Update search-results.php

Reviewed-on: #51

content/404.php

@@ -14,7 +14,6 @@
     ?>
     <h1>404 - Seite nicht vorhanden</h1>
     <p>
-        Später im Projekt sollen über index.php?pfad= ... der Inhalt der index.php dynamisch gesetzt werden.
+        Die Seite, nach der du suchst, existiert hier leider nicht. Entweder haben wir sie verlegt, ein hungriger Bug hat sie gefressen, oder du hast dich beim Tippen vertippt. (Wir schieben die Schuld einfach mal ganz unauffällig auf dich.)
-        Alle Content-Links der Navbar führen zunächst hier her. Exemplarisch wurden für die Fächer Informatik, Physik, Mathematik der Content als Seite erstellt und kann über die Navbar ausgekundschaftet werden.
     </p>
 </main>

content/home.php

@@ -11,12 +11,9 @@ include_once 'php/controller/home-controller.php';
 
     <h1>Home</h1>
     <p>
-        Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et
+        Schön, dass du da bist. EduForge ist deine digitale Werkstatt für Lernerfolg. Wir unterstützen Schüler und
-        dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet
+        Studierende dabei, die passenden Lernmaterialien zu finden, Wissenslücken zu schließen und Gelerntes gezielt
-        clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet,
+        zu vertiefen.
-        consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat,
-        sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no
-        sea takimata sanctus est Lorem ipsum dolor sit amet.
     </p>
 
     <!-- Flexbox für aktive Kategorien -->

content/search-results.php

@@ -4,18 +4,48 @@ if (session_status() === PHP_SESSION_NONE) {
 }
 
 $all_results = $_SESSION["search_results"] ?? [];
-$query = $_SESSION["search_query"] ?? "";
+$query       = $_SESSION["search_query"] ?? "";
-$totalResultsCount = count($all_results);
+
+// ---------------------------------------------------------------
+// Parameter aus der URL lesen & validieren
+// ---------------------------------------------------------------
+$allowedCategories = [
+        'all', 'Deutsch', 'Englisch', 'Franzoesisch', 'Latein', 'Literatur',
+        'Mathematik', 'Biologie', 'Informatik', 'Chemie', 'Physik', 'Astronomie',
+        'Geschichte', 'Erdkunde', 'Sozialkunde', 'Wirtschaftskunde', 'Religion',
+        'Ethikunterricht', 'Philosophie', 'Psychologie', 'Kunst', 'Musik',
+        'Theater', 'Technik', 'Werken', 'Hauswirtschaft', 'Sport',
+];
+
+$category = $_GET['category'] ?? 'all';
+if (!in_array($category, $allowedCategories, true)) {
+    $category = 'all';
+}
 
 $limit = isset($_GET['limit']) ? (int)$_GET['limit'] : 10;
-if (!in_array($limit, [10, 20, 50, 100])) {
+if (!in_array($limit, [10, 20, 50, 100], true)) {
     $limit = 10;
 }
 
-// Gesamtseitenzahl
+$currentSort = $_SESSION['search_sort'] ?? 'alphabet';
-$totalPages = max(1, ceil($totalResultsCount / $limit));
+
+// ---------------------------------------------------------------
+// Diese Berechnung ist der Server-seitige Fallback für Nutzer ohne
+// JavaScript. Sobald JS aktiv ist, übernimmt js/search-results.js
+// Filterung, Sortierung und Pagination komplett im Browser (auf
+// Basis des unten eingebetteten JSON-Datensatzes) und überschreibt
+// diese Ausgabe live, ohne dass eine neue Seite geladen wird.
+// ---------------------------------------------------------------
+$filteredResults = $all_results;
+if ($category !== 'all') {
+    $filteredResults = array_values(array_filter($filteredResults, function ($item) use ($category) {
+        return ($item['category'] ?? '') === $category;
+    }));
+}
+
+$totalResultsCount = count($filteredResults);
+$totalPages = max(1, (int)ceil($totalResultsCount / $limit));
 
-// Aktuelle Seite auslesen und validieren
 $currentPage = isset($_GET['page']) ? (int)$_GET['page'] : 1;
 if ($currentPage < 1) {
     $currentPage = 1;
@@ -23,42 +53,68 @@ if ($currentPage < 1) {
     $currentPage = $totalPages;
 }
 
-// Startpunkt im Array berechnen (Offset)
+$offset  = ($currentPage - 1) * $limit;
-$offset = ($currentPage - 1) * $limit;
+$results = array_slice($filteredResults, $offset, $limit);
-
-// Nur die Ergebnisse für die aktuelle Seite ausschneiden
-//$results = array_slice($all_results, $offset, $limit);
-$results = $all_results;
 $resultCount = count($results);
 
+// Hilfsfunktion, um Pagination-Links zu bauen, die alle aktuellen
+// Parameter (q, sort, limit, category) beibehalten.
+function buildPageUrl(int $page, string $query, string $sort, int $limit, string $category): string
+{
+    $params = [
+            'pfad'     => 'search-results',
+            'q'        => $query,
+            'sort'     => $sort,
+            'limit'    => $limit,
+            'category' => $category,
+            'page'     => $page,
+    ];
+    return 'index.php?' . http_build_query($params);
+}
+
+// ---------------------------------------------------------------
+// JSON-Datensatz für die clientseitige Aufbereitung (Filter,
+// Sortierung, Pagination) durch js/search-results.js. Enthält ALLE
+// Treffer der Suche (unabhängig von Kategorie/Sortierung/Seite),
+// damit im Browser ohne weitere Serveranfragen gearbeitet werden kann.
+// ---------------------------------------------------------------
+$jsonItems = array_map(function ($item) {
+    $likes = isset($item['likes']) && is_array($item['likes']) ? count($item['likes']) : ($item['likes'] ?? 0);
+    return [
+            'id'          => $item['id'] ?? null,
+            'title'       => $item['title'] ?? '',
+            'author'      => $item['author'] ?? '',
+            'category'    => $item['category'] ?? '',
+            'likes'       => $likes,
+            'creationDate'=> $item['creationDate'] ?? '',
+    ];
+}, $all_results);
 ?>
 <noscript>
-    Bitte JavaScript aktivieren!
+    Bitte JavaScript aktivieren, um die volle Funktionalität (Live-Filterung ohne Neuladen) zu nutzen. Die Seite funktioniert auch ohne JavaScript – Sortierung, Filterung und Seitenwechsel erfolgen dann über die Formular- bzw. Link-Auswahl.
 </noscript>
 <!--
-    Seite: Suchergebnisse
+ Seite: Suchergebnisse
-    Inhalt: Zeigt die Ergebnisse einer Suche an
+ Inhalt: Zeigt die Ergebnisse einer Suche an
 -->
 <div class="s-res-layout-grid">
-    <?php include_once "includes/alertMessages.php"?>
+    <?php include_once "includes/alertMessages.php" ?>
-
     <!-- Links: Seitenleiste für Filter und Suche -->
     <aside class="s-res-sidebar">
+        <!-- Sortierfuntion Box und Such Box -->
+        <form action="php/controller/search-results-controller.php" method="GET" id="searchform-id" class="s-res-sidebar-form">
 
