rails--rails/activerecord/test/models/citation.rb

# frozen_string_literal: true

class Citation < ActiveRecord::Base
  belongs_to :book, foreign_key: :book1_id, inverse_of: :citations, touch: true
  belongs_to :reference_of, class_name: "Book", foreign_key: :book2_id
  has_many :citations
end
Use frozen-string-literal in ActiveRecord 2017-07-09 13:41:28 -04:00			`# frozen_string_literal: true`

Fix has_many :through delete with custom foreign keys. Closes #6466. git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8043 5ecf4fe2-1ee6-0310-87b1-e25e094e27de 2007-10-27 14:51:32 -04:00			`class Citation < ActiveRecord::Base`
Fix has_many_inversing with touch: true on a belongs_to association with inverse `has_many_inversing` adds records to a has_many association. It does so with destroyed records, too. So if a child was destroyed with a `touch: true` association on the parent and the parent was not loaded, it tried to load the parent to touch it. While loading the parent it added the child record to the parent's has_many association. The logic doing this always set the child's parent id – even if it was correct/the same already. But since the child is destroyed, it resulted in a `FrozenError`. This commit prevents doing the unnecessary setting of the identical id and therefore fixes this error. Fixes #40943 by not doing an unneeded attribute set. Closes #40969. [Markus Doits + Rafael Mendonça França] 2021-01-07 17:15:24 -05:00			`belongs_to :book, foreign_key: :book1_id, inverse_of: :citations, touch: true`
modernizes hash syntax in activerecord 2016-08-06 13:37:57 -04:00			`belongs_to :reference_of, class_name: "Book", foreign_key: :book2_id`
Eager loading/preloading should be worked regardless of large number of records Since 213796f, bind params are used for IN clause if enabled prepared statements. Unfortunately, most adapter modules have a limitation for # of bind params (mysql2 65535, pg 65535, sqlite3 250000). So if eager loading large number of records at once, that query couldn't be sent to the database. Since eager loading/preloading queries are auto-generated by Active Record itself, so it should be worked regardless of large number of records like as before. Fixes #33702. 2018-09-08 14:30:45 -04:00			`has_many :citations`
Fix has_many :through delete with custom foreign keys. Closes #6466. git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8043 5ecf4fe2-1ee6-0310-87b1-e25e094e27de 2007-10-27 14:51:32 -04:00			`end`