static function majorOptions()
{
$criteria = new CDbCriteria();
$criteria->select = 'major_id, major_name';
$model = Major::model()->findAll();
return CHtml::ListData($model, 'major_id', 'major_name');
}
public function actionGetClasses()
{
if (!isset($_POST['major_id'])) {
return;
}
$major_id = $_POST['major_id'];
$classes = Major::model()->findByPk($major_id)->classes;
$classes = CHtml::listData($classes, 'class_id', 'class_name');
$htmlData = CHtml::tag('option', array('selected' => 'selected', 'value' => ''), '请选择班级');
foreach ($classes as $value => $key) {
$htmlData .= Chtml::tag('option', array('value' => $value), Chtml::encode($key));
}
echo json_encode(array('htmlData' => $htmlData));
}
/**
* Returns the data model based on the primary key given in the GET variable.
* If the data model is not found, an HTTP exception will be raised.
* @param integer $id the ID of the model to be loaded
* @return Major the loaded model
* @throws CHttpException
*/
public function loadModel($id)
{
$model = Major::model()->findByPk($id);
if ($model === null) {
throw new CHttpException(404, 'The requested page does not exist.');
}
return $model;
}
