diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/has_many_association.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations/has_many_association.rb | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 41c6ca92cc..74864d271f 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -7,6 +7,28 @@ module ActiveRecord # is provided by its child HasManyThroughAssociation. class HasManyAssociation < CollectionAssociation #:nodoc: + def handle_dependency + case options[:dependent] + when :restrict, :restrict_with_exception + raise ActiveRecord::DeleteRestrictionError.new(reflection.name) unless empty? + + when :restrict_with_error + unless empty? + record = klass.human_attribute_name(reflection.name).downcase + owner.errors.add(:base, :"restrict_dependent_destroy.many", record: record) + false + end + + else + if options[:dependent] == :destroy + # No point in executing the counter update since we're going to destroy the parent anyway + load_target.each(&:mark_for_destruction) + end + + delete_all + end + end + def insert_record(record, validate = true, raise = false) set_owner_attributes(record) @@ -33,7 +55,13 @@ module ActiveRecord # If the collection is empty the target is set to an empty array and # the loaded flag is set to true as well. def count_records - count = has_cached_counter? ? owner[cached_counter_attribute_name] : scoped.count + count = if has_cached_counter? + owner.send(:read_attribute, cached_counter_attribute_name) + elsif options[:counter_sql] || options[:finder_sql] + reflection.klass.count_by_sql(custom_counter_sql) + else + scope.count + end # If there's nothing in the database and @target has no new records # we are certain the current target is an empty array. This is a @@ -84,10 +112,10 @@ module ActiveRecord update_counter(-records.length) unless inverse_updates_counter_cache? else if records == :all - scope = scoped + scope = self.scope else keys = records.map { |r| r[reflection.association_primary_key] } - scope = scoped.where(reflection.association_primary_key => keys) + scope = self.scope.where(reflection.association_primary_key => keys) end if method == :delete_all |