and_belongs_to_many`
33 associations are deprecated. Please transition to using `has_many
34 :through`
35
36 *Jon Leighton*
37
857697b @rafaelfranca Fix CHANGELOGS
rafaelfranca authored
38 * `composed_of` has been deprecated. You'll have to write your own accessor
39 and mutator methods if you'd like to use value objects to represent some
40 portion of your models.
41
42 *Steve Klabnik*
43
2f930df @rafaelfranca Revert "Add update_columns and the suggestion of using update_columns
rafaelfranca authored
44 * `update_attribute` has been deprecated. Use `update_column` if
2109fd5 @fxn registers the deprecation of update_attribute in the CHANGELOG
fxn authored
45 you want to bypass mass-assignment protection, validations, callbacks,
46 and touching of updated_at. Otherwise please use `update_attributes`.
47
48 *Steve Klabnik*
49
8381d39 @tenderlove updating changelogs
tenderlove authored
50 ## Rails 3.2.6 (Jun 12, 2012) ##
959fb8e @jonleighton Revert "Perf: Don't load the association for #delete_all."
jonleighton authored
51
ceb8ec3 @tenderlove updating changelogs with security fixes
tenderlove authored
52 * protect against the nesting of hashes changing the
53 table context in the next call to build_from_hash. This fix
54 covers this case as well.
55
8381d39 @tenderlove updating changelogs
tenderlove authored
56 CVE-2012-2695
57
959fb8e @jonleighton Revert "Perf: Don't load the association for #delete_all."
jonleighton authored
58 * Revert earlier 'perf fix' (see 3.2.4 changelog / GH #6289). This
59 change introduced a regression (GH #6609). assoc.clear and
60 assoc.delete_all have loaded the association before doing the delete
61 since at least Rails 2.3. Doing the delete without loading the
62 records means that the `before_remove` and `after_remove` callbacks do
63 not get invoked. Therefore, this change was less a fix a more an
64 optimisation, which should only have gone into master.
65
66 *Jon Leighton*
67
b13d89e @rafaelfranca Add release date of 3.2.5 on the CHANGELOG
rafaelfranca authored
68 ## Rails 3.2.5 (Jun 1, 2012) ##
69
70 * Restore behavior of Active Record 3.2.3 scopes.
71 A series of commits relating to preloading and scopes caused a regression.
72
73 *Andrew White*
74
75
d3e5d1c @tenderlove updating changelogs
tenderlove authored
76 ## Rails 3.2.4 (May 31, 2012) ##
2c21a2f @benedikt Revert "Revert "Fix #5667. Preloading should ignore scoping.""
benedikt authored
77
b98d1e2 @jonleighton Perf: Don't load the association for #delete_all.
jonleighton authored
78 * Perf fix: Don't load the records when doing assoc.delete_all.
79 GH #6289. *Jon Leighton*
80
2c21a2f @benedikt Revert "Revert "Fix #5667. Preloading should ignore scoping.""
benedikt authored
81 * Association preloading shouldn't be affected by the current scoping.
82 This could cause infinite recursion and potentially other problems.
83 See GH #5667. *Jon Leighton*
84
d3e5d1c @tenderlove updating changelogs
tenderlove authored
85 * Datetime attributes are forced to be changed. GH #3965
86
87 * Fix attribute casting. GH #5549
88
89 * Fix #5667. Preloading should ignore scoping.
90
44aca7b @tenderlove adding security notifications to CHANGELOGs
tenderlove authored
91 * Predicate builder should not recurse for determining where columns.
92 Thanks to Ben Murphy for reporting this! CVE-2012-2661
93
b13d89e @rafaelfranca Add release date of 3.2.5 on the CHANGELOG
rafaelfranca authored
94
3005f58 @rafaelfranca Add release data to Rails 3.2.3
rafaelfranca authored
95 ## Rails 3.2.3 (March 30, 2012) ##
3bfd651 @vijaydev changelog updates [ci skip]
vijaydev authored
96
90d9635 @pixeltrix Add dynamic find_or_create_by_{attribute}! method.
pixeltrix authored
97 * Added find_or_create_by_{attribute}! dynamic method. *Andrew White*
98
3bfd651 @vijaydev changelog updates [ci skip]
vijaydev authored
99 * Whitelist all attribute assignment by default. Change the default for newly generated applications to whitelist all attribute assignment. Also update the generated model classes so users are reminded of the importance of attr_accessible. *NZKoz*
100
101 * Update ActiveRecord::AttributeMethods#attribute_present? to return false for empty strings. *Jacobkg*
102
103 * Fix associations when using per class databases. *larskanis*
104
105 * Revert setting NOT NULL constraints in add_timestamps *fxn*
106
107 * Fix mysql to use proper text types. Fixes #3931. *kennyj*
108
109 * Fix #5069 - Protect foreign key from mass assignment through association builder. *byroot*
110
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
111
112 ## Rails 3.2.2 (March 1, 2012) ##
113
114 * No changes.
115
116
97e8d1d @fxn CHANGELOG revision for v3.2.1
fxn authored
117 ## Rails 3.2.1 (January 26, 2012) ##
fab664a @jonleighton Fix another race condition.
jonleighton authored
118
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
119 * The threshold for auto EXPLAIN is ignored if there's no logger. *fxn*
120
97e8d1d @fxn CHANGELOG revision for v3.2.1
fxn authored
121 * Call `to_s` on the value passed to `table_name=`, in particular symbols
122 are supported (regression). *Sergey Nartimov*
123
fab664a @jonleighton Fix another race condition.
jonleighton authored
124 * Fix possible race condition when two threads try to define attribute
97e8d1d @fxn CHANGELOG revision for v3.2.1
fxn authored
125 methods for the same class. *Jon Leighton*
126
fab664a @jonleighton Fix another race condition.
jonleighton authored
127
f36dcaf @dhh Preparing for 3.2.0 release
dhh authored
128 ## Rails 3.2.0 (January 20, 2012) ##
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
129
4c5b73f @tenderlove Merge pull request #4531 from exviva/pessimistic_with_lock
tenderlove authored
130 * Added a `with_lock` method to ActiveRecord objects, which starts
131 a transaction, locks the object (pessimistically) and yields to the block.
132 The method takes one (optional) parameter and passes it to `lock!`.
133
134 Before:
135
136 class Order < ActiveRecord::Base
137 def cancel!
138 transaction do
139 lock!
140 # ... cancelling logic
141 end
142 end
143 end
144
145 After:
146
147 class Order < ActiveRecord::Base
148 def cancel!
149 with_lock do
150 # ... cancelling logic
151 end
152 end
153 end
154
155 *Olek Janiszewski*
156
3f16f5b @spastorino Add CHANGELOG entry
spastorino authored
157 * 'on' and 'ON' boolean columns values are type casted to true
158 *Santiago Pastorino*
159
35a1744 @drogus Allow to run migrations with given scope, with SCOPE=<scope>
drogus authored
160 * Added ability to run migrations only for given scope, which allows
161 to run migrations only from one engine (for example to revert changes
162 from engine that you want to remove).
163
164 Example:
165 rake db:migrate SCOPE=blog
166
4c5b73f @tenderlove Merge pull request #4531 from exviva/pessimistic_with_lock
tenderlove authored
167 *Piotr Sarnacki*
35a1744 @drogus Allow to run migrations with given scope, with SCOPE=<scope>
drogus authored
168
169 * Migrations copied from engines are now scoped with engine's name,
170 for example 01_create_posts.blog.rb. *Piotr Sarnacki*
171
de24ed9 @fxn removes the convenience instance version of AR::Base.silence_auto_exp…
fxn authored
172 * Implements `AR::Base.silence_auto_explain`. This method allows the user to
173 selectively disable automatic EXPLAINs within a block. *fxn*
0be5ada @fxn implements AR::Base(.|#)silence_auto_explain
fxn authored
174
0306f82 @fxn implements automatic EXPLAIN logging for slow queries
fxn authored
175 * Implements automatic EXPLAIN logging for slow queries.
176
177 A new configuration parameter `config.active_record.auto_explain_threshold_in_seconds`
178 determines what's to be considered a slow query. Setting that to `nil` disables
179 this feature. Defaults are 0.5 in development mode, and `nil` in test and production
180 modes.
181
182 As of this writing there's support for SQLite, MySQL (mysql2 adapter), and
183 PostgreSQL.
184
185 *fxn*
a382d60 @bogdan ActiveRecord::Relation#pluck method
bogdan authored
186
187 * Implemented ActiveRecord::Relation#pluck method
188
189 Method returns Array of column value from table under ActiveRecord model
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
190
a382d60 @bogdan ActiveRecord::Relation#pluck method
bogdan authored
191 Client.pluck(:id)
192
193 *Bogdan Gusiev*
194
0e2477b @tenderlove Automatic closure of connections in threads is deprecated. For example
tenderlove authored
195 * Automatic closure of connections in threads is deprecated. For example
196 the following code is deprecated:
197
198 Thread.new { Post.find(1) }.join
199
200 It should be changed to close the database connection at the end of
201 the thread:
202
203 Thread.new {
204 Post.find(1)
205 Post.connection.close
206 }.join
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
207
0e2477b @tenderlove Automatic closure of connections in threads is deprecated. For example
tenderlove authored
208 Only people who spawn threads in their application code need to worry
209 about this change.
210
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
211 * Deprecated:
212
213 * `set_table_name`
214 * `set_inheritance_column`
7af719e @jonleighton Deprecate set_sequence_name in favour of self.sequence_name=
jonleighton authored
215 * `set_sequence_name`
1a474cc @jonleighton Deprecate set_primary_key in favour of self.primary_key=
jonleighton authored
216 * `set_primary_key`
f3c84dc @jonleighton Deprecate set_locking_column in favour of self.locking_column=
jonleighton authored
217 * `set_locking_column`
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
218
219 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
220
221 class Project < ActiveRecord::Base
222 self.table_name = "project"
223 end
224
34609d6 @jonleighton Deprecate set_inheritance_column in favour of self.inheritance_column=
jonleighton authored
225 Or define your own `self.table_name` method:
226
0b72a04 @jonleighton Deprecate set_table_name in favour of self.table_name= or defining yo…
jonleighton authored
227 class Post < ActiveRecord::Base
228 def self.table_name
229 "special_" + super
230 end
231 end
232 Post.table_name # => "special_posts"
233
234 *Jon Leighton*
235
10834e9 @joshsusser changelog & docs for GeneratedFeatureMethods
joshsusser authored
236 * Generated association methods are created within a separate module to allow overriding and
237 composition using `super`. For a class named `MyModel`, the module is named
238 `MyModel::GeneratedFeatureMethods`. It is included into the model class immediately after
239 the `generated_attributes_methods` module defined in ActiveModel, so association methods
240 override attribute methods of the same name. *Josh Susser*
241
e7b7b44 @fxn implements AR::Relation#explain
fxn authored
242 * Implemented ActiveRecord::Relation#explain. *fxn*
243
562583c @jonleighton Add ActiveRecord::Relation#uniq for toggling DISTINCT in the SQL query
jonleighton authored
244 * Add ActiveRecord::Relation#uniq for generating unique queries.
245
246 Before:
247
248 Client.select('DISTINCT name')
249
250 After:
251
252 Client.select(:name).uniq
253
254 This also allows you to revert the unqueness in a relation:
255
256 Client.select(:name).uniq.uniq(false)
257
258 *Jon Leighton*
259
69dcd45 @vjebelev AR changes to support creating ordered (asc, desc) indexes
vjebelev authored
260 * Support index sort order in sqlite, mysql and postgres adapters. *Vlad Jebelev*
261
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
262 * Allow the :class_name option for associations to take a symbol (:Client) in addition to
263 a string ('Client').
264
265 This is to avoid confusing newbies, and to be consistent with the fact that other options
266 like :foreign_key already allow a symbol or a string.
267
268 *Jon Leighton*
269
270 * In development mode the db:drop task also drops the test database. For symmetry with
271 the db:create task. *Dmitriy Kiriyenko*
272
273 * Added ActiveRecord::Base.store for declaring simple single-column key/value stores *DHH*
274
275 class User < ActiveRecord::Base
276 store :settings, accessors: [ :color, :homepage ]
277 end
278
279 u = User.new(color: 'black', homepage: '37signals.com')
280 u.color # Accessor stored attribute
281 u.settings[:country] = 'Denmark' # Any attribute, even if not specified with an accessor
282
283
284 * MySQL: case-insensitive uniqueness validation avoids calling LOWER when
285 the column already uses a case-insensitive collation. Fixes #561.
286
287 *Joseph Palermo*
288
289 * Transactional fixtures enlist all active database connections. You can test
290 models on different connections without disabling transactional fixtures.
291
292 *Jeremy Kemper*
293
294 * Add first_or_create, first_or_create!, first_or_initialize methods to Active Record. This is a
295 better approach over the old find_or_create_by dynamic methods because it's clearer which
296 arguments are used to find the record and which are used to create it:
297
298 User.where(:first_name => "Scarlett").first_or_create!(:last_name => "Johansson")
299
300 *Andrés Mejía*
301
302 * Fix nested attributes bug where _destroy parameter is taken into account
303 during :reject_if => :all_blank (fixes #2937)
304
305 *Aaron Christy*
2809375 @fxn registers 2483460 in the CHANGELOG
fxn authored
306
04d5eae @bdurand Add ActiveSupport::Cache::NullStore to expose caching interface witho…
bdurand authored
307 * Add ActiveSupport::Cache::NullStore for use in development and testing.
