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* Update upsert_all documentation [ci skip]Sharang Dashputre2019-03-091-3/+2
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* Merge pull request #35527 from tight/improve_doc_of_automatic_inverse_ofRyuta Kamizono2019-03-091-2/+3
|\ | | | | | | | | Improve doc of automatic inverse_of detection [ci skip]
| * Improve doc of automatic inverse_of detectionFrançois D2019-03-081-2/+3
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* | Merge pull request #35531 from boblail/issue-35519Ryuta Kamizono2019-03-091-3/+7
|\ \ | | | | | | | | | | | | Update documentation on upsert_all so that it is correct for Postgres [ci skip]
| * | Update documentation on upsert_all so that it is correct for PostgresBob Lail2019-03-081-3/+7
| |/ | | | | | | | | | | | | | | | | | | Details in https://github.com/rails/rails/issues/35519 In short, MySQL and Sqlite3 allow a record to be both inserted _and_ replaced in the same operation. Postgres (and the SQL-2003 rules for MERGE) do not. Postgres's rationale seems to be that the operation would be nondeterministic. I think it's OK for Rails users to have a different experience with this feature depending on their database; but I think you should be able to follow the examples in the docs on any database.
* / Minor documentation fixes related to bulk insert [skip ci]Vishal Telangre2019-03-091-10/+13
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* Merge pull request #35512 from kamipo/delegate_onlyRyuta Kamizono2019-03-071-1/+1
|\ | | | | Delegate `only` query method to relation as with `except`
| * Delegate `only` query method to relation as with `except`Ryuta Kamizono2019-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | I've found the skewness of delegation methods between `except` and `only` in a88b6f2. The `only` method is closely similar with `except` as `SpawnMethods`. https://github.com/rails/rails/blob/e056b9bfb07c4eb3bcc6672d885aadd72bec574f/activerecord/lib/active_record/relation/spawn_methods.rb#L53-L67 It is preferable both behaves the same way.
* | Merge pull request #35503 from samjohn/cannot-grammar-correctionXavier Noria2019-03-074-4/+4
|\ \ | |/ |/| Replace “can not” with “cannot”.
| * Replace “can not” with “cannot”.Samantha John2019-03-064-4/+4
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* | Refactor AR::Querying to extract `QUERYING_METHODS` listRyuta Kamizono2019-03-071-13/+17
| | | | | | | | This makes to ease testing `QUERYING_METHODS`.
* | Fix incorrect identifier quoting [ci skip]Ryuta Kamizono2019-03-071-2/+2
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* | Move all Arel constructions from uniqueness validator into connection adapterRyuta Kamizono2019-03-073-7/+6
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* | [ci skip]Fix typo: constaint -> constraintwillnet2019-03-071-2/+2
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* Merge pull request #35497 from eileencodes/parse-yaml-without-erb-for-rake-tasksEileen M. Uchitelle2019-03-061-1/+1
|\ | | | | Load YAML for rake tasks without parsing ERB
| * Load YAML for rake tasks without parsing ERBeileencodes2019-03-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change adds a new method that loads the YAML for the database config without parsing the ERB. This may seem odd but bear with me: When we added the ability to have rake tasks for multiple databases we started looping through the configurations to collect the namespaces so we could do `rake db:create:my_second_db`. See #32274. This caused a problem where if you had `Rails.config.max_threads` set in your database.yml it will blow up because the environment that defines `max_threads` isn't loaded during `rake -T`. See #35468. We tried to fix this by adding the ability to just load the YAML and ignore ERB all together but that caused a bug in GitHub's YAML loading where if you used multi-line ERB the YAML was invalid. That led us to reverting some changes in #33748. After trying to resolve this a bunch of ways `@tenderlove` came up with replacing the ERB values so that we don't need to load the environment but we also can load the YAML. This change adds a DummyCompiler for ERB that will replace all the values so we can load the database yaml and create the rake tasks. Nothing else uses this method so it's "safe". DO NOT use this method in your application. Fixes #35468
* | Add some whitespace for readability.Kasper Timm Hansen2019-03-061-0/+2
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* | Handle blank inserts like update_all; raise upfront.Kasper Timm Hansen2019-03-061-6/+4
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* | Allow `remove_foreign_key` with both `to_table` and `options`Ryuta Kamizono2019-03-066-33/+20
| | | | | | | | | | | | | | Foreign keys could be created to the same table. So `remove_foreign_key :from_table, :to_table` is sometimes ambiguous. This allows `remove_foreign_key` to remove the select one on the same table with giving both `to_table` and `options`.
