SATE-EasyReceipt/database/migrations/2023_04_13_150300_create_contracts_table.php

<?php

use App\Util\MigrationHelper;
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        MigrationHelper::createTable('contracts', $this->schema());
        MigrationHelper::createTable('contract_histories', $this->schema());
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('contracts');
        Schema::dropIfExists('contract_histories');
    }

    private function schema()
    {

        return function (Blueprint $table,  MigrationHelper $helper) {
            $helper->baseColumn();

            $table->string('name')->comment("契約者名")->nullable();
            $table->text('custom')->comment("カスタム")->nullable();
        };
    }
};