administraCursos/database/migrations/2019_07_07_190000_create_co...

<?php

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

class CreateCoursesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('courses', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->char('code', 8)->unique();
            $table->string('title');
            $table->unsignedBigInteger('dept_id')->default(7);
            $table->string('syllabus')->nullable();

            $table->foreign('dept_id')->references('id')->on('departments')->onUpdate('cascade');
        });
    }

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