BidController.php

<?php

namespace App\Http\Controllers;

use App\Bid;
use Redirect;
use Illuminate\Http\Request;

class BidController extends Controller
{
    public function index(Request $request)
    {

        $bids = Bid::all()->sortBy('amount');

        $highestBid = $bids->sortBy('max_amount')->last();

        return view('auction', compact('bids', 'highestBid'));
    }

    public function add(Request $request)
    {
        //Get all higher bids
        $highestBid = $bids->sortBy('max_amount')->last();







        $bid = new Bid;
        $bid->amount = $request->amount;
        $bid->max_amount = $request->amount;
        $bid->user_id = $request->user_id;
        $bid->save();
        return Redirect('/');
    }

    public function delete()
    {
        $bids = Bid::all();

        foreach ($bids as $bid) {
            $bid->delete();
        }

        return Redirect('/');
    }
}