All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

• Use after_save instead of after_commit for clear_scope_changed callback #407 (@Flixt)
• Rename add_to_list_top and add_to_list_bottom private methods to avoid_collision that handles both cases as well as the case where :add_new_at is nil. Setting an explicit position when :add_new_at is nil will now shuffle other items out of the way if necessary. This may break existing workarounds you have in place to deal with this bug. #411. ([brendon])

• Add Tests ruby 2.7 and 3.0 #393 ([QWYNG])

• Silence deprecation warnings in Rails 6 #384 ([h-lame])
• Add explicit requirement of ActiveSupport::Inflector #387 ([rdvdijk])

• Get foreign key from reflections when possible #383 (jefftsang)

• gemspec: Drop defunct rubyforge_project directive #373 (olleolleolle)

• Invert order when incrementing to circumvent unique index violations (#368)

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• BREAKING CHANGE: Support for Rails 3.2 > 4.1 has been removed. 0.9.19 is the last version that supports these Rails versions

• Added Troubleshooting Database Deadlock Errors section to README.md
• Added support for Rails 6.0 in testing
• Various README fixes
• A new method called current_position now exists and returns the integer position of the item it's called on, or nil if the position isn't set.

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• Allow acts_as_list_no_update blocks to be nested @conorbdaly

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• Added additional gemspec metadata @boone
• Add gem version badge to README @joshuapinter
• Add touch on update configuration @mgbatchelor

• Let's start a new direction with the CHANGELOG file @mainameiz

• Fix sqlite3 gem pinning breaking tests

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Closed issues:

• Inconsistent behavior #330
• Using top\_of\_list set to 1 and setting a record to index 0 triggers a PG::UniqueViolation #322

Merged pull requests:

• Feature/add exception to wrong position #323 (TheNeikos)
• Methods move_to_bottom and move_to_top should not fail when there are unique constraints #320 (faucct)

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Closed issues:

• Re-ordering at specific position #318
• no\_update is not applied to subclasses #314
• NoMethodError: undefined method `acts_as_list' #303
• Cannot create item at position 0 #297

Merged pull requests:

• Unscope select to avoid PG::UndefinedFunction #283 (donv)

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Merged pull requests:

• Fix #314: no\_update is not applied to subclasses #315 (YoranBrondsema)

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Closed issues:

• insert\_at saves invalid ActiveRecord objects #311

Merged pull requests:

• #311 Don't insert invalid ActiveRecord objects #312 (seanabrahams)

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Merged pull requests:

• Fix unique index constraint failure on item destroy #313 (yjukaku)

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Closed issues:

• acts_as_list methods on has_many through #308
• Travis badge #307
• Unscoping breaks STI subclasses, but is soon to be fixed in Rails #291
• Refactor string eval for scope_condition #227

Merged pull requests:

• mocha/minitest, not mocha/mini_test now. #310 (jmarkbrooks)

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Closed issues:

• Setting position: nil on update returns Column 'position' cannot be null instead of putting the item at the start or the end of the list, like it does on create. #302
• Switching to Semaphore #301
• Dropping jruby support #300
• Rails 5.2.0 #299
• Cannot update record position when scoped to enum #298
• add\_new\_at: :top does not work #296
• remove_from_list causing "wrong number of arguments (given 2, expected 0..1)" #293
• Passing raw strings to reorder deprecated in Rails 5.2 #290

Merged pull requests:

• Fix Test Suite #306 (brendon)
• Add frozen_string_literal pragma to ruby files #305 (krzysiek1507)
• Use symbols instead of SQL strings for reorder (for Rails 5.2) #294 (jhawthorn)

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Closed issues:

• Make insert_at respect position when creating a new record #287
• Why does acts_as_list override rails validation on it's own field? #269

Merged pull requests:

• Change error classes parents #288 (alexander-lazarov)

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Merged pull requests:

• Added fixed values option for scope array #286 (smoyth)

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Closed issues:

• Deadlocking in update_positions count query #285
• Updating the position fails uniqueness constraint. #275

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Closed issues:

• undefined method `+' for nil:NilClass #278
• Enum does not scope correctly #277
• Can we don't use remove_from_list when destroy a lot objects? #276
• The NoUpdate code rely's on AS::Concern #273
• ActiveRecord associations are no longer required (even though belongs_to_required_by_default == true) #268
• Unique constraint violation on move_higher, move_lower, destroy #267

Merged pull requests:

