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* Revert "Merge pull request #13344 from ccutrer/fix-from-default-select"Rafael Mendonça França2014-02-171-2/+0
| | | | | | | | | | | | | | | | This reverts commit 3ea840355409dc205a9e0d027fc09f1452636969, reversing changes made to e4cde5d58cbb09d1843796f96ba86225ff94fe05. Conflicts: activerecord/CHANGELOG.md activerecord/lib/active_record/relation/query_methods.rb Reason: using `from` without `select` should not change the select list to SELECT * because it can lead different query results. If it is needed to change the table to a subquery or a view you can pass a table alias in the `from` call or use `select('subquery.*')`. Fixes #14049.
* No need to use symbolsRafael Mendonça França2014-02-161-3/+3
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* guarantee a list in the alias tracker so we can remove a conditionalAaron Patterson2014-02-141-1/+9
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* Return sized enumerator from Batches#find_eachMarc-Andre Lafortune2014-02-051-1/+3
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* Return sized enumerator from Batches#find_in_batchesMarc-Andre Lafortune2014-02-051-4/+9
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* Make arel methods private APIRafael Mendonça França2014-02-011-4/+3
| | | | | | Since its conception arel was made to be private API of Active Record. If users want to use arel features directly we should provide a way using the Active Record API without exposing the arel implementation.
* Let `unscope` ignore non Arel scope.where_valuesWashington Luiz2014-01-301-2/+0
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* Merge pull request #13878 from marcandre/leave_my_options_aloneRafael Mendonça França2014-01-301-2/+2
|\ | | | | find_in_batches should not mutate its argument
| * find_in_batches should not mutate its argumentMarc-Andre Lafortune2014-01-291-2/+2
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* | docs, `references` is only used with `includes`. Closes #13727.Yves Senn2014-01-301-9/+14
|/ | | | | | | There is no gain in `referencing` tables that are not used for preloading. Furthermore it will break if polymorphic associations are invloved. This is because `references_eager_loaded_tables?` uses all `reference_values` to decide wether to `eager_load` or `preload`.
* Merge pull request #13201 from marcandre/find_in_batch_enumeratorRafael Mendonça França2014-01-291-0/+9
|\ | | | | | | | | | | | | | | `find_in_batches` now returns an `Enumerator` Conflicts: activerecord/CHANGELOG.md activerecord/lib/active_record/relation/batches.rb
| * `find_in_batches` now returns an `Enumerator` when called without a block, ↵Marc-Andre Lafortune2013-12-061-0/+9
| | | | | | | | | | | | so that it can be chained with other `Enumerable` methods.
* | Mention find_each in find_in_batches doc [ci skip]Marc-Andre Lafortune2014-01-291-0/+2
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* | Handle aliased attributes in AR::Relation#select, #order, etc.Tsutomu Kuroda2014-01-291-1/+5
| | | | | | | | | | | | | | With this we can write `Model#select(:aliased)`, `Model#order(:aliased)`, `Model#reoder(aliased: :desc)`, etc. Supplementary work to 54122067acaad39b277a5363c6d11d6804c7bf6b.
* | Display value when raising due to unscope() issuesWashington Luiz2014-01-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Hopefully make it easier to debug errors. e.g Before: RuntimeError: unscope(where: "deleted_at") failed: unscoping String is unimplemented. After: RuntimeError: unscope(where: "deleted_at") failed: unscoping String "'t'='t'" is unimplemented.
* | Fix `ActiveRecord::RecordNotFound` error message with custom primary keyKuldeep Aggarwal2014-01-251-2/+2
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* | Ensure AR #second, #third, etc. finders work through associationsJason Meller2014-01-211-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit fixes two regressions introduced in cafe31a078 where newly created finder methods #second, #third, #forth, and #fifth caused a NoMethodError error on reload associations and where we were pulling the wrong element out of cached associations. Examples: some_book.authors.reload.second # Before # => NoMethodError: undefined method 'first' for nil:NilClass # After # => #<Author id: 2, name: "Sally Second", ...> some_book.first.authors.first some_book.first.authors.second # Before # => #<Author id: 1, name: "Freddy First", ...> # => #<Author id: 1, name: "Freddy First", ...> # After # => #<Author id: 1, name: "Freddy First", ...> # => #<Author id: 2, name: "Sally Second", ...> Fixes #13783.
* | prepend table name for `Relation#select` columns.Yves Senn2014-01-211-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a bug where `select(:id)` combined with `joins()` raised: ``` ActiveRecord::StatementInvalid: SQLite3::SQLException: ambiguous column name: id: SELECT id, authors.author_address_id FROM "posts" INNER JOIN "authors" ON "authors"."id" = "posts"."author_id" ORDER BY posts.id LIMIT 3 ``` The `select_values` are still String and Symbols because other parts (mainly calculations.rb) rely on that fact. /cc @tenderlove
* | Fail early with "Primary key not included in the custom select clause" in ↵Alexander Balashov2014-01-211-5/+2
| | | | | | | | | | find_in_batches Before this patch find_in_batches raises this error only on second iteration. So you will know about the problem only when you get the batch size threshold.
