diff options
Diffstat (limited to 'activerecord/lib/active_record/associations.rb')
| -rwxr-xr-x | activerecord/lib/active_record/associations.rb | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index f9f5ec98a6..5bdc6247ff 100755 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -153,7 +153,8 @@ module ActiveRecord # * <tt>collection(force_reload = false)</tt> - returns an array of all the associated objects. # An empty array is returned if none are found. # * <tt>collection<<(object, ...)</tt> - adds one or more objects to the collection by setting their foreign keys to the collection's primary key. - # * <tt>collection.delete(object, ...)</tt> - removes one or more objects from the collection by setting their foreign keys to NULL. This does not destroy the objects. + # * <tt>collection.delete(object, ...)</tt> - removes one or more objects from the collection by setting their foreign keys to NULL. + # This will also destroy the objects if they're declared as belongs_to and dependent on this model. # * <tt>collection.clear</tt> - removes every object from the collection. This does not destroy the objects. # * <tt>collection.empty?</tt> - returns true if there are no associated objects. # * <tt>collection.size</tt> - returns the number of associated objects. @@ -219,6 +220,8 @@ module ActiveRecord if options[:dependent] and options[:exclusively_dependent] raise ArgumentError, ':dependent and :exclusively_dependent are mutually exclusive options. You may specify one or the other.' # ' ruby-mode + # See HasManyAssociation#delete_records. Dependent associations + # delete children, otherwise foreign key is set to NULL. elsif options[:dependent] module_eval "before_destroy '#{association_name}.each { |o| o.destroy }'" elsif options[:exclusively_dependent] |