在laravel中表创建成功后

如何在表中新增字段

运行命令

$ php artisan make:migration add_field_into_testtable

然后打开文件database/migrations/2022_09_02_1238_add_field_into_testtable.php

内容如下

<?php 
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class AddFieldIntoTesttable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('table_testtable',function (Blueprint $table) {
            $table->string('field')->after('name')->nullable();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('table_testtable', function (Blueprint $table) {
            $table->dropColumn('field');
        });
    }
}

执行命令

$ php artisan migrate
Migrating: 2022_09_02_1238_add_field_into_testtable
Migrated:  2022_09_02_1238_add_field_into_testtable (0.06 seconds)

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回滚操作

$ php artisan migrate:rollback
Rolling back: 2022_09_02_1238_add_field_into_testtable
Rolled back:  2022_09_02_1238_add_field_into_testtable (0.06 seconds)

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