308
309 *Brian Durand*
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
310
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
311
312 ## Rails 3.1.3 (November 20, 2011) ##
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
313
fec85cf @jonleighton Perf fix
jonleighton authored
314 * Perf fix: If we're deleting all records in an association, don't add a IN(..) clause
315 to the query. *GH 3672*
316
317 *Jon Leighton*
318
9c37416 @jonleighton Verify that #3690 has been closed by previous changes to the mysql
jonleighton authored
319 * Fix bug with referencing other mysql databases in set_table_name. *GH 3690*
320
2ef4947 @jonleighton Add missing CHANGELOG entry for #3678. Closes #3678.
jonleighton authored
321 * Fix performance bug with mysql databases on a server with lots of other databses. *GH 3678*
322
323 *Christos Zisopoulos and Kenny J*
324
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
325
326 ## Rails 3.1.2 (November 18, 2011) ##
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
327
da02f79 @jonleighton Sync CHANGELOGs from 3-1-stable
jonleighton authored
328 * Fix bug with PostgreSQLAdapter#indexes. When the search path has multiple schemas, spaces
329 were not being stripped from the schema names after the first.
330
331 *Sean Kirby*
332
333 * Preserve SELECT columns on the COUNT for finder_sql when possible. *GH 3503*
334
335 *Justin Mazzi*
336
337 * Reset prepared statement cache when schema changes impact statement results. *GH 3335*
338
339 *Aaron Patterson*
340
341 * Postgres: Do not attempt to deallocate a statement if the connection is no longer active.
342
343 *Ian Leitch*
344
345 * Prevent QueryCache leaking database connections. *GH 3243*
346
347 *Mark J. Titorenko*
348
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
349 * Fix bug where building the conditions of a nested through association could potentially
350 modify the conditions of the through and/or source association. If you have experienced
351 bugs with conditions appearing in the wrong queries when using nested through associations,
352 this probably solves your problems. *GH #3271*
353
354 *Jon Leighton*
355
356 * If a record is removed from a has_many :through, all of the join records relating to that
357 record should also be removed from the through association's target.
358
359 *Jon Leighton*
360
361 * Fix adding multiple instances of the same record to a has_many :through. *GH #3425*
362
363 *Jon Leighton*
364
365 * Fix creating records in a through association with a polymorphic source type. *GH #3247*
366
367 *Jon Leighton*
368
fb0bf3c @kennyj Fixed an issue id false option is ignored on mysql/mysql2 (fix #3440)
kennyj authored
369 * MySQL: use the information_schema than the describe command when we look for a primary key. *GH #3440*
370
371 *Kenny J*
372
db743ff @rafaelfranca Fix my name in the CHANGELOG to follow the convention
rafaelfranca authored
373
281272a @jonleighton Convert CHANGELOGs to Markdown format.
jonleighton authored
374 ## Rails 3.1.1 (October 7, 2011) ##
375
376 * Add deprecation for the preload_associations method. Fixes #3022.
377
378 *Jon Leighton*
379
380 * Don't require a DB connection when loading a model that uses set_primary_key. GH #2807.
381
382 *Jon Leighton*
383
384 * Fix using select() with a habtm association, e.g. Person.friends.select(:name). GH #3030 and
385 \#2923.
386
387 *Hendy Tanata*
388
389 * Fix belongs_to polymorphic with custom primary key on target. GH #3104.
390
391 *Jon Leighton*
392
393 * CollectionProxy#replace should change the DB records rather than just mutating the array.
394 Fixes #3020.
395
396 *Jon Leighton*
397
398 * LRU cache in mysql and sqlite are now per-process caches.
399
400 * lib/active_record/connection_adapters/mysql_adapter.rb: LRU cache keys are per process id.
401 * lib/active_record/connection_adapters/sqlite_adapter.rb: ditto
402 *Aaron Patterson*
403
404 * Support bulk change_table in mysql2 adapter, as well as the mysql one. *Jon Leighton*
405
406 * If multiple parameters are sent representing a date, and some are blank, the
407 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]
408 * ActiveRecord::Base.establish_connection now takes a string that contains
409 a URI that specifies the connection configuration. For example:
410 ActiveRecord::Base.establish_connection 'postgres://localhost/foo'
411
412 * 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.
413
414 So if you were doing this and expecting the second argument to be nil:
415
416 User.find_by_username_and_group("sikachu")
417
418 You'll now get `ArgumentError: wrong number of arguments (1 for 2).` You'll then have to do this:
419
420 User.find_by_username_and_group("sikachu", nil)
421
422 *Prem Sichanugrist*
423
424
425 ## Rails 3.1.0 (August 30, 2011) ##
426
427 * Add a proxy_association method to association proxies, which can be called by association
428 extensions to access information about the association. This replaces proxy_owner etc with
429 proxy_association.owner.
430
431 *Jon Leighton*
432
433 * ActiveRecord::MacroReflection::AssociationReflection#build_record has a new method signature.
434
435 Before: def build_association(*options)
436 After: def build_association(*options, &block)
437
438 Users who are redefining this method to extend functionality should ensure that the block is
439 passed through to ActiveRecord::Base#new.
440
441 This change is necessary to fix https://github.com/rails/rails/issues/1842.
442
443 *Jon Leighton*
444
445 * AR#pluralize_table_names can be used to singularize/pluralize table name of an individual model:
446
447 class User < ActiveRecord::Base
448 self.pluralize_table_names = false
449 end
450
451 Previously this could only be set globally for all models through ActiveRecord::Base.pluralize_table_names. *Guillermo Iguaran*
452
453 * Add block setting of attributes to singular associations:
454
455 class User < ActiveRecord::Base
456 has_one :account
457 end
458
459 user.build_account{ |a| a.credit_limit => 100.0 }
460
461 The block is called after the instance has been initialized. *Andrew White*
462
463 * 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*
464
465 * CSV Fixtures are deprecated and support will be removed in Rails 3.2.0
466
467 * AR#new, AR#create, AR#create!, AR#update_attributes and AR#update_attributes! all accept a second hash as option that allows you
468 to specify which role to consider when assigning attributes. This is built on top of ActiveModel's
469 new mass assignment capabilities:
470
471 class Post < ActiveRecord::Base
472 attr_accessible :title
473 attr_accessible :title, :published_at, :as => :admin
474 end
475
476 Post.new(params[:post], :as => :admin)
477
478 assign_attributes() with similar API was also added and attributes=(params, guard) was deprecated.
479
480 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.
481
482 *Josh Kalderimis*
483
484 * default_scope can take a block, lambda, or any other object which responds to `call` for lazy
485 evaluation:
486
487 default_scope { ... }
488 default_scope lambda { ... }
489 default_scope method(:foo)
490
491 This feature was originally implemented by Tim Morgan, but was then removed in favour of
492 defining a 'default_scope' class method, but has now been added back in by Jon Leighton.
493 The relevant lighthouse ticket is #1812.
494
495 * Default scopes are now evaluated at the latest possible moment, to avoid problems where
496 scopes would be created which would implicitly contain the default scope, which would then
497 be impossible to get rid of via Model.unscoped.
498
499 Note that this means that if you are inspecting the internal structure of an
500 ActiveRecord::Relation, it will *not* contain the default scope, though the resulting
501 query will do. You can get a relation containing the default scope by calling
502 ActiveRecord#with_default_scope, though this is not part of the public API.
503
504 *Jon Leighton*
505
506 * If you wish to merge default scopes in special ways, it is recommended to define your default
507 scope as a class method and use the standard techniques for sharing code (inheritance, mixins,
508 etc.):
509
510 class Post < ActiveRecord::Base
511 def self.default_scope
512 where(:published => true).where(:hidden => false)
513 end
514 end
515
516 *Jon Leighton*
517
518 * PostgreSQL adapter only supports PostgreSQL version 8.2 and higher.
519
520 * ConnectionManagement middleware is changed to clean up the connection pool
521 after the rack body has been flushed.
522
523 * Added an update_column method on ActiveRecord. This new method updates a given attribute on an object, skipping validations and callbacks.
524 It is recommended to use #update_attribute unless you are sure you do not want to execute any callback, including the modification of
525 the updated_at column. It should not be called on new records.
526 Example:
527
528 User.first.update_column(:name, "sebastian") # => true
529
530 *Sebastian Martinez*
531
532 * Associations with a :through option can now use *any* association as the
533 through or source association, including other associations which have a
534 :through option and has_and_belongs_to_many associations
535
536 *Jon Leighton*
537
538 * The configuration for the current database connection is now accessible via
539 ActiveRecord::Base.connection_config. *fxn*
540
541 * limits and offsets are removed from COUNT queries unless both are supplied.
542 For example:
543
544 People.limit(1).count # => 'SELECT COUNT(*) FROM people'
545 People.offset(1).count # => 'SELECT COUNT(*) FROM people'
546 People.limit(1).offset(1).count # => 'SELECT COUNT(*) FROM people LIMIT 1 OFFSET 1'
547
548 *lighthouse #6262*
549
550 * ActiveRecord::Associations::AssociationProxy has been split. There is now an Association class
551 (and subclasses) which are responsible for operating on associations, and then a separate,
552 thin wrapper called CollectionProxy, which proxies collection associations.
553
554 This prevents namespace pollution, separates concerns, and will allow further refactorings.
555
556 Singular associations (has_one, belongs_to) no longer have a proxy at all. They simply return
557 the associated record or nil. This means that you should not use undocumented methods such
558 as bob.mother.create - use bob.create_mother instead.
559
560 *Jon Leighton*
561
562 * Make has_many :through associations work correctly when you build a record and then save it. This
563 requires you to set the :inverse_of option on the source reflection on the join model, like so:
564
565 class Post < ActiveRecord::Base
566 has_many :taggings
567 has_many :tags, :through => :taggings
568 end
569
570 class Tagging < ActiveRecord::Base
571 belongs_to :post
572 belongs_to :tag, :inverse_of => :tagging # :inverse_of must be set!
573 end
574
575 class Tag < ActiveRecord::Base
576 has_many :taggings
577 has_many :posts, :through => :taggings
578 end
579
580 post = Post.first
581 tag = post.tags.build :name => "ruby"
582 tag.save # will save a Taggable linking to the post
583
584 *Jon Leighton*
585
586 * Support the :dependent option on has_many :through associations. For historical and practical
587 reasons, :delete_all is the default deletion strategy employed by association.delete(*records),
588 despite the fact that the default strategy is :nullify for regular has_many. Also, this only
589 works at all if the source reflection is a belongs_to. For other situations, you should directly
590 modify the through association.
591
592 *Jon Leighton*
593
594 * Changed the behaviour of association.destroy for has_and_belongs_to_many and has_many :through.
595 From now on, 'destroy' or 'delete' on an association will be taken to mean 'get rid of the link',
596 not (necessarily) 'get rid of the associated records'.
597
598 Previously, has_and_belongs_to_many.destroy(*records) would destroy the records themselves. It
599 would not delete any records in the join table. Now, it deletes the records in the join table.
600
601 Previously, has_many_through.destroy(*records) would destroy the records themselves, and the
602 records in the join table. [Note: This has not always been the case; previous version of Rails
603 only deleted the records themselves.] Now, it destroys only the records in the join table.
604
605 Note that this change is backwards-incompatible to an extent, but there is unfortunately no
606 way to 'deprecate' it before changing it. The change is being made in order to have
607 consistency as to the meaning of 'destroy' or 'delete' across the different types of associations.
608
609 If you wish to destroy the records themselves, you can do records.association.each(&:destroy)
610
611 *Jon Leighton*
612
613 * 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*
614
615 Example:
616
617 change_table(:users, :bulk => true) do |t|
618 t.string :company_name
619 t.change :birthdate, :datetime
620 end
621
622 This will now result in:
623
624 ALTER TABLE `users` ADD COLUMN `company_name` varchar(255), CHANGE `updated_at` `updated_at` datetime DEFAULT NULL
625
626 * Removed support for accessing attributes on a has_and_belongs_to_many join table. This has been
627 documented as deprecated behaviour since April 2006. Please use has_many :through instead.
628 *Jon Leighton*
629
630 * Added a create_association! method for has_one and belongs_to associations. *Jon Leighton*
631
632 * Migration files generated from model and constructive migration generators
633 (for example, add_name_to_users) use the reversible migration's `change`
634 method instead of the ordinary `up` and `down` methods. *Prem Sichanugrist*
635
636 * Removed support for interpolating string SQL conditions on associations. Instead, you should
637 use a proc, like so:
638
639 Before:
640
641 has_many :things, :conditions => 'foo = #{bar}'
642
643 After:
644
645 has_many :things, :conditions => proc { "foo = #{bar}" }
646
647 Inside the proc, 'self' is the object which is the owner of the association, unless you are
648 eager loading the association, in which case 'self' is the class which the association is within.
649
650 You can have any "normal" conditions inside the proc, so the following will work too:
651
652 has_many :things, :conditions => proc { ["foo = ?", bar] }
653
654 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
655 'record' to get the record being inserted or deleted. This is now passed as an argument to
656 the proc.
657
658 * Added ActiveRecord::Base#has_secure_password (via ActiveModel::SecurePassword) to encapsulate dead-simple password usage with BCrypt encryption and salting [DHH]. Example:
659
660 # Schema: User(name:string, password_digest:string, password_salt:string)
661 class User < ActiveRecord::Base
662 has_secure_password
663 end
664
665 user = User.new(:name => "david", :password => "", :password_confirmation => "nomatch")
666 user.save # => false, password required
667 user.password = "mUc3m00RsqyRe"
668 user.save # => false, confirmation doesn't match
669 user.password_confirmation = "mUc3m00RsqyRe"
670 user.save # => true
671 user.authenticate("notright") # => false
672 user.authenticate("mUc3m00RsqyRe") # => user
673 User.find_by_name("david").try(:authenticate, "notright") # => nil
674 User.find_by_name("david").try(:authenticate, "mUc3m00RsqyRe") # => user
675
676
677 * When a model is generated add_index is added by default for belongs_to or references columns
678
679 rails g model post user:belongs_to will generate the following:
680
681 class CreatePosts < ActiveRecord::Migration
682 def up
683 create_table :posts do |t|
684 t.belongs_to :user
685 t.timestamps
686 end
687
688 add_index :posts, :user_id
689 end
690
691 def down
692 drop_table :posts
693 end
694 end
695
696 *Santiago Pastorino*
697
698 * Setting the id of a belongs_to object will update the reference to the
699 object. [#2989 state:resolved]
700 * ActiveRecord::Base#dup and ActiveRecord::Base#clone semantics have changed
701 to closer match normal Ruby dup and clone semantics.
