unity/database/migrations/2021_06_22_012651_create_contracts_table.php

<?php

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

class CreateContractsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('contracts', function (Blueprint $table) {
            $table->id();
            $table->bigInteger('user_id')->unsigned()->nullable();
            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
            $table->bigInteger('contract_template_id')->unsigned()->nullable();
            $table->foreign('contract_template_id')->references('id')->on('contract_templates')->onDelete('cascade');
            $table->string('name')->nullable();
            $table->json('in_time_contract_template');
            $table->integer('status')->nullable()->default(1);
            $table->timestamp('completed_at')->nullable();
            $table->timestamp('failed_at')->nullable();
            $table->timestamp('start_at')->nullable();
            $table->timestamp('end_at')->nullable();
            $table->timestamps();
        });
    }

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