Fixed error and Implemented BuyTickets views Model and Controller. Added Button to Events and Added Styles

CSS/style.css

@@ -629,4 +629,27 @@ td a:hover {
     max-width: 1100px;
     width: 100%;
     margin: 0 auto;
+}
+
+.event-details {
+    background: white;
+    padding: 20px;
+    border-radius: 8px;
+    margin-bottom: 20px;
+    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+}
+
+.event-details h2 {
+    margin-top: 0;
+    color: #333;
+    font-size: 1.5em;
+}
+
+.event-details p {
+    margin: 8px 0;
+    line-height: 1.4;
+}
+
+.event-details strong {
+    color: #4d4d4d;
 }

Controller/EventController.php

@@ -106,8 +106,12 @@ class EventController {
         $id = $_GET['event_id'] ?? null;
         if ($id) {
             $this->model->deleteEvent($id);
+            $this->view->setVars(['id' => $id]);
+            $this->view->setDoMethodName('deleteEvent');
+        } else {
+            header('Location: index.php?controller=Event&do=showEvents');
+            exit;
         }
-        $this->view->setDoMethodName('deleteEvent');
     }
 
     public function showUpdateEvent() {

Controller/TicketController.php

@@ -3,37 +3,120 @@
 namespace Blog\Controller;
 
 use Blog\Model\TicketModel;
+use Blog\Model\EventModel;
+use Blog\Model\StandortModel;
 
 class TicketController {
 
     private $ticketModel;
+    private $eventModel;
     private $view;
 
     public function __construct($view) {
         $this->ticketModel = new TicketModel();
+        $this->eventModel = new EventModel();
         $this->view = $view;
     }
 
     public function showTickets() {
-        $tickets = $this->ticketModel->getTickets();
+        if (!isset($_SESSION['user_id'])) {
+            header('Location: index.php?controller=Auth&do=showLoginForm');
+            exit;
+        }
+        
+        $tickets = $this->ticketModel->getUserTickets($_SESSION['user_id']);
         $this->view->setVars(['tickets' => $tickets]);
     }
 
+    public function showBuyTicketForm() {
+        if (!isset($_SESSION['user_id'])) {
+            header('Location: index.php?controller=Auth&do=showLoginForm');
+            exit;
+        }
+
+        $event_id = $_GET['event_id'] ?? null;
+        if (!$event_id) {
+            header('Location: index.php?controller=Event&do=showEvents');
+            exit;
+        }
+
+        $event = $this->eventModel->getEvent($event_id);
+        if (!$event) {
+            header('Location: index.php?controller=Event&do=showEvents');
+            exit;
+        }
+
+        // Check if user already has a ticket for this event
+        $hasTicket = $this->ticketModel->hasTicket($_SESSION['user_id'], $event_id);
+        
+        $this->view->setVars([
+            'event' => $event,
+            'hasTicket' => $hasTicket['count'] > 0
+        ]);
+    }
+
     public function buyTicket() {
+        if (!isset($_SESSION['user_id'])) {
+            header('Location: index.php?controller=Auth&do=showLoginForm');
+            exit;
+        }
+
+        $event_id = $_POST['event_id'] ?? null;
+        if (!$event_id) {
+            $this->view->setVars(['error' => 'Keine Event-ID angegeben.']);
+            return;
+        }
+
+        $event = $this->eventModel->getEvent($event_id);
+        if (!$event) {
+            $this->view->setVars(['error' => 'Event nicht gefunden.']);
+            return;
+        }
+
+        // Check if user already has a ticket for this event
+        $hasTicket = $this->ticketModel->hasTicket($_SESSION['user_id'], $event_id);
+        if ($hasTicket['count'] > 0) {
+            $this->view->setVars(['error' => 'Sie haben bereits ein Ticket für dieses Event.']);
+            return;
+        }
+
+        // Calculate valid until date (event end date + 30 days)
+        $valid_until = date('Y-m-d', strtotime($event['end_date'] . ' +30 days'));
+        
         $data = [
-            'userid' => $_POST['userid'],
+            'user_id' => $_SESSION['user_id'],
-            'eventid' => $_POST['eventid'],
+            'event_id' => $event_id,
-            'kaufdatum' => date('Y-m-d'),
+            'purchase_date' => date('Y-m-d'),
-            'gültigkeitsdatum' => $_POST['gültigkeitsdatum']
+            'valid_until' => $valid_until
         ];
-        $erg = $this->ticketModel->buyTicket($data);
+
-        $this->view->setVars(['ticket' => $erg]);
+        try {
+            $ticket_id = $this->ticketModel->buyTicket($data);
+            $this->view->setVars([
+                'event' => $event,
+                'ticket_id' => $ticket_id,
+                'purchase_date' => $data['purchase_date'],
+                'valid_until' => $valid_until
+            ]);
+            $this->view->setDoMethodName('buyTicket');
+        } catch (Exception $e) {
+            $this->view->setVars(['error' => 'Fehler beim Kauf des Tickets: ' . $e->getMessage()]);
+            $this->view->setDoMethodName('showBuyTicketForm');
+        }
     }
 
