<?php

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

class CreateNewsItemsTable extends Migration {

	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up()
	{
        Schema::create('news_items', function (Blueprint $table) {
            // General
            $table->bigIncrements('id');
            $table->unsignedBigInteger('backend_user_id')->nullable();
            $table->foreign('backend_user_id')->references('id')
                ->on('backend_users')->onDelete('SET NULL')->onUpdate('CASCADE');
            $table->nullableTimestamps();

            $table->dateTime('publish_date')->nullable();
            $table->dateTime('expiry_date')->nullable();

            // Document
            $table->unsignedBigInteger('document_id')->nullable();
            $table->foreign('document_id')->references('id')
                ->on('media_items')->onDelete('RESTRICT')->onUpdate('CASCADE');

            // Image
            $table->unsignedBigInteger('image_id')->nullable();
            $table->foreign('image_id')->references('id')
                ->on('media_items')->onDelete('SET NULL')->onUpdate('CASCADE');
        });
	}

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

}