• Fix Fixnum deprecation warnings. #282 (patrickdavey)
• Fix update to scope that was defined with an enum #281 (scottmalone)
• Refactor update_all_with_touch #279 (ledestin)
• Remove AS::Concern from NoUpdate #274 (brendon)
• Use ActiveSupport.on\_load to hook into ActiveRecord #272 (brendon)

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Closed issues:

• acts_as_list_class.maximum(position_column) is causing the entire table to lock #264
• Be more precise with unscope-ing #263

Merged pull requests:

• Use bottom_position_in_list instead of the highest value in the table #266 (brendon)
• Be more surgical about unscoping #265 (brendon)

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Merged pull requests:

• Optimize first? and last? instance methods. #262 (marshall-lee)

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Closed issues:

• Rails 5.1.0.beta1 deprecation #257
• Move item X after item Y #256
• Is there way to specify the position when creating a resource? #255

Merged pull requests:

• Don't update a child destroyed via relation #261 (brendon)
• No update list for collection classes #260 (IlkhamGaysin)
• Fix deprecation introduced in ActiveRecord 5.1.0.beta1. Closes #257 #259 (CvX)
• Refactor column definer module #258 (ledestin)

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Closed issues:

• Getting invalid input syntax for uuid #253

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Closed issues:

• DEPRECATION WARNING on rails 5.0 as of acts_as_list 0.9 #251
• highter_items returns items with the same position value #247
• Broken with unique constraint on position #245

Merged pull requests:

• fixes #251 table_exists? deprecation warning with Rails 5.0 #252 (zharikovpro)

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Closed issues:

• warning: too many arguments for format string #239
• Broken tests related to time comparison #238
• Shuffling positions is halting the callback chain #234
• Reorder positions #233
• Tests break when upgrading from 0.7.2 to 0.7.4 #228
• RE #221 needing a test #226
• Adding to existing model with data and methods don't work #209
• Position is set incorrectly when circular dependencies exist #153

Merged pull requests:

• Revert "Updates documentation with valid string interpolation syntax" #250 (brendon)
• Updates documentation with valid string interpolation syntax #249 (naveedkakal)
• Comply to tests warnings #248 (randoum)
• insert_at respects unique not null check (>= 0) db constraints #246 (zharikovpro)
• acts_as_list_no_update #244 (randoum)
• Update README.md #243 (rahuldstiwari)
• Fixed tests to prevent warning: too many arguments for format string #242 (brendon)
• Be explicit about ordering when mapping :pos #241 (brendon)
• Improve load method #240 (brendon)
• Fix non regular sequence movement #237 (tiagotex)
• Add travis config for testing against multiple databases #236 (fschwahn)
• Extract modules #229 (ledestin)

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Closed issues:

• We're a repo now, no longer a fork attached to rails/acts_as_list #232
• Break away from rails/acts_as_list #224
• Problem when inserting straight at top of list #109

Merged pull requests:

• Show items with same position in higher and lower items #231 (jpalumickas)
• fix setting position when previous position was nil #230 (StoneFrog)

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Closed issues:

• Rubinius Intermittent testing error #218
• ActiveRecord dependency causes rake assets:compile to fail without access to a database #84

Merged pull requests:

• Refactor class_eval with string into class_eval with block #215 (rdvdijk)

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Closed issues:

• Behavior with DB default seems unclear #219

Merged pull requests:

• No longer a need specify additional rbx gems #225 (brendon)
• Fix position when no serial positions #223 (jpalumickas)
• Bug: Specifying a position with add_new_at: :top fails to insert at that position #220 (brendon)

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Closed issues:

• Issue after upgrading to 0.7.5: No connection pool with id primary found. #214
• Changing scope is inconsistent based on add_new_at #138
• Duplicate positions and lost items #76

Merged pull requests:

• Add quoted table names to some columns #221 (jpalumickas)
• Appraisals cleanup #217 (brendon)
• Fix insert_at_position in race condition #195 (danielross)

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Closed issues:

• add_new_at nil with scope causes NoMethodError #211

Merged pull requests:

• Add class method acts_as_list_top as reader for configured top_of_list #213 (krzysiek1507)
• Bugfix/add new at nil on scope change #212 (greatghoul)

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Implemented enhancements:

• Touch when reordering #173 (botandrose)

Closed issues:

