osb/app/Http/Controllers/SupplierController.php

<?php

namespace App\Http\Controllers;

use App\Http\Requests\SupplierAddEdit;
use App\Models\{Cost,Supplier,SupplierDetail};

class SupplierController extends Controller
{
	/**
	 * Update a suppliers details
	 *
	 * @param SupplierAddEdit $request
	 * @param Supplier $o
	 * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View|\Illuminate\Http\RedirectResponse
	 */
	public function addedit(SupplierAddEdit $request,Supplier $o)
	{
		$this->middleware(['auth','wholesaler']);

		foreach ($request->except(['_token','supplier_details','submit']) as $key => $item)
			$o->{$key} = $item;

		$o->active = (bool)$request->active;

		try {
			$o->save();

		} catch (\Exception $e) {
			return redirect()->back()->withErrors($e->getMessage())->withInput();
		}

		$o->load(['detail']);
		$oo = $o->detail ?: new SupplierDetail;

		foreach ($request->get('supplier_details',[]) as $key => $item)
			$oo->{$key} = $item;

		$o->detail()->save($oo);

		return redirect()->back()
			->with('success','Supplier saved');
	}

	/**
	 * Site up site wide suppliers, or a site's supplier details
	 *
	 * @note This method is protected by the routes
	 * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
	 */
	public function admin_home()
	{
		$this->middleware(['auth','wholesaler']);

		return view('supplier.home');
	}

	/**
	 * Show the suppliers invoice
	 *
	 * @param Cost $o
	 * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
	 */
	public function cost(Cost $o)
	{
		// @todo Need to add the services that are active that are not on the bill for the supplier.
		return view('supplier.cost',['o'=>$o]);
	}

	/**
	 * View a supplier.
	 *
	 * @param Supplier|null $o
	 * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
	 */
	public function view(?Supplier $o)
	{
		$this->middleware(['auth','wholesaler']);

		return view('supplier.details')
			->with('o',$o);
	}
}