-    <!-- Sortierfuntion Box und Such Box-->
+            <input type="hidden" id="s-res-page-input" name="page" value="<?php echo (int)$currentPage; ?>">
-        <form action="php/controller/search-results-controller.php" method="GET" id="search-form-id" class="s-res-sidebar-form">
-            
-            <input type="hidden" id="s-res-page-input" name="page" value="<?php echo $_GET['page'] ?? 1; ?>">
 
             <div class="s-res-sidebar-box">
                 <h3 class="s-res-sidebar-title">Suche anpassen</h3>
-                <input type="search" id="site-search" name="q" placeholder="Suchen..." class="nav__search" value="<?php echo htmlspecialchars($query); ?>" maxlength="50" required>
+                <input type="search" id="site-search" name="q" placeholder="Suchen..."
+                       class="nav__search" value="<?php echo htmlspecialchars($query); ?>" maxlength="50" required>
                 <button type="submit" class="nav__search-button">Suchen</button>
             </div>
 
             <div class="s-res-sidebar-box">
                 <h3 class="s-res-sidebar-title">Sortierung</h3>
-                <?php $currentSort = $_SESSION['search_sort'] ?? 'alphabet'; ?>
                 <div class="s-res-filter-group">
                     <label class="s-res-filter-option">
                         <input type="radio" name="sort" value="alphabet" class="sort-radio" <?php echo $currentSort === 'alphabet' ? 'checked' : ''; ?>>
@@ -81,57 +137,38 @@ $resultCount = count($results);
 
             <div class="s-res-sidebar-box">
                 <h3 class="s-res-sidebar-title">Kategorie filtern</h3>
-                <select id="category-filter" class="s-res-limit-select" style="width: 100%; padding: 8px; border-radius: 6px; border: 1px solid #cbd5e1;">
+                <select id="category-filter" name="category" class="s-res-limit-select" style="width: 100%; padding: 8px; border-radius: 6px; border: 1px solid #cbd5e1;">
-                    <option value="all">Alle Kategorien</option>
+                    <?php foreach ($allowedCategories as $catValue):
-                    <option value="Deutsch">Deutsch</option>
+                        $label = $catValue === 'all' ? 'Alle Kategorien' : ($catValue === 'Franzoesisch' ? 'Französisch' : $catValue);
-                    <option value="Englisch">Englisch</option>
+                        ?>
-                    <option value="Franzoesisch">Französisch</option>
+                        <option value="<?php echo htmlspecialchars($catValue); ?>" <?php echo $category === $catValue ? 'selected' : ''; ?>>
-                    <option value="Latein">Latein</option>
+                            <?php echo htmlspecialchars($label); ?>
-                    <option value="Literatur">Literatur</option>
+                        </option>
-                    <option value="Mathematik">Mathematik</option>
+                    <?php endforeach; ?>
-                    <option value="Biologie">Biologie</option>
-                    <option value="Informatik">Informatik</option>
-                    <option value="Chemie">Chemie</option>
-                    <option value="Physik">Physik</option>
-                    <option value="Astronomie">Astronomie</option>
-                    <option value="Geschichte">Geschichte</option>
-                    <option value="Erdkunde">Erdkunde</option>
-                    <option value="Sozialkunde">Sozialkunde</option>
-                    <option value="Wirtschaftskunde">Wirtschaftskunde</option>
-                    <option value="Religion">Religion</option>
-                    <option value="Ethikunterricht">Ethikunterricht</option>
-                    <option value="Philosophie">Philosophie</option>
-                    <option value="Psychologie">Psychologie</option>
-                    <option value="Kunst">Kunst</option>
-                    <option value="Musik">Musik</option>
-                    <option value="Theater">Theater</option>
-                    <option value="Technik">Technik</option>
-                    <option value="Werken">Werken</option>
-                    <option value="Hauswirtschaft">Hauswirtschaft</option>
-                    <option value="Sport">Sport</option>
                 </select>
             </div>
 
+            <!-- Für Nutzer ohne JavaScript: expliziter Button, um Sortierung/Kategorie anzuwenden -->
+            <noscript>
+                <button type="submit" class="nav__search-button">Filter anwenden</button>
+            </noscript>
         </form>
-
     </aside>
 
     <main class="s-res-main-content">
-
         <div class="s-res-header">
             <h1 class="s-res-main-title">Suchergebnisse</h1>
-            <p class="s-res-meta"><?php echo $totalResultsCount; ?> Treffer für Ihre Suchanfrage "<?php echo htmlspecialchars($query); ?>"</p>
+            <p class="s-res-meta" data-query="<?php echo htmlspecialchars($query); ?>">
+                <?php echo $totalResultsCount; ?> Treffer für Ihre Suchanfrage "<?php echo htmlspecialchars($query); ?>"
+            </p>
         </div>
 
-        <!-- Ergebnisliste -->
+        <!-- Ergebnisliste: serverseitig gerendert (No-JS-Fallback). Wird bei aktivem JS durch js/search-results.js live ersetzt. -->
         <div class="s-res-list">
-            <?php 
+            <?php if (!empty($results)): ?>
-            if (!empty($results)): ?>
-    
                 <?php foreach ($results as $item):
-                    // Anzahl der Likes ermitteln (falls es ein Array ist, zählen; falls Zahl, direkt nutzen)
                     $likesCount = isset($item['likes']) && is_array($item['likes']) ? count($item['likes']) : ($item['likes'] ?? 0);
-                ?>
+                    ?>
                     <div class="s-res-item" data-likes="<?php echo $likesCount; ?>" data-category="<?php echo strtolower($item['category'] ?? ''); ?>">
                         <div class="s-res-content">
                             <h2 class="s-res-item-title">
@@ -141,35 +178,25 @@ $resultCount = count($results);
                             </h2>
                             <div class="s-res-meta-row">
                                 <p class="s-res-author">Von: <span class="s-res-author-name"><?php echo htmlspecialchars($item['author']); ?></span></p>
-
+                                <span class="s-res-likes"> ❤️ <?php echo $likesCount; ?></span>
-                                <span class="s-res-likes">
-                                    ❤️ <?php echo $likesCount; ?>
-                                </span>
                             </div>
                         </div>
                         <div class="s-res-arrow">&rarr;</div>
                     </div>
                 <?php endforeach; ?>
-
+            <?php elseif (isset($_SESSION["search_query"]) && $_SESSION["search_query"] !== "" && $resultCount === 0): ?>
-            <?php 
-            elseif (isset($_SESSION["search_query"]) && $_SESSION["search_query"] !== "" && $resultCount === 0): ?>
                 <p>Keine Beiträge zu diesem Suchbegriff gefunden.</p>
-            <?php 
+            <?php elseif (isset($_SESSION["message"]) && $_SESSION["message"] == "invalid_search_query"): ?>
-            elseif (isset($_SESSION["message"]) && $_SESSION["message"] == "invalid_search_query"): ?>
                 <p>Unzulässige Suchanfrage</p>
-                
             <?php endif; ?>
-            <?php
+            <?php unset($_SESSION["message"]); ?>
-            unset($_SESSION["message"]);
-            ?>
-
         </div>
-        <div class="s-res-pagination-footer">
 