• Exception raised when calling destroy "NameError - instance variable @scope_changed not defined:" #206
• Undefined instance variable @scope_changed since 0.7.3 #199
• Reordering large lists is slow #198
• Reparenting child leaves gap in source list in rails 5 #194
• Support rails 5 ? #186
• I get a NoMethodError: undefined method `acts_as_list' when trying to include acts_as_list #176
• Phenomenon of mysterious value of the position is skipped by one #166
• Model.find being called twice with acts_as_list on destroy #161
• scope\_changed? problem with acts_as_paranoid #158
• Inconsistent behaviour between Symbol and Array scopes #155
• insert_at doesn't seem to be working in ActiveRecord callback (Rails 4.2) #150
• Project Documentation link redirects to expired domain #149
• Problem when updating an position of array of AR objects. #137
• Unexpected behaviour when inserting consecutive items with default positions #124
• self.reload prone to error #122
• Rails 3.0.x in_list causes the return of default_scope #120
• Relationships with dependency:destroy cause ActiveRecord::RecordNotFound #118
• Using insert_at with values with type String #117
• Batch setting of position #112
• position: 0 now makes model pushed to top? #110
• Create element in default position #103
• Enhancement: Expose scope object #97
• Shuffle list #96
• Creating an item with a nil scope should not add it to the list #92
• Performance Improvements #88
• has_many :through or has_many_and_belongs_to_many support #86
• move_higher/move_lower vs move_to_top/move_to_bottom act differently when item is already at top or bottom #77
• Limiting the list size #61
• Adding multiple creates strange ordering #55
• Feature: sort #26

Merged pull requests:

• Fix position when no serial positions #208 (PoslinskiNet)
• Removed duplicated assignment #207 (shunwen)
• Quote all identifiers #205 (fabn)
• Start testing Rails 5 #203 (brendon)
• Lock! the record before destroying #201 (brendon)
• Fix ambiguous column error when joining some relations #180 (natw)

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Closed issues:

• Releasing a new gem version #196

Merged pull requests:

• Fix scope changed #200 (brendon)

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Closed issues:

• DEPRECATION WARNING: Passing string to define callback on Rails 5 beta 3 #191
• Why is add\_to\_list\_bottom private? #187
• Ordering of children when there are two possible parent models. #172
• Fix the jruby and rbx builds #169
• Unable to run tests #162
• shuffle_positions_on_intermediate_items is creating problems #134
• introduce Changelog file to quickly track changes #68
• Mongoid support? #52

Merged pull requests:

• Add filename/line number to class_eval call #193 (hfwang)
• Use a symbol as a string to define callback #192 (brendon)
• Pin changelog generator to a working version #190 (fabn)
• Fix bug, position is recomputed when object saved #188 (chrisortman)
• Update bundler before running tests, fixes test run on travis #179 (fabn)
• Changelog generator, closes #68 #177 (fabn)
• Updating README example #175 (ryanbillings)
• Adds description about various options available with the acts_as_list method #168 (udit7590)
• Small changes to DRY up list.rb #163 (Albin-Willman)
• Only swap changed attributes which are persistable, i.e. are DB columns. #152 (ludwigschubert)

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Merged pull requests:

• Update README.md #159 (tibastral)

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Closed issues:

• Problem with reordering scoped list items #154
• Can no longer load acts_as_list in isolation if Rails is installed #145

Merged pull requests:

• Fix regression with using acts_as_list on base classes #147 (botandrose)
• Don't require rails when loading #146 (botandrose)

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Closed issues:

• Deprecation Warning: sanitize_sql_hash_for_conditions is deprecated and will be removed in Rails 5.0 #143
• Release a new gem version #136

Merged pull requests:

• Fix sanitize_sql_hash_for_conditions deprecation warning in Rails 4.2 #140 (eagletmt)
• Simpler method to find the subclass name #139 (brendon)
• Rails4 enum column support #130 (arunagw)
• use eval for determing the self.class.name useful when this is used in an abstract class #123 (flarik)

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Closed issues:

• I want to have my existing records works like list #133
• Add Support For Multiple Indexes #127
• changing parent_id does not update item positions #126
• How to exclude objects to be positioned? #125
• Scope for Polymorphic association + ManyToMany #106
• Bug when use #insert_at on an invalid ActiveRecord object #99
• has_many :through with acts as list #95
• Update position when scope changes #19

Merged pull requests:

• Cast column default value to int before comparing with position column #129 (wioux)
• Fix travis builds for rbx #128 (meineerde)
• Use unscoped blocks instead of chaining #121 (brendon)
• Make acts_as_list more compatible with BINARY column #116 (sikachu)
• Added help notes on non-association scopes #115 (VorontsovIE)
• Let AR::Base properly lazy-loaded if Railtie is available #114 (amatsuda)

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Closed issues:

• insert_at creates gaps #108
• move_lower and move_higher not working returning nil #57
• Mass-assignment issue with 0.1.8 #50
• validates error #49
• Ability to move multiple at once #40
• Duplicates created when using accepts_nested_attributes_for #29