702 * Calling ActiveRecord::Base#clone will result in a shallow copy of the record,
703 including copying the frozen state. No callbacks will be called.
704 * Calling ActiveRecord::Base#dup will duplicate the record, including calling
705 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.
706 * Migrations can be defined as reversible, meaning that the migration system
707 will figure out how to reverse your migration. To use reversible migrations, just define the "change" method. For example:
708 class MyMigration < ActiveRecord::Migration
709 def change
710 create_table(:horses) do
711 t.column :content, :text
712 t.column :remind_at, :datetime
713 end
714 end
715 end
716
717 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.
718 * Migrations should use instance methods rather than class methods:
719 class FooMigration < ActiveRecord::Migration
720 def up
721 ...
722 end
723 end
724
725 *Aaron Patterson*
726
727 * has_one maintains the association with separate after_create/after_update instead
728 of a single after_save. *fxn*
729
730 * The following code:
731
732 Model.limit(10).scoping { Model.count }
733
734 now generates the following SQL:
735
736 SELECT COUNT(*) FROM models LIMIT 10
737
738 This may not return what you want. Instead, you may with to do something
739 like this:
740
741 Model.limit(10).scoping { Model.all.size }
742
743 *Aaron Patterson*
744
745
746 ## Rails 3.0.7 (April 18, 2011) ##
747
748 * Destroying records via nested attributes works independent of reject_if LH #6006 *Durran Jordan*
749
750 * Delegate any? and many? to Model.scoped for consistency *Andrew White*
751
752 * Quote the ORDER BY clause in batched finds - fixes #6620 *Andrew White*
753
754 * Change exists? so records are not instantiated - fixes #6127. This prevents after_find
755 and after_initialize callbacks being triggered when checking for record existence.
756 *Andrew White*
757
758 * Fix performance bug with attribute accessors which only occurred on Ruby 1.8.7, and ensure we
759 cache type-casted values when the column returned from the db contains non-standard chars.
760 *Jon Leighton*
761
762 * Fix a performance regression introduced here 86acbf1cc050c8fa8c74a10c735e467fb6fd7df8
763 related to read_attribute method *Stian Grytøyr*
764
765
766 ## Rails 3.0.6 (April 5, 2011) ##
767
768 * Un-deprecate reorder method *Sebastian Martinez*
769
770 * Extensions are applied when calling +except+ or +only+ on relations.
771 Thanks to Iain Hecker.
772
773 * Schemas set in set_table_name are respected by the mysql adapter. LH #5322
774
775 * Fixed a bug when empty? was called on a grouped Relation that wasn't loaded.
776 LH #5829
777
778 * Reapply extensions when using except and only. Thanks Iain Hecker.
779
780 * Binary data is escaped when being inserted to SQLite3 Databases. Thanks
781 Naruse!
782
783
784 ## Rails 3.0.5 (February 26, 2011) ##
785
786 * Model.where(:column => 1).where(:column => 2) will always produce an AND
787 query.
788 *Aaron Patterson*
789
790 * Deprecated support for interpolated association conditions in the form of :conditions => 'foo = #{bar}'.
791
792 Instead, you should use a proc, like so:
793
794 Before:
795
796 has_many :things, :conditions => 'foo = #{bar}'
797
798 After:
799
800 has_many :things, :conditions => proc { "foo = #{bar}" }
801
802 Inside the proc, 'self' is the object which is the owner of the association, unless you are
803 eager loading the association, in which case 'self' is the class which the association is within.
804
805 You can have any "normal" conditions inside the proc, so the following will work too:
806
807 has_many :things, :conditions => proc { ["foo = ?", bar] }
808
809 Previously :insert_sql and :delete_sql on has_and_belongs_to_many association allowed you to call
810 'record' to get the record being inserted or deleted. This is now passed as an argument to
811 the proc.
812
813 *Jon Leighton*
814
815
816 ## Rails 3.0.4 (February 8, 2011) ##
817
818 * Added deprecation warning for has_and_belongs_to_many associations where the join table has
819 additional attributes other than the keys. Access to these attributes is removed in 3.1.
820 Please use has_many :through instead. *Jon Leighton*
821
822
823 ## Rails 3.0.3 (November 16, 2010) ##
824
825 * Support find by class like this: Post.where(:name => Post)
826
827
828 ## Rails 3.0.2 (November 15, 2010) ##
829
830 * Dramatic speed increase (see: http://engineering.attinteractive.com/2010/10/arel-two-point-ohhhhh-yaaaaaa/) *Aaron Patterson*
831
832 * reorder is deprecated in favor of except(:order).order(...) *Santiago Pastorino*
833
834 * except is now AR public API
835
836 Model.order('name').except(:order).order('salary')
837
838 generates:
839
840 SELECT * FROM models ORDER BY salary
841
842 *Santiago Pastorino*
843
844 * The following code:
845
846 Model.limit(10).scoping { Model.count }
847
848 now generates the following SQL:
849
850 SELECT COUNT(*) FROM models LIMIT 10
851
852 This may not return what you want. Instead, you may with to do something
853 like this:
854
855 Model.limit(10).scoping { Model.all.size }
856
857 *Aaron Patterson*
858
859
860 ## Rails 3.0.1 (October 15, 2010) ##
861
862 * Introduce a fix for CVE-2010-3993
863
864
865 ## Rails 3.0.0 (August 29, 2010) ##
866
867 * Changed update_attribute to not run callbacks and update the record directly in the database *Neeraj Singh*
868
869 * Add scoping and unscoped as the syntax to replace the old with_scope and with_exclusive_scope *José Valim*
870
871 * New rake task, db:migrate:status, displays status of migrations #4947 *Kevin Skoglund*
872
873 * select and order for ActiveRecord now always concatenate nested calls. Use reorder if you want the original order to be overwritten *Santiago Pastorino*
874
875 * PostgreSQL: ensure the database time zone matches Ruby's time zone #4895 *Aaron Patterson*
876
877 * Fixed that ActiveRecord::Base.compute_type would swallow NoMethodError #4751 *Andrew Bloomgarden, Andrew White*
878
879 * Add index length support for MySQL. #1852 *Emili Parreno, Pratik Naik*
880
881 Example:
882
883 add_index(:accounts, :name, :name => 'by_name', :length => 10)
884 => CREATE INDEX by_name ON accounts(name(10))
885
886 add_index(:accounts, [:name, :surname], :name => 'by_name_surname', :length => {:name => 10, :surname => 15})
887 => CREATE INDEX by_name_surname ON accounts(name(10), surname(15))
888
889 * find_or_create_by_attr(value, ...) works when attr is protected. #4457 *Santiago Pastorino, Marc-André Lafortune*
890
891 * New callbacks: after_commit and after_rollback. Do expensive operations like image thumbnailing after_commit instead of after_save. #2991 *Brian Durand*
892
893 * 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*
894
895 * 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*
896
897 * PostgreSQL: drop support for old postgres driver. Use pg 0.9.0 or later. *Jeremy Kemper*
898
899 * Observers can prevent records from saving by returning false, just like before_save and friends. #4087 *Mislav Marohnić*
900
901 * Add Relation extensions. *Pratik Naik*
902
903 users = User.where(:admin => true).extending(User::AdminPowers)
904
905 latest_users = User.order('created_at DESC') do
906 def posts_count
907 Post.count(:user_id => to_a.map(&:id))
908 end
909 end
910
911 * To prefix the table names of all models in a module, define self.table_name_prefix on the module. #4032 *Andrew White*
912
913 * 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*
914
915 * 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*
916
917 * Allow relations to be used as scope.
918
919 class Item
920 scope :red, where(:colour => 'red')
921 end
922
923 Item.red.limit(10) # Ten red items
924
925 * Rename named_scope to scope. *Pratik Naik*
926
927 * Changed ActiveRecord::Base.store_full_sti_class to be true by default reflecting the previously announced Rails 3 default *DHH*
928
929 * Add Relation#except. *Pratik Naik*
930
931 one_red_item = Item.where(:colour => 'red').limit(1)
932 all_items = one_red_item.except(:where, :limit)
933
934 * Add Relation#delete_all. *Pratik Naik*
935
936 Item.where(:colour => 'red').delete_all
937
938 * Add Model.having and Relation#having. *Pratik Naik*
939
940 Developer.group("salary").having("sum(salary) > 10000").select("salary")
941
942 * Add Relation#count. *Pratik Naik*
943
944 legends = People.where("age > 100")
945 legends.count
946 legends.count(:age, :distinct => true)
947 legends.select('id').count
948
949 * Add Model.readonly and association_collection#readonly finder method. *Pratik Naik*
950
951 Post.readonly.to_a # Load all posts in readonly mode
952 @user.items.readonly(false).to_a # Load all the user items in writable mode
953
954 * Add .lock finder method *Pratik Naik*
955
956 User.lock.where(:name => 'lifo').to_a
957
958 old_items = Item.where("age > 100")
959 old_items.lock.each {|i| .. }
960
961 * Add Model.from and association_collection#from finder methods *Pratik Naik*
962
963 user = User.scoped
964 user.select('*').from('users, items')
965
966 * Add relation.destroy_all *Pratik Naik*
967
968 old_items = Item.where("age > 100")
969 old_items.destroy_all
970
971 * Add relation.exists? *Pratik Naik*
972
973 red_items = Item.where(:colours => 'red')
974 red_items.exists?
975 red_items.exists?(1)
976
977 * Add find(ids) to relations. *Pratik Naik*
978
979 old_users = User.order("age DESC")
980 old_users.find(1)
981 old_users.find(1, 2, 3)
982
983 * Add new finder methods to association collection. *Pratik Naik*
984
985 class User < ActiveRecord::Base
986 has_many :items
987 end
988
989 user = User.first
990 user.items.where(:items => {:colour => 'red'})
991 user.items.select('items.id')
992
993 * Add relation.reload to force reloading the records. *Pratik Naik*
994
995 topics = Topic.scoped
996 topics.to_a # force load
997 topics.first # returns a cached record
998 topics.reload
999 topics.first # Fetches a new record from the database
1000
1001 * Rename Model.conditions and relation.conditions to .where. *Pratik Naik*
1002
1003 Before :
1004 User.conditions(:name => 'lifo')
1005 User.select('id').conditions(["age > ?", 21])
1006
1007 Now :
1008 User.where(:name => 'lifo')
1009 User.select('id').where(["age > ?", 21])
1010
1011 * Add Model.select/group/order/limit/joins/conditions/preload/eager_load class methods returning a lazy relation. *Pratik Naik*
1012
1013 Examples :
1014
1015 posts = Post.select('id).order('name') # Returns a lazy relation
1016 posts.each {|p| puts p.id } # Fires "select id from posts order by name"
1017
1018 * Model.scoped now returns a relation if invoked without any arguments. *Pratik Naik*
1019
1020 Example :
1021
1022 posts = Post.scoped
1023 posts.size # Fires "select count(*) from posts" and returns the count
1024 posts.each {|p| puts p.name } # Fires "select * from posts" and loads post objects
1025
1026 * Association inverses for belongs_to, has_one, and has_many. Optimization to reduce database queries. #3533 *Murray Steele*
1027
1028 # post.comments sets each comment's post without needing to :include
1029 class Post < ActiveRecord::Base
1030 has_many :comments, :inverse_of => :post
1031 end
1032
1033 * MySQL: add_ and change_column support positioning. #3286 *Ben Marini*
1034
1035 * Reset your Active Record counter caches with the reset_counter_cache class method. #1211 *Mike Breen, Gabe da Silveira*
1036
1037 * Remove support for SQLite 2. Please upgrade to SQLite 3+ or install the plugin from git://github.com/rails/sqlite2_adapter.git *Pratik Naik*
1038
1039 * PostgreSQL: XML datatype support. #1874 *Leonardo Borges*
1040
1041 * 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*
1042
1043 * SQLite: drop support for 'dbfile' option in favor of 'database.' #2363 *Paul Hinze, Jeremy Kemper*
1044
1045 * Added :primary_key option to belongs_to associations. #765 *Szymon Nowak, Philip Hallstrom, Noel Rocha*
1046 # employees.company_name references companies.name
1047 Employee.belongs_to :company, :primary_key => 'name', :foreign_key => 'company_name'
1048
1049 * Implement #many? for NamedScope and AssociationCollection using #size. #1500 *Chris Kampmeier*
1050
1051 * Added :touch option to belongs_to associations that will touch the parent record when the current record is saved or destroyed *DHH*
1052
1053 * Added ActiveRecord::Base#touch to update the updated_at/on attributes (or another specified timestamp) with the current time *DHH*
1054
1055
1056 ## 2.3.2 Final (March 15, 2009) ##
1057
1058 * Added ActiveRecord::Base.find_each and ActiveRecord::Base.find_in_batches for batch processing *DHH/Jamis Buck*
1059
1060 * Added that ActiveRecord::Base.exists? can be called with no arguments #1817 *Scott Taylor*
1061
1062 * Add Support for updating deeply nested models from a single form. #1202 *Eloy Duran*
1063
1064 class Book < ActiveRecord::Base
1065 has_one :author
1066 has_many :pages
1067
1068 accepts_nested_attributes_for :author, :pages
1069 end
1070
1071 * Make after_save callbacks fire only if the record was successfully saved. #1735 *Michael Lovitt*
