/**
* Modify the default schema provided by Fieldtype to include a 'sort' field, and integrate that into the primary key.
*
*/
public function getDatabaseSchema(Field $field)
{
$schema = parent::getDatabaseSchema($field);
$schema['sort'] = 'int unsigned NOT NULL';
$schema['keys']['primary'] = 'PRIMARY KEY (pages_id, sort)';
return $schema;
}
