//关联数据删除限制
$msg_[FIELD_NAME] = '下有[FORM_NAME]数据，请删除[FORM_NAME]后再进行删除操作';
if(is_array($id)){
    foreach ($id as $item){
        $data = $model::get($item);
        if($data->school->count()>0){
            return error($data->name.$msg_[FIELD_NAME]);
        }
    }
}else{
    $data = $model::get($id);
    if($data->school->count()>0){
        return error($data->name.$msg_[FIELD_NAME]);
    }
}