+        <div class="s-res-pagination-footer">
             <!-- Auswahl der Ergebnisse pro Seite -->
             <div class="s-res-limit-selector">
                 <label for="s-res-per-page" class="s-res-limit-label">Ergebnisse pro Seite:</label>
-                <select id="s-res-per-page" name="limit" class="s-res-limit-select">
+                <select id="s-res-per-page" name="limit" form="searchform-id" class="s-res-limit-select">
                     <option value="10" <?php echo $limit === 10 ? 'selected' : ''; ?>>10</option>
                     <option value="20" <?php echo $limit === 20 ? 'selected' : ''; ?>>20</option>
                     <option value="50" <?php echo $limit === 50 ? 'selected' : ''; ?>>50</option>
@@ -177,15 +204,29 @@ $resultCount = count($results);
                 </select>
             </div>
 
+            <!-- No-JS-Fallback: echte Links, die serverseitig neu paginieren -->
             <div class="s-res-page-navigation">
-                <button type="button" class="s-res-page-btn" id="prev-page-btn" data-page="0">«</button>
+                <?php if ($currentPage > 1): ?>
+                    <a class="s-res-page-btn" href="<?php echo htmlspecialchars(buildPageUrl($currentPage - 1, $query, $currentSort, $limit, $category)); ?>">&laquo;</a>
+                <?php else: ?>
+                    <span class="s-res-page-btn" aria-disabled="true">&laquo;</span>
+                <?php endif; ?>
 
-                <span id="dynamic-page-numbers"></span>
+                <span id="dynamic-page-numbers">Seite <?php echo $currentPage; ?> von <?php echo $totalPages; ?></span>
 
-                <button type="button" class="s-res-page-btn" id="next-page-btn" data-page="2">»</button>
+                <?php if ($currentPage < $totalPages): ?>
+                    <a class="s-res-page-btn" href="<?php echo htmlspecialchars(buildPageUrl($currentPage + 1, $query, $currentSort, $limit, $category)); ?>">&raquo;</a>
+                <?php else: ?>
+                    <span class="s-res-page-btn" aria-disabled="true">&raquo;</span>
+                <?php endif; ?>
             </div>
-
         </div>
     </main>
-
 </div>
+
+<!-- Vollständiger, ungefilterter Ergebnis-Datensatz für die clientseitige
+     Filterung/Sortierung/Pagination (siehe js/search-results.js).
+     JSON_HEX_* verhindert das Ausbrechen aus dem <script>-Tag bzw. XSS. -->
+<script type="application/json" id="s-res-data">
+<?php echo json_encode($jsonItems, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP); ?>
+</script>

content/showArticle.php

@@ -45,8 +45,8 @@ include_once 'php/controller/showArticle-controller.php';
         </h1>
 
         <div class="article-view-meta">
-            <?php if (isset($author) && !empty($author)): ?>
+            <?php if (isset($name) && !empty($name)): ?>
-                <span class="article-view-author">Von: <strong><?php echo htmlspecialchars($author); ?></strong></span>
+                <span class="article-view-author">Von: <strong><?php echo htmlspecialchars($name); ?></strong></span>
             <?php endif; ?>
         </div>
 

content/showCategory.php

@@ -1,32 +1,111 @@
 <?php
 include_once "php/controller/showCategory-controller.php";
+
+$currentSort = isset($sortStyle) ? $sortStyle : 'alphabet';
+$currentPage = isset($page) ? $page : 1;
 ?>
 
-<main>
+<noscript>
-    <?php include_once "includes/alertMessages.php"?>
+    Bitte JavaScript aktivieren!
+</noscript>
 
-    <h1><?php if (isset($category) && !empty($category)){ echo htmlspecialchars($category); } ?></h1>
+<!-- Das Formular umschließt jetzt das gesamte Layout -->
+<form id="search-form-id" action="index.php" method="GET" style="display: contents;">
+    <input type="hidden" name="pfad" value="showCategory">
+    <input type="hidden" name="category" value="<?php echo (isset($category) && !empty($category)) ? htmlspecialchars($category) : ''; ?>">
+    <input type="hidden" id="s-res-page-input" name="page" value="<?php echo $currentPage; ?>">
 
-    <div class="s-res-list">
+    <div class="cat-view-container">
-        <?php
+
-        if (!empty($articles)): ?>
+        <!-- LINKE SPALTE: SEITENLEISTE FÜR SORTIERUNG -->
-            <?php foreach ($articles as $article): ?>
+        <aside class="cat-sidebar">
-                <div class="s-res-item">
+            <div class="cat-sidebar-box">
-                    <div class="s-res-content">
+                <h3 class="cat-sidebar-title">Sortierung</h3>
-                        <h2 class="s-res-item-title">
+                <div class="cat-filter-group">
-                            <a href="index.php?pfad=showArticle&id=<?php echo $article->getId(); ?>" class="s-res-link">
+                    <label class="cat-filter-option">
-                                <?php echo htmlspecialchars($article->getTitle()); ?>
+                        <input type="radio" name="sort" value="alphabet" <?php echo ($currentSort === 'alphabet') ? 'checked' : ''; ?> onchange="this.form.submit();">
-                            </a>
+                        Alphabetisch
-                        </h2>
+                    </label>
-                        <p class="s-res-author">Von: <span class="s-res-author-name"><?php echo htmlspecialchars($article->getAuthor()); ?></span></p>
+                    <label class="cat-filter-option">
-                    </div>
+                        <input type="radio" name="sort" value="likes" <?php echo ($currentSort === 'likes') ? 'checked' : ''; ?> onchange="this.form.submit();">
-                    <div class="s-res-arrow">&rarr;</div>
+                        Beliebtheit (Likes)
+                    </label>
+                    <label class="cat-filter-option">
+                        <input type="radio" name="sort" value="newest" <?php echo ($currentSort === 'newest') ? 'checked' : ''; ?> onchange="this.form.submit();">
+                        Neueste Beiträge
+                    </label>
+                    <label class="cat-filter-option">
+                        <input type="radio" name="sort" value="oldest" <?php echo ($currentSort === 'oldest') ? 'checked' : ''; ?> onchange="this.form.submit();">
+                        Älteste Beiträge
+                    </label>
                 </div>
-            <?php endforeach; ?>
+            </div>
-        <?php
+        </aside>
-        else: ?>
-        <p> Es sind noch keine Beiträge in dieser Kategorie enthalten.</p>
-        <?php endif; ?>
-    </div>
 
