Fixed #7028: Editing a participant in the CPD gives CDbException error

application/models/Participants.php

@@ -141,20 +141,30 @@ function insertParticipant($data)
     {
         Yii::app()->db->createCommand()->insert('{{participants}}', $data);
     }
+
+    /**
+     * Returns the primary key of this table
+     *
+     * @access public
+     * @return string
+     */
+    public function primaryKey() {
+        return 'participant_id';
+    }
 
-    /*
+    /**
      * This function updates the data edited in the jqgrid
-     * Parameters : data that is edited
-     * Return Data : None
+     * 
+     * @param aray $data
      */
-
     function updateRow($data)
     {
-        Yii::app()->db->createCommand()
-                  ->update('{{participants}}',
-                           $data,
-                           'participant_id = :participant_id',
-                           array(':participant_id'=>$data['participant_id']));
+        $record = $this->findByPk($data['participant_id']);
+        foreach ($data as $key => $value)
+        {
+            $record->$key = $value;
+        }
+        $record->save();
     }
 
     /*
@@ -230,7 +240,7 @@ function getParticipants($page, $limit,$attid, $order = null, $search = null, $u
         $data = $this->getParticipantsSelectCommand(false, $attid, $search, $userid, $page, $limit, $order);
 
         $allData = $data->queryAll();
-        
+
         return $allData;
     }