1072
1073 Previously the callbacks would fire if a before_save cancelled saving.
1074
1075 * Support nested transactions using database savepoints. #383 *Jonathan Viney, Hongli Lai*
1076
1077 * Added dynamic scopes ala dynamic finders #1648 *Yaroslav Markin*
1078
1079 * Fixed that ActiveRecord::Base#new_record? should return false (not nil) for existing records #1219 *Yaroslav Markin*
1080
1081 * I18n the word separator for error messages. Introduces the activerecord.errors.format.separator translation key. #1294 *Akira Matsuda*
1082
1083 * Add :having as a key to find and the relevant associations. *Emilio Tagua*
1084
1085 * Added default_scope to Base #1381 [Paweł Kondzior]. Example:
1086
1087 class Person < ActiveRecord::Base
1088 default_scope :order => 'last_name, first_name'
1089 end
1090
1091 class Company < ActiveRecord::Base
1092 has_many :people
1093 end
1094
1095 Person.all # => Person.find(:all, :order => 'last_name, first_name')
1096 Company.find(1).people # => Person.find(:all, :order => 'last_name, first_name', :conditions => { :company_id => 1 })
1097
1098
1099 ## 2.2.1 RC2 (November 14th, 2008) ##
1100
1101 * Ensure indices don't flip order in schema.rb #1266 *Jordi Bunster*
1102
1103 * Fixed that serialized strings should never be type-casted (i.e. turning "Yes" to a boolean) #857 *Andreas Korth*
1104
1105
1106 ## 2.2.0 RC1 (October 24th, 2008) ##
1107
1108 * Skip collection ids reader optimization if using :finder_sql *Jeremy Kemper*
1109
1110 * Add Model#delete instance method, similar to Model.delete class method. #1086 *Hongli Lai (Phusion)*
1111
1112 * MySQL: cope with quirky default values for not-null text columns. #1043 *Frederick Cheung*
1113
1114 * Multiparameter attributes skip time zone conversion for time-only columns [#1030 state:resolved] *Geoff Buesing*
1115
1116 * Base.skip_time_zone_conversion_for_attributes uses class_inheritable_accessor, so that subclasses don't overwrite Base [#346 state:resolved] *Emilio Tagua*
1117
1118 * Added find_last_by dynamic finder #762 *Emilio Tagua*
1119
1120 * Internal API: configurable association options and build_association method for reflections so plugins may extend and override. #985 *Hongli Lai (Phusion)*
1121
1122 * Changed benchmarks to be reported in milliseconds *David Heinemeier Hansson*
1123
1124 * Connection pooling. #936 *Nick Sieger*
1125
1126 * Merge scoped :joins together instead of overwriting them. May expose scoping bugs in your code! #501 *Andrew White*
1127
1128 * 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*
1129
1130 * Transactional migrations for databases which support them. #834 *divoxx, Adam Wiggins, Tarmo Tänav*
1131
1132 * Set config.active_record.timestamped_migrations = false to have migrations with numeric prefix instead of UTC timestamp. #446. *Andrew Stone, Nik Wakelin*
1133
1134 * change_column_default preserves the not-null constraint. #617 *Tarmo Tänav*
1135
1136 * Fixed that create database statements would always include "DEFAULT NULL" (Nick Sieger) *#334*
1137
1138 * Add :tokenizer option to validates_length_of to specify how to split up the attribute string. #507. [David Lowenfels] Example :
1139
1140 \# Ensure essay contains at least 100 words.
1141 validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least %d words."), :tokenizer => lambda {|str| str.scan(/\w+/) }
1142
1143 * Allow conditions on multiple tables to be specified using hash. [Pratik Naik]. Example:
1144
1145 User.all :joins => :items, :conditions => { :age => 10, :items => { :color => 'black' } }
1146 Item.first :conditions => { :items => { :color => 'red' } }
1147
1148 * Always treat integer :limit as byte length. #420 *Tarmo Tänav*
1149
1150 * Partial updates don't update lock_version if nothing changed. #426 *Daniel Morrison*
1151
1152 * Fix column collision with named_scope and :joins. #46 *Duncan Beevers, Mark Catley*
1153
1154 * db:migrate:down and :up update schema_migrations. #369 *Michael Raidel, RaceCondition*
1155
1156 * PostgreSQL: support :conditions => [':foo::integer', { :foo => 1 }] without treating the ::integer typecast as a bind variable. *Tarmo Tänav*
1157
1158 * MySQL: rename_column preserves column defaults. #466 *Diego Algorta*
1159
1160 * Add :from option to calculations. #397 *Ben Munat*
1161
1162 * Add :validate option to associations to enable/disable the automatic validation of associated models. Resolves #301. *Jan De Poorter*
1163
1164 * PostgreSQL: use 'INSERT ... RETURNING id' for 8.2 and later. *Jeremy Kemper*
1165
1166 * Added SQL escaping for :limit and :offset in MySQL *Jonathan Wiess*
1167
1168
1169 ## 2.1.0 (May 31st, 2008) ##
1170
1171 * Add ActiveRecord::Base.sti_name that checks ActiveRecord::Base#store_full_sti_class? and returns either the full or demodulized name. *Rick Olson*
1172
1173 * Add first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
1174
1175 * Added SQL escaping for :limit and :offset #288 *Aaron Bedra, Steven Bristol, Jonathan Wiess*
1176
1177 * Added first/last methods to associations/named_scope. Resolved #226. *Ryan Bates*
1178
1179 * Ensure hm:t preloading honours reflection options. Resolves #137. *Frederick Cheung*
1180
1181 * Added protection against duplicate migration names (Aslak Hellesøy) *#112*
1182
1183 * 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*
1184
1185 * 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*
1186
1187 * Added change_table for migrations (Jeff Dean) [#71]. Example:
1188
1189 change_table :videos do |t|
1190 t.timestamps # adds created_at, updated_at
1191 t.belongs_to :goat # adds goat_id integer
1192 t.string :name, :email, :limit => 20 # adds name and email both with a 20 char limit
1193 t.remove :name, :email # removes the name and email columns
1194 end
1195
1196 * Fixed has_many :through .create with no parameters caused a "can't dup NilClass" error (Steven Soroka) *#85*
1197
1198 * Added block-setting of attributes for Base.create like Base.new already has (Adam Meehan) *#39*
1199
1200 * Fixed that pessimistic locking you reference the quoted table name (Josh Susser) *#67*
1201
1202 * Fixed that change_column should be able to use :null => true on a field that formerly had false [Nate Wiger] *#26*
1203
1204 * Added that the MySQL adapter should map integer to either smallint, int, or bigint depending on the :limit just like PostgreSQL *David Heinemeier Hansson*
1205
1206 * Change validates_uniqueness_of :case_sensitive option default back to true (from [9160]). Love your database columns, don't LOWER them. *Rick Olson*
1207
1208 * Add support for interleaving migrations by storing which migrations have run in the new schema_migrations table. Closes #11493 *Jordi Bunster*
1209
1210 * ActiveRecord::Base#sum defaults to 0 if no rows are returned. Closes #11550 *Kamal Fariz Mahyuddin*
1211
1212 * Ensure that respond_to? considers dynamic finder methods. Closes #11538. *James Mead*
1213
1214 * Ensure that save on parent object fails for invalid has_one association. Closes #10518. *Pratik Naik*
1215
1216 * Remove duplicate code from associations. *Pratik Naik*
1217
1218 * Refactor HasManyThroughAssociation to inherit from HasManyAssociation. Association callbacks and <association>_ids= now work with hm:t. #11516 *Ruy Asan*
1219
1220 * Ensure HABTM#create and HABTM#build do not load entire association. *Pratik Naik*
1221
1222 * Improve documentation. *Xavier Noria, Jack Danger Canty, leethal*
1223
1224 * Tweak ActiveRecord::Base#to_json to include a root value in the returned hash: {"post": {"title": ...}} *Rick Olson*
1225
1226 Post.find(1).to_json # => {"title": ...}
1227 config.active_record.include_root_in_json = true
1228 Post.find(1).to_json # => {"post": {"title": ...}}
1229
1230 * Add efficient #include? to AssociationCollection (for has_many/has_many :through/habtm). *stopdropandrew*
1231
1232 * PostgreSQL: create_ and drop_database support. #9042 *ez, pedz, Nick Sieger*
1233
1234 * Ensure that validates_uniqueness_of works with with_scope. Closes #9235. *Nik Wakelin, cavalle*
1235
1236 * Partial updates include only unsaved attributes. Off by default; set YourClass.partial_updates = true to enable. *Jeremy Kemper*
1237
1238 * Removing unnecessary uses_tzinfo helper from tests, given that TZInfo is now bundled *Geoff Buesing*
1239
1240 * Fixed that validates_size_of :within works in associations #11295, #10019 *cavalle*
1241
1242 * Track changes to unsaved attributes. *Jeremy Kemper*
1243
1244 * 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*
1245
1246 * Fixed that has_many :through would ignore the hash conditions #11447 *Emilio Tagua*
1247
1248 * Fix issue where the :uniq option of a has_many :through association is ignored when find(:all) is called. Closes #9407 *cavalle*
1249
1250 * Fix duplicate table alias error when including an association with a has_many :through association on the same join table. Closes #7310 *cavalle*
1251
1252 * More efficient association preloading code that compacts a through_records array in a central location. Closes #11427 *Jack Danger Canty*
1253
1254 * Improve documentation. *Ryan Bigg, Jan De Poorter, Cheah Chu Yeow, Xavier Shay, Jack Danger Canty, Emilio Tagua, Xavier Noria, Sunny Ripert*
1255
1256 * Fixed that ActiveRecord#Base.find_or_create/initialize would not honor attr_protected/accessible when used with a hash #11422 *Emilio Tagua*
1257
1258 * Added ActiveRecord#Base.all/first/last as aliases for find(:all/:first/:last) #11413 *nkallen, Chris O'Sullivan*
1259
1260 * Merge the has_finder gem, renamed as 'named_scope'. #11404 *nkallen*
1261
1262 class Article < ActiveRecord::Base
1263 named_scope :published, :conditions => {:published => true}
1264 named_scope :popular, :conditions => ...