-</main>
+        <!-- RECHTE SPALTE: INHALT & PAGINATOR -->
+        <main class="cat-view-main">
+            <div class="cat-view-header">
+                <h1 class="cat-view-title">Kategorie: <?php echo (isset($category) && !empty($category)) ? htmlspecialchars($category) : 'Unbekannt'; ?></h1>
+                <p class="cat-view-meta-text">
+                    <?php echo (isset($totalArticles)) ? $totalArticles : 0; ?> Treffer in dieser Kategorie
+                </p>
+            </div>
+
+            <!-- Beiträge -->
+            <div class="cat-view-list">
+                <?php if (isset($articles) && !empty($articles)): ?>
+                    <?php foreach ($articles as $article): ?>
+                        <div class="cat-view-item">
+                            <div class="cat-view-content">
+                                <h2 class="cat-view-item-title">
+                                    <a href="index.php?pfad=showArticle&id=<?php echo htmlspecialchars($article->getID()); ?>" class="cat-view-link">
+                                        <?php echo (isset($article) && !empty($article->getTitle())) ? htmlspecialchars($article->getTitle()) : 'Kein Titel'; ?>
+                                    </a>
+                                </h2>
+
+                                <div class="cat-view-meta-row">
+                                    <p class="cat-view-author">
+                                        von <span class="cat-view-author-name"><?php echo (isset($article) && !empty($article->getAuthor())) ? htmlspecialchars($article->getAuthor()) : 'Anonym'; ?></span>
+                                    </p>
+                                    <span class="cat-view-likes">
+                                        ❤️ <?php echo (isset($article) && !empty($article->getLikes())) ? htmlspecialchars($article->getLikes()) : '0'; ?>
+                                    </span>
+                                </div>
+                                
+                            </div>
+                            <div class="cat-view-arrow">&rarr;</div>
+                        </div>
+                    <?php endforeach; ?>
+                <?php else: ?>
+                    <p class="cat-view-meta-text">Keine Artikel in dieser Kategorie gefunden.</p>
+                <?php endif; ?>
+            </div>
+
+            <!-- Footer Paginator -->
+            <?php if (isset($totalPages) && $totalPages > 1): ?>
+                <div class="cat-view-pagination-footer">
+                    <div></div>
+                    <div class="s-res-page-navigation">
+                        <button type="button" class="s-res-page-btn" data-page="<?php echo $currentPage - 1; ?>" <?php echo ($currentPage <= 1) ? 'disabled' : ''; ?>>
+                            &laquo;
+                        </button>
+
+                        <?php for ($i = 1; $i <= $totalPages; $i++): ?>
+                            <button type="button"
+                                    class="s-res-page-btn <?php echo ($i === $currentPage) ? 'cat-active-btn' : ''; ?>"
+                                    data-page="<?php echo $i; ?>"
+                                    <?php echo ($i === $currentPage) ? 'disabled' : ''; ?>>
+                                <?php echo $i; ?>
+                            </button>
+                        <?php endfor; ?>
+
+                        <button type="button" class="s-res-page-btn" data-page="<?php echo $currentPage + 1; ?>" <?php echo ($currentPage >= $totalPages) ? 'disabled' : ''; ?>>
+                            &raquo;
+                        </button>
+                    </div>
+                </div>
+            <?php endif; ?>
+        </main>
+
+    </div>
+</form>

css/showCategory.css

@@ -0,0 +1,227 @@
+/* --- ZWEISPALTIIGES GRID-LAYOUT --- */
+.cat-view-container {
+    box-sizing: border-box;
+    max-width: 95%; /* 95% Monitorbreite wie das Original */
+    width: 95%;
+    margin: 2rem auto;
+    padding: 0 1rem;
+    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+    color: #212529;
+    line-height: 1.5;
+
+    /* Grid für die Zweispaltigkeit */
+    display: grid;
+    grid-template-columns: 320px 1fr; /* 320px Sidebar, Rest für Content */
+    gap: 2.5rem;
+}
+
+.cat-view-container * {
+    box-sizing: border-box;
+}
+
+/* --- SEITENLEISTE (SORTIERUNG) --- */
+.cat-sidebar {
+    display: flex;
+    flex-direction: column;
+    gap: 1.5rem;
+}
+
+.cat-sidebar-box {
+    background-color: #ffffff;
+    border: 1px solid #e2e8f0;
+    border-radius: 8px;
+    padding: 1.25rem;
+}
+
+.cat-sidebar-title {
+    font-size: 1rem;
+    font-weight: 700;
+    color: #1a202c;
+    margin: 0 0 1rem 0;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+}
+
+.cat-filter-group {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+}
+
+.cat-filter-option {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    cursor: pointer;
+    font-size: 0.95rem;
+    color: #4a5568;
+}
+
+.cat-filter-option input[type="radio"] {
+    margin: 0;
+    accent-color: #3182ce;
+}
+
+/* --- HAUPTINHALT --- */
+.cat-view-main {
+    min-width: 0;
+}
+
+.cat-view-header {
+    margin-bottom: 2rem;
+    border-bottom: 2px solid #dee2e6;
+    padding-bottom: 1rem;
+}
+
+.cat-view-title {
+    font-size: 2rem;
+    color: #1a202c;
+    margin: 0 0 0.5rem 0;
+    font-weight: 700;
+}
+
+.cat-view-meta-text {
+    color: #6c757d;
+    font-size: 0.95rem;
+    margin: 0;
+}
+
+/* --- BEITRÄGE LISTE --- */
+.cat-view-list {
+    display: flex;
+    flex-direction: column;
+    gap: 1rem;
+}
+
+.cat-view-item {
+    background-color: #ffffff;
+    border: 1px solid #e2e8f0;
+    border-radius: 8px;
+    padding: 1.25rem;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
+}
+
+.cat-view-item:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
+    border-color: #cbd5e1;
+}
+
+.cat-view-content {
+    flex: 1;
+}
+
+.cat-view-item-title {
+    font-size: 1.25rem;
+    margin: 0 0 0.25rem 0;
+    font-weight: 600;
+}
+
+.cat-view-link {
+    color: #3182ce;
+    text-decoration: none;
+}
+
+.cat-view-link:hover {
+    text-decoration: underline;
+    color: #2b6cb0;
+}
+
+.cat-view-meta-row {
+    display: flex;
+    gap: 15px;
+    align-items: center;
+    margin-bottom: 0.5rem;
+}
+
+.cat-view-author {
+    font-size: 0.875rem;
+    color: #4a5568;
+    margin: 0;
+}
+
+.cat-view-author-name {
+    font-weight: 600;
+    color: #2d3748;
+}
+
+.cat-view-likes {
+    font-size: 0.9em;
+    color: #475569;
+}
+
+.cat-view-arrow {
+    font-size: 1.5rem;
+    color: #a0aec0;
+    padding-left: 1rem;
+    transition: color 0.2s ease, transform 0.2s ease;
+}
+
+.cat-view-item:hover .cat-view-arrow {
+    color: #3182ce;
+    transform: translateX(3px);
+}
+
+/* --- FOOTER PAGINATION --- */
+.cat-view-pagination-footer {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-top: 2rem;
+    padding-top: 1.5rem;
+    border-top: 1px solid #e2e8f0;
+}
+
+.cat-view-pagination-footer .s-res-page-navigation {
+    display: flex;
+    gap: 0.25rem;
+}
+
+.cat-view-pagination-footer .s-res-page-btn {
+    background-color: #ffffff;
+    border: 1px solid #cbd5e1;
+    color: #4a5568;
+    padding: 0.35rem 0.75rem;
+    font-size: 0.9rem;
+    font-weight: 500;
+    border-radius: 4px;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.cat-view-pagination-footer .s-res-page-btn:hover:not(:disabled) {
+    background-color: #f8f9fa;
+    border-color: #cbd5e1;
+    color: #2d3748;
+}
+
+.cat-view-pagination-footer .cat-active-btn {
+    background-color: #3182ce;
+    border-color: #3182ce;
+    color: #ffffff;
+    cursor: default;
+}
+
+.cat-view-pagination-footer .s-res-page-btn:disabled:not(.cat-active-btn) {
+    background-color: #f1f5f9;
+    border-color: #e2e8f0;
+    color: #94a3b8;
+    cursor: not-allowed;
+}
+
+/* RESPONSIVE ANPASSUNG (Unter 768px) */
+@media (max-width: 768px) {
+    .cat-view-container {
+        grid-template-columns: 1fr; /* Stapelt Sidebar und Inhalt untereinander */
+        gap: 1.5rem;
+        margin: 1rem auto;
+    }
+    .cat-view-pagination-footer {
+        flex-direction: column;
+        gap: 1rem;
+        align-items: flex-start;
+    }
+}

