X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FInformix.pm;h=8f230772e492b77f96bf8210d8e7d87626b638dc;hb=b9ca4ff1e045a7863033012e98dc83b5dc95e26e;hp=314f4c1ddf031979c1d05129277b550235c61143;hpb=b0a4cf8eb18957ad8076d2b3d68bcdd787aedd18;p=dbsrgits%2FDBIx-Class-Historic.git

diff --git a/lib/DBIx/Class/Storage/DBI/Informix.pm b/lib/DBIx/Class/Storage/DBI/Informix.pm
index 314f4c1..8f23077 100644
--- a/lib/DBIx/Class/Storage/DBI/Informix.pm
+++ b/lib/DBIx/Class/Storage/DBI/Informix.pm
@@ -3,9 +3,11 @@ use strict;
 use warnings;
 
 use base qw/DBIx::Class::Storage::DBI/;
-
 use mro 'c3';
 
+use Scope::Guard ();
+use Context::Preserve ();
+
 __PACKAGE__->mk_group_accessors('simple' => '__last_insert_id');
 
 =head1 NAME
@@ -59,6 +61,21 @@ sub _svp_rollback {
     $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name")
 }
 
+sub with_deferred_fk_checks {
+  my ($self, $sub) = @_;
+
+  my $txn_scope_guard = $self->txn_scope_guard;
+
+  $self->_do_query('SET CONSTRAINTS ALL DEFERRED');
+
+  my $sg = Scope::Guard->new(sub {
+    $self->_do_query('SET CONSTRAINTS ALL IMMEDIATE');
+  });
+
+  return Context::Preserve::preserve_context(sub { $sub->() },
+    after => sub { $txn_scope_guard->commit });
+}
+
 =head2 connect_call_datetime_setup
 
 Used as: