migration 简介Introduction Migrations are like version control for your database, allowing your team to easily modify and share the application's database schema. Migrations are typically paired with Laravel's schema builder to easily build your application's database schema. If you have ever had ...
1. php artisan make:modelModel/Tag-m //使用控制台输入命令,创建模型,加上 -m就是同时创建Migration 2. php artisan migrate //在Migration配置好数据表字段后,输入该命令,保存数据表
曾经遇到一个场景:需要给数据表test增加一个字段age但又要保留test表里数据,可以再创建一个迁移文件php artisan make:migration create_links_table --table=links,生成的迁移文件中up()方法里引用了Schema::table()方法而不是Schema::create()方法,再添加$table->string('age')->default(0);语句,删除原来的'id...
要创建迁移，使用 make：migration Artisan 命令：php artisan make:migration create_users_table新的迁移将放置在您的 database/migrations 目录中。每个迁移文件名都包含一个时间戳，该时间戳使 Laravel 可以确定迁移的顺序。Q10：如何 mock 一个静态 facade 方法？主题：Laravel难度：⭐⭐⭐ Facades 为应用程序...
1.魔术方法:通常用户不会主动调用,而是在特定的时机被PHP系统自动调用,可以理解为系统事件监听方法,在事件发生时才触发执行。Laravel示例(Illuminate\Database\Eloquent\Model.php) 2.魔术常量:__LINE__、__FILE__、__DIR__、__FUNCTION__、__CLASS__、__TRAIT__、__METHOD__、__NAMESPACE__ ...
该命令会在 app 目录下创建模型文件 Tag.php,由于我们在 make:model 命令中使用了 --migration 选项,所以同时会创建 Tag 模型对应的数据表迁移。 写PHP的老王 2019/08/12 6720 在Laravel Eloquent 模型类中使用作用域进行查询 sql腾讯云开发者社区 在通过 Eloquent 模型实现增删改查这篇教程中,我们已经学习了如何...
When building the database schema for the App\Models\User model, make sure the password column is at least 60 characters in length. Of course, the users table migration that is included in new Laravel applications already creates a column that exceeds this length....
In addition, a "users" table migration has been included with the framework. Including these simple resources allows rapid development of application ideas without bogging down on authentication boilerplate. The authentication views may be accessed on the auth/login and auth/register routes. The App...
class MyModel extends Eloquent { use VersionableTrait ; protected $versionClass = MyModelVersion::class ; // ... }And do not forget to create a migration for this versions table, exactly as the default versions table.LicenseVersionable is free software distributed under the terms of the MIT ...
<?php use Illuminate\Support\Facades\Schema; use Illuminate\Database\Schema\Blueprint; use Illuminate\Database\Migrations\Migration; class CreatePostsTable extends Migration { /** * 执行迁移 * * @return void */ public function up() { Schema::create('posts', function (Blueprint $table) { $...