Merged pull requests:

• Update README #107 (Senjai)
• Add license info: license file and gemspec #105 (chulkilee)
• Fix top position when position is lower than top position #104 (csaura)
• Get specs running under Rails 4.1.0.beta1 #101 (petergoldstein)
• Add support for JRuby and Rubinius specs #100 (petergoldstein)
• Use the correct syntax for conditions in Rails 4 on the readme. #94 (gotjosh)
• Adds required\_ruby\_version to gemspec #90 (tvdeyen)

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Closed issues:

• act_as_list didn't install with bundle install #83
• Cannot update to version 0.1.7 #48
• when position is null all new items get inserted in position 1 #41

Merged pull requests:

• Test against activerecord v3 and v4 #82 (sanemat)
• Fix check_scope to work on lists with array scopes #81 (conzett)
• Rails4 compatibility #80 (philippfranke)
• Add tests for moving within scope and add method: move_within_scope #79 (philippfranke)
• Option to not automatically add items to the list #72 (forrest)

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Merged pull requests:

• Fix update_all deprecation warnings in Rails 4.0.0.beta1 #73 (soffes)
• Add quotes to Id in SQL requests #69 (noefroidevaux)
• Update position when scope changes #67 (philippfranke)
• add and categorize public instance methods in readme; add misc notes to ... #66 (barelyknown)
• Updates #bottom_item .find syntax to >= Rails 3 compatible syntax. #65 (tvdeyen)
• add GitHub Flavored Markdown to README #63 (phlipper)

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Closed issues:

• Mysql2 error #54
• Use alternative column name? #53

Merged pull requests:

• attr-accessible can be damaging, is not always necessary. #60 (graemeworthy)
• More reliable lower/higher item detection #59 (miks)
• Instructions for using an array with scope #58 (zukowski)
• Attr accessible patch, should solve #50 #51 (fabn)
• support accepts_nested_attributes_for multi-destroy #46 (saberma)

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Full Changelog

Closed issues:

• Remove use of update_attribute #44
• Order is reversed when adding multiple rows at once #34

Merged pull requests:

• Fixed issue with update_positions that wasn't taking 'scope_condition' into account #47 (bastien)
• Replaced usage of update_attribute with update_attribute! #45 (kevmoo)
• use self.class.primary_key instead of id in shuffle_positions_on_intermediate_items #42 (servercrunch)
• initialize gem #39 (megatux)
• Added ability to set item positions directly (e.g. In a form) #38 (dubroe)
• Prevent SQL error when position_column is not unique #37 (hinrik)
• Add installation instructions to README.md #35 (mark-rushakoff)

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Closed issues:

• eval mistakenly resolved the module path #32
• Duplicated positions when creating parent and children from scratch in 0.1.5 #31
• add info about v0.1.5 require Rails 3 #28
• position not updated with move_higher or move_lover #23

Merged pull requests:

• update ActiveRecord class eval to support ActiveSupport on_load #33 (mergulhao)
• Add :add_new_at option #30 (mjbellantoni)

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Closed issues:

• increment_positions_on_lower_items called twice on insert_at with new item #21
• Change bundler dependency from ~>1.0.0 to ~>1.0 #20
• decrement_positions_on_lower_items method #17
• New gem release #16
• acts_as_list :scope => "doesnt_seem_to_work" #12
• don't work perfectly with default_scope #11
• MySQL: Position column MUST NOT have default #10
• insert_at fails on postgresql w/ non-null constraint on postion_column #8

Merged pull requests:

• Efficiency improvement for insert_at when repositioning an existing item #27 (bradediger)
• Use before validate instead of before create #25 (webervin)
• Massive test refactorings. #24 (splattael)
• Silent migrations to reduce test noise. #22 (splattael)
• Should decrement lower items after the item has been destroyed to avoid unique key conflicts. #18 (aepstein)
• Fix spelling and grammer #15 (tmiller)
• store_at_0 should yank item from the list then decrement items to avoid r #14 (aepstein)
• Support default_scope ordering by calling .unscoped #13 (tanordheim)

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Merged pull requests:

• Fix sqlite3 dependency #7 (joneslee85)

Closed issues:

• Graph like behaviour #5
• Updated Gem? #4

Merged pull requests:

• Converted into a gem... plus some slight refactors #6 (chaffeqa)
• Fixed test issue for test_injection: expected SQL was reversed. #3 (afriqs)
• Added an option to set the top of the position #2 (danielcooper)
• minor change to acts_as_list's callbacks #1 (tiegz)