     public function deleteTicket() {
-        $ticketid = $_GET['ticketid'] ?? null;
+        if (!isset($_SESSION['user_id'])) {
-        if ($ticketid) {
+            header('Location: index.php?controller=Auth&do=showLoginForm');
-            $this->ticketModel->deleteTicket($ticketid);
+            exit;
         }
+
+        $ticket_id = $_GET['ticket_id'] ?? null;
+        if ($ticket_id) {
+            $this->ticketModel->deleteTicket($ticket_id);
+        }
+        
+        header('Location: index.php?controller=Ticket&do=showTickets');
+        exit;
     }
 }

Model/TicketModel.php

@@ -8,7 +8,12 @@ class TicketModel extends Database {
 
     public function getTickets() {
         $pdo = $this->linkDB();
-        $sql = "SELECT * FROM ticket ORDER BY ticket_id ASC;";
+        $sql = "SELECT t.*, e.name as event_name, e.start_date, e.end_date, e.ticket_price, 
+                       l.city as location_city, l.street as location_street, l.house_number as location_house_number
+                FROM ticket t 
+                JOIN event e ON t.event_id = e.event_id 
+                JOIN location l ON e.location_id = l.location_id 
+                ORDER BY t.purchase_date DESC;";
         try {
             $sth = $pdo->prepare($sql);
             $sth->execute();
@@ -19,8 +24,52 @@ class TicketModel extends Database {
         }
     }
 
+    public function getUserTickets($user_id) {
+        $pdo = $this->linkDB();
+        $sql = "SELECT t.*, e.name as event_name, e.start_date, e.end_date, e.ticket_price, 
+                       l.city as location_city, l.street as location_street, l.house_number as location_house_number
+                FROM ticket t 
+                JOIN event e ON t.event_id = e.event_id 
+                JOIN location l ON e.location_id = l.location_id 
+                WHERE t.user_id = :user_id 
+                ORDER BY t.purchase_date DESC;";
+        $params = [":user_id" => $user_id];
+        try {
+            $sth = $pdo->prepare($sql);
+            $sth->execute($params);
+            return $sth->fetchAll(\PDO::FETCH_ASSOC);
+        } catch (PDOException $e) {
+            new \Blog\Library\ErrorMsg("Fehler beim Lesen der Benutzer-Tickets.", $e);
+            die;
+        }
+    }
+
     public function buyTicket($data) {
         $pdo = $this->linkDB();
+        
+        // First check if the event still has available tickets
+        $checkSql = "SELECT e.max_tickets, COUNT(t.ticket_id) as sold_tickets 
+                     FROM event e 
+                     LEFT JOIN ticket t ON e.event_id = t.event_id 
+                     WHERE e.event_id = :event_id 
+                     GROUP BY e.event_id, e.max_tickets";
+        
+        try {
+            $checkStmt = $pdo->prepare($checkSql);
+            $checkStmt->execute([':event_id' => $data['event_id']]);
+            $eventInfo = $checkStmt->fetch(\PDO::FETCH_ASSOC);
+            
+            if (!$eventInfo) {
+                throw new \Exception("Event nicht gefunden.");
+            }
+            
+            if ($eventInfo['sold_tickets'] >= $eventInfo['max_tickets']) {
+                throw new \Exception("Alle Tickets für dieses Event sind bereits verkauft.");
+            }
+        } catch (PDOException $e) {
+            throw new \Exception("Fehler bei der Ticketverfügbarkeitsprüfung.");
+        }
+        
         $sql = "INSERT INTO ticket (user_id, event_id, purchase_date, valid_until)
                 VALUES (:user_id, :event_id, :purchase_date, :valid_until);";
         $params = [
@@ -34,8 +83,7 @@ class TicketModel extends Database {
             $sth->execute($params);
             return $pdo->lastInsertId();
         } catch (PDOException $e) {
-            new \Blog\Library\ErrorMsg("Fehler beim Kauf des Tickets.", $e);
+            throw new \Exception("Fehler beim Kauf des Tickets.");
-            die;
         }
     }
 

