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127 lines
3.8 KiB
Markdown
127 lines
3.8 KiB
Markdown
* Also support extentions in PostgreSQL 9.1. This feature has been supported since 9.1.
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*kennyj*
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* Deprecate `ConnectionAdapters::SchemaStatements#distinct`,
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as it is no longer used by internals.
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*Ben Woosley#
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* Fix pending migrations error when loading schema and `ActiveRecord::Base.table_name_prefix`
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is not blank.
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Call `assume_migrated_upto_version` on connection to prevent it from first
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being picked up in `method_missing`.
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In the base class, `Migration`, `method_missing` expects the argument to be a
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table name, and calls `proper_table_name` on the arguments before sending to
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`connection`. If `table_name_prefix` or `table_name_suffix` is used, the schema
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version changes to `prefix_version_suffix`, breaking `rake test:prepare`.
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Fixes #10411.
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*Kyle Stevens*
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* Method `read_attribute_before_type_cast` should accept input as symbol.
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*Neeraj Singh*
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* Confirm a record has not already been destroyed before decrementing counter cache.
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*Ben Tucker*
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* Fixed a bug in `ActiveRecord#sanitize_sql_hash_for_conditions` in which
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`self.class` is an argument to `PredicateBuilder#build_from_hash`
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causing `PredicateBuilder` to call non-existent method
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`Class#reflect_on_association`.
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*Zach Ohlgren*
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* While removing index if column option is missing then raise IrreversibleMigration exception.
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Following code should raise `IrreversibleMigration`. But the code was
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failing since options is an array and not a hash.
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def change
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change_table :users do |t|
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t.remove_index [:name, :email]
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end
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end
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Fix was to check if the options is a Hash before operating on it.
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Fixes #10419.
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*Neeraj Singh*
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* Do not overwrite manually built records during one-to-one nested attribute assignment
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For one-to-one nested associations, if you build the new (in-memory)
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child object yourself before assignment, then the NestedAttributes
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module will not overwrite it, e.g.:
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class Member < ActiveRecord::Base
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has_one :avatar
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accepts_nested_attributes_for :avatar
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def avatar
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super || build_avatar(width: 200)
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end
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end
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member = Member.new
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member.avatar_attributes = {icon: 'sad'}
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member.avatar.width # => 200
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*Olek Janiszewski*
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* fixes bug introduced by #3329. Now, when autosaving associations,
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deletions happen before inserts and saves. This prevents a 'duplicate
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unique value' database error that would occur if a record being created had
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the same value on a unique indexed field as that of a record being destroyed.
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*Johnny Holton*
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* Handle aliased attributes in ActiveRecord::Relation.
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When using symbol keys, ActiveRecord will now translate aliased attribute names to the actual column name used in the database:
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With the model
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class Topic
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alias_attribute :heading, :title
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end
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The call
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Topic.where(heading: 'The First Topic')
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should yield the same result as
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Topic.where(title: 'The First Topic')
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This also applies to ActiveRecord::Relation::Calculations calls such as `Model.sum(:aliased)` and `Model.pluck(:aliased)`.
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This will not work with SQL fragment strings like `Model.sum('DISTINCT aliased')`.
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*Godfrey Chan*
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* Mute `psql` output when running rake db:schema:load.
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*Godfrey Chan*
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* Trigger a save on `has_one association=(associate)` when the associate contents have changed.
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Fix #8856.
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*Chris Thompson*
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* Abort a rake task when missing db/structure.sql like `db:schema:load` task.
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*kennyj*
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* rake:db:test:prepare falls back to original environment after execution.
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*Slava Markevich*
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Please check [4-0-stable](https://github.com/rails/rails/blob/4-0-stable/activerecord/CHANGELOG.md) for previous changes.
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