<?php

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

class CreateFavouritesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('favourites', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->unsignedBigInteger('user_id');
            $table->unsignedBigInteger('favourite_id');

            $table->string('favourite_type', 50);
            $table->nullableTimestamps();

            $table->unique(['user_id', 'favourite_id', 'favourite_type'], 'idx_unique_favourite');

            $table->foreign('user_id')
                ->references('id')
                ->on('users')
                ->onDelete('CASCADE')
                ->onUpdate('CASCADE');
        });
    }

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