mysql - Laravel 创建表错误

Question

vagrant@homestead:~/www/laravel$ php artisan migrate

当我运行代码时没有创建最新的数据库表。

工作:

• 角色
• 权限
• 权限角色

错误:

• 角色用户

这是我编码我的数据库迁移..

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateRolePermissions extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('roles', function(Blueprint $table){
            $table->increments('id');
            $table->string('name');
            $table->string('label');
            $table->timestamps();

        });

        Schema::create('permissions', function(Blueprint $table){
            $table->increments('id');
            $table->string('name');
            $table->string('label');
            $table->timestamps();

        });

        Schema::create('permission_role', function(Blueprint $table){
            $table->integer('role_id')->unsigined();
            $table->integer('permission_id')->unsigined();

            $table->foreign('role_id')
                ->referance('id')
                ->on('roles')
                ->onDelete('cascade');

            $table->foreign('permission_id')
                ->referance('id')
                ->on('permissions')
                ->onDelete('cascade');

            $table->primary(['role_id', 'permission_id']);

        });

        Schema::create('role_user', function(Blueprint $table){
            $table->integer('role_id')->unsigined();
            $table->integer('user_id')->unsigined();

            $table->foreign('role_id')
                ->referance('id')
                ->on('roles')
                ->onDelete('cascade');

            $table->foreign('user_id')
                ->referance('id')
                ->on('users')
                ->onDelete('cascade');

            $table->primary(['role_id', 'user_id']);

        });

    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        \DB::statement('SET FOREIGN_KEY_CHECKS = 0');

        Schema::drop('roles');
        Schema::drop('permissions');
        Schema::drop('permission_role');
        Schema::drop('role_user');

        \DB::statement('SET FOREIGN_KEY_CHECKS = 1');

    }
}

如果你帮我解决这个问题我会很高兴很长一段时间。

谢谢。

Answer 1

应该是->references()，不是->referance()。

https://laravel.com/docs/5.1/migrations#foreign-key-constraints