/**
* Finds the Banner model based on its primary key value.
* If the model is not found, a 404 HTTP exception will be thrown.
* @param integer $id
* @return Banner the loaded model
* @throws NotFoundHttpException if the model cannot be found
*/
protected function findModel($id)
{
if (($model = Banner::findOne($id)) !== null) {
return $model;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
public static function find()
{
return parent::find()->where([Banner::tableName() . '.isdel' => 0]);
}
public function updatePosition($position)
{
$models = Banner::find()->where("id != :id", ["id" => $this->id])->orderBy("position")->all();
$pos = 0;
$mis = false;
$low = false;
$up = false;
$mod = "-";
$m = false;
foreach ($models as $model) {
$mis = $mis === false && $model->position != $pos ? $pos : $mis;
$pos = $pos + 1;
$m = $model;
}
$alter = $mis === false && $position > $pos ? false : true;
if ($m) {
$mis = $mis === false ? $m->position + 1 : $mis;
}
$mod = $position > $mis ? "-" : "+";
$low = $position > $mis ? $mis : $position;
$up = $position < $mis ? $mis : $position + 1;
$res = true;
if ($low !== false && $up !== false && $alter === true) {
$res = $this->db->createCommand("UPDATE " . Banner::tableName() . " \n\t\t\t\t\t\tSET position = (position" . $mod . "1) \n\t\t\t\t\t\tWHERE position >= :low AND position < :up AND id != :id")->bindValues(["low" => $low, "up" => $up, "id" => $this->id])->execute();
}
return $res;
}