Views/Event/deleteEvent.phtml

@@ -4,9 +4,12 @@ include dirname(__DIR__).'/header.phtml';
 
 <div class="inhalt">
     <div class="msg">
-        <p>Das Event mit der id"<?php echo $id?>" wurde erfolgreich gelöscht!</p>
+        <p>Das Event mit der ID "<?php echo htmlspecialchars($id); ?>" wurde erfolgreich gelöscht!</p>
-        <a href="?controller=Event&do=showEvents">Weiter</a>
+        <p>Sie werden in 3 Sekunden zur Event-Übersicht weitergeleitet...</p>
+        <a href="?controller=Event&do=showEvents">Jetzt zur Event-Übersicht</a>
     </div>
 </div>
 
+<meta http-equiv="refresh" content="3;url=index.php?controller=Event&do=showEvents">
+
 <?php include dirname(__DIR__).'/footer.phtml'; ?>

Views/Event/showEvents.phtml

@@ -15,20 +15,30 @@
             <th>Beschreibung</th>
             <th>Von</th>
             <th>Bis</th>
-            <th>Max. Tickets</th>
+            <th>Preis</th>
-            <?php if (isset($_SESSION['is_admin']) && $_SESSION['is_admin']): ?>
+            <th>Tickets</th>
+            <?php if (isset($_SESSION['user_id'])): ?>
                 <th>Aktionen</th>
             <?php endif; ?>
+            <?php if (isset($_SESSION['is_admin']) && $_SESSION['is_admin']): ?>
+                <th>Admin</th>
+            <?php endif; ?>
         </tr>
         </thead>
         <tbody>
         <?php foreach ($events as $event): ?>
-            <tr>
+            <tr class="event-row" data-event-id="<?php echo $event['event_id']; ?>" style="cursor: pointer;">
                 <td><?php echo htmlspecialchars($event['name']); ?></td>
                 <td><?php echo nl2br(htmlspecialchars($event['description'])); ?></td>
                 <td><?php echo date('d.m.Y', strtotime($event['start_date'])); ?></td>
                 <td><?php echo date('d.m.Y', strtotime($event['end_date'])); ?></td>
+                <td><?php echo number_format($event['ticket_price'], 2, ',', '.'); ?> €</td>
                 <td><?php echo (int) $event['max_tickets']; ?></td>
+                <?php if (isset($_SESSION['user_id'])): ?>
+                    <td>
+                        <a href="?controller=Ticket&do=showBuyTicketForm&event_id=<?php echo $event['event_id']; ?>" class="admin-btn">Ticket kaufen</a>
+                    </td>
+                <?php endif; ?>
                 <?php if (isset($_SESSION['is_admin']) && $_SESSION['is_admin']): ?>
                     <td>
                         <a href="?controller=Event&do=showUpdateEvent&event_id=<?php echo $event['event_id']; ?>" class="admin-btn">Bearbeiten</a>
@@ -39,9 +49,29 @@
         <?php endforeach; ?>
         </tbody>
     </table>
+    </div>
+    </div>
+    </div>
+
+    <script>
+        document.addEventListener('DOMContentLoaded', function() {
+            const eventRows = document.querySelectorAll('.event-row');
+            
+            eventRows.forEach(function(row) {
+                row.addEventListener('dblclick', function(e) {
+                    // Don't trigger if clicking on a link or button
+                    if (e.target.tagName === 'A' || e.target.tagName === 'BUTTON') {
+                        return;
+                    }
+                    
+                    const eventId = this.getAttribute('data-event-id');
+                    if (eventId) {
+                        window.location.href = 'index.php?controller=Ticket&do=showBuyTicketForm&event_id=' + eventId;
+                    }
+                });
+            });
+        });
+    </script>
 <?php else: ?>
     <p>Derzeit sind keine Ausstellungen verfügbar.</p>
-<?php endif; ?>
+<?php endif; ?>  
-    </div>
-    </div>
-    </div>  

