laravel 软删除和恢复删除用户

ゞ浴缸里的玫瑰 2023-10-06 18:11 125阅读 0赞

#### laravel软删除和恢复删除用户 ####

*  1 模型中指定软删除的标识字段
 *   *  添加代码
     *   *  文件
     *  2 添加路由
     *  3 应用方式
 *  用 Laravel 自带的 Eloquent ORM 来实现软删除
 *   *  生成表结构

## 1 模型中指定软删除的标识字段 ##

### 添加代码 ###

use Illuminate\Database\Eloquent\SoftDeletes;
    
    // 调用定义的trait类 和 继承效果一样
    use SoftDeletes;
    // 软删除标识字段
    protected $dates = ['deleted_at'];

#### 文件 ####

<?php
    
    namespace App;
    
    use Illuminate\Contracts\Auth\MustVerifyEmail;
    use Illuminate\Database\Eloquent\SoftDeletes;
    use Illuminate\Foundation\Auth\User as Authenticatable;
    use Illuminate\Notifications\Notifiable;
    
    class User extends Authenticatable
    {
        
        use Notifiable;
        // 调用定义的trait类 和 继承效果一样
        use SoftDeletes;
        // 软删除标识字段
        protected $dates = ['deleted_at'];
    
        /**
         * The attributes that are mass assignable.
         *
         * @var array
         */
        protected $fillable = [
            'name', 'email', 'password',
        ];
    
        /**
         * The attributes that should be hidden for arrays.
         *
         * @var array
         */
        protected $hidden = [
            'password', 'remember_token',
        ];
    
        /**
         * The attributes that should be cast to native types.
         *
         * @var array
         */
        protected $casts = [
            'email_verified_at' => 'datetime',
        ];
    }

### 2 添加路由 ###

Route::get('softDeletes', 'JuneController@softDeletes');

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaWd1YW5nMTAy_size_16_color_FFFFFF_t_70]

### 3 应用方式 ###

<?php
    
    namespace App\Http\Controllers;
    
    use App\User;
    use Illuminate\Http\Request;
    
    class JuneController extends Controller
    {
        
        public function softDeletes()
        {
        
            $user = User::find(request('id'));
            // 软删除
            // User::find(request('id'))->delete();
    
            // 强制删除 在配置了软删除的时候，真实的删除操作
            // User::find($id) -> forceDelete();
            
            # withTrashed()显示所有的，包括已经进行了软删除的
            // $user = User::withTrashed()->get();
    
            // 还原
            // $user = User::onlyTrashed()->where('id', request('id'))->restore();
            return $user;
        }
    }

## 用 Laravel 自带的 Eloquent ORM 来实现软删除 ##

首先在数据迁移文件中添加删除时间字段

`D:\PHPstudyWWW\dcatAdmin\database\migrations\2022_04_06_084934_create_table_users.php`

<?php
    
    use Illuminate\Support\Facades\Schema;
    use Illuminate\Database\Schema\Blueprint;
    use Illuminate\Database\Migrations\Migration;
    
    class CreateTableUsers extends Migration
    {
        
        # 用户表
        public function up()
        {
        
            Schema::create('users', function (Blueprint $table) {
        
                $table->bigIncrements('id');
                // 角色
                $table->unsignedInteger('role_id')->default(0)->comment('角色ID');
                $table->string('username', 50)->comment("账号");
                $table->string('truename', 20)->default('未知')->comment("账号");
                $table->string('password', 255)->comment('密码');
                $table->timestamp('email_verified_at')->nullable();
                $table->rememberToken();
                $table->string('email', 50)->nullable()->comment('邮箱');
                $table->string('phone', 15)->default('')->comment('手机号码');
                $table->enum('sex', ['先生','女士'])->default('先生')->comment('性别');
                $table->char('last_ip', 15)->default('')->comment('登录IP');
                $table->timestamps();
                // 实现软删除，需要添加delete_at字段，$table->softDeletes();
                $table->softDeletes();
            });
        }
    
        /**
         * Reverse the migrations.
         *
         * @return void
         */
        public function down()
        {
        
            Schema::dropIfExists('users');
        }
    }

### 生成表结构 ###

PS D:\PHPstudyWWW\dcatAdmin> php artisan migrate --path=/database/migrations/2022_04_06_084934_create_table_users.php
    Nothing to migrate.
    PS D:\PHPstudyWWW\dcatAdmin>

laravel 执行 PHP migrate 报 Nothing to migrate.

laravel 会在你的数据库里面生成一个 migrations 表，这个表记录了你的 migrate 操作，当我们进行一些操作，比如手动删除表的时候，migrations 表里面的记录没有删除，手动删除，重新执行 php artisan migrate 命令就可以了。

PS D:\Centos\PHPstudyWWW\dcatAdmin> php artisan migrate --path=/database/migrations/2022_04_06_084934_create_table_users.php
    Migrating: 2022_04_06_084934_create_table_users
    Migrated:  2022_04_06_084934_create_table_users (0.08 seconds)
    PS D:\Centos\PHPstudyWWW\dcatAdmin>

CREATE TABLE `users` (
      `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
      `role_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '角色ID',
      `username` varchar(50) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '账号',
      `truename` varchar(20) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '未知' COMMENT '账号',
      `password` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '密码',
      `email_verified_at` timestamp NULL DEFAULT NULL,
      `remember_token` varchar(100) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
      `email` varchar(50) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '邮箱',
      `phone` varchar(15) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '' COMMENT '手机号码',
      `sex` enum('先生','女士') COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '先生' COMMENT '性别',
      `last_ip` char(15) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '' COMMENT '登录IP',
      `created_at` timestamp NULL DEFAULT NULL,
      `updated_at` timestamp NULL DEFAULT NULL,
      `deleted_at` timestamp NULL DEFAULT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

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