weilaibike-api/database/migrations/2019_08_05_203259_create_admin_area_table.php

<?php

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

class CreateAdminAreaTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('admin_area', function (Blueprint $table) {
            $table->bigIncrements('id');

            $table->bigInteger('admin_id')->default(0)->comment('管理员id');
            $table->bigInteger('area_id')->default(0)->comment('区域id');

            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('admin_area');
    }
}