source: database/migrations/2019_10_20_105658_create_likes_table.php

<?php

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

class CreateLikesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('likes', function (Blueprint $table) {
            $table->increments("id");
            $table->integer("post_id")->unsigned();
            $table->foreign("post_id")->references("id")->on("posts")->onDelete("cascade")->onUpdate("cascade");
            $table->ipAddress("ip_address");
            $table->timestamps();
        });
    }

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