Views/Ticket/buyTicket.phtml

@@ -2,11 +2,32 @@
 include dirname(__DIR__).'/header.phtml';
 ?>
 
-    <div class="msg">
+<div class="inhalt">
-        <p>Ihr Ticket für das Event "<?php echo $event['name']?>" wurde erfolgreich gekauft!</p>
+    <div class="form-container">
-        <a href="?controller=Welcome&do=showWelcome">Weiter</a>
+        <h1>Ticket erfolgreich gekauft!</h1>
+        
+        <?php if (isset($event) && isset($ticket_id)): ?>
+            <div class="status-box">
+                <h2><?= htmlspecialchars($event['name']) ?></h2>
+                <p><strong>Ticket-ID:</strong> #<?= $ticket_id ?></p>
+                <p><strong>Kaufdatum:</strong> <?= date('d.m.Y', strtotime($purchase_date)) ?></p>
+                <p><strong>Gültig bis:</strong> <?= date('d.m.Y', strtotime($valid_until)) ?></p>
+                <p><strong>Preis:</strong> <?= number_format($event['ticket_price'], 2, ',', '.') ?> €</p>
+                <p><strong>Datum:</strong> <?= date('d.m.Y', strtotime($event['start_date'])) ?> - <?= date('d.m.Y', strtotime($event['end_date'])) ?></p>
+            </div>
+            
+            <div style="text-align:center; margin-top: 1.5em;">
+                <a href="?controller=Ticket&do=showTickets" class="admin-btn">Meine Tickets anzeigen</a>
+                <br><br>
+                <a href="?controller=Event&do=showEvents">Zurück zu den Events</a>
+            </div>
+        <?php else: ?>
+            <div class="error-box">Fehler beim Anzeigen der Ticket-Details.</div>
+            <div style="text-align:center; margin-top: 1.5em;">
+                <a href="?controller=Event&do=showEvents">Zurück zu den Events</a>
+            </div>
+        <?php endif; ?>
     </div>
-
+</div>
-
 
