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path: root/activerecord/lib/active_record/relation/finder_methods.rb
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* Fix `find_nth` with `limit_value`Ryuta Kamizono2017-02-261-3/+7
| | | | | If the `index` exceeds a `limit`, simply return an empty result without querying the database.
* Remove duplicated private methodkami-zh2017-02-261-102/+100
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* Fix grammar typo about sort in finder_methods.rbKevin Huang2017-01-301-2/+2
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* Raise ArgumentError when a instance of ActiveRecord::Base is passed toRafael Mendonça França2017-01-031-7/+5
| | | | find and exists?
* Raises IrreversibleOrderError when using last with an irreversible orderRafael Mendonça França2016-12-291-8/+0
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* Fix Rubocop violations and fix documentation visibilityRafael Mendonça França2016-12-281-98/+98
| | | | | | Some methods were added to public API in 5b14129d8d4ad302b4e11df6bd5c7891b75f393c and they should be not part of the public API.
* Privatize unneededly protected methods in Active RecordAkira Matsuda2016-12-241-12/+10
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* Translate numeric value out of range to the specific exceptionRyuta Kamizono2016-12-061-4/+4
| | | | Raise `ActiveRecord::RangeError` when values that executed are out of range.
* Restore RecordNotFound when *_ids= can't find records by IDDominic Cleal2016-11-241-4/+4
| | | | | | | | | | | | | | | | 9c9fb19 changed the behaviour of the _ids= setters for associations to raise an AssociationTypeMismatch when unknown IDs are given: Class: <ActiveRecord::AssociationTypeMismatch> Message: <"Developer(#43811860) expected, got NilClass(#16732720)"> This restores the original ActiveRecord::RecordNotFound exception with a much clearer error message: Class: <ActiveRecord::RecordNotFound> Message: <"Couldn't find all Developers with 'id': (1, -9999) [WHERE \"contracts\".\"company_id\" = ?] (found 1 results, but was looking for 2)"> Fixes #25719
* Should except `:distinct` rather than `:order` for `exists?`Ryuta Kamizono2016-11-091-1/+1
| | | | | | | | | | | | | Records fetching order is very important for performance if `limit` is presented. Should not except the order in the case. And `exists?` replaces select list to `1 AS one` therefore `:distinct` is useless (`DISTINCT 1 AS one`). And PostgreSQL raises the following error if `:distinct` and `:order` are used in the same time. ``` ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list ```
* initialize errors with name of class and other paramsv.promzelev2016-09-231-2/+2
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* Fix broken heredoc indentation caused by rubocop auto-correctRyuta Kamizono2016-09-031-3/+3
| | | | | | All indentation was normalized by rubocop auto-correct at 80e66cc4d90bf8c15d1a5f6e3152e90147f00772. But heredocs was still kept absolute position. This commit aligns heredocs indentation for consistency.
* Remove unnecessary ordinal methods for collection associationRyuta Kamizono2016-08-181-2/+10
| | | | | Currently `CollectionProxy` inherits `Relation` therefore we can use its own methods rather than delegating to collection association.
* Finder bang method should call non bang methodRyuta Kamizono2016-08-161-16/+16
| | | | Otherwise CollectionProxy's bang methdos cannot respect dirty target.
* Merge pull request #26097 from Dagnan/fix_recordnotfound_args_rebasedRafael França2016-08-161-4/+6
|\ | | | | When calling association.find RecordNotFound is now raised with the s…
| * When calling association.find RecordNotFound is now raised with the same ↵Michel Pigassou2016-08-131-4/+6
| | | | | | | | argument as when we do it in Record.find (primary_key, id and model).
* | Add three new rubocop rulesRafael Mendonça França2016-08-161-1/+1
| | | | | | | | | | | | | | | | Style/SpaceBeforeBlockBraces Style/SpaceInsideBlockBraces Style/SpaceInsideHashLiteralBraces Fix all violations in the repository.
* | Remove `find_nth_with_limit_and_offset` private methodRyuta Kamizono2016-08-151-34/+13
|/ | | | | | `find_nth` is protected method, therefore `offset` has not been passed anywhere. `find_nth_with_limit_and_offset` is unnecessary anymore because `offset` has not been passed.
