<?php

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

class UpdateZones extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
		DB::statement('ALTER TABLE zones ALTER COLUMN domain_id SET NOT NULL');

		Schema::table('zones', function (Blueprint $table) {
			$table->integer('system_id');
			$table->dropColumn(['description','ipv4','ipv4_mask','ipv6','ipv6_mask','zt_id']);
			$table->string('ztid')->nullable();
			$table->dropUnique(['domain_id']);
			$table->foreign('system_id')->references('id')->on('systems');
		});
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
		DB::statement('ALTER TABLE zones ALTER COLUMN domain_id DROP NOT NULL');

		Schema::table('zones', function (Blueprint $table) {
			$table->dropForeign(['system_id']);
			$table->dropColumn(['system_id','ztid']);
			$table->unique('domain_id');

			$table->string('description');
			$table->ipAddress('ipv4')->nullable();
			$table->integer('ipv4_mask')->nullable();
			$table->ipAddress('ipv6')->nullable();
			$table->integer('ipv6_mask')->nullable();
			$table->binary('zt_id')->nullable()->unique();
		});
    }
}