/**
  * Creates a new model.
  * If creation is successful, the browser will be redirected to the 'view' page.
  */
 public function actionCreate()
 {
     $model = new ProjectField();
     $scheme = get_class(Yii::app()->db->schema);
     if (isset($_POST['ProjectField'])) {
         $model->attributes = $_POST['ProjectField'];
         if ($model->validate()) {
             $sql = 'ALTER TABLE ' . Project::model()->tableName() . ' ADD `' . $model->varname . '` ';
             $sql .= $this->fieldType($model->field_type);
             if ($model->field_type != 'TEXT' && $model->field_type != 'DATE' && $model->field_type != 'BOOL' && $model->field_type != 'BLOB' && $model->field_type != 'BINARY') {
                 $sql .= '(' . $model->field_size . ')';
             }
             $sql .= ' NOT NULL ';
             if ($model->field_type != 'TEXT' && $model->field_type != 'LIST' && $model->field_type != 'BLOB' || $scheme != 'CMysqlSchema') {
                 if ($model->default) {
                     $sql .= " DEFAULT '" . $model->default . "'";
                 } else {
                     $sql .= $model->field_type == 'TEXT' || $model->field_type == 'VARCHAR' || $model->field_type == 'BLOB' || $model->field_type == 'BINARY' ? " DEFAULT ''" : ($model->field_type == 'DATE' ? " DEFAULT '0000-00-00'" : " DEFAULT 0");
                 }
             }
             $model->dbConnection->createCommand($sql)->execute();
             $model->save();
             $this->redirect(array('view', 'id' => $model->id));
         }
     }
     $this->registerScript();
     $this->render('create', array('model' => $model));
 }