index.php

@@ -63,12 +63,14 @@ if ($pfad === "deleteAccount") {
         <link rel="stylesheet" href="css/profile.css">
         <link rel="stylesheet" href="css/showArticle.css">
         <link rel="stylesheet" href="css/message.css">
+        <link rel="stylesheet" href="css/showCategory.css">
 
-        <script src="js/paginator.js" async></script>
+        <!--<script src="js/paginator.js" async></script>
-        <script src="js/sorter.js" async></script>
+        <script src="js/sorter.js" async></script>-->
         <script src="js/comments.js" defer></script>
         <script src="js/editor.js" async></script>
-        <script src="js/filter.js" async></script>
+        <!--<script src="js/filter.js" async></script>-->
+        <script src="js/search-results.js" async></script>
 
         <title>EduForge</title>
     </head>

js/editor.js

@@ -1,13 +1,13 @@
-console.log("Die JavaScript-Datei wurde erfolgreich geladen!");
+console.log("editor.js wurde erfolgreich geladen!");
 
 function initEditor() {
     const form = document.getElementById("editor-form");
 
     if (!form) {
-        console.error("Skript abgebrochen: Formular nicht gefunden!");
+        console.error("editor.js wurde abgebrochen: Formular nicht gefunden!");
         return;
     } else {
-        console.log("Formular gefunden und Editor initialisiert:", form);
+        console.log("Formular gefunden und editor.js initialisiert:", form);
     }
 
     const container = document.getElementById("block-container");

js/paginator.js

@@ -1,27 +1,203 @@
-function initPaginator() {
+/**
-    const form = document.getElementById('search-form-id');
+ * Übernimmt Filterung (Kategorie), Sortierung und Pagination der
-    const pageInput = document.getElementById('s-res-page-input');
+ * Suchergebnisse vollständig clientseitig, ohne Neuladen der Seite.
-    const pageButtons = document.querySelectorAll('.s-res-page-navigation .s-res-page-btn');
+ *
+ * Voraussetzung: Im HTML liegt ein <script type="application/json" id="s-res-data">
+ * mit allen Treffern der aktuellen Suche (siehe content/search-results.php).
+ *
+ * Ist kein JavaScript aktiv, bleibt die serverseitig gerenderte Ausgabe
+ * (inkl. echter Pagination-Links und Formular-Submit) unverändert nutzbar.
+ */
+(function () {
+    const DEFAULT_PER_PAGE = 10;
 
-    pageButtons.forEach(button => {
+    const state = {
-        button.addEventListener('click', function() {
+        all: [],
-            if (this.disabled) return;
+        filtered: [],
+        category: 'all',
+        sort: 'alphabet',
+        perPage: DEFAULT_PER_PAGE,
+        page: 1,
+    };
 
-            const targetPage = this.getAttribute('data-page');
+    const els = {};
 
-            if (targetPage && form && pageInput) {
+    function init() {
-                pageInput.value = targetPage;
+        const dataScript = document.getElementById('s-res-data');
-                form.submit();
+        const listContainer = document.querySelector('.s-res-list');
-            }
+        if (!dataScript || !listContainer) {
+            return; // keine Ergebnisliste auf dieser Seite vorhanden
+        }
+
+        try {
+            state.all = JSON.parse(dataScript.textContent);
+        } catch (e) {
+            console.error('Suchergebnis-Daten konnten nicht gelesen werden.', e);
+            return;
+        }
+
+        els.list = listContainer;
+        els.categorySelect = document.getElementById('category-filter');
+        els.perPageSelect = document.getElementById('s-res-per-page');
+        els.sortRadios = document.querySelectorAll('.sort-radio');
+        els.pagerContainer = document.querySelector('.s-res-page-navigation');
+        els.metaCount = document.querySelector('.s-res-meta');
+
+        // Ausgangszustand aus dem serverseitig gerenderten Markup übernehmen,
+        // damit Browser-zurück / geteilte Links konsistent bleiben.
+        if (els.categorySelect) state.category = els.categorySelect.value || 'all';
+        if (els.perPageSelect) state.perPage = parseInt(els.perPageSelect.value, 10) || DEFAULT_PER_PAGE;
+        const checkedSort = document.querySelector('.sort-radio:checked');
+        if (checkedSort) state.sort = checkedSort.value;
+
+        // Ab hier übernimmt JS: Formular-Steuerelemente lösen keinen
+        // Seiten-Reload mehr aus, sondern rendern direkt neu.
+        if (els.categorySelect) {
+            els.categorySelect.addEventListener('change', function () {
+                state.category = this.value;
+                state.page = 1;
+                render();
+            });
+        }
+        if (els.perPageSelect) {
+            els.perPageSelect.addEventListener('change', function () {
+                state.perPage = parseInt(this.value, 10) || DEFAULT_PER_PAGE;
+                state.page = 1;
+                render();
+            });
+        }
+        els.sortRadios.forEach(function (radio) {
+            radio.addEventListener('change', function () {
+                state.sort = this.value;
+                state.page = 1;
+                render();
+            });
         });
-    });
-}
 
