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-rwxr-xr-xactiverecord/lib/active_record/associations.rb5
-rw-r--r--activerecord/lib/active_record/associations/has_many_association.rb14
2 files changed, 13 insertions, 6 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]
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb
index 0f79e4ccef..01374bd55a 100644
--- a/activerecord/lib/active_record/associations/has_many_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_association.rb
@@ -113,11 +113,15 @@ module ActiveRecord
end
def delete_records(records)
- ids = quoted_record_ids(records)
- @association_class.update_all(
- "#{@association_class_primary_key_name} = NULL",
- "#{@association_class_primary_key_name} = #{@owner.quoted_id} AND #{@association_class.primary_key} IN (#{ids})"
- )
+ if @options[:dependent]
+ records.each { |r| r.destroy }
+ else
+ ids = quoted_record_ids(records)
+ @association_class.update_all(
+ "#{@association_class_primary_key_name} = NULL",
+ "#{@association_class_primary_key_name} = #{@owner.quoted_id} AND #{@association_class.primary_key} IN (#{ids})"
+ )
+ end
end
def target_obsolete?