1265 end
1266
1267 Article.published.paginate(:page => 1)
1268 Article.published.popular.count
1269 Article.popular.find(:first)
1270 Article.popular.find(:all, :conditions => {...})
1271
1272 See http://pivots.pivotallabs.com/users/nick/blog/articles/284-hasfinder-it-s-now-easier-than-ever-to-create-complex-re-usable-sql-queries
1273
1274 * Add has_one :through support. #4756 *Chris O'Sullivan*
1275
1276 * Migrations: create_table supports primary_key_prefix_type. #10314 *student, Chris O'Sullivan*
1277
1278 * Added logging for dependency load errors with fixtures #11056 *stuthulhu*
1279
1280 * Time zone aware attributes use Time#in_time_zone *Geoff Buesing*
1281
1282 * Fixed that scoped joins would not always be respected #6821 *Theory/Jack Danger Canty*
1283
1284 * Ensure that ActiveRecord::Calculations disambiguates field names with the table name. #11027 *cavalle*
1285
1286 * Added add/remove_timestamps to the schema statements for adding the created_at/updated_at columns on existing tables #11129 *jramirez*
1287
1288 * Added ActiveRecord::Base.find(:last) #11338 *Emilio Tagua*
1289
1290 * test_native_types expects DateTime.local_offset instead of DateTime.now.offset; fixes test breakage due to dst transition *Geoff Buesing*
1291
1292 * Add :readonly option to HasManyThrough associations. #11156 *Emilio Tagua*
1293
1294 * Improve performance on :include/:conditions/:limit queries by selectively joining in the pre-query. #9560 *dasil003*
1295
1296 * Perf fix: Avoid the use of named block arguments. Closes #11109 *adymo*
1297
1298 * PostgreSQL: support server versions 7.4 through 8.0 and the ruby-pg driver. #11127 *jdavis*
1299
1300 * Ensure association preloading doesn't break when an association returns nil. ##11145 *GMFlash*
1301
1302 * Make dynamic finders respect the :include on HasManyThrough associations. #10998. *cpytel*
1303
1304 * 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*
1305
1306 * Refactor ConnectionAdapters::Column.new_time: leverage DateTime failover behavior of Time#time_with_datetime_fallback *Geoff Buesing*
1307
1308 * Improve associations performance by using symbol callbacks instead of string callbacks. #11108 *adymo*
1309
1310 * Optimise the BigDecimal conversion code. #11110 *adymo*
1311
1312 * Introduce the :readonly option to all associations. Records from the association cannot be saved. #11084 *Emilio Tagua*
1313
1314 * Multiparameter attributes for time columns fail over to DateTime when out of range of Time *Geoff Buesing*
1315
1316 * Base#instantiate_time_object uses Time.zone.local() *Geoff Buesing*
1317
1318 * Add timezone-aware attribute readers and writers. #10982 *Geoff Buesing*
1319
1320 * Instantiating time objects in multiparameter attributes uses Time.zone if available. #10982 *Rick Olson*
1321
1322 * Add note about how ActiveRecord::Observer classes are initialized in a Rails app. #10980 *Xavier Noria*
1323
1324 * MySQL: omit text/blob defaults from the schema instead of using an empty string. #10963 *mdeiters*
1325
1326 * belongs_to supports :dependent => :destroy and :delete. #10592 *Jonathan Viney*
1327
1328 * Introduce preload query strategy for eager :includes. #9640 *Frederick Cheung, Aliaksey Kandratsenka, codafoo*
1329
1330 * Support aggregations in finder conditions. #10572 *Ryan Kinderman*
1331
1332 * Organize and clean up the Active Record test suite. #10742 *John Barnette*
1333
1334 * Ensure that modifying has_and_belongs_to_many actions clear the query cache. Closes #10840 *john.andrews*
1335
1336 * Fix issue where Table#references doesn't pass a :null option to a *_type attribute for polymorphic associations. Closes #10753 *railsjitsu*
1337
1338 * Fixtures: removed support for the ancient pre-YAML file format. #10736 *John Barnette*
1339
1340 * More thoroughly quote table names. #10698 *dimdenis, lotswholetime, Jeremy Kemper*
1341
1342 * 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*
1343
1344 * Added ActiveRecord::Base.cache_key to make it easier to cache Active Records in combination with the new ActiveSupport::Cache::* libraries *David Heinemeier Hansson*
1345
1346 * Make sure CSV fixtures are compatible with ruby 1.9's new csv implementation. *JEG2*
1347
1348 * Added by parameter to increment, decrement, and their bang varieties so you can do player1.increment!(:points, 5) #10542 *Sam*
1349
1350 * Optimize ActiveRecord::Base#exists? to use #select_all instead of #find. Closes #10605 *jamesh, Frederick Cheung, protocool*
1351
1352 * Don't unnecessarily load has_many associations in after_update callbacks. Closes #6822 *stopdropandrew, canadaduane*
1353
1354 * Eager belongs_to :include infers the foreign key from the association name rather than the class name. #10517 *Jonathan Viney*
1355
1356 * SQLite: fix rename_ and remove_column for columns with unique indexes. #10576 *Brandon Keepers*
1357
1358 * Ruby 1.9 compatibility. #10655 *Jeremy Kemper, Dirkjan Bussink*
1359
1360
1361 ## 2.0.2 (December 16th, 2007) ##
1362
1363 * Ensure optimistic locking handles nil #lock_version values properly. Closes #10510 *Rick Olson*
1364
1365 * Make the Fixtures Test::Unit enhancements more supporting for double-loaded test cases. Closes #10379 *brynary*
1366
1367 * Fix that validates_acceptance_of still works for non-existent tables (useful for bootstrapping new databases). Closes #10474 *Josh Susser*
1368
1369 * Ensure that the :uniq option for has_many :through associations retains the order. #10463 *remvee*
1370
1371 * Base.exists? doesn't rescue exceptions to avoid hiding SQL errors. #10458 *Michael Klishin*
1372
1373 * Documentation: Active Record exceptions, destroy_all and delete_all. #10444, #10447 *Michael Klishin*
1374
1375
1376 ## 2.0.1 (December 7th, 2007) ##
1377
1378 * Removed query cache rescue as it could cause code to be run twice (closes #10408) *David Heinemeier Hansson*
1379
1380
1381 ## 2.0.0 (December 6th, 2007) ##
1382
1383 * 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*
1384
1385 * 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*
1386
1387 * Fixed that the truncation of strings longer than 50 chars should use inspect
1388 so newlines etc are escaped #10385 [Norbert Crombach]
1389 * Fixed that habtm associations should be able to set :select as part of their definition and have that honored *David Heinemeier Hansson*
1390
1391 * Document how the :include option can be used in Calculations::calculate. Closes #7446 *adamwiggins, ultimoamore*
1392
1393 * Fix typo in documentation for polymorphic associations w/STI. Closes #7461 *johnjosephbachir*
1394
1395 * 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*
1396
1397 * More complete documentation for find_by_sql. Closes #7912 *fearoffish*
1398
1399 * Added ActiveRecord::Base#becomes to turn a record into one of another class (mostly relevant for STIs) [David Heinemeier Hansson]. Example:
1400
1401 render :partial => @client.becomes(Company) # renders companies/company instead of clients/client
1402
1403 * Fixed that to_xml should not automatically pass :procs to associations included with :include #10162 *Cheah Chu Yeow*
1404
1405 * Fix documentation typo introduced in [8250]. Closes #10339 *Henrik N*
1406
1407 * Foxy fixtures: support single-table inheritance. #10234 *tom*
1408
1409 * Foxy fixtures: allow mixed usage to make migration easier and more attractive. #10004 *lotswholetime*
1410
1411 * Make the record_timestamps class-inheritable so it can be set per model. #10004 *tmacedo*
1412
1413 * Allow validates_acceptance_of to use a real attribute instead of only virtual (so you can record that the acceptance occured) #7457 *ambethia*
1414
1415 * DateTimes use Ruby's default calendar reform setting. #10201 *Geoff Buesing*
1416
1417 * Dynamic finders on association collections respect association :order and :limit. #10211, #10227 *Patrick Joyce, Rick Olson, Jack Danger Canty*
1418
1419 * Add 'foxy' support for fixtures of polymorphic associations. #10183 *John Barnette, David Lowenfels*
1420
1421 * validates_inclusion_of and validates_exclusion_of allow formatted :message strings. #8132 *devrieda, Mike Naberezny*
1422
1423 * attr_readonly behaves well with optimistic locking. #10188 *Nick Bugajski*
1424
1425 * Base#to_xml supports the nil="true" attribute like Hash#to_xml. #8268 *Jonathan del Strother*
1426
1427 * Change plings to the more conventional quotes in the documentation. Closes #10104 *Jack Danger Canty*
1428
1429 * Fix HasManyThrough Association so it uses :conditions on the HasMany Association. Closes #9729 *Jack Danger Canty*
1430
1431 * Ensure that column names are quoted. Closes #10134 *wesley.moxam*
1432
1433 * Smattering of grammatical fixes to documentation. Closes #10083 *Bob Silva*
1434
1435 * Enhance explanation with more examples for attr_accessible macro. Closes #8095 *fearoffish, Marcel Molina Jr.*
1436
1437 * Update association/method mapping table to refected latest collection methods for has_many :through. Closes #8772 *Pratik Naik*
1438
1439 * Explain semantics of having several different AR instances in a transaction block. Closes #9036 *jacobat, Marcel Molina Jr.*
1440
1441 * Update Schema documentation to use updated sexy migration notation. Closes #10086 *Sam Granieri*
1442
1443 * Make fixtures work with the new test subclasses. *Tarmo Tänav, Michael Koziarski*
1444
1445 * Introduce finder :joins with associations. Same :include syntax but with inner rather than outer joins. #10012 *RubyRedRick*
1446 # Find users with an avatar
1447 User.find(:all, :joins => :avatar)
1448
1449 # Find posts with a high-rated comment.
1450 Post.find(:all, :joins => :comments, :conditions => 'comments.rating > 3')
1451
1452 * Associations: speedup duplicate record check. #10011 *Pratik Naik*
1453
1454 * Make sure that << works on has_many associations on unsaved records. Closes #9989 *Josh Susser*
1455
1456 * Allow association redefinition in subclasses. #9346 *wildchild*
1457
1458 * Fix has_many :through delete with custom foreign keys. #6466 *naffis*
1459
1460 * Foxy fixtures, from rathole (http://svn.geeksomnia.com/rathole/trunk/README)
1461 - stable, autogenerated IDs
1462 - specify associations (belongs_to, has_one, has_many) by label, not ID
1463 - specify HABTM associations as inline lists
1464 - autofill timestamp columns
1465 - support YAML defaults
1466 - fixture label interpolation
1467 Enabled for fixtures that correspond to a model class and don't specify a primary key value. #9981 *John Barnette*
1468
1469 * Add docs explaining how to protect all attributes using attr_accessible with no arguments. Closes #9631 *boone, rmm5t*
1470
1471 * Update add_index documentation to use new options api. Closes #9787 *Kamal Fariz Mahyuddin*
1472
1473 * Allow find on a has_many association defined with :finder_sql to accept id arguments as strings like regular find does. Closes #9916 *krishna*
1474
1475 * Use VALID_FIND_OPTIONS when resolving :find scoping rather than hard coding the list of valid find options. Closes #9443 *sur*
1476
1477 * Limited eager loading no longer ignores scoped :order. Closes #9561 *Jack Danger Canty, Josh Peek*
1478
1479 * 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*
1480
1481 * Assigning nil to a composed_of aggregate also sets its immediate value to nil. #9843 *Chris Cruft*
1482
1483 * Ensure that mysql quotes table names with database names correctly. Closes #9911 *crayz*
1484
1485 "foo.bar" => "`foo`.`bar`"
1486
1487 * Complete the assimilation of Sexy Migrations from ErrFree *Chris Wanstrath, PJ Hyett*
1488 http://errtheblog.com/post/2381
1489
1490 * Qualified column names work in hash conditions, like :conditions => { 'comments.created_at' => ... }. #9733 *Jack Danger Canty*
1491
1492 * 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*
1493
1494 * Refactor association create and build so before & after callbacks behave consistently. #8854 *Pratik Naik, mortent*
1495
1496 * Quote table names. Defaults to column quoting. #4593 *Justin Lynn, gwcoffey, eadz, Dmitry V. Sabanin, Jeremy Kemper*
1497
1498 * Alias association #build to #new so it behaves predictably. #8787 *Pratik Naik*
1499
1500 * Add notes to documentation regarding attr_readonly behavior with counter caches and polymorphic associations. Closes #9835 *saimonmoore, Rick Olson*
1501
1502 * Observers can observe model names as symbols properly now. Closes #9869 *queso*
1503
1504 * find_and_(initialize|create)_by methods can now properly initialize protected attributes *Tobias Lütke*
1505
1506 * belongs_to infers the foreign key from the association name instead of from the class name. *Jeremy Kemper*
1507
1508 * PostgreSQL: support multiline default values. #7533 *Carl Lerche, aguynamedryan, Rein Henrichs, Tarmo Tänav*
1509
1510 * MySQL: fix change_column on not-null columns that don't accept dfeault values of ''. #6663 *Jonathan Viney, Tarmo Tänav*
1511
1512 * validates_uniqueness_of behaves well with abstract superclasses and
1513 single-table inheritance. #3833, #9886 [Gabriel Gironda, rramdas, François Beausoleil, Josh Peek, Tarmo Tänav, pat]
1514 * Warn about protected attribute assigments in development and test environments when mass-assigning to an attr_protected attribute. #9802 *Henrik N*
1515
1516 * Speedup database date/time parsing. *Jeremy Kemper, Tarmo Tänav*
1517
1518 * Fix calling .clear on a has_many :dependent=>:delete_all association. *Tarmo Tänav*
1519
1520 * Allow change_column to set NOT NULL in the PostgreSQL adapter *Tarmo Tänav*
1521
1522 * Fix that ActiveRecord would create attribute methods and override custom attribute getters if the method is also defined in Kernel.methods. *Rick Olson*
1523
1524 * 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*
1525
1526 * 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*
1527
1528
1529 ## 2.0.0 Preview Release (September 29th, 2007) Includes duplicates of changes from 1.14.2 - 1.15.3 ##
1530
1531 * Add attr_readonly to specify columns that are skipped during a normal ActiveRecord #save operation. Closes #6896 *Dan Manges*
1532
1533 class Comment < ActiveRecord::Base
1534 # Automatically sets Article#comments_count as readonly.
1535 belongs_to :article, :counter_cache => :comments_count
1536 end
1537
1538 class Article < ActiveRecord::Base
1539 attr_readonly :approved_comments_count
1540 end
1541
1542 * Make size for has_many :through use counter cache if it exists. Closes #9734 *Xavier Shay*
1543
1544 * Remove DB2 adapter since IBM chooses to maintain their own adapter instead. *Jeremy Kemper*
1545
1546 * Extract Oracle, SQLServer, and Sybase adapters into gems. *Jeremy Kemper*
1547
1548 * Added fixture caching that'll speed up a normal fixture-powered test suite between 50% and 100% #9682 *Frederick Cheung*
1549
1550 * Correctly quote id list for limited eager loading. #7482 *tmacedo*
1551
1552 * Fixed that using version-targetted migrates would fail on loggers other than the default one #7430 *valeksenko*
1553
1554 * Fixed rename_column for SQLite when using symbols for the column names #8616 *drodriguez*
1555
1556 * Added the possibility of using symbols in addition to concrete classes with ActiveRecord::Observer#observe. #3998 *Robby Russell, Tarmo Tänav*
1557
1558 * Added ActiveRecord::Base#to_json/from_json *David Heinemeier Hansson, Cheah Chu Yeow*
1559
1560 * Added ActiveRecord::Base#from_xml [David Heinemeier Hansson]. Example:
1561
1562 xml = "<person><name>David</name></person>"
1563 Person.new.from_xml(xml).name # => "David"
1564
1565 * Define dynamic finders as real methods after first usage. *bscofield*
1566
1567 * Deprecation: remove deprecated threaded_connections methods. Use allow_concurrency instead. *Jeremy Kemper*
1568
1569 * Associations macros accept extension blocks alongside modules. #9346 *Josh Peek*
1570
1571 * Speed up and simplify query caching. *Jeremy Kemper*
1572
1573 * connection.select_rows 'sql' returns an array (rows) of arrays (field values). #2329 *Michael Schuerig*
1574
1575 * Eager loading respects explicit :joins. #9496 *dasil003*
1576
1577 * Extract Firebird, FrontBase, and OpenBase adapters into gems. #9508, #9509, #9510 *Jeremy Kemper*
1578
1579 * RubyGem database adapters: expects a gem named activerecord-<database>-adapter with active_record/connection_adapters/<database>_adapter.rb in its load path. *Jeremy Kemper*
1580
1581 * Fixed that altering join tables in migrations would fail w/ sqlite3 #7453 *TimoMihaljov/brandon*
1582
1583 * Fix association writer with :dependent => :nullify. #7314 *Jonathan Viney*
1584
1585 * OpenBase: update for new lib and latest Rails. Support migrations. #8748 *dcsesq*
1586
1587 * Moved acts_as_tree into a plugin of the same name on the official Rails svn. #9514 *Pratik Naik*
1588
1589 * Moved acts_as_nested_set into a plugin of the same name on the official Rails svn. #9516 *Josh Peek*
1590
1591 * Moved acts_as_list into a plugin of the same name on the official Rails svn. *Josh Peek*
1592
1593 * Explicitly require active_record/query_cache before using it. *Jeremy Kemper*
1594
1595 * Fix bug where unserializing an attribute attempts to modify a frozen @attributes hash for a deleted record. *Rick Olson, marclove*
1596
1597 * Performance: absorb instantiate and initialize_with_callbacks into the Base methods. *Jeremy Kemper*
1598
1599 * Fixed that eager loading queries and with_scope should respect the :group option *David Heinemeier Hansson*
1600
1601 * Improve performance and functionality of the postgresql adapter. Closes #8049 *roderickvd*
1602
1603 For more information see: http://dev.rubyonrails.org/ticket/8049
1604
1605 * Don't clobber includes passed to has_many.count *Jack Danger Canty*
1606
1607 * Make sure has_many uses :include when counting *Jack Danger Canty*
1608
1609 * Change the implementation of ActiveRecord's attribute reader and writer methods *Michael Koziarski*
1610 - 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.
