Laravel whereNotHas 实现 3 3 0 分享 / 15 / 0 / 创建于 5年前 Orm::where([])->whereNotExists(function($query){ $query->select(\DB::raw(1))->from('has_table')->whereRaw('orm.id = has_table.id'); })->first();举报 韩众 39 声望
以及文本的字符个数。用空格隔开。接下来一行是源文本,其中有N个字符。都是英文字符,大小写敏感。然后...
$users = User::has('posts', '>', 1)->get(); 底层执行的 SQL 查询语句如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select * from `users` where ( select count(*) from `posts` where `users`.`id` = `posts`.`user_id` and `posts`.`deleted_at` is null ) > 1 and...
Laravel的关联关系查询whereHas在日常开发中给我们带来了极大的便利,但是在主表数据量比较多的时候会有比较严重的性能问题,主要是因为whereHas用了where exists (select * ...)这种方式去查询关联数据。通过这个扩展包提供的whereHasIn方法,可以把语句转化为where id in (select xxx.id ...)的形式,从而提高查询性能...
文本中的代码词、数据库表名、文件夹名、文件名、文件扩展名、路径名、虚拟 URL、用户输入和 Twitter 句柄显示如下:"where()方法使用给定参数过滤查询。" 代码块设置如下: $users=DB::table('users')->get();foreach($usersas$user) {var_dump($user->name); ...
= App\Post::whereDoesntHave('comments.author', function (Builder $query) { $query->where('...
Laravel HasMany WhereNotIn Query问题:我正在尝试查询人员类型以查找未关联人员的所有课程。 我有4 张桌子 人 人员类型 课程 People_Courses PeopleType_Courses 我有以下关系 人物模型 public function getPeopleType() { return $this->belongsTo('App\PeopleType','type_id');...
15 return User::where('token', $request->token)->first(); 16 }); 17}Once your custom authentication driver has been defined, you use it as a driver within guards configuration of your auth.php configuration file:1'guards' => [ 2 'api' => [ 3 'driver' => 'custom-token', 4 ]...
When a job throws an exception but the exception threshold has not yet been reached, the job will typically be retried immediately. However, you may specify the number of minutes such a job should be delayed by calling the backoff method when attaching the middleware to the job:...
LARAVEL WHERE HAS IN 环境 PHP >= 7 laravel >= 5.5 安装 composer require dcat/laravel-wherehasin 1. 简介 Laravel的关联关系查询whereHas在日常开发中给我们带来了极大的便利,但是在主表数据量比较多的时候会有比较严重的性能问题,主要是因为whereHas...