-// ist das DOM bereits vollständig aufgebaut?
+        render();
-if (document.readyState === 'loading') {
+    }
-    // Falls noch geladen wird, auf das Event warten
+
-    document.addEventListener('DOMContentLoaded', initPaginator);
+    function sortItems(items, sortValue) {
-} else {
+        const copy = items.slice();
-    // Falls das HTML bereits komplett da ist, sofort ausführen
+        switch (sortValue) {
-    initPaginator();
+            case 'likes':
-}
+                copy.sort(function (a, b) { return (b.likes || 0) - (a.likes || 0); });
+                break;
+            case 'newest':
+                copy.sort(function (a, b) { return (b.creationDate || '').localeCompare(a.creationDate || ''); });
+                break;
+            case 'oldest':
+                copy.sort(function (a, b) { return (a.creationDate || '').localeCompare(b.creationDate || ''); });
+                break;
+            case 'alphabet':
+            default:
+                copy.sort(function (a, b) { return a.title.localeCompare(b.title, 'de', { sensitivity: 'base' }); });
+                break;
+        }
+        return copy;
+    }
+
+    function render() {
+        let items = state.all;
+        if (state.category && state.category !== 'all') {
+            items = items.filter(function (it) {
+                return (it.category || '').toLowerCase() === state.category.toLowerCase();
+            });
+        }
+        state.filtered = sortItems(items, state.sort);
+
+        const totalResults = state.filtered.length;
+        const totalPages = Math.max(1, Math.ceil(totalResults / state.perPage));
+        if (state.page > totalPages) state.page = totalPages;
+        if (state.page < 1) state.page = 1;
+
+        const start = (state.page - 1) * state.perPage;
+        const pageItems = state.filtered.slice(start, start + state.perPage);
+
+        renderList(pageItems);
+        renderPager(totalPages);
+        renderMeta(totalResults);
+    }
+
+    function renderList(items) {
+        els.list.innerHTML = '';
+
+        if (items.length === 0) {
+            const p = document.createElement('p');
+            p.textContent = 'Keine Beiträge zu diesem Suchbegriff gefunden.';
+            els.list.appendChild(p);
+            return;
+        }
+
+        items.forEach(function (item) {
+            const div = document.createElement('div');
+            div.className = 's-res-item';
+            div.setAttribute('data-likes', item.likes || 0);
+            div.setAttribute('data-category', (item.category || '').toLowerCase());
+
+            div.innerHTML =
+                '<div class="s-res-content">' +
+                '<h2 class="s-res-item-title">' +
+                '<a class="s-res-link"></a>' +
+                '</h2>' +
+                '<div class="s-res-meta-row">' +
+                '<p class="s-res-author">Von: <span class="s-res-author-name"></span></p>' +
+                '<span class="s-res-likes"></span>' +
+                '</div>' +
+                '</div>' +
+                '<div class="s-res-arrow">&rarr;</div>';
+
+            const link = div.querySelector('.s-res-link');
+            link.href = 'index.php?pfad=showArticle&id=' + encodeURIComponent(item.id);
+            link.textContent = item.title;
+            div.querySelector('.s-res-author-name').textContent = item.author;
+            div.querySelector('.s-res-likes').textContent = item.likes || 0;
+
+            els.list.appendChild(div);
+        });
+    }
+
+    function renderPager(totalPages) {
+        if (!els.pagerContainer) return;
+        els.pagerContainer.innerHTML = '';
+
+        const prevBtn = document.createElement('button');
+        prevBtn.type = 'button';
+        prevBtn.className = 's-res-page-btn';
+        prevBtn.textContent = '\u00AB';
+        prevBtn.disabled = state.page <= 1;
+        prevBtn.addEventListener('click', function () { goToPage(state.page - 1); });
+        els.pagerContainer.appendChild(prevBtn);
+
+        const span = document.createElement('span');
+        span.id = 'dynamic-page-numbers';
+        span.textContent = 'Seite ' + state.page + ' von ' + totalPages;
+        els.pagerContainer.appendChild(span);
+
+        const nextBtn = document.createElement('button');
+        nextBtn.type = 'button';
+        nextBtn.className = 's-res-page-btn';
+        nextBtn.textContent = '\u00BB';
+        nextBtn.disabled = state.page >= totalPages;
+        nextBtn.addEventListener('click', function () { goToPage(state.page + 1); });
+        els.pagerContainer.appendChild(nextBtn);
+    }
+
+    function renderMeta(totalResults) {
+        if (!els.metaCount) return;
+        const query = els.metaCount.getAttribute('data-query') || '';
+        els.metaCount.textContent = totalResults + ' Treffer für Ihre Suchanfrage "' + query + '"';
+    }
+
+    function goToPage(page) {
+        state.page = page;
+        render();
+        els.list.scrollIntoView({ behavior: 'smooth', block: 'start' });
+    }
+
+    if (document.readyState === 'loading') {
+        document.addEventListener('DOMContentLoaded', init);
+    } else {
+        init();
+    }
+})();