1611 * Perform a deep #dup on query cache results so that modifying activerecord attributes does not modify the cached attributes. *Rick Olson*
1612
1613 \# Ensure that has_many :through associations use a count query instead of loading the target when #size is called. Closes #8800 [Pratik Naik]
1614 * Added :unless clause to validations #8003 [monki]. Example:
1615
1616 def using_open_id?
1617 !identity_url.blank?
1618 end
1619
1620 validates_presence_of :identity_url, :if => using_open_id?
1621 validates_presence_of :username, :unless => using_open_id?
1622 validates_presence_of :password, :unless => using_open_id?
1623
1624 * Fix #count on a has_many :through association so that it recognizes the :uniq option. Closes #8801 *Pratik Naik*
1625
1626 * Fix and properly document/test count(column_name) usage. Closes #8999 *Pratik Naik*
1627
1628 * Remove deprecated count(conditions=nil, joins=nil) usage. Closes #8993 *Pratik Naik*
1629
1630 * Change belongs_to so that the foreign_key assumption is taken from the association name, not the class name. Closes #8992 *Josh Susser*
1631
1632 OLD
1633 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is user_id
1634
1635 NEW
1636 belongs_to :visitor, :class_name => 'User' # => inferred foreign_key is visitor_id
1637
1638 * Remove spurious tests from deprecated_associations_test, most of these aren't deprecated, and are duplicated in associations_test. Closes #8987 *Pratik Naik*
1639
1640 * Make create! on a has_many :through association return the association object. Not the collection. Closes #8786 *Pratik Naik*
1641
1642 * Move from select * to select tablename.* to avoid clobbering IDs. Closes #8889 *dasil003*
1643
1644 * Don't call unsupported methods on associated objects when using :include, :method with to_xml #7307, *Manfred Stienstra, jwilger*
1645
1646 * Define collection singular ids method for has_many :through associations. #8763 *Pratik Naik*
1647
1648 * Array attribute conditions work with proxied association collections. #8318 *Kamal Fariz Mahyuddin, theamazingrando*
1649
1650 * Fix polymorphic has_one associations declared in an abstract class. #8638 *Pratik Naik, Dax Huiberts*
1651
1652 * Fixed validates_associated should not stop on the first error. #4276 *mrj, Manfred Stienstra, Josh Peek*
1653
1654 * Rollback if commit raises an exception. #8642 *kik, Jeremy Kemper*
1655
1656 * Update tests' use of fixtures for the new collections api. #8726 *Kamal Fariz Mahyuddin*
1657
1658 * Save associated records only if the association is already loaded. #8713 *Blaine*
1659
1660 * MySQL: fix show_variable. #8448 *matt, Jeremy Kemper*
1661
1662 * Fixtures: correctly delete and insert fixtures in a single transaction. #8553 *Michael Schuerig*
1663
1664 * Fixtures: people(:technomancy, :josh) returns both fixtures. #7880 *technomancy, Josh Peek*
1665
1666 * Calculations support non-numeric foreign keys. #8154 *Kamal Fariz Mahyuddin*
1667
1668 * with_scope is protected. #8524 *Josh Peek*
1669
1670 * Quickref for association methods. #7723 *marclove, Mindsweeper*
1671
1672 * Calculations: return nil average instead of 0 when there are no rows to average. #8298 *davidw*
1673
1674 * acts_as_nested_set: direct_children is sorted correctly. #4761 *Josh Peek, rails@33lc0.net*
1675
1676 * Raise an exception if both attr_protected and attr_accessible are declared. #8507 *stellsmi*
1677
1678 * SQLite, MySQL, PostgreSQL, Oracle: quote column names in column migration SQL statements. #8466 *marclove, lorenjohnson*
1679
1680 * Allow nil serialized attributes with a set class constraint. #7293 *sandofsky*
1681
1682 * Oracle: support binary fixtures. #7987 *Michael Schoen*
1683
1684 * Fixtures: pull fixture insertion into the database adapters. #7987 *Michael Schoen*
1685
1686 * Announce migration versions as they're performed. *Jeremy Kemper*
1687
1688 * find gracefully copes with blank :conditions. #7599 *Dan Manges, johnnyb*
1689
1690 * 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*
1691
1692 * MySQL: create_database takes :charset and :collation options. Charset defaults to utf8. #8448 *matt*
1693
1694 * Find with a list of ids supports limit/offset. #8437 *hrudududu*
1695
1696 * Optimistic locking: revert the lock version when an update fails. #7840 *plang*
1697
1698 * Migrations: add_column supports custom column types. #7742 *jsgarvin, Theory*
1699
1700 * 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*
1701
1702 * Ensure that associations with :dependent => :delete_all respect :conditions option. Closes #8034 *Jack Danger Canty, Josh Peek, Rick Olson*
1703
1704 * belongs_to assignment creates a new proxy rather than modifying its target in-place. #8412 *mmangino@elevatedrails.com*
1705
1706 * Fix column type detection while loading fixtures. Closes #7987 *roderickvd*
1707
1708 * Document deep eager includes. #6267 *Josh Susser, Dan Manges*
1709
1710 * Document warning that associations names shouldn't be reserved words. #4378 *murphy@cYcnus.de, Josh Susser*
1711
1712 * Sanitize Base#inspect. #8392, #8623 *Nik Wakelin, jnoon*
1713
1714 * Replace the transaction {|transaction|..} semantics with a new Exception ActiveRecord::Rollback. *Michael Koziarski*
1715
1716 * Oracle: extract column length for CHAR also. #7866 *ymendel*
1717
1718 * Document :allow_nil option for validates_acceptance_of since it defaults to true. *tzaharia*
1719
1720 * Update documentation for :dependent declaration so that it explicitly uses the non-deprecated API. *Jack Danger Canty*
1721
1722 * Add documentation caveat about when to use count_by_sql. *fearoffish*
1723
1724 * Enhance documentation for increment_counter and decrement_counter. *fearoffish*
1725
1726 * Provide brief introduction to what optimistic locking is. *fearoffish*
1727
1728 * Add documentation for :encoding option to mysql adapter. *marclove*
1729
1730 * Added short-hand declaration style to migrations (inspiration from Sexy Migrations, http://errtheblog.com/post/2381) [David Heinemeier Hansson]. Example:
1731
1732 create_table "products" do |t|
1733 t.column "shop_id", :integer
1734 t.column "creator_id", :integer
1735 t.column "name", :string, :default => "Untitled"
1736 t.column "value", :string, :default => "Untitled"
1737 t.column "created_at", :datetime
1738 t.column "updated_at", :datetime
1739 end
1740
1741 ...can now be written as:
1742
1743 create_table :products do |t|
1744 t.integer :shop_id, :creator_id
1745 t.string :name, :value, :default => "Untitled"
1746 t.timestamps
1747 end
1748
1749 * 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*
1750
1751 * Improve performance of calling .create on has_many :through associations. *evan*
1752
1753 * Improved cloning performance by relying less on exception raising #8159 *Blaine*
1754
1755 * Added ActiveRecord::Base.inspect to return a column-view like #<Post id:integer, title:string, body:text> *David Heinemeier Hansson*
1756
1757 * Added yielding of Builder instance for ActiveRecord::Base#to_xml calls *David Heinemeier Hansson*
1758
1759 * Small additions and fixes for ActiveRecord documentation. Closes #7342 *Jeremy McAnally*
1760
1761 * Add helpful debugging info to the ActiveRecord::StatementInvalid exception in ActiveRecord::ConnectionAdapters::SqliteAdapter#table_structure. Closes #7925. *court3nay*
1762
1763 * SQLite: binary escaping works with $KCODE='u'. #7862 *tsuka*
1764
1765 * Base#to_xml supports serialized attributes. #7502 *jonathan*
1766
1767 * Base.update_all :order and :limit options. Useful for MySQL updates that must be ordered to avoid violating unique constraints. *Jeremy Kemper*
1768
1769 * 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*
1770
1771 * 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*
1772
1773 * 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*
1774
1775 * 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*
1776
1777 * Allow a polymorphic :source for has_many :through associations. Closes #7143 *protocool*
1778
1779 * Consistent public/protected/private visibility for chained methods. #7813 *Dan Manges*
1780
1781 * Oracle: fix quoted primary keys and datetime overflow. #7798 *Michael Schoen*
1782
1783 * Consistently quote primary key column names. #7763 *toolmantim*
1784
1785 * Fixtures: fix YAML ordered map support. #2665 *Manuel Holtgrewe, nfbuckley*
1786
1787 * DateTimes assume the default timezone. #7764 *Geoff Buesing*
1788
1789 * Sybase: hide timestamp columns since they're inherently read-only. #7716 *Mike Joyce*
1790
1791 * Oracle: overflow Time to DateTime. #7718 *Michael Schoen*
1792
1793 * PostgreSQL: don't use async_exec and async_query with postgres-pr. #7727, #7762 *flowdelic, toolmantim*
1794
1795 * Fix has_many :through << with custom foreign keys. #6466, #7153 *naffis, Rich Collins*
1796
1797 * Test DateTime native type in migrations, including an edge case with dates
1798 during calendar reform. #7649, #7724 [fedot, Geoff Buesing]
1799 * SQLServer: correctly schema-dump tables with no indexes or descending indexes. #7333, #7703 *Jakob Skjerning, Tom Ward*
1800
1801 * SQLServer: recognize real column type as Ruby float. #7057 *sethladd, Tom Ward*
1802
1803 * Added fixtures :all as a way of loading all fixtures in the fixture directory at once #7214 *Manfred Stienstra*
1804
1805 * Added database connection as a yield parameter to ActiveRecord::Base.transaction so you can manually rollback [David Heinemeier Hansson]. Example:
1806
1807 transaction do |transaction|
1808 david.withdrawal(100)
1809 mary.deposit(100)
1810 transaction.rollback! # rolls back the transaction that was otherwise going to be successful
1811 end
1812
1813 * Made increment_counter/decrement_counter play nicely with optimistic locking, and added a more general update_counters method *Jamis Buck*
1814
1815 * 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*
1816 Task.cache { Task.find(1); Task.find(1) } # => 1 query
1817
1818 * 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*
1819
1820 * Oracle: fix lob and text default handling. #7344 *gfriedrich, Michael Schoen*
1821
1822 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
1823
1824 * MySQL: blob and text columns may not have defaults in 5.x. Update fixtures schema for strict mode. #6695 *Dan Kubb*
1825
1826 * 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*
1827
1828 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
1829
1830 * Use Date#to_s(:db) for quoted dates. #7411 *Michael Schoen*
1831
1832 * Don't create instance writer methods for class attributes. Closes #7401 *Rick Olson*
1833
1834 * Docs: validations examples. #7343 *zackchandler*
1835
1836 * Add missing tests ensuring callbacks work with class inheritance. Closes #7339 *sandofsky*
1837
1838 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
1839
1840 * Remove useless code in #attribute_present? since 0 != blank?. Closes #7249 *Josh Susser*
1841
1842 * Fix minor doc typos. Closes #7157 *Josh Susser*
1843
1844 * Fix incorrect usage of #classify when creating the eager loading join statement. Closes #7044 *Josh Susser*
1845
1846 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
1847
1848 * Subclasses of an abstract class work with single-table inheritance. #5704, #7284 *BertG, nick+rails@ag.arizona.edu*
1849
1850 * Make sure sqlite3 driver closes open connections on disconnect *Rob Rasmussen*
1851
1852 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
1853
1854 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
1855
1856 * 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*
1857
1858 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
1859
1860 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
1861
1862 * Apply scoping during initialize instead of create. Fixes setting of foreign key when using find_or_initialize_by with scoping. *Cody Fauser*
1863
1864 * SQLServer: handle [quoted] table names. #6635 *rrich*
1865
1866 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
1867
1868 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
1869
1870 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
1871 Student.find(:all, :conditions => { :grade => 9..12 })
1872
1873 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
1874
1875 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
1876
1877 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
1878
1879 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
1880
1881 * Rollback new_record? and id when an exception is raised in a save callback. #6910 *Ben Curren, outerim*
1882
1883 * Pushing a record on an association collection doesn't unnecessarily load all the associated records. *Obie Fernandez, Jeremy Kemper*
1884
1885 * Oracle: fix connection reset failure. #6846 *leonlleslie*
1886
1887 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
1888
1889 * 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*
1890
1891 * 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*
1892
1893 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
1894
1895 * Add AssociationCollection#create! to be consistent with AssociationCollection#create when dealing with a foreign key that is a protected attribute *Cody Fauser*
1896
1897 * 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*
1898
1899 * Change fixture_path to a class inheritable accessor allowing test cases to have their own custom set of fixtures. #6672 *Zach Dennis*
1900
1901 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
1902
1903 * Simplify query_attribute by typecasting the attribute value and checking whether it's nil, false, zero or blank. #6659 *Jonathan Viney*
1904
1905 * 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*
1906
1907 * Run validations in the order they were declared. #6657 *obrie*
1908
1909 * 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*
1910
1911 * Simplify association proxy implementation by factoring construct_scope out of method_missing. #6643 *martin*
1912
1913 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
1914
1915 * 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*
1916
1917 * Don't inspect unloaded associations. #2905 *lmarlow*
1918
1919 * SQLite: use AUTOINCREMENT primary key in >= 3.1.0. #6588, #6616 *careo, lukfugl*
1920
1921 * Cache inheritance_column. #6592 *Stefan Kaes*
1922
1923 * Firebird: decimal/numeric support. #6408 *macrnic*
1924
1925 * make add_order a tad faster. #6567 *Stefan Kaes*
1926
1927 * Find with :include respects scoped :order. #5850
1928
1929 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
1930 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
1931
1932 * 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*
1933
1934 * SQLite: fix calculations workaround, remove count(distinct) query rewrite, cleanup test connection scripts. *Jeremy Kemper*
1935
1936 * SQLite: count(distinct) queries supported in >= 3.2.6. #6544 *Bob Silva*
1937
1938 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
1939
1940 * Deprecation: object transactions warning. *Jeremy Kemper*
1941
1942 * has_one :dependent => :nullify ignores nil associates. #4848, #6528 *bellis@deepthought.org, janovetz, Jeremy Kemper*
1943
1944 * 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*
1945
1946 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
1947
1948 * Document other options available to migration's add_column. #6419 *grg*
1949
1950 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
1951
1952 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
1953
1954 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
1955
1956 * Restore eager condition interpolation, document it's differences *Rick Olson*
1957
1958 * 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*
1959
1960 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
1961
1962 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
1963
1964 * 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*
1965
1966 * 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*
1967
1968 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
1969
1970 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
1971
1972 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
1973
1974 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
1975
1976 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
1977
1978 * 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*
1979
1980 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
1981
1982 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
1983
1984 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
1985
1986 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
1987
1988 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
1989
1990 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
1991
1992 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
1993
1994 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
1995
1996 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
1997
1998 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
1999
2000 * 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*
2001
2002 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
2003
2004 * Document validates_presences_of behavior with booleans: you probably want validates_inclusion_of :attr, :in => [true, false]. #2253 *Bob Silva*
2005
2006 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
2007
2008 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
2009
2010 * Deprecation: update docs. #5998 *Jakob Skjerning, Kevin Clark*
2011
2012 * Add some XmlSerialization tests for ActiveRecord *Rick Olson*
2013
2014 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
2015
2016 * Tighten rescue clauses. #5985 *james@grayproductions.net*
2017
2018 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
2019
2020 * 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*
2021
2022 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
2023
2024 * 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*
2025
2026 * SQLServer: fix eager association test. #5901 *Tom Ward*
2027
2028 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
2029
2030 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
2031
2032 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
2033
2034 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
2035
2036 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
2037
2038 * 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*
2039
2040 * 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*
2041
2042 # Create a tagging to associate the post and tag.
