rails/activerecord/CHANGELOG.md
2013-05-11 23:51:27 -03:00

3.6 KiB

  • Fix pending migrations error when loading schema and ActiveRecord::Base.table_name_prefix is not blank.

    Call assume_migrated_upto_version on connection to prevent it from first being picked up in method_missing.

    In the base class, Migration, method_missing expects the argument to be a table name, and calls proper_table_name on the arguments before sending to connection. If table_name_prefix or table_name_suffix is used, the schema version changes to prefix_version_suffix, breaking rake test:prepare.

    Fixes #10411.

    Kyle Stevens

  • Method read_attribute_before_type_cast should accept input as symbol.

    Neeraj Singh

  • Confirm a record has not already been destroyed before decrementing counter cache.

    Ben Tucker

  • Fixed a bug in ActiveRecord#sanitize_sql_hash_for_conditions in which self.class is an argument to PredicateBuilder#build_from_hash causing PredicateBuilder to call non-existent method Class#reflect_on_association.

    Zach Ohlgren

  • While removing index if column option is missing then raise IrreversibleMigration exception.

    Following code should raise IrreversibleMigration. But the code was failing since options is an array and not a hash.

    def change
      change_table :users do |t|
        t.remove_index [:name, :email]
      end
    end
    

    Fix was to check if the options is a Hash before operating on it.

    Fixes #10419.

    Neeraj Singh

  • Do not overwrite manually built records during one-to-one nested attribute assignment

    For one-to-one nested associations, if you build the new (in-memory) child object yourself before assignment, then the NestedAttributes module will not overwrite it, e.g.:

    class Member < ActiveRecord::Base
      has_one :avatar
      accepts_nested_attributes_for :avatar
    
      def avatar
        super || build_avatar(width: 200)
      end
    end
    
    member = Member.new
    member.avatar_attributes = {icon: 'sad'}
    member.avatar.width # => 200
    

    Olek Janiszewski

  • fixes bug introduced by #3329. Now, when autosaving associations, deletions happen before inserts and saves. This prevents a 'duplicate unique value' database error that would occur if a record being created had the same value on a unique indexed field as that of a record being destroyed.

    Johnny Holton

  • Handle aliased attributes in ActiveRecord::Relation.

    When using symbol keys, ActiveRecord will now translate aliased attribute names to the actual column name used in the database:

    With the model

    class Topic
      alias_attribute :heading, :title
    end
    

    The call

    Topic.where(heading: 'The First Topic')
    

    should yield the same result as

    Topic.where(title: 'The First Topic')
    

    This also applies to ActiveRecord::Relation::Calculations calls such as Model.sum(:aliased) and Model.pluck(:aliased).

    This will not work with SQL fragment strings like Model.sum('DISTINCT aliased').

    Godfrey Chan

  • Mute psql output when running rake db:schema:load.

    Godfrey Chan

  • Trigger a save on has_one association=(associate) when the associate contents have changed.

    Fix #8856.

    Chris Thompson

  • Abort a rake task when missing db/structure.sql like db:schema:load task.

    kennyj

  • rake:db:test:prepare falls back to original environment after execution.

    Slava Markevich

Please check 4-0-stable for previous changes.