问Laravel whereNotExists关系EN相信大家使用 Laravel 开发应用的时候都会有评论模块吧，而且我们通常将该...
底层执行的 SQL 语句一个 NOT EXISTS 查询: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select * from `users` where not exists ( select * from `posts` where `users`.`id` = `posts`.`user_id` and `posts`.`deleted_at` is null ) and `email_verified_at` is not null 如果想要...
returnModel::query() ->whereNotExists(function($query){ // $query is a Query\Builder }) ->whereHas('relation',function($query){ // $query is an Eloquent\Builder }) ->with('relation',function($query){ // $query is an Eloquent\Relation }); 此功能...
本书介绍了如何使用 Laravel 4 设计模式开发不同的应用程序并解决重复出现的问题。它将引导您了解广泛使用的设计模式——生成器(管理器)模式、工厂模式、存储库模式和策略模式,并将使您能够在使用 Laravel 开发各种应用程序时使用这些模式。本书将帮助您找到稳定和可接受的解决方案,从而提高应用程序的质量。 在本书的...
Orm::where([])->whereNotExists(function($query){ $query->select(\DB::raw(1))->from('has_table')->whereRaw('orm.id = has_table.id'); })->first();
laravel whereDoesntHave select * from `feeds` where not exists (select * from `black_lists` where `feeds`.`user_id` = `black_lists`.`target_id` and `user_id` = ?) FeedModel->whereDoesntHave('blacks',function($query)use($user) {$query->where('user_id',$user);...
This goal was realized with the release of Laravel Sanctum, which should be considered the preferred and recommended authentication package for applications that will be offering a first-party web UI in addition to an API, or will be powered by a single-page application (SPA) that exists ...
#① 创建数据库,并使用USE选择数据库 CREATE DATABASE IF NOT EXISTS `laravel` DEFAULT CHARSET utf8mb4; USE `laravel`; # 作者表 CREATE TABLE `author` ( `id` INT UNSIGNED PRIMARY KEY AUTO_INCREMENT, `author_name` VARCHAR(20) NOT NULL COMMENT '作者名称' ) DEFAULT CHARSET=utf8mb4; # 文章...
我有很多迁移要迁移,但我的数据库现在是空的。当我运行时php artisan migrate出现此错误:PDOException::("SQLSTATE[42S02]: Base table or view not found: 1146 Table 'shop.permissions' doesn't exist")这是我的权限迁移:Schema::create('permissions', function (Blueprint $table) { $table->id(); $...
1if (Auth::attempt(['email' => $email, 'password' => $password, 'active' => 1])) { 2 // The user is active, not suspended, and exists. 3}In these examples, email is not a required option, it is merely used as an example. You should use whatever column name corresponds to ...