exchange-2.0/database/migrations/2020_12_02_060758_create_bookings_table.php

<?php

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

class CreateBookingsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('bookings', function (Blueprint $table) {
            $table->id();
            $table->bigInteger('company_id')->unsigned()->nullable();
            $table->foreign('company_id')->references('id')->on('companies')->onDelete('cascade');
            $table->bigInteger('transferable_bank_id')->unsigned()->nullable();
            $table->foreign('transferable_bank_id')->references('id')->on('company_banks')->onDelete('cascade');
            $table->string('marking');
            $table->string('reference');
            $table->float('fix_amount', 20, 5)->nullable();
            $table->bigInteger('fix_currency_id')->unsigned()->nullable();
            $table->foreign('fix_currency_id')->references('id')->on('currencies')->onDelete('cascade');
            $table->bigInteger('convertible_currency_id')->unsigned()->nullable();
            $table->foreign('convertible_currency_id')->references('id')->on('currencies')->onDelete('cascade');
            $table->bigInteger('conversion_currency_id')->unsigned()->nullable();
            $table->foreign('conversion_currency_id')->references('id')->on('currencies')->onDelete('cascade');
            $table->integer('status')->default(1);
            $table->timestamps();
            $table->softDeletes();
        });
    }

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