add compat methods

diff --git a/lib/SQL/Translator/Object/Constraint.pm b/lib/SQL/Translator/Object/Constraint.pm
index ef673ea..c61cb79 100644 (file)
--- a/lib/SQL/Translator/Object/Constraint.pm
+++ b/lib/SQL/Translator/Object/Constraint.pm
@@ -1,13 +1,13 @@
 use MooseX::Declare;
 class SQL::Translator::Object::Constraint {
-    use MooseX::Types::Moose qw(HashRef Str);
+    use MooseX::Types::Moose qw(HashRef Maybe Str);
     use MooseX::AttributeHelpers;
     use SQL::Translator::Types qw(Column);
     extends 'SQL::Translator::Object';
     
     has 'name' => (
         is => 'rw',
-        isa => Str,
+        isa => Maybe[Str],
         required => 1
     );
     
@@ -18,6 +18,7 @@ class SQL::Translator::Object::Constraint {
         provides => {
             exists => 'exists_column',
             keys   => 'column_ids',
+            values => 'get_columns',
             get    => 'get_column',
         },
         curries => {
@@ -36,4 +37,7 @@ class SQL::Translator::Object::Constraint {
         isa => Str,
         required => 1
     );
+
+    method get_fields { return $self->get_columns }
+    method fields { return $self->column_ids }
 }