diff options
Diffstat (limited to 'activerecord/lib/active_record/associations.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 1ee52945ea..ab1e7ad269 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1524,6 +1524,7 @@ module ActiveRecord # Returns the associated object. +nil+ is returned if none is found. # [association=(associate)] # Assigns the associate object, extracts the primary key, and sets it as the foreign key. + # No modification or deletion of existing records takes place. # [build_association(attributes = {})] # Returns a new object of the associated type that has been instantiated # with +attributes+ and linked to this object through a foreign key, but has not yet been saved. @@ -1581,7 +1582,7 @@ module ActiveRecord # association will use "taggable_type" as the default <tt>:foreign_type</tt>. # [:primary_key] # Specify the method that returns the primary key of associated object used for the association. - # By default this is id. + # By default this is +id+. # [:dependent] # If set to <tt>:destroy</tt>, the associated object is destroyed when this object is. If set to # <tt>:delete</tt>, the associated object is deleted *without* calling its destroy method. @@ -1761,6 +1762,7 @@ module ActiveRecord # has_and_belongs_to_many :projects, -> { includes(:milestones, :manager) } # has_and_belongs_to_many :categories, ->(post) { # where("default_category = ?", post.default_category) + # } # # === Extensions # |