创建迁移文件:在命令行中使用php artisan make:migration命令创建一个新的迁移文件。例如,php artisan make:migration create_users_table将创建一个名为create_users_table的迁移文件。 编辑迁移文件:打开刚创建的迁移文件,可以看到两个方法:up()和down()。up()方法用于定义迁移的操作,down()方法用于定义回滚操作。
How to create a migration Laravel comes with anArtisan commandcalledmake:migration, which you can use to generate a migration file. The generated file’s name includes a timestamp to ensure that migrations are executed in the correct order. Inside the Laravel migration file, you can write the ...
php artisan make:migration create_wang04_table --path=database/migrations2 php artisan make:migration create_wang05_table --path=database/migrations2 运行迁移,凡在指定路径下有的文件名,没有出现在仓库表的migration字段中的,就会执行 php artisan migrate --database=mysql2 --path=database/migrations2...
['force',null,InputOption::VALUE_NONE,'Create the class even if the model already exists'],// m 创建一个migration文件['migration','m',InputOption::VALUE_NONE,'Create a new migration file for the model'], ['pivot','p',InputOption::VALUE_NONE,'Indicates if the generated model should ...
To create a migration, use the make:migration Artisan command:1php artisan make:migration create_users_tableThe new migration will be placed in your database/migrations directory. Each migration file name contains a timestamp, which allows Laravel to determine the order of the migrations....
To create a migration, use the make:migration Artisan command:1php artisan make:migration create_users_tableThe new migration will be placed in your database/migrations directory. Each migration file name contains a timestamp, which allows Laravel to determine the order of the migrations....
make:migration{name} 要定义一个可选参数,可以在参数名称后面加一个问号: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 make:migration{name?} 要为可选参数定义默认值,可以这么做: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 make:migration{name=create_users_table} ...
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A.数据库迁移与填充 1.Laravel的数据库迁移其实是定义了一个统一的接口来实现数据库架构的创建和维护,而这种统一的接口与底层的数据库及其操作语言都是无关的 2.迁移文件及命令: Laravel/database/migrations下 php artisan make:migration 文件名 —create=表名 ...
php artisan make:model State --migration 默认在 App\State.php文件内生成下面的代码：use Illuminate\Database\Eloquent\Model;class State extends Model {} 我们还是先去生成数据库表的迁移文件，手动实现迁移字段：public function up(){ Schema::create('states', function(Blueprint $table){ $table->...