X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FDeploymentHandler%2FVersionHandler%2FDatabaseToSchemaVersions.pm;fp=lib%2FDBIx%2FClass%2FDeploymentHandler%2FVersionHandler%2FDatabaseToSchemaVersions.pm;h=2a2e5fcbf061ccb15a27e4753c868791c71a716e;hb=f344dd911ffeda3bc0b3bef6f275d27a2c31e8f9;hp=7be88f4cc68179a97794395dd2961295e6a6960d;hpb=7d2a697450860554093a1021d3fe4405bac6328e;p=dbsrgits%2FDBIx-Class-DeploymentHandler.git

diff --git a/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm b/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm
index 7be88f4..2a2e5fc 100644
--- a/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm
+++ b/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm
@@ -41,6 +41,17 @@ sub next_version_set {
   return [$self->database_version, $self->to_version];
 }
 
+sub previous_version_set {
+  my $self = shift;
+  return undef
+    if $self->once;
+
+  $self->once(!$self->once);
+  return undef
+    if $self->database_version eq $self->to_version;
+  return [$self->database_version, $self->to_version];
+}
+
 
 __PACKAGE__->meta->make_immutable;