* | Ensure #second acts like #first AR finderJason Meller2014-01-201-7/+87
| | | | | | | | | | | | | | | | | | | | | | | | This commit bring the famous ordinal Array instance methods defined in ActiveSupport into ActiveRecord as fully-fledged finders. These finders ensure a default ascending order of the table's primary key, and utilize the OFFSET SQL verb to locate the user's desired record. If an offset is defined in the query, calling #second adds to the offset to get the actual desired record. Fixes #13743.
* | unscope should remove bind values associated with the whereAaron Patterson2014-01-131-0/+2
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* | reverse_order_value= is not private, so no need to sendAaron Patterson2014-01-131-1/+1
| | | | | | | | It's not public API, but is not private scoped.
* | avoid more dynamic symbolsAaron Patterson2014-01-131-1/+1
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* | no need to to_symAaron Patterson2014-01-131-2/+2
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* | doc, API example on how to use `Model#exists?` with multiple IDs. [ci skip]Yves Senn2014-01-101-0/+1
| | | | | | | | Refs #13658
* | raise `ArgumentError` exception if `Model.where.not` is called with `nil` ↵Kuldeep Aggarwal2013-12-301-0/+2
| | | | | | | | argument
* | fix default select when from is usedCody Cutrer2013-12-191-1/+3
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* | Merge pull request #13340 from akshay-vishnoi/typoGodfrey Chan2013-12-181-5/+4
|\ \ | | | | | | #none documentation updated [ci skip]
| * | #none documentation updated [ci skip]Akshay Vishnoi2013-12-181-5/+4
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* | | Create a blacklist to disallow mutator methods to be delegated to `Array`.Lauro Caetano2013-12-171-11/+14
| | | | | | | | | | | | | | | | | | | | | | | | This change was necessary because the whitelist wouldn't work. It would be painful for users trying to update their applications. This blacklist intent to prevent odd bugs and confusion in code that call mutator methods directely on the `Relation`.
* | | Better support for `where()` conditions that use an association name.Martin Emde2013-12-161-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using the name of an association in `where` previously worked only if the value was a single `ActiveRecrd::Base` object. e.g. Post.where(author: Author.first) Any other values, including `nil`, would cause invalid SQL to be generated. This change supports arguments in the `where` query conditions where the key is a `belongs_to` association name and the value is `nil`, an `Array` of `ActiveRecord::Base` objects, or an `ActiveRecord::Relation` object. # Given the Post model class Post < ActiveRecord::Base belongs_to :author end # nil value finds records where the association is not set Post.where(author: nil) # SELECT "posts".* FROM "posts" WHERE "posts"."author_id" IS NULL # Array values find records where the association foreign key # matches the ids of the passed ActiveRecord models, resulting # in the same query as Post.where(author_id: [1,2]) authors_array = [Author.find(1), Author.find(2)] Post.where(author: authors_array) # ActiveRecord::Relation values find records using the same # query as Post.where(author_id: Author.where(last_name: "Emde")) Post.where(author: Author.where(last_name: "Emde")) Polymorphic `belongs_to` associations will continue to be handled appropriately, with the polymorphic `association_type` field added to the query to match the base class of the value. This feature previously only worked when the value was a single `ActveRecord::Base`. class Post < ActiveRecord::Base belongs_to :author, polymorphic: true end Post.where(author: Author.where(last_name: "Emde")) # Generates a query similar to: Post.where(author_id: Author.where(last_name: "Emde"), author_type: "Author")
* | | Merge pull request #13307 from akshay-vishnoi/typoRafael Mendonça França2013-12-151-2/+2
|\| | | | | | | | Spelling and Grammar check [ci skip]
| * | Spelling and Grammar check [ci skip]Akshay Vishnoi2013-12-161-2/+2
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* | | argument prefix warning removedArun Agrawal2013-12-131-1/+1
| | | | | | | | | | | | * interpreted as a argument prefix
* | | Add a bunch of Relation -> Array delegate methods to the whitelist. This ↵Jeremy Kemper2013-12-121-4/+12
| | | | | | | | | | | | won't last - aim to switch back to a blacklist for mutator methods.
* | | Use `public_send` instead of just use `send`.Lauro Caetano2013-12-121-5/+5
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* | | Use a whitelist to delegate methods to arrayLauro Caetano2013-12-121-18/+6
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* | Mark the arguments needed by activerecord-deprecated_finders with a TODORafael Mendonça França2013-12-111-0/+12
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* | Revert "Merge pull request #12518 from vipulnsward/remove_count_options"Rafael Mendonça França2013-12-111-12/+13
| | | | | | | | | | | | | | It is needed for activerecord-depecated_finders This reverts commit dcff027a5242b20c0c90eb062dddb22ccf51aed9, reversing changes made to 3a2093984ff49d86db1efeff0c7581e788ecfb9f.
* | Fix type cast on group sum with custom expressionPaul Nikitochkin2013-12-101-1/+3
|/ | | | | | | | For PG adapters with custom expression and grouped result of aggregate functions have not found correct column type for it. Extract column type from query result. Closes: #13230
* Fix offset with last.Lauro Caetano2013-12-031-1/+1
| | | | Closes #7441
* Merge remote-tracking branch 'docrails/master'Xavier Noria2013-11-241-4/+4
|\ | | | | | | | | | | Conflicts: activesupport/lib/active_support/core_ext/hash/deep_merge.rb activesupport/lib/active_support/core_ext/hash/keys.rb
| * Change syntax format for example returned valuesPrem Sichanugrist2013-11-111-4/+4
| | | | | | | | | | | | | | | | | | According to our guideline, we leave 1 space between `#` and `=>`, so we want `# =>` instead of `#=>`. Thanks to @fxn for the suggestion. [ci skip]
* | Fix ActiveRecord::Relation#unscopeJon Leighton2013-11-201-5/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm pretty confused about the addition of this method. The documentation says that it was intended to allow the removal of values from the default scope (in contrast to #except). However it behaves exactly the same as except: https://gist.github.com/jonleighton/7537008 (other than having a slightly enhanced syntax). The removal of the default scope is allowed by 94924dc32baf78f13e289172534c2e71c9c8cade, which was not a change we could make until 4.1 due to the need to deprecate things. However after that change #unscope still gives us nothing that #except doesn't already give us. However there *is* a desire to be able to unscope stuff in a way that persists across merges, which would allow associations to be defined which unscope stuff from the default scope of the associated model. E.g. has_many :comments, -> { unscope where: :trashed } So that's what this change implements. I've also corrected the documentation. I removed the guide references to #except as I think unscope really supercedes #except now. While we're here, there's also a potential desire to be able to write this: has_many :comments, -> { unscoped } However, it doesn't make sense and would not be straightforward to implement. While with #unscope we're specifying exactly what we want to be removed from the relation, with "unscoped" we're just saying that we want it to not have some things which were added earlier on by the default scope. However in the case of an association, we surely don't want *all* conditions to be removed, otherwise the above would just become "SELECT * FROM comments" with no foreign key constraint. To make the above work, we'd have to somehow tag the relation values which get added when evaluating the default scope in order to differentiate them from other relation values. Which is way too much complexity and therefore not worth it when most use cases can be satisfied with unscope. Closes #10643, #11061.
* | use arel nodes to represent non-string `order_values`.Yves Senn2013-11-191-19/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a bug when merging relations of different classes. ``` Given: Post.joins(:author).merge(Author.order(name: :desc)).to_sql Before: SELECT "posts".* FROM "posts" INNER JOIN "authors" ON "authors"."id" = "posts"."author_id" ORDER BY "posts"."name" DESC After: SELECT "posts".* FROM "posts" INNER JOIN "authors" ON "authors"."id" = "posts"."author_id" ORDER BY "authors"."name" DESC ```
* | document id prefixed String usage of `.find`. refs #12891 [ci skip]Yves Senn2013-11-151-5/+6
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* Added ActiveRecord::QueryMethods#rewhere which will overwrite an existing, ↵David Heinemeier Hansson2013-11-021-0/+12
| | | | named where condition.
* unscope now works on default_scope after ↵Rafael Mendonça França2013-11-021-3/+0
| | | | 94924dc32baf78f13e289172534c2e71c9c8cade
* Merge branch 'master' into joindepAaron Patterson2013-10-212-1/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master: (23 commits) Escape the parentheses in the default function regexp Update docs on Tilt::Template in Asset Pipeline guide Fix loading a sql structure file on postgres when the file's path has whitespace in it remove trailing whitespace added with b057765 [ci skip]. Allow unscope to work with `where.not` Raise an exception when model without primary key calls .find_with_ids Process sub-query relation's binding values Instrument the generation of Action Mailer messages Remove extra variable creation and merge. In Relation#empty? use #exists? instead of #count. [ci skip] avoid deprecation warning in sample code Convert Fixnum into String the port number in MySQL Fix some indentation on autosave association Make define_non_cyclic_method simpler Add Sass gobbling info to asset pipeline docs Ensure the state is clean after one failure Fix typo in form_helper.rb add a new local variable to track if digests are being stored, to ensure the cleanup works correctly [ci skip] Fix number of methods added by association. update digestor code based on review ...
| * Merge pull request #12588 from jetthoughts/12586_subquery_with_unprepared_sqlRafael Mendonça França2013-10-211-0/+7
| |\ | | | | | | | | | | | | | | | | | | Inline bind values for sub-queries generated for Relation in where Conflicts: activerecord/CHANGELOG.md
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