js/search-results.js

@@ -0,0 +1,203 @@
+/**
+ * Übernimmt Filterung (Kategorie), Sortierung und Pagination der
+ * Suchergebnisse vollständig clientseitig, ohne Neuladen der Seite.
+ *
+ * Voraussetzung: Im HTML liegt ein <script type="application/json" id="s-res-data">
+ * mit allen Treffern der aktuellen Suche (siehe content/search-results.php).
+ *
+ * Ist kein JavaScript aktiv, bleibt die serverseitig gerenderte Ausgabe
+ * (inkl. echter Pagination-Links und Formular-Submit) unverändert nutzbar.
+ */
+(function () {
+    const DEFAULT_PER_PAGE = 10;
+
+    const state = {
+        all: [],
+        filtered: [],
+        category: 'all',
+        sort: 'alphabet',
+        perPage: DEFAULT_PER_PAGE,
+        page: 1,
+    };
+
+    const els = {};
+
+    function init() {
+        const dataScript = document.getElementById('s-res-data');
+        const listContainer = document.querySelector('.s-res-list');
+        if (!dataScript || !listContainer) {
+            return; // keine Ergebnisliste auf dieser Seite vorhanden
+        }
+
+        try {
+            state.all = JSON.parse(dataScript.textContent);
+        } catch (e) {
+            console.error('Suchergebnis-Daten konnten nicht gelesen werden.', e);
+            return;
+        }
+
+        els.list = listContainer;
+        els.categorySelect = document.getElementById('category-filter');
+        els.perPageSelect = document.getElementById('s-res-per-page');
+        els.sortRadios = document.querySelectorAll('.sort-radio');
+        els.pagerContainer = document.querySelector('.s-res-page-navigation');
+        els.metaCount = document.querySelector('.s-res-meta');
+
+        // Ausgangszustand aus dem serverseitig gerenderten Markup übernehmen,
+        // damit Browser-zurück / geteilte Links konsistent bleiben.
+        if (els.categorySelect) state.category = els.categorySelect.value || 'all';
+        if (els.perPageSelect) state.perPage = parseInt(els.perPageSelect.value, 10) || DEFAULT_PER_PAGE;
+        const checkedSort = document.querySelector('.sort-radio:checked');
+        if (checkedSort) state.sort = checkedSort.value;
+
+        // Ab hier übernimmt JS: Formular-Steuerelemente lösen keinen
+        // Seiten-Reload mehr aus, sondern rendern direkt neu.
+        if (els.categorySelect) {
+            els.categorySelect.addEventListener('change', function () {
+                state.category = this.value;
+                state.page = 1;
+                render();
+            });
+        }
+        if (els.perPageSelect) {
+            els.perPageSelect.addEventListener('change', function () {
+                state.perPage = parseInt(this.value, 10) || DEFAULT_PER_PAGE;
+                state.page = 1;
+                render();
+            });
+        }
+        els.sortRadios.forEach(function (radio) {
+            radio.addEventListener('change', function () {
+                state.sort = this.value;
+                state.page = 1;
+                render();
+            });
+        });
+
+        render();
+    }
+
+    function sortItems(items, sortValue) {
+        const copy = items.slice();
+        switch (sortValue) {
+            case 'likes':
+                copy.sort(function (a, b) { return (b.likes || 0) - (a.likes || 0); });
+                break;
+            case 'newest':
+                copy.sort(function (a, b) { return (b.creationDate || '').localeCompare(a.creationDate || ''); });
+                break;
+            case 'oldest':
+                copy.sort(function (a, b) { return (a.creationDate || '').localeCompare(b.creationDate || ''); });
+                break;
+            case 'alphabet':
+            default:
+                copy.sort(function (a, b) { return a.title.localeCompare(b.title, 'de', { sensitivity: 'base' }); });
+                break;
+        }
+        return copy;
+    }
+
+    function render() {
+        let items = state.all;
+        if (state.category && state.category !== 'all') {
+            items = items.filter(function (it) {
+                return (it.category || '').toLowerCase() === state.category.toLowerCase();
+            });
+        }
+        state.filtered = sortItems(items, state.sort);
+
+        const totalResults = state.filtered.length;
+        const totalPages = Math.max(1, Math.ceil(totalResults / state.perPage));
+        if (state.page > totalPages) state.page = totalPages;
+        if (state.page < 1) state.page = 1;
+
+        const start = (state.page - 1) * state.perPage;
+        const pageItems = state.filtered.slice(start, start + state.perPage);
+
+        renderList(pageItems);
+        renderPager(totalPages);
+        renderMeta(totalResults);
+    }
+
+    function renderList(items) {
+        els.list.innerHTML = '';
+
+        if (items.length === 0) {
+            const p = document.createElement('p');
+            p.textContent = 'Keine Beiträge zu diesem Suchbegriff gefunden.';
+            els.list.appendChild(p);
+            return;
+        }
+
+        items.forEach(function (item) {
+            const div = document.createElement('div');
+            div.className = 's-res-item';
+            div.setAttribute('data-likes', item.likes || 0);
+            div.setAttribute('data-category', (item.category || '').toLowerCase());
+
+            div.innerHTML =
+                '<div class="s-res-content">' +
+                '<h2 class="s-res-item-title">' +
+                '<a class="s-res-link"></a>' +
+                '</h2>' +
+                '<div class="s-res-meta-row">' +
+                '<p class="s-res-author">Von: <span class="s-res-author-name"></span></p>' +
+                '<span class="s-res-likes"></span>' +
+                '</div>' +
+                '</div>' +
+                '<div class="s-res-arrow">&rarr;</div>';
+
+            const link = div.querySelector('.s-res-link');
+            link.href = 'index.php?pfad=showArticle&id=' + encodeURIComponent(item.id);
+            link.textContent = item.title;
+            div.querySelector('.s-res-author-name').textContent = item.author;
+            div.querySelector('.s-res-likes').textContent = item.likes || 0;
+
+            els.list.appendChild(div);
+        });
+    }
+
+    function renderPager(totalPages) {
+        if (!els.pagerContainer) return;
+        els.pagerContainer.innerHTML = '';
+
+        const prevBtn = document.createElement('button');
+        prevBtn.type = 'button';
+        prevBtn.className = 's-res-page-btn';
+        prevBtn.textContent = '\u00AB';
+        prevBtn.disabled = state.page <= 1;
+        prevBtn.addEventListener('click', function () { goToPage(state.page - 1); });
+        els.pagerContainer.appendChild(prevBtn);
+
+        const span = document.createElement('span');
+        span.id = 'dynamic-page-numbers';
+        span.textContent = 'Seite ' + state.page + ' von ' + totalPages;
+        els.pagerContainer.appendChild(span);
+
+        const nextBtn = document.createElement('button');
+        nextBtn.type = 'button';
+        nextBtn.className = 's-res-page-btn';
+        nextBtn.textContent = '\u00BB';
+        nextBtn.disabled = state.page >= totalPages;
+        nextBtn.addEventListener('click', function () { goToPage(state.page + 1); });
+        els.pagerContainer.appendChild(nextBtn);
+    }
+
+    function renderMeta(totalResults) {
+        if (!els.metaCount) return;
+        const query = els.metaCount.getAttribute('data-query') || '';
+        els.metaCount.textContent = totalResults + ' Treffer für Ihre Suchanfrage "' + query + '"';
+    }
+
+    function goToPage(page) {
+        state.page = page;
+        render();
+        els.list.scrollIntoView({ behavior: 'smooth', block: 'start' });
+    }
+
+    if (document.readyState === 'loading') {
+        document.addEventListener('DOMContentLoaded', init);
+    } else {
+        init();
+    }
+})();

php/controller/search-results-controller.php

@@ -2,69 +2,67 @@
 if (session_status() === PHP_SESSION_NONE) {
     session_start();
 }
-require_once '../model/LocalArticleManager.php';
 require_once '../model/ArticleManager.php';
+require_once '../model/UserManager.php';
 require_once '../model/Article.php';
 require_once '../validator/search-validator.php';
 
 if ($_SERVER["REQUEST_METHOD"] === "GET" && isset($_GET["q"])) {
-
     $search = trim($_GET["q"]);
+
     if (!searchQueryValidator($search)) {
         $_SESSION["search_results"] = [];
         $_SESSION["search_query"] = "";
         $_SESSION["message"] = "invalid_search_query";
     } else {
         try {
-            
             $articleManager = ArticleManager::getInstance();
-            
+            $userManager    = UserManager::getInstance();
-            $results = $articleManager->search($search);
+            $results        = $articleManager->search($search);
 
             $sortStyle = $_GET['sort'] ?? 'alphabet';
             $_SESSION['search_sort'] = $sortStyle;
 
             if ($sortStyle === 'alphabet') {
-                // Titel aufsteigend alphabetiisch sortiert
+                // Titel aufsteigend alphabetisch sortiert
                 usort($results, function ($a, $b) {
                     return strcasecmp($a->getTitle(), $b->getTitle());
                 });
             } elseif ($sortStyle === 'likes') {
-                usort($results, function($a, $b) {
+                usort($results, function ($a, $b) {
                     return $b->getLikeCount() <=> $a->getLikeCount();
                 });
             } elseif ($sortStyle === 'newest') {
                 // Datum neu zu alt sortiert
-                usort($results, function($a, $b) {
+                usort($results, function ($a, $b) {
                     return strcmp($b->getCreationDate(), $a->getCreationDate());
                 });
             } elseif ($sortStyle === 'oldest') {
                 // Datum alt zu neu sortiert
-                usort($results, function($a, $b) {
+                usort($results, function ($a, $b) {
                     return strcmp($a->getCreationDate(), $b->getCreationDate());
                 });
             }
 
