Add sorting for chapters in book.

controllers/ChapterController.php

@@ -220,7 +220,40 @@ class ChapterController extends BaseController {
         ]);
     }
 
-    // Добавьте эту функцию в начало файла
+    public function updateOrder($book_id) {
+        $this->requireLogin();
+        
+        if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+            return $this->jsonResponse(['success' => false, 'error' => 'Неверный метод запроса']);
+        }
+
+        if (!verify_csrf_token($_POST['csrf_token'] ?? '')) {
+            return $this->jsonResponse(['success' => false, 'error' => 'Ошибка безопасности']);
+        }
+
+        $user_id = $_SESSION['user_id'];
+        $chapterModel = new Chapter($this->pdo);
+        $bookModel = new Book($this->pdo);
+
+        // Проверяем права доступа к книге
+        if (!$bookModel->userOwnsBook($book_id, $user_id)) {
+            return $this->jsonResponse(['success' => false, 'error' => 'У вас нет доступа к этой книге']);
+        }
+
+        $order_data = $_POST['order'] ?? [];
+        
+        if (empty($order_data)) {
+            return $this->jsonResponse(['success' => false, 'error' => 'Нет данных для обновления']);
+        }
+
+        // Обновляем порядок глав
+        if ($chapterModel->updateChaptersOrder($book_id, $order_data)) {
+            return $this->jsonResponse(['success' => true]);
+        } else {
+            return $this->jsonResponse(['success' => false, 'error' => 'Ошибка при обновлении порядка глав']);
+        }
+    }
+
     function cleanChapterContent($content) {
         // Удаляем лишние пробелы в начале и конце
         $content = trim($content);

index.php

@@ -133,6 +133,7 @@ $router->add('/books/{book_id}/chapters/create', 'ChapterController@create');
 $router->add('/chapters/{id}/edit', 'ChapterController@edit');
 $router->add('/chapters/{id}/delete', 'ChapterController@delete');
 $router->add('/chapters/preview', 'ChapterController@preview');
+$router->add('/books/{id}/chapters/update-order', 'ChapterController@updateOrder');
 
 // Серии
 $router->add('/series', 'SeriesController@index');

models/Chapter.php

@@ -20,33 +20,31 @@ class Chapter {
     }
     
     public function findByBook($book_id) {
-        $stmt = $this->pdo->prepare("
+        $stmt = $this->pdo->prepare("SELECT * FROM chapters WHERE book_id = ? ORDER BY sort_order ASC, id ASC");
-            SELECT * FROM chapters 
-            WHERE book_id = ? 
-            ORDER BY sort_order, created_at
-        ");
         $stmt->execute([$book_id]);
         return $stmt->fetchAll(PDO::FETCH_ASSOC);
     }
     
     public function create($data) {
+        // Получаем максимальный порядковый номер для этой книги
         $stmt = $this->pdo->prepare("SELECT MAX(sort_order) as max_order FROM chapters WHERE book_id = ?");
         $stmt->execute([$data['book_id']]);
-        $result = $stmt->fetch();
+        $result = $stmt->fetch(PDO::FETCH_ASSOC);
         $next_order = ($result['max_order'] ?? 0) + 1;
 
-        $word_count = $this->countWords($data['content']);
-        
         $stmt = $this->pdo->prepare("
-            INSERT INTO chapters (book_id, title, content, sort_order, word_count, status) 
+            INSERT INTO chapters (book_id, title, content, word_count, sort_order, status, created_at, updated_at)
-            VALUES (?, ?, ?, ?, ?, ?)
+            VALUES (?, ?, ?, ?, ?, ?, NOW(), NOW())
         ");
+
+        $word_count = str_word_count(strip_tags($data['content']));
+
         return $stmt->execute([
             $data['book_id'],
             $data['title'],
             $data['content'],
-            $next_order,
             $word_count,
+            $next_order,
             $data['status'] ?? 'draft'
         ]);
     }
@@ -108,21 +106,24 @@ class Chapter {
         return $stmt->fetchAll(PDO::FETCH_ASSOC);
     }
 
-    // private function getAllChapters($book_id) {
+    public function updateChaptersOrder($book_id, $chapter_ids) {
-    //     $stmt = $this->pdo->prepare("SELECT id, content FROM chapters WHERE book_id = ?");
+        try {
-    //     $stmt->execute([$book_id]);
+            $this->pdo->beginTransaction();
-    //     return $stmt->fetchAll(PDO::FETCH_ASSOC);
-    // }
             
-    // private function updateChapterContent($chapter_id, $content) {
+            // Обновляем порядок для каждой главы
-    //     $word_count = $this->countWords($content);
+            foreach ($chapter_ids as $index => $chapter_id) {
-    //     $stmt = $this->pdo->prepare("
+                $stmt = $this->pdo->prepare("UPDATE chapters SET sort_order = ? WHERE id = ? AND book_id = ?");
-    //         UPDATE chapters 
+                $stmt->execute([$index + 1, $chapter_id, $book_id]);
-    //         SET content = ?, word_count = ?, updated_at = CURRENT_TIMESTAMP 
+            }
-    //         WHERE id = ?
+            
-    //     ");
+            $this->pdo->commit();
-    //     return $stmt->execute([$content, $word_count, $chapter_id]);
+            return true;
-    // }
+        } catch (Exception $e) {
+            $this->pdo->rollBack();
+            error_log("Error updating chapters order: " . $e->getMessage());
+            return false;
+        }
+    }
 
