/**
* Deletes an existing CourseType model.
* If deletion is successful, the browser will be redirected to the 'index' page.
* @param integer $id
* @return mixed
*/
public function actionDelete($id)
{
try {
// $this->findModel($id)->delete();
$ct = $this->findModel($id);
//$crs = $ct->courses;
//$cls = $ct->clsses;
$crs_count = Course::find()->where(['crs_ct_id' => $id])->count();
$cls_count = Clss::find()->where(['clss_ct_id' => $id])->count();
Yii::$app->session->setFlash('message', "You cannot delete this record!");
if ($crs_count == 0 && $cls_count == 0) {
$ct->delete();
// Yii::$app->session->setFlash('success','The car was successfully deleted');
// foreach (Yii::$app->session->getAllFlashes() as $key => $message) {
echo '<div class="alert alert-success">' . 'The car was successfully deleted' . '</div>';
// }
} else {
//header("HTTP/1.0 400 Relation Restriction");
Yii::$app->session->setFlash('message', "You cannot delete this record!");
}
} catch (CDbException $e) {
if ($e->errorInfo[1] == 1451) {
header("HTTP/1.0 400 Relation Restriction");
echo "Your error message.\n";
} else {
throw $e;
}
// } catch (IntegrityException $e) {
// if($e->getCode()===23000){
//You can have nother error handling
// header("HTTP/1.0 400 Relation Restriction");
// }else{
// throw $e;
//}
}
return $this->redirect(['index']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getClsses()
{
return $this->hasMany(Clss::className(), ['clss_tchr_id' => 'tchr_id']);
}