use strict;
use warnings;
+use Scope::Guard ();
+use Context::Preserve ();
=head1 NAME
...
alter session set constraints = immediate
-to defer FK checks.
+to defer foreign key checks.
+
+Constraints must be declared C<DEFERRABLE> for this to work.
=cut
sub with_deferred_fk_checks {
my ($self, $sub) = @_;
+
+ my $txn_scope_guard = $self->txn_scope_guard;
+
$self->_do_query('alter session set constraints = deferred');
- $sub->();
- $self->_do_query('alter session set constraints = immediate');
+
+ my $sg = Scope::Guard->new(sub {
+ $self->_do_query('alter session set constraints = immediate');
+ });
+
+ return Context::Preserve::preserve_context(sub { $sub->() },
+ after => sub { $txn_scope_guard->commit });
}
=head1 AUTHOR