clrghouz/app/Http/Controllers/ZoneController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Validation\Rule;

use App\Models\Zone;

class ZoneController extends Controller
{
	public function __construct()
	{
		$this->middleware('auth');
	}

	/**
	 * Add or edit a node
	 */
	public function add_edit(Request $request,Zone $o)
	{
		if ($request->post()) {
			$this->authorize('admin',$o);

			$request->validate([
				'domain_id' => 'required|exists:domains,id',
				'zone_id' => [
					'required',
					'digits_between:1,5',
					Rule::unique('zones')->where(function ($query) use ($request,$o) {
						return $query->where('domain_id',$request->post('domain_id'))
							->when($o->exists,function($query) use ($o) {
								return $query->where('id','<>',$o->id);
							});
					})
				],
				'system_id' => 'required|exists:systems,id',
				'ztid' => 'nullable|size:10|regex:/^([A-Fa-f0-9]){10}$/',
				'active' => 'required|boolean',
			]);

			foreach (['zone_id','domain_id','system_id','active','notes','ztid'] as $key)
				$o->{$key} = $request->post($key);

			$o->save();

			return redirect()->action([self::class,'home']);
		}

		return view('zone.addedit')
			->with('o',$o);
	}

	public function home()
	{
		return view('zone.home');
	}
}