* | [ci skip] Fix typo beacuse -> becauseAbhay Nikam2019-03-061-1/+1
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* | Ensure `clear_cache!` clears the prepared statements cacheRyuta Kamizono2019-03-064-26/+21
| | | | | | | | | | | | | | | | | | | | | | Since #23461, all adapters supports prepared statements, so that clears the prepared statements cache is no longer database specific. Actually, I struggled to identify the cause of random CI failure in #23461, that was missing `@statements.clear` in `clear_cache!`. This extracts `clear_cache!` to ensure the common concerns in the abstract adapter.
* | Add insert_all to ActiveRecord models (#35077)Bob Lail2019-03-057-11/+457
|/ | | | | Adds a method to ActiveRecord allowing records to be inserted in bulk without instantiating ActiveRecord models. This method supports options for handling uniqueness violations by skipping duplicate records or overwriting them in an UPSERT operation. ActiveRecord already supports bulk-update and bulk-destroy actions that execute SQL UPDATE and DELETE commands directly. It also supports bulk-read actions through `pluck`. It makes sense for it also to support bulk-creation.
* Allow `truncate` for SQLite3 adapter and add `rails db:seed:replant` (#34779)Bogdan2019-03-046-0/+64
| | | | | | | | | | | | | * Add `ActiveRecord::Base.connection.truncate` for SQLite3 adapter. SQLite doesn't support `TRUNCATE TABLE`, but SQLite3 adapter can support `ActiveRecord::Base.connection.truncate` by using `DELETE FROM`. `DELETE` without `WHERE` uses "The Truncate Optimization", see https://www.sqlite.org/lang_delete.html. * Add `rails db:seed:replant` that truncates database tables and loads the seeds Closes #34765
* Deprecate mismatched collation comparison for uniquness validatorRyuta Kamizono2019-03-043-2/+16
| | | | | | | | | | | | | | | | | | | | | In MySQL, the default collation is case insensitive. Since the uniqueness validator enforces case sensitive comparison by default, it frequently causes mismatched collation issues (performance, weird behavior, etc) to MySQL users. https://grosser.it/2009/12/11/validates_uniqness_of-mysql-slow/ https://github.com/rails/rails/issues/1399 https://github.com/rails/rails/pull/13465 https://github.com/gitlabhq/gitlabhq/commit/c1dddf8c7d947691729f6d64a8ea768b5c915855 https://github.com/huginn/huginn/pull/1330#discussion_r55152573 I'd like to deprecate the implicit default enforcing since I frequently experienced the problems in code reviews. Note that this change has no effect to sqlite3, postgresql, and oracle-enhanced adapters which are implemented as case sensitive by default, only affect to mysql2 adapter (I can take a work if sqlserver adapter will support Rails 6.0).
* Fixed reselect throwing NoMethodError on ActiveRecord.Abhay Nikam2019-03-031-1/+2
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* Merge pull request #35441 from kamipo/allow_from_with_index_hintRyuta Kamizono2019-03-011-2/+5
|\ | | | | Relax table name detection in `from` to allow any extension like INDEX hint
| * Relax table name detection in `from` to allow any extension like INDEX hintRyuta Kamizono2019-03-011-2/+5
| | | | | | | | | | | | | | | | | | | | #35360 allows table name qualified if `from` has original table name. But that is still too strict. We have a valid use case that `from` with INDEX hint (e.g. `from("comments USE INDEX (PRIMARY)")`). So I've relaxed the table name detection in `from` to allow any extension like INDEX hint. Fixes #35359.
* | Merge pull request #35431 from kamipo/enable_sql_cache_on_findRyuta Kamizono2019-03-011-1/+1
|\ \ | |/ |/| Enable SQL statement cache for `find` on base class as with `find_by`
| * Enable SQL statement cache for `find` on base class as with `find_by`Ryuta Kamizono2019-03-011-1/+1
| | | | | | | | Related and follows d333d85254d27cd572e6ecce8ee850c107a4f340.