* revises most Lint/EndAlignment offensesXavier Noria2016-08-071-7/+7
| | | | Some case expressions remain, need to think about those ones.
* normalizes indentation and whitespace across the projectXavier Noria2016-08-061-168/+168
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* applies new string literal convention in activerecord/libXavier Noria2016-08-061-4/+4
| | | | | The current code base is not uniform. After some discussion, we have chosen to go with double quotes by default.
* `FinderMethods` uses `records` (`load_target`) when `loaded?` is trueRyuta Kamizono2016-07-281-4/+4
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* Merge pull request #25271 from kamipo/prevent_range_error_for_existsSean Griffin2016-06-151-1/+3
|\ | | | | Prevent `RangeError` for `FinderMethods#exists?`
| * Prevent `RangeError` for `FinderMethods#exists?`Ryuta Kamizono2016-06-161-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | `FinderMethods#exists?` should return a boolean rather than raising an exception. `UniquenessValidator#build_relation` catches a `RangeError` because it includes type casting due to a string value truncation. But a string value truncation was removed at #23523 then type casting in `build_relation` is no longer necessary. aa06231 removes type casting in `build_relation` then a `RangeError` moves to `relation.exists?`. This change will remove the catching a `RangeError`.
* | Fix `calculate` with a string value in `from` and eager loadingRyuta Kamizono2016-06-131-9/+1
|/ | | | | | | | | | `construct_relation_for_association_calculations` pass a string value to `construct_join_dependency` when setting a string value in `from`. It should not pass a string value, but always `joins_values`. Related #14834, #19452. Fixes #24193.
* Exists shouldn't error when used with `includes`Sean Griffin2016-05-301-3/+3
| | | | | | | | | | | | | | | | Currently `exists?` does some hackery where it assumes that we can join onto anything that we passed to `eager_load` or `includes`, which doesn't work if we are joining onto a polymorphic association. Actually figuring out if we want to include something would require knowledge deep within the join dependency module, which is hard to pull up. The simplest solution is just to pass a flag down that says we're not actually going to try to eager load any of the data. It's not the solution I'd like, but that code really needs to be untangled before we can do much with it. This is another attempt at 6d5b1fd which should address the concerns that led to reverting it in 4ecabed.
* Pass over all Rails 5 warnings, to make sure:Vipul A M2016-04-121-2/+2
| | | | | | | | | | - we are ending sentences properly - fixing of space issues - fixed continuity issues in some sentences. Reverts https://github.com/rails/rails/commit/8fc97d198ef31c1d7a4b9b849b96fc08a667fb02 . This change reverts making sure we add '.' at end of deprecation sentences. This is to keep sentences within Rails itself consistent and with a '.' at the end.
* [ci skip] Fix the FinderMethods#find documentakihiro172016-03-141-2/+2
| | | | We should use #find_or_initialize_by and #find_or_create_by because #first_or_initialize and #first_or_create methods are not the public API
* default second_to_last to primary_key index if no order suppliedBrian Christian2016-02-271-1/+7
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* refactor AR second_to_last to use array methodsBrian Christian2016-02-271-1/+6
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* AR #second_to_last tests and finder methodsBrian Christian2016-02-271-4/+12
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* Mutating the result of Relation#to_a should not affect the relationMatthew Draper2016-02-211-3/+3
| | | | | | Clarifying this separation and enforcing relation immutability is the culmination of the previous efforts to remove the mutator method delegations.