 }
 ?>

views/chapters/index.php

@@ -41,23 +41,39 @@ include 'views/layouts/header.php';
         </div>
     <?php else: ?>
         <div class="card">
+            <div class="card-header bg-white d-flex justify-content-between align-items-center">
+                <h5 class="card-title mb-0">Список глав</h5>
+                <div>
+                    <small class="text-muted me-3">Перетащите для изменения порядка</small>
+                    <button type="button" id="save-order-btn" class="btn btn-success btn-sm" style="display: none;">
+                        <i class="bi bi-check-circle"></i> Сохранить порядок
+                    </button>
+                </div>
+            </div>
             <div class="card-body">
+                <form id="chapters-order-form" method="post" action="<?= SITE_URL ?>/books/<?= $book['id'] ?>/chapters/update-order">
+                    <input type="hidden" name="csrf_token" value="<?= generate_csrf_token() ?>">
+                    
                     <div class="table-responsive">
-                    <table class="table table-hover">
+                        <table class="table table-hover" id="chapters-table">
                             <thead>
                                 <tr>
+                                    <th style="width: 5%;"></th>
                                     <th style="width: 5%;">№</th>
-                                <th style="width: 40%;">Название главы</th>
+                                    <th style="width: 35%;">Название главы</th>
                                     <th style="width: 15%;">Статус</th>
                                     <th style="width: 10%;">Слов</th>
                                     <th style="width: 20%;">Обновлено</th>
                                     <th style="width: 10%;">Действия</th>
                                 </tr>
                             </thead>
-                        <tbody>
+                            <tbody id="chapters-list">
                                 <?php foreach ($chapters as $index => $chapter): ?>
-                            <tr>
+                                <tr data-chapter-id="<?= $chapter['id'] ?>" class="chapter-item">
-                                <td><?= $index + 1 ?></td>
+                                    <td class="drag-handle text-muted" style="cursor: move;">
+                                        <i class="bi bi-grip-vertical"></i>
+                                    </td>
+                                    <td class="chapter-order"><?= $index + 1 ?></td>
                                     <td>
                                         <strong><?= e($chapter['title']) ?></strong>
                                         <?php if ($chapter['content']): ?>
@@ -87,11 +103,13 @@ include 'views/layouts/header.php';
                                             </form>
                                         </div>
                                     </td>
+                                    <input type="hidden" name="order[]" value="<?= $chapter['id'] ?>">
                                 </tr>
                                 <?php endforeach; ?>
                             </tbody>
                         </table>
                     </div>
+                </form>
             </div>
         </div>
 
@@ -114,4 +132,90 @@ include 'views/layouts/header.php';
     <?php endif; ?>
 </div>
 
+<?php if (!empty($chapters)): ?>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/Sortable/1.15.0/Sortable.min.js"></script>
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+    const chaptersList = document.getElementById('chapters-list');
+    const saveOrderBtn = document.getElementById('save-order-btn');
+    const orderForm = document.getElementById('chapters-order-form');
+    
+    if (chaptersList) {
+        const sortable = new Sortable(chaptersList, {
+            handle: '.drag-handle',
+            ghostClass: 'sortable-ghost',
+            chosenClass: 'sortable-chosen',
+            animation: 150,
+            onUpdate: function() {
+                saveOrderBtn.style.display = 'block';
+                updateChapterNumbers();
+            }
+        });
+    }
+    
+    // Функция для обновления номеров глав
+    function updateChapterNumbers() {
+        const orderNumbers = document.querySelectorAll('.chapter-order');
+        orderNumbers.forEach((element, index) => {
+            element.textContent = index + 1;
+        });
+    }
+    
+    // Обработчик сохранения порядка
+    saveOrderBtn.addEventListener('click', function() {
+        const formData = new FormData(orderForm);
+        
+        fetch(orderForm.action, {
+            method: 'POST',
+            body: formData
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                saveOrderBtn.innerHTML = '<i class="bi bi-check-circle"></i> Порядок сохранен';
+                saveOrderBtn.classList.remove('btn-success');
+                saveOrderBtn.classList.add('btn-secondary');
+                
+                setTimeout(() => {
+                    saveOrderBtn.style.display = 'none';
+                    saveOrderBtn.innerHTML = '<i class="bi bi-check-circle"></i> Сохранить порядок';
+                    saveOrderBtn.classList.remove('btn-secondary');
+                    saveOrderBtn.classList.add('btn-success');
+                }, 2000);
+            } else {
+                alert('Ошибка: ' + data.error);
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            alert('Произошла ошибка при сохранении порядка');
+        });
+    });
+});
+</script>
+
+<style>
+.chapter-item {
+    transition: background-color 0.2s ease;
+    background: white;
+}
+
+.chapter-item:hover {
+    background: #f8f9fa;
+}
+
+.chapter-item.sortable-ghost {
+    opacity: 0.4;
+}
+
+.chapter-item.sortable-chosen {
+    background: #e3f2fd;
+}
+
+.drag-handle {
+    font-size: 1.2rem;
+}
+</style>
+<?php endif; ?>
+
 <?php include 'views/layouts/footer.php'; ?>