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Viewing / Editing File: grades.php

<?php
/**
 * Grades Management Page
 * This page allows admin to add, edit, and delete grades for each educational stage
 */

require_once '../config/config.php';
requireLogin('admin');

$database = new Database();
$conn = $database->getConnection();

$message = '';
$message_type = '';

// Handle form submissions
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (isset($_POST['action'])) {
        switch ($_POST['action']) {
            case 'add':
                $stage_id = $_POST['stage_id'];
                $name = trim($_POST['name']);
                
                if (!empty($name) && !empty($stage_id)) {
                    $query = "INSERT INTO grades (stage_id, name) VALUES (:stage_id, :name)";
                    $stmt = $conn->prepare($query);
                    $stmt->bindParam(':stage_id', $stage_id);
                    $stmt->bindParam(':name', $name);
                    
                    if ($stmt->execute()) {
                        $message = 'تم إضافة الصف بنجاح';
                        $message_type = 'success';
                    } else {
                        $message = 'حدث خطأ أثناء إضافة الصف';
                        $message_type = 'danger';
                    }
                } else {
                    $message = 'يرجى إدخال جميع البيانات المطلوبة';
                    $message_type = 'danger';
                }
                break;
                
            case 'edit':
                $id = $_POST['id'];
                $stage_id = $_POST['stage_id'];
                $name = trim($_POST['name']);
                
                if (!empty($name) && !empty($stage_id) && !empty($id)) {
                    $query = "UPDATE grades SET stage_id = :stage_id, name = :name WHERE id = :id";
                    $stmt = $conn->prepare($query);
                    $stmt->bindParam(':stage_id', $stage_id);
                    $stmt->bindParam(':name', $name);
                    $stmt->bindParam(':id', $id);
                    
                    if ($stmt->execute()) {
                        $message = 'تم تحديث الصف بنجاح';
                        $message_type = 'success';
                    } else {
                        $message = 'حدث خطأ أثناء تحديث الصف';
                        $message_type = 'danger';
                    }
                } else {
                    $message = 'يرجى إدخال جميع البيانات المطلوبة';
                    $message_type = 'danger';
                }
                break;
                
            case 'delete':
                $id = $_POST['id'];
                
                // Check if grade has students
                $check_query = "SELECT COUNT(*) as count FROM groups WHERE grade_id = :id";
                $check_stmt = $conn->prepare($check_query);
                $check_stmt->bindParam(':id', $id);
                $check_stmt->execute();
                $count = $check_stmt->fetch(PDO::FETCH_ASSOC)['count'];
                
                if ($count > 0) {
                    $message = 'لا يمكن حذف الصف لأنه يحتوي على مجموعات';
                    $message_type = 'danger';
                } else {
                    $query = "DELETE FROM grades WHERE id = :id";
                    $stmt = $conn->prepare($query);
                    $stmt->bindParam(':id', $id);
                    
                    if ($stmt->execute()) {
                        $message = 'تم حذف الصف بنجاح';
                        $message_type = 'success';
                    } else {
                        $message = 'حدث خطأ أثناء حذف الصف';
                        $message_type = 'danger';
                    }
                }
                break;
        }
    }
}

// Get all grades with stage information
$query = "SELECT g.*, s.name as stage_name, COUNT(gr.id) as groups_count 
          FROM grades g 
          JOIN stages s ON g.stage_id = s.id 
          LEFT JOIN groups gr ON g.id = gr.grade_id 
          GROUP BY g.id 
          ORDER BY s.name, g.name";
$stmt = $conn->query($query);
$grades = $stmt->fetchAll(PDO::FETCH_ASSOC);

// Get all stages for dropdown
$stages_query = "SELECT * FROM stages ORDER BY name";
$stages_stmt = $conn->query($stages_query);
$stages = $stages_stmt->fetchAll(PDO::FETCH_ASSOC);

$page_title = 'إدارة الصفوف الدراسية';
include '../includes/header.php';
?>

<div class="container-fluid">
    <div class="row">
        
        <div class="col-lg-3 col-md-4 sidebar p-0">
            <div class="d-flex flex-column h-100">
                <div class="p-3 text-white">
                    <h4 class="mb-0">
                        <i class="fas fa-user-shield me-2"></i>
                        لوحة المدير
                    </h4>
                    <small>مرحباً <?php echo $_SESSION['admin_username']; ?></small>
                </div>
                