 <?php include dirname(__DIR__).'/footer.phtml'; ?>

Views/Ticket/buyTicketForm.phtml

@@ -0,0 +1,52 @@
+<?php
+include dirname(__DIR__).'/header.phtml';
+?>
+
+<div class="inhalt">
+    <div class="form-container">
+        <h1>Ticket kaufen</h1>
+        
+        <?php if (isset($error)): ?>
+            <div class="error-box"><?= htmlspecialchars($error) ?></div>
+        <?php endif; ?>
+        
+        <?php if (isset($event)): ?>
+            <div class="event-details">
+                <h2><?= htmlspecialchars($event['name']) ?></h2>
+                <p><strong>Beschreibung:</strong> <?= nl2br(htmlspecialchars($event['description'])) ?></p>
+                <p><strong>Datum:</strong> <?= date('d.m.Y', strtotime($event['start_date'])) ?> - <?= date('d.m.Y', strtotime($event['end_date'])) ?></p>
+                <p><strong>Preis:</strong> <?= number_format($event['ticket_price'], 2, ',', '.') ?> €</p>
+                <p><strong>Max. Tickets:</strong> <?= (int) $event['max_tickets'] ?></p>
+            </div>
+            
+            <?php if ($hasTicket): ?>
+                <div class="status-box">
+                    <p>Sie haben bereits ein Ticket für dieses Event gekauft.</p>
+                    <a href="?controller=Ticket&do=showTickets" class="admin-btn">Meine Tickets anzeigen</a>
+                </div>
+            <?php else: ?>
+                <form class="form-horizontal" action="index.php" method="post">
+                    <input type="hidden" name="controller" value="Ticket">
+                    <input type="hidden" name="do" value="buyTicket">
+                    <input type="hidden" name="event_id" value="<?= $event['event_id'] ?>">
+                    
+                    <p>Möchten Sie ein Ticket für dieses Event kaufen?</p>
+                    <p><strong>Preis:</strong> <?= number_format($event['ticket_price'], 2, ',', '.') ?> €</p>
+                    
+                    <button class="button-login" type="submit">Ticket kaufen</button>
+                </form>
+                
+                <div style="text-align:center; margin-top: 1.5em;">
+                    <a href="?controller=Event&do=showEvents">Zurück zu den Events</a>
+                </div>
+            <?php endif; ?>
+        <?php else: ?>
+            <div class="error-box">Event nicht gefunden.</div>
+            <div style="text-align:center; margin-top: 1.5em;">
+                <a href="?controller=Event&do=showEvents">Zurück zu den Events</a>
+            </div>
+        <?php endif; ?>
+    </div>
+</div>
+
+<?php include dirname(__DIR__).'/footer.phtml'; ?> 

Views/Tickets/showTickets.phtml

@@ -1,8 +1,53 @@
+<?php
+include dirname(__DIR__).'/header.phtml';
+?>
+
 <div class="inhalt">
-    <div class="tickets-container">
+    <div class="content-container">
-        <h1>Tickets</h1>
+        <div class="event-header">
-        <div class="tickets-container-inhalt">
+            <h2>Meine Tickets</h2>
-            
         </div>
+        
+        <?php if (!empty($tickets)): ?>
+            <div class="event-container-inhalt">
+                <table>
+                    <thead>
+                        <tr>
+                            <th>Event</th>
+                            <th>Datum</th>
+                            <th>Standort</th>
+                            <th>Preis</th>
+                            <th>Kaufdatum</th>
+                            <th>Gültig bis</th>
+                            <th>Aktionen</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($tickets as $ticket): ?>
+                        <tr>
+                            <td><?= htmlspecialchars($ticket['event_name']) ?></td>
+                            <td><?= date('d.m.Y', strtotime($ticket['start_date'])) ?> - <?= date('d.m.Y', strtotime($ticket['end_date'])) ?></td>
+                            <td><?= htmlspecialchars($ticket['location_street'] . ' ' . $ticket['location_house_number'] . ', ' . $ticket['location_city']) ?></td>
+                            <td><?= number_format($ticket['ticket_price'], 2, ',', '.') ?> €</td>
+                            <td><?= date('d.m.Y', strtotime($ticket['purchase_date'])) ?></td>
+                            <td><?= date('d.m.Y', strtotime($ticket['valid_until'])) ?></td>
+                            <td>
+                                <a href="?controller=Ticket&do=deleteTicket&ticket_id=<?= $ticket['ticket_id'] ?>" 
+                                   class="admin-btn" 
+                                   onclick="return confirm('Ticket wirklich löschen?')">Löschen</a>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        <?php else: ?>
+            <div class="status-box">
+                <p>Sie haben noch keine Tickets gekauft.</p>
+                <a href="?controller=Event&do=showEvents" class="admin-btn">Events anzeigen</a>
+            </div>
+        <?php endif; ?>
     </div>
-</div>
+</div>
+
+<?php include dirname(__DIR__).'/footer.phtml'; ?>