* | Merge pull request #33611 from willianveiga/feature/reselect-methodAndrew White2019-03-011-0/+21
|\ \ | |/ |/| Add reselect method
| * Avoid creating an extra relation instanceWillian Gustavo Veiga2018-10-241-2/+9
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| * Merge branch 'master' into feature/reselect-methodWillian Gustavo Veiga2018-10-224-19/+15
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| * \ Merge branch 'master' into feature/reselect-methodWillian Gustavo Veiga2018-10-1714-118/+82
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| * \ \ Merge branch 'master' into feature/reselect-methodWillian Gustavo Veiga2018-10-1127-622/+861
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| * \ \ \ Merge branch 'master' into feature/reselect-methodWillian Gustavo Veiga2018-10-0279-581/+1140
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| * | | | | Add reselect methodWillian Gustavo Veiga2018-08-131-0/+14
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* | | | | | [ci skip] The `find` method coerces the given arguments to integer if the ↵Mehmet Emin INAC2019-02-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | `primary key` is integer
* | | | | | [ci skip] Fix the documentation of ActiveRecord::FinderMethods#findMehmet Emin INAC2019-02-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's mentioned everywhere as `ActiveRecord::RecordNotFound` so to be coherent with the rest of the documentation I've applied it here. Also doc was saying if the parameter is integer it coerces it which is other way around.
* | | | | | Refactor `generated_relation_methods` to remove duplicated code on ↵Ryuta Kamizono2019-02-281-31/+20
| | | | | | | | | | | | | | | | | | | | | | | | `ClassSpecificRelation`
* | | | | | Allow returning nil for `default_scope`Ryuta Kamizono2019-02-281-5/+4
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* | | | | | Fix preload with nested associationsRafael Mendonça França2019-02-261-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the middle association doesn't have any records and the inner association is not an empty scope the owner will be `nil` so we can't try to reset the inverse association.
* | | | | | Add negative scopes for all enum values (#35381)David Heinemeier Hansson2019-02-261-0/+6
| | | | | | | | | | | | | | | | | | Add negative scopes for all enum values
* | | | | | Don't cache `find_by` statements on STI subclassesRyuta Kamizono2019-02-271-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Caching `find_by` statements on STI subclasses is unsafe, since `type IN (?,?,?,?)` part is dynamic, and we don't have SQL statements cache invalidation when a STI subclass is created or removed for now.
* | | | | | fixes different `count` calculation when using `size` manual `select` with ↵jvillarejo2019-02-261-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DISTINCT When using `select` with `'DISTINCT( ... )'` if you use method `size` on a non loaded relation it overrides the column selected by passing `:all` so it returns different value than count. This fixes #35214
* | | | | | Preparing for 6.0.0.beta2 releaseRafael Mendonça França2019-02-251-1/+1
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* | | | | | Merge pull request #35402 from alimi/update-ar-read-regexAaron Patterson2019-02-251-1/+1
|\ \ \ \ \ \ | | | | | | | | | | | | | | Support read queries with leading characters while preventing writes
| * | | | | | Update READ_QUERY regexAli Ibrahim2019-02-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * The READ_QUERY regex would consider reads to be writes if they started with spaces or parens. For example, a UNION query might have parens around each SELECT - (SELECT ...) UNION (SELECT ...). * It will now correctly treat these queries as reads.
* | | | | | | Refactor `type_to_sql` to handle converting `limit` to `size` in itselfRyuta Kamizono2019-02-264-67/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, improving an argument error message for `limit`, extracting around `type_to_sql` code into schema statements, and more exercise tests.
* | | | | | | Fix prepared statements caching to be enabled even when query caching is enabledRyuta Kamizono2019-02-263-13/+20
|/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Related cbcdecd, 2a56b2d. This is a regression caused by cbcdecd. If query caching is enabled, prepared statement handles are never re-used, since we missed that a query is preprocessed when query caching is enabled, but doesn't keep the `preparable` flag. We should care about that case.
* | | | | | Merge pull request #35352 from kamipo/update_all_doesnt_care_optimistic_lockingRyuta Kamizono2019-02-251-10/+15
|\ \ \ \ \ \ | | | | | | | | | | | | | | Ensure `update_all` series doesn't care optimistic locking
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