web/public/race/configure/delete.php

<?php $app = require '../../../app/inc.php';
/**
 * Deletes both team and related times
 */

use App\Teamtable\Team;
use App\Teamtable\TeamMapper;
use App\Timetable\TimeMapper;

$item    = filter_input(INPUT_GET, 'item', FILTER_VALIDATE_INT);
$confirm = filter_input(INPUT_GET, 'confirm', FILTER_VALIDATE_BOOLEAN);

$team_mapper = new TeamMapper($app->database->conn);
$time_mapper = new TimeMapper($app->database->conn);

// item is NULL if not set
if ($item === NULL)
{
    $app->session->flash('Kunne ikke slette lag: Mangler parameter.', 'danger');
    $app->redirect('index.php');
}

$team = $team_mapper->get($item);
if (!$team)
{
    // team does not exist
    $app->session->flash('Kunne ikke slette lag: Lag eksisterer ikke', 'danger');
    $app->redirect('index.php');
}

// show confirmation page
if (!$confirm)
{
    $app->view('template/header', ['title' => 'Bekreft sletting']);
    $app->view('pages/race/configure/delete', ['team' => $team]);
    $app->view('template/footer');
    die();
}

// all is good, lets delete the team and related times
$time_mapper->deleteByTeamId($team->id);
$team_mapper->delete($team->id);
$app->session->flash("Slettet lag: {$team->name}", "success");
$app->redirect('index.php');