object updates

fix bug where you try to select an object by an old unique field after changing the field value
use "json" as default json field in database vs. data
update version to 1.0.3

orm/Object.php

@@ -341,6 +341,9 @@ protected static function _getMultiple(array $ids)
      */
     protected static function _getSingle($column, $value)
     {
+        $initial_column = $column;
+        $initial_value = $value;
+
         $class = get_called_class();
         $definition = self::getDefinition($class);
 
@@ -381,6 +384,11 @@ protected static function _getSingle($column, $value)
             return null;
         }
 
+        // fix bug where old items are not removed from cache if the value of the column changes
+        if ($object->$initial_column != $initial_value) {
+            return null;
+        }
+
         return $object;
     }
 
@@ -417,7 +425,7 @@ public function json($db_field, $json_key = self::JSON_GET, $value = self::JSON_
         if (!$this->_propertyExists($original_field)) {
             $value = $json_key;
             $json_key = $db_field;
-            $db_field = 'data';
+            $db_field = 'json';
         }
 
         if (!$this->_propertyExists($db_field) || ($original_field != $db_field && $original_value !== self::JSON_GET)) {

orm/_manifest.php

@@ -10,7 +10,7 @@
  */
 class Orm extends Manifest
 {
-    const VERSION = "1.0.2";
+    const VERSION = "1.0.3";
     protected $_dependencies = array('Database', 'Cache');
     protected $_instructions = "Check out http://sonicframework.com/tutorial/orm for help getting started";
 }