2043 post.tags << Tag.find_by_name('old')
2044 post.tags.create! :name => 'general'
2045
2046 # Would have been:
2047 post.taggings.create!(:tag => Tag.find_by_name('finally')
2048 transaction do
2049 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
2050 end
2051
2052 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
2053
2054 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
2055
2056 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
2057 Example: Invoice::Lineitem is given table name invoice_lineitems
2058
2059 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
2060 # people_active_last_name_index, people_active_deactivated_at_index
2061 add_index :people, [:active, :last_name]
2062 add_index :people, [:active, :deactivated_at]
2063 remove_index :people, [:active, :last_name]
2064 remove_index :people, [:active, :deactivated_at]
2065
2066 WARNING: backward-incompatibility. Multicolumn indexes created before this
2067 revision were named using the first column name only. Now they're uniquely
2068 named using all indexed columns.
2069
2070 To remove an old multicolumn index, remove_index :table_name, :first_column
2071
2072 * Fix for deep includes on the same association. *richcollins@gmail.com*
2073
2074 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
2075
2076 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
2077
2078 * Document find's :from option. Closes #5762. *andrew@redlinesoftware.com*
2079
2080 * 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*
2081
2082 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2083
2084 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2085
2086 * Add documentation for how to disable timestamps on a per model basis. Closes #5684. *matt@mattmargolis.net Marcel Molina Jr.*
2087
2088 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2089
2090 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2091
2092 * Formally deprecate the deprecated finders. *Michael Koziarski*
2093
2094 * Formally deprecate rich associations. *Michael Koziarski*
2095
2096 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2097
2098 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2099
2100 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2101
2102 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2103
2104 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2105
2106 assert (Topic.exists?(:author_name => "David"))
2107 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2108 assert (Topic.exists?(["parent_id = ?", 1]))
2109
2110 * Schema dumper quotes date :default values. *Dave Thomas*
2111
2112 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2113
2114 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2115
2116 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2117
2118 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2119
2120 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2121
2122 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2123
2124 * 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*
2125
2126 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2127
2128 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2129
2130 * 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*
2131
2132 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2133
2134 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2135
2136 * Update callbacks documentation. #3970 *Robby Russell <robby@planetargon.com>*
2137
2138 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2139
2140 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2141
2142 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2143
2144 * 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*
2145
2146 * 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*
2147
2148 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2149
2150 * Minor tweak to improve performance of ActiveRecord::Base#to_param.
2151
2152 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2153
2154 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2155
2156 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2157
2158 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2159
2160 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2161
2162 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2163
2164 * 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*
2165 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2166 Person.transaction do
2167 # select * from people where id=1 for update
2168 person = Person.find(1, :lock => true)
2169 person.visits += 1
2170 person.save!
2171 end
2172
2173 * 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*
2174
2175 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2176
2177 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2178
2179 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2180
2181 * 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*
2182
2183 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2184
2185 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2186
2187 ...is the same as:
2188 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2189
2190 This makes it easier to pass in the options from a form or otherwise outside.
2191
2192
2193 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2194
2195 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2196
2197 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2198
2199 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2200
2201 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2202
2203 * 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*
2204
2205 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2206
2207 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2208
2209 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2210 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2211 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2212
2213 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2214
2215 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2216
2217 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2218
2219 * Provide Association Extensions access to the instance that the association is being accessed from.
2220 Closes #4433 *Josh Susser*
2221
2222 * Update OpenBase adaterp's maintainer's email address. Closes #5176. *Derrick Spell*
2223
2224 * Add a quick note about :select and eagerly included associations. *Rick Olson*
2225
2226 * Add docs for the :as option in has_one associations. Closes #5144 *cdcarter@gmail.com*
2227
2228 * Fixed that has_many collections shouldn't load the entire association to do build or create *David Heinemeier Hansson*
2229
2230 * Added :allow_nil option for aggregations #5091 *Ian White*
2231
2232 * Fix Oracle boolean support and tests. Closes #5139. *Michael Schoen*
2233
2234 * 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*
2235
2236 * Call Inflector#demodulize on the class name when eagerly including an STI model. Closes #5077 *info@loobmedia.com*
2237
2238 * Preserve MySQL boolean column defaults when changing a column in a migration. Closes #5015. *pdcawley@bofh.org.uk*
2239
2240 * 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*
2241
2242 * Dates and times interpret empty strings as nil rather than 2000-01-01. #4830 *kajism@yahoo.com*
2243
2244 * Allow :uniq => true with has_many :through associations. *Jeremy Kemper*
2245
2246 * Ensure that StringIO is always available for the Schema dumper. *Marcel Molina Jr.*
2247
2248 * Allow AR::Base#to_xml to include methods too. Closes #4921. *johan@textdrive.com*
2249
2250 * Replace superfluous name_to_class_name variant with camelize. *Marcel Molina Jr.*
2251
2252 * Replace alias method chaining with Module#alias_method_chain. *Marcel Molina Jr.*
2253
2254 * Replace Ruby's deprecated append_features in favor of included. *Marcel Molina Jr.*
2255
2256 * Remove duplicate fixture entry in comments.yml. Closes #4923. *Blair Zajac <blair@orcaware.com>*
2257
2258 * Update FrontBase adapter to check binding version. Closes #4920. *mlaster@metavillage.com*
2259
2260 * New Frontbase connections don't start in auto-commit mode. Closes #4922. *mlaster@metavillage.com*
2261
2262 * When grouping, use the appropriate option key. *Marcel Molina Jr.*
2263
2264 * Only modify the sequence name in the FrontBase adapter if the FrontBase adapter is actually being used. *Marcel Molina Jr.*
2265
2266 * 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*
2267
2268 * Add warning about the proper way to validate the presence of a foreign key. Closes #4147. *Francois Beausoleil <francois.beausoleil@gmail.com>*
2269
2270 * Fix syntax error in documentation. Closes #4679. *Mislav Marohnić*
2271
2272 * Add Oracle support for CLOB inserts. Closes #4748. *schoenm@earthlink.net sandra.metz@duke.edu*
2273
2274 * Various fixes for sqlserver_adapter (odbc statement finishing, ado schema dumper, drop index). Closes #4831. *kajism@yahoo.com*
2275
2276 * Add support for :order option to with_scope. Closes #3887. *eric.daspet@survol.net*
2277
2278 * Prettify output of schema_dumper by making things line up. Closes #4241 *Caio Chassot <caio@v2studio.com>*
2279
2280 * Make build_postgresql_databases task make databases owned by the postgres user. Closes #4790. *mlaster@metavillage.com*
2281
2282 * Sybase Adapter type conversion cleanup. Closes #4736. *dev@metacasa.net*
2283
2284 * Fix bug where calculations with long alias names return null. *Rick Olson*
2285
2286 * Raise error when trying to add to a has_many :through association. Use the Join Model instead. *Rick Olson*
2287
2288 @post.tags << @tag # BAD
2289 @post.taggings.create(:tag => @tag) # GOOD
2290
2291 * Allow all calculations to take the :include option, not just COUNT (closes #4840) *Rick Olson*
2292
2293 * Update inconsistent migrations documentation. #4683 *machomagna@gmail.com*
2294
2295 * Add ActiveRecord::Errors#to_xml *Jamis Buck*
2296
2297 * Properly quote index names in migrations (closes #4764) *John Long*
2298
2299 * Fix the HasManyAssociation#count method so it uses the new ActiveRecord::Base#count syntax, while maintaining backwards compatibility. *Rick Olson*
2300
2301 * Ensure that Associations#include_eager_conditions? checks both scoped and explicit conditions *Rick Olson*
2302
2303 * Associations#select_limited_ids_list adds the ORDER BY columns to the SELECT DISTINCT List for postgresql. *Rick Olson*
2304
2305 * DRY up association collection reader method generation. *Marcel Molina Jr.*
2306
2307 * DRY up and tweak style of the validation error object. *Marcel Molina Jr.*
2308
2309 * Add :case_sensitive option to validates_uniqueness_of (closes #3090) *Rick Olson*
2310
2311 class Account < ActiveRecord::Base
2312 validates_uniqueness_of :email, :case_sensitive => false
2313 end
2314
2315 * Allow multiple association extensions with :extend option (closes #4666) *Josh Susser*
2316
2317 class Account < ActiveRecord::Base
2318 has_many :people, :extend => [FindOrCreateByNameExtension, FindRecentExtension]
2319 end
2320
2321 *1.15.3* (March 12th, 2007)
2322
2323 * Allow a polymorphic :source for has_many :through associations. Closes #7143 [protocool]
2324
2325 * Consistently quote primary key column names. #7763 [toolmantim]
2326
2327 * Fixtures: fix YAML ordered map support. #2665 [Manuel Holtgrewe, nfbuckley]
2328
2329 * Fix has_many :through << with custom foreign keys. #6466, #7153 [naffis, Rich Collins]
2330
2331
2332 ## 1.15.2 (February 5th, 2007) ##
2333
2334 * Pass a range in :conditions to use the SQL BETWEEN operator. #6974 *Dan Manges*
2335 Student.find(:all, :conditions => { :grade => 9..12 })
2336
2337 * Don't create instance writer methods for class attributes. *Rick Olson*
2338
2339 * 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*
2340
2341 * SQLServer: don't choke on strings containing 'null'. #7083 *Jakob Skjerning*
2342
2343 * 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*
2344
2345 * MySQL: SET SQL_AUTO_IS_NULL=0 so 'where id is null' doesn't select the last inserted id. #6778 *Jonathan Viney, timc*
2346
2347 * Fixtures use the table name and connection from set_fixture_class. #7330 *Anthony Eden*
2348
2349 * SQLServer: quote table name in indexes query. #2928 *keithm@infused.org*
2350
2351
2352 ## 1.15.1 (January 17th, 2007) ##
2353
2354 * Fix nodoc breaking of adapters
2355
2356
2357 ## 1.15.0 (January 16th, 2007) ##
2358
2359 * [DOC] clear up some ambiguity with the way has_and_belongs_to_many creates the default join table name. #7072 *Jeremy McAnally*
2360
2361 * change_column accepts :default => nil. Skip column options for primary keys. #6956, #7048 *Dan Manges, Jeremy Kemper*
2362
2363 * 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*
2364
2365 * Oracle: create_table takes a :sequence_name option to override the 'tablename_seq' default. #7000 *Michael Schoen*
2366
2367 * MySQL: retain SSL settings on reconnect. #6976 *randyv2*
2368
2369 * SQLServer: handle [quoted] table names. #6635 *rrich*
2370
2371 * acts_as_nested_set works with single-table inheritance. #6030 *Josh Susser*
2372
2373 * PostgreSQL, Oracle: correctly perform eager finds with :limit and :order. #4668, #7021 *eventualbuddha, Michael Schoen*
2374
2375 * Fix the Oracle adapter for serialized attributes stored in CLOBs. Closes #6825 *mschoen, tdfowler*
2376
2377 * [DOCS] Apply more documentation for ActiveRecord Reflection. Closes #4055 *Robby Russell*
2378