-            // Ergebnisse werden in ein flaches array umgewandelt, da sont incomplete-PHP error im Ergebnis
+            // Ergebnisse werden in ein flaches Array umgewandelt, da sonst incomplete-PHP-Fehler im Ergebnis
             $safeArrayResults = [];
             foreach ($results as $obj) {
                 $safeArrayResults[] = [
-                    "id" => $obj->getId(),
+                    "id"           => $obj->getId(),
-                    "title" => $obj->getTitle(),
+                    "title"        => $obj->getTitle(),
-                    "content" => $obj->getContent(),
+                    "content"      => $obj->getContent(),
-                    "author" => $obj->getAuthor(),
+                    "author"       => $userManager->findUser($obj->getAuthor())["vorname"] . " " . $userManager->findUser($obj->getAuthor())["nachname"],
-                    "category" => $obj->getCategory(),
+                    "category"     => $obj->getCategory(),
-                    "tags" => $obj->getTags(),
+                    "tags"         => $obj->getTags(),
                     "creationDate" => $obj->getCreationDate(),
-                    "likes" => $obj->getLikes(),
+                    "likes"        => $obj->getLikes(),
                 ];
             }
 
             $_SESSION["search_results"] = $safeArrayResults;
             $_SESSION["search_query"] = $search;
             $_SESSION["message"] = "new_search_results";
-
+        } catch (Exception $e) {
-        } catch (Exception $e){
             $_SESSION["message"] = "internal_error";
         }
     }
@@ -74,10 +72,18 @@ if ($_SERVER["REQUEST_METHOD"] === "GET" && isset($_GET["q"])) {
     if (!searchLimitValidator($limit)) {
         $limit = 10;
     }
-    $page  = isset($_GET['page']) ? (int)$_GET['page'] : 1;
+    $page = isset($_GET['page']) ? (int)$_GET['page'] : 1;
-    header("Location: ../../index.php?pfad=search-results&q=" . urlencode($search) . "&sort=" . urlencode($sort) . "&limit=" . $limit . "&page=" . $page);
+
+    // Kategorie-Filter durchreichen (Whitelist-Prüfung erfolgt in der View)
+    $category = isset($_GET['category']) ? $_GET['category'] : 'all';
+
+    header(
+        "Location: ../../index.php?pfad=search-results&q=" . urlencode($search) .
+        "&sort=" . urlencode($sort) .
+        "&limit=" . $limit .
+        "&category=" . urlencode($category) .
+        "&page=" . $page
+    );
     exit();
-    
 }
-
 ?>

php/controller/showArticle-controller.php

@@ -5,6 +5,7 @@ if (session_status() === PHP_SESSION_NONE) {
 
 require_once 'php/model/Article.php';
 require_once 'php/model/ArticleManager.php';
+require_once 'php/model/UserManager.php';
 require_once 'php/model/CommentManager.php';
 
 if (isset($_GET["id"]) && !empty($_GET["id"])){
@@ -19,12 +20,23 @@ if (isset($_GET["id"]) && !empty($_GET["id"])){
             $author = $article->getAuthor();
             $tags = $article->getTags();
             $articleObj = $article; // Objekt für die Like-Abfagen sichern
+
+            $userManager = UserManager::getInstance();
+            $name = $userManager->findUser($author)["vorname"]." ".$userManager->findUser($author)["nachname"];
         }else{
             //header("location: index.php?pfad=404");
             include_once "content/404.php";
             exit();
         }
 
+        if($_GET["pfad"] == "updateArticle"){
+            if($article->getAuthor() != $_SESSION["user_email"]){
+                $_SESSION["message"] = "unauthorized_access";
+                header("location: index.php");
+                exit();
+            }
+        }
+
         $commentManager = CommentManager::getInstance();
         $comments = $commentManager->getCommentsByArticle($_GET["id"]);
 

php/controller/showCategory-controller.php

@@ -1,19 +1,65 @@
 <?php
+if (session_status() === PHP_SESSION_NONE) {
+    session_start();
+}
+
 require_once 'php/model/Article.php';
 require_once 'php/model/ArticleManager.php';
+require_once 'php/model/UserManager.php';
 require_once 'php/validator/article-validator.php';
 
 if (isset($_GET["category"]) && !empty($_GET["category"]) && articleCategoryValidator($_GET["category"])){
     $category = $_GET["category"];
+
+    // Sortierung auslesen (Standard: alphabet)
+    $sortStyle = isset($_GET['sort']) ? trim($_GET['sort']) : 'alphabet';
+
+    // Aktuelle Seite auslesen
+    $page = isset($_GET['page']) ? (int)$_GET['page'] : 1;
+    if ($page < 1) { $page = 1; }
+
     try {
         $articleManager = ArticleManager::getInstance();
-        $articles = $articleManager->getArticlesByCategory($category);
+        $userManager = UserManager::getInstance();
+        $allArticles = $articleManager->getArticlesByCategory($category);
+        foreach ($allArticles as $article) {
+            $article->setAuthor($userManager->findUser($article->getAuthor())["vorname"] . " " . $userManager->findUser($article->getAuthor())["nachname"]);
+        }
+        $totalArticles = count($allArticles);
+
+        // --- SORTIERUNG LOGIK ---
+        if ($sortStyle === 'alphabet') {
+            usort($allArticles, function($a, $b) {
+                return strcasecmp($a->getTitle(), $b->getTitle());
+            });
+        } elseif ($sortStyle === 'likes') {
+            usort($allArticles, function($a, $b) {
+                return $b->getLikes() <=> $a->getLikes(); // Absteigend nach Likes
+            });
+        } elseif ($sortStyle === 'newest') {
+            usort($allArticles, function($a, $b) {
+                return strtotime($b->getCreationDate()) <=> strtotime($a->getCreationDate()); // Neueste zuerst
+            });
+        } elseif ($sortStyle === 'oldest') {
+            usort($allArticles, function($a, $b) {
+                return strtotime($a->getCreationDate()) <=> strtotime($b->getCreationDate()); // Älteste zuerst
+            });
+        }
+
+        // Paginierung konfigurieren
+        $limit = 10;
+        $totalPages = ceil($totalArticles / $limit);
+        if ($page > $totalPages && $totalPages > 0) { $page = $totalPages; }
+
+        $offset = ($page - 1) * $limit;
+        $articles = array_slice($allArticles, $offset, $limit);
+
     } catch (Exception $e) {
         $_SESSION["message"] = "internal_error";
         include_once "content/404.php";
         exit();
     }
-}else{
+} else {
     $_SESSION["message"] = "invalid_category";
     include_once "content/404.php";
     exit();

php/model/Article.php

@@ -97,6 +97,16 @@ class Article
         return $this->author;
     }
 
+    /**
+     * Setzt einen neuen Autor eines Beitrages.
+     * @param string $author
+     * @return void
+     */
+    public function setAuthor(string $author)
+    {
+        $this->author = $author;
+    }
+
     /**
      * Gibt das Veröffentlichungsdatum des Beitrags zurück.
      * @return string