* Remove the method already overridden by private methodMehmet Emin İNAÇ2016-02-141-13/+0
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* Merge pull request #23377 from bogdan/last-with-sqlEileen M. Uchitelle2016-02-131-9/+19
|\ | | | | Fix AR::Relation#last bugs instroduced in 7705fc
| * Make ActiveRecord::Relation#last to reverse SQL orderBogdan Gusiev2016-02-131-9/+19
| | | | | | | | instead of loading the relation into memory
* | Fix grammar `a` to `an` [ci skip]Ryuta Kamizono2016-02-131-1/+1
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* remove warnings from FinderMethodsyuuji.yaginuma2016-02-111-4/+4
| | | | | | | | | | | This removes the following warnings. ``` activerecord/lib/active_record/relation/finder_methods.rb:252: warning: ambiguous first argument; put parentheses or a space even after `-' operator activerecord/lib/active_record/relation/finder_methods.rb:258: warning: ambiguous first argument; put parentheses or a space even after `-' operator activerecord/lib/active_record/relation/finder_methods.rb:268: warning: ambiguous first argument; put parentheses or a space even after `-' operator activerecord/lib/active_record/relation/finder_methods.rb:274: warning: ambiguous first argument; put parentheses or a space even after `-' operator ```
* rename to 'second_to_last' and 'third_to_last'Brian Christian2016-02-101-12/+12
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* allow Array.penultimate and Array.antepenultiate access methodsBrian Christian2016-02-091-0/+32
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* Extract a Relation#arel_attributeMatthew Draper2016-02-041-2/+2
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* Defer Arel attribute lookup to the model classMatthew Draper2016-02-041-2/+2
| | | | | This still isn't as separated as I'd like, but it at least moves most of the burden of alias mapping in one place.
* Revert "Merge pull request #16400 from bogdan/last-with-sql"Sean Griffin2016-02-011-17/+22
| | | | | | | | | | This reverts commit 9f3730a516f30beb0050caea9539f8d6b808e58a, reversing changes made to 2637fb75d82e1c69333855abd58c2470994995d3. There are additional issues with this commit that need to be addressed before this change is ready (see #23377). This is a temporary revert in order for us to have more time to address the issues with that PR, without blocking the release of beta2.
* Reworked ActiveRecord::Relation#last to always use SQLBogdan Gusiev2016-01-281-22/+17
| | | | instead of loading relation
* Consistently warn that passing an offset to `find_nth` is deprecatedBen Woosley2016-01-271-11/+10
| | | | | | | | | | | | @bogdan pointed out that a `loaded?` relation would not warn that the supplied offset would be removed. This fixes that oversight. https://github.com/rails/rails/commit/16a476e4f8f802774ae7c8dca2e59f4e672dc591#commitcomment-15706834 Although this second argument is probably not widely used, and would be ignored anyway in the loaded? case, this could protect callers from gotchas. [Ben Woosley & Victor Kmita]
* Fix `first(limit)` to take advantage of `loaded?` records if availableBen Woosley2015-12-241-5/+20
| | | | | | | | | | | | | | | | | I realized that `first(2)`, etc. was unnecessarily querying for the records when they were already preloaded. This was because `find_nth_with_limit` can not know which `@records` to return because it conflates the `offset` and `index` into a single variable, while the `@records` only needs the `index` itself to select the proper record. Because `find_nth` and `find_nth_with_limit` are public methods, I instead introduced a private method `find_nth_with_limit_and_offset` which is called internally and handles the `loaded?` checking. Once the `offset` argument is removed from `find_nth`, `find_nth_with_limit_and_offset` can be collapsed into `find_nth_with_limit`, with `offset` always equal to `offset_index`.
* Deprecate passing `offset` to `find_nth`Ben Woosley2015-12-241-8/+16
| | | | | | | | All uses of the `offset` are passing `offset_index`. Better to push down the `offset` consideration into `find_nth`. This also works toward enabling `find_nth_with_limit` to take advantage of the `loaded?` state of the relation.
* Merge pull request #22653 from matthewd/find_array_orderedMatthew Draper2015-12-181-0/+17
|\ | | | | | | ActiveRecord::Base#find(array) returning result in the same order as the array passed
| * Implement limit & offset for ourselvesMatthew Draper2015-12-181-6/+19
| | | | | | | | | | | | | | | | | | | | We know the query will return exactly one row for each entry in the `ids` array, so we can do all the limit/offset calculations on that array, in advance. I also split our new ordered-ids behaviour out of the existing `find_some` method: especially with this change, the conditionals were overwhelming the actual logic.
| * using order_values method instead of relying on ActiveRecord::Relation ↵Miguel Grazziotin2015-06-191-2/+2
| | | | | | | | @values hash
| * WIP: fixing the limit bug and introducing new tests (failing for now) on ↵Miguel Grazziotin2015-06-191-3/+5
| | | | | | | | .find(array) with offset
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