2379 * [DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 *Caio Chassot*
2380
2381 * Bring the sybase adapter up to scratch for 1.2 release. *jsheets*
2382
2383 * Oracle: fix connection reset failure. #6846 *leonlleslie*
2384
2385 * Subclass instantiation doesn't try to explicitly require the corresponding subclass. #6840 *leei, Jeremy Kemper*
2386
2387 * 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*
2388
2389 * find supports :lock with :include. Check whether your database allows SELECT ... FOR UPDATE with outer joins before using. #6764 *vitaly, Jeremy Kemper*
2390
2391 * Support nil and Array in :conditions => { attr => value } hashes. #6548 *Assaf, Jeremy Kemper*
2392 find(:all, :conditions => { :topic_id => [1, 2, 3], :last_read => nil }
2393
2394 * Quote ActiveSupport::Multibyte::Chars. #6653 *Julian Tarkhanov*
2395
2396 * 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*
2397
2398 * 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*
2399
2400 * Oracle: automatically detect the primary key. #6594 *vesaria, Michael Schoen*
2401
2402 * 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*
2403
2404 * Firebird: decimal/numeric support. #6408 *macrnic*
2405
2406 * Find with :include respects scoped :order. #5850
2407
2408 * Dynamically generate reader methods for serialized attributes. #6362 *Stefan Kaes*
2409
2410 * Deprecation: object transactions warning. *Jeremy Kemper*
2411
2412 * has_one :dependent => :nullify ignores nil associates. #6528 *janovetz, Jeremy Kemper*
2413
2414 * 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*
2415
2416 * Make add_column use the options hash with the Sqlite Adapter. Closes #6464 *obrie*
2417
2418 * Document other options available to migration's add_column. #6419 *grg*
2419
2420 * MySQL: all_hashes compatibility with old MysqlRes class. #6429, #6601 *Jeremy Kemper*
2421
2422 * Fix has_many :through to add the appropriate conditions when going through an association using STI. Closes #5783. *Jonathan Viney*
2423
2424 * fix select_limited_ids_list issues in postgresql, retain current behavior in other adapters *Rick Olson*
2425
2426 * Restore eager condition interpolation, document it's differences *Rick Olson*
2427
2428 * 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*
2429
2430 * Add #delete support to has_many :through associations. Closes #6049 *Martin Landers*
2431
2432 * Reverted old select_limited_ids_list postgresql fix that caused issues in mysql. Closes #5851 *Rick Olson*
2433
2434 * 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*
2435
2436 * 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*
2437
2438 * Added update_attributes! which uses save! to raise an exception if a validation error prevents saving #6192 *jonathan*
2439
2440 * Deprecated add_on_boundary_breaking (use validates_length_of instead) #6292 *Bob Silva*
2441
2442 * The has_many create method works with polymorphic associations. #6361 *Dan Peterson*
2443
2444 * MySQL: introduce Mysql::Result#all_hashes to support further optimization. #5581 *Stefan Kaes*
2445
2446 * save! shouldn't validate twice. #6324 *maiha, Bob Silva*
2447
2448 * 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*
2449
2450 * Add an attribute reader method for ActiveRecord::Base.observers *Rick Olson*
2451
2452 * Deprecation: count class method should be called with an options hash rather than two args for conditions and joins. #6287 *Bob Silva*
2453
2454 * has_one associations with a nil target may be safely marshaled. #6279 *norbauer, Jeremy Kemper*
2455
2456 * Duplicate the hash provided to AR::Base#to_xml to prevent unexpected side effects *Michael Koziarski*
2457
2458 * Add a :namespace option to AR::Base#to_xml *Michael Koziarski*
2459
2460 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. *Jeremy Kemper*
2461
2462 * Mock Time.now for more accurate Touch mixin tests. #6213 *Dan Peterson*
2463
2464 * Improve yaml fixtures error reporting. #6205 *Bruce Williams*
2465
2466 * Rename AR::Base#quote so people can use that name in their models. #3628 *Michael Koziarski*
2467
2468 * Add deprecation warning for inferred foreign key. #6029 *Josh Susser*
2469
2470 * 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*
2471
2472 * Deprecation: use :dependent => :delete_all rather than :exclusively_dependent => true. #6024 *Josh Susser*
2473
2474 * Optimistic locking: gracefully handle nil versions, treat as zero. #5908 *Tom Ward*
2475
2476 * to_xml: the :methods option works on arrays of records. #5845 *Josh Starcher*
2477
2478 * has_many :through conditions are sanitized by the associating class. #5971 *martin.emde@gmail.com*
2479
2480 * Fix spurious newlines and spaces in AR::Base#to_xml output *Jamis Buck*
2481
2482 * 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*
2483
2484 * Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. #5911 *Jonathan Viney*
2485
2486 * 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*
2487
2488 * Clashing type columns due to a sloppy join shouldn't wreck single-table inheritance. #5838 *Kevin Clark*
2489
2490 * Fixtures: correct escaping of \n and \r. #5859 *evgeny.zislis@gmail.com*
2491
2492 * Migrations: gracefully handle missing migration files. #5857 *eli.gordon@gmail.com*
2493
2494 * MySQL: update test schema for MySQL 5 strict mode. #5861 *Tom Ward*
2495
2496 * to_xml: correct naming of included associations. #5831 *Josh Starcher*
2497
2498 * 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*
2499
2500 * 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*
2501
2502 # Create a tagging to associate the post and tag.
2503 post.tags << Tag.find_by_name('old')
2504 post.tags.create! :name => 'general'
2505
2506 # Would have been:
2507 post.taggings.create!(:tag => Tag.find_by_name('finally')
2508 transaction do
2509 post.taggings.create!(:tag => Tag.create!(:name => 'general'))
2510 end
2511
2512 * Cache nil results for :included has_one associations also. #5787 *Michael Schoen*
2513
2514 * Fixed a bug which would cause .save to fail after trying to access a empty has_one association on a unsaved record. *Tobias Lütke*
2515
2516 * Nested classes are given table names prefixed by the singular form of the parent's table name. *Jeremy Kemper*
2517 Example: Invoice::Lineitem is given table name invoice_lineitems
2518
2519 * Migrations: uniquely name multicolumn indexes so you don't have to. *Jeremy Kemper*
2520 # people_active_last_name_index, people_active_deactivated_at_index
2521 add_index :people, [:active, :last_name]
2522 add_index :people, [:active, :deactivated_at]
2523 remove_index :people, [:active, :last_name]
2524 remove_index :people, [:active, :deactivated_at]
2525
2526 WARNING: backward-incompatibility. Multicolumn indexes created before this
2527 revision were named using the first column name only. Now they're uniquely
2528 named using all indexed columns.
2529
2530 To remove an old multicolumn index, remove_index :table_name, :first_column
2531
2532 * Fix for deep includes on the same association. *richcollins@gmail.com*
2533
2534 * Tweak fixtures so they don't try to use a non-ActiveRecord class. *Kevin Clark*
2535
2536 * Remove ActiveRecord::Base.reset since Dispatcher doesn't use it anymore. *Rick Olson*
2537
2538 * 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*
2539
2540 * Replace Reloadable with Reloadable::Deprecated. *Nicholas Seckar*
2541
2542 * Cache nil results for has_one associations so multiple calls don't call the database. Closes #5757. *Michael Schoen*
2543
2544 * Don't save has_one associations unnecessarily. #5735 *Jonathan Viney*
2545
2546 * Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting. *Rick Olson*
2547
2548 * Formally deprecate the deprecated finders. *Michael Koziarski*
2549
2550 * Formally deprecate rich associations. *Michael Koziarski*
2551
2552 * Fixed that default timezones for new / initialize should uphold utc setting #5709 *daniluk@yahoo.com*
2553
2554 * Fix announcement of very long migration names. #5722 *blake@near-time.com*
2555
2556 * The exists? class method should treat a string argument as an id rather than as conditions. #5698 *jeremy@planetargon.com*
2557
2558 * Fixed to_xml with :include misbehaviors when invoked on array of model instances #5690 *alexkwolfe@gmail.com*
2559
2560 * Added support for conditions on Base.exists? #5689 [Josh Peek]. Examples:
2561
2562 assert (Topic.exists?(:author_name => "David"))
2563 assert (Topic.exists?(:author_name => "Mary", :approved => true))
2564 assert (Topic.exists?(["parent_id = ?", 1]))
2565
2566 * Schema dumper quotes date :default values. *Dave Thomas*
2567
2568 * Calculate sum with SQL, not Enumerable on HasManyThrough Associations. *Dan Peterson*
2569
2570 * Factor the attribute#{suffix} methods out of method_missing for easier extension. *Jeremy Kemper*
2571
2572 * Patch sql injection vulnerability when using integer or float columns. *Jamis Buck*
2573
2574 * Allow #count through a has_many association to accept :include. *Dan Peterson*
2575
2576 * create_table rdoc: suggest :id => false for habtm join tables. *Zed Shaw*
2577
2578 * PostgreSQL: return array fields as strings. #4664 *Robby Russell*
2579
2580 * 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*
2581
2582 * SQLServer: fix db:schema:dump case-sensitivity. #4684 *Will Rogers*
2583
2584 * Oracle: BigDecimal support. #5667 *Michael Schoen*
2585
2586 * 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*
2587
2588 * Firebird migrations support. #5337 *Ken Kunz <kennethkunz@gmail.com>*
2589
2590 * PostgreSQL: create/drop as postgres user. #4790 *mail@matthewpainter.co.uk, mlaster@metavillage.com*
2591
2592 * PostgreSQL: correctly quote the ' in pk_and_sequence_for. #5462 *tietew@tietew.net*
2593
2594 * PostgreSQL: correctly quote microseconds in timestamps. #5641 *rick@rickbradley.com*
2595
2596 * Clearer has_one/belongs_to model names (account has_one :user). #5632 *matt@mattmargolis.net*
2597
2598 * 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*
2599
2600 * 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*
2601
2602 * Added :group to available options for finds done on associations #5516 *mike@michaeldewey.org*
2603
2604 * Observers also watch subclasses created after they are declared. #5535 *daniels@pronto.com.au*
2605
2606 * Removed deprecated timestamps_gmt class methods. *Jeremy Kemper*
2607
2608 * rake build_mysql_database grants permissions to rails@localhost. #5501 *brianegge@yahoo.com*
2609
2610 * PostgreSQL: support microsecond time resolution. #5492 *alex@msgpad.com*
2611
2612 * Add AssociationCollection#sum since the method_missing invokation has been shadowed by Enumerable#sum.
2613
2614 * Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record. *Sam Stephenson*
2615
2616 * 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*
2617 # Obtain an exclusive lock on person 1 so we can safely increment visits.
2618 Person.transaction do
2619 # select * from people where id=1 for update
2620 person = Person.find(1, :lock => true)
2621 person.visits += 1
2622 person.save!
2623 end
2624
2625 * 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*
2626
2627 * Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections. *Jeremy Kemper*
2628
2629 * Change AR::Base#to_param to return a String instead of a Fixnum. Closes #5320. *Nicholas Seckar*
2630
2631 * Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. #5299 (skaes@web.de)
2632
2633 * 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*
2634
2635 * Added simple hash conditions to find that'll just convert hash to an AND-based condition string #5143 [Hampton Catlin]. Example:
2636
2637 Person.find(:all, :conditions => { :last_name => "Catlin", :status => 1 }, :limit => 2)
2638
2639 ...is the same as:
2640 Person.find(:all, :conditions => [ "last_name = ? and status = ?", "Catlin", 1 ], :limit => 2)
2641
2642 This makes it easier to pass in the options from a form or otherwise outside.
2643
2644
2645 * Fixed issues with BLOB limits, charsets, and booleans for Firebird #5194, #5191, #5189 *kennethkunz@gmail.com*
2646
2647 * Fixed usage of :limit and with_scope when the association in scope is a 1:m #5208 *alex@purefiction.net*
2648
2649 * Fixed migration trouble with SQLite when NOT NULL is used in the new definition #5215 *greg@lapcominc.com*
2650
2651 * Fixed problems with eager loading and counting on SQL Server #5212 *kajism@yahoo.com*
2652
2653 * Fixed that count distinct should use the selected column even when using :include #5251 *anna@wota.jp*
2654
2655 * 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*
2656
2657 * Allow models to override to_xml. #4989 *Blair Zajac <blair@orcaware.com>*
2658
2659 * PostgreSQL: don't ignore port when host is nil since it's often used to label the domain socket. #5247 *shimbo@is.naist.jp*
2660
2661 * Records and arrays of records are bound as quoted ids. *Jeremy Kemper*
2662 Foo.find(:all, :conditions => ['bar_id IN (?)', bars])
2663 Foo.find(:first, :conditions => ['bar_id = ?', bar])
2664
2665 * Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty *David Heinemeier Hansson*
2666
2667 * Add a list of regexes assert_queries skips in the ActiveRecord test suite. *Rick Olson*
2668
2669 * Fix the has_and_belongs_to_many #create doesn't populate the join for new records. Closes #3692 *Josh Susser*
2670
2671 * Provide Association Extensions access to the instance that the association is being accessed from.
2672 Closes #4433 *Josh Susser*
2673