+sub _before_save_invalidate_requirement_spec_version {
+ my ($self, %params) = @_;
+
+
+ return 1 if !$self->requirement_spec_id;
+
+ my %changed_columns = map { $_ => 1 } (Rose::DB::Object::Helpers::dirty_columns($self));
+
+ $self->requirement_spec->invalidate_version
+ if !Rose::DB::Object::Util::is_in_db($self) || any { $changed_columns{$_} } qw(title text position output_position);
+
+ return 1;
+}
+
+sub _before_delete_invalidate_requirement_spec_version {
+ my ($self, %params) = @_;
+
+ $self->requirement_spec->invalidate_version if $self->requirement_spec_id;
+
+ return 1;
+}
+