                <nav class="nav nav-pills flex-column p-3">
                    <a class="nav-link" href="dashboard.php">
                        <i class="fas fa-tachometer-alt me-2"></i>الرئيسية
                    </a>
                    <a class="nav-link" href="stages.php">
                        <i class="fas fa-layer-group me-2"></i>المراحل الدراسية
                    </a>
                    <a class="nav-link active" href="grades.php">
                        <i class="fas fa-graduation-cap me-2"></i>الصفوف الدراسية
                    </a>
                    <a class="nav-link" href="subjects.php">
                        <i class="fas fa-book me-2"></i>المواد الدراسية
                    </a>
                    <a class="nav-link" href="teachers.php">
                        <i class="fas fa-chalkboard-teacher me-2"></i>إدارة المعلمين
                    </a>
                    <a class="nav-link" href="whatsapp_setup.php">
                        <i class="fab fa-whatsapp me-2"></i>إعداد واتساب
                    </a>
                    <div class="mt-auto">
                        <a class="nav-link text-light" href="../logout.php">
                            <i class="fas fa-sign-out-alt me-2"></i>تسجيل الخروج
                        </a>
                    </div>
                </nav>
            </div>
        </div>
        
        
        <div class="col-lg-9 col-md-8 main-content p-4">
            <div class="d-flex justify-content-between align-items-center mb-4">
                <h2>إدارة الصفوف الدراسية</h2>
                <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addGradeModal">
                    <i class="fas fa-plus me-2"></i>إضافة صف جديد
                </button>
            </div>
            
            
            <?php if (!empty($message)): ?>
                <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show" role="alert">
                    <i class="fas fa-<?php echo $message_type == 'success' ? 'check-circle' : 'exclamation-triangle'; ?> me-2"></i>
                    <?php echo $message; ?>
                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                </div>
            <?php endif; ?>
            
            
            <div class="card">
                <div class="card-header">
                    <h5 class="mb-0">قائمة الصفوف الدراسية</h5>
                </div>
                <div class="card-body">
                    <div class="table-responsive">
                        <table class="table table-striped">
                            <thead>
                                <tr>
                                    <th>الرقم</th>
                                    <th>اسم الصف</th>
                                    <th>المرحلة الدراسية</th>
                                    <th>عدد المجموعات</th>
                                    <th>تاريخ الإنشاء</th>
                                    <th>الإجراءات</th>
                                </tr>
                            </thead>
                            <tbody>
                                <?php foreach ($grades as $index => $grade): ?>
                                <tr>
                                    <td><?php echo $index + 1; ?></td>
                                    <td><?php echo htmlspecialchars($grade['name']); ?></td>
                                    <td>
                                        <span class="badge bg-primary"><?php echo htmlspecialchars($grade['stage_name']); ?></span>
                                    </td>
                                    <td>
                                        <span class="badge bg-info"><?php echo $grade['groups_count']; ?> مجموعة</span>
                                    </td>
                                    <td><?php echo date('Y/m/d', strtotime($grade['created_at'])); ?></td>
                                    <td>
                                        <button class="btn btn-sm btn-warning me-1" onclick="editGrade(<?php echo $grade['id']; ?>, <?php echo $grade['stage_id']; ?>, '<?php echo htmlspecialchars($grade['name']); ?>')">
                                            <i class="fas fa-edit"></i>
                                        </button>
                                        <button class="btn btn-sm btn-danger" onclick="deleteGrade(<?php echo $grade['id']; ?>)">
                                            <i class="fas fa-trash"></i>
                                        </button>
                                    </td>
                                </tr>
                                <?php endforeach; ?>
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<div class="modal fade" id="addGradeModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">إضافة صف دراسي جديد</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form method="POST" action="">
                <div class="modal-body">
                    <input type="hidden" name="action" value="add">
                    <div class="mb-3">
                        <label for="stageSelect" class="form-label">المرحلة الدراسية</label>
                        <select class="form-select" id="stageSelect" name="stage_id" required>
                            <option value="">اختر المرحلة</option>
                            <?php foreach ($stages as $stage): ?>
                                <option value="<?php echo $stage['id']; ?>"><?php echo htmlspecialchars($stage['name']); ?></option>
                            <?php endforeach; ?>
                        </select>
                    </div>
                    <div class="mb-3">
                        <label for="gradeName" class="form-label">اسم الصف</label>
                        <input type="text" class="form-control" id="gradeName" name="name" required 
                               placeholder="مثال: الصف الأول الابتدائي">
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">إلغاء</button>
                    <button type="submit" class="btn btn-primary">
                        <i class="fas fa-save me-2"></i>حفظ
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<div class="modal fade" id="editGradeModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">تعديل الصف الدراسي</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form method="POST" action="">
                <div class="modal-body">
                    <input type="hidden" id="editGradeId" name="id">
                    <input type="hidden" name="action" value="edit">
                    <div class="mb-3">
                        <label for="editStageSelect" class="form-label">المرحلة الدراسية</label>
                        <select class="form-select" id="editStageSelect" name="stage_id" required>
                            <option value="">اختر المرحلة</option>
                            <?php foreach ($stages as $stage): ?>
                                <option value="<?php echo $stage['id']; ?>"><?php echo htmlspecialchars($stage['name']); ?></option>
                            <?php endforeach; ?>
                        </select>
                    </div>
                    <div class="mb-3">
                        <label for="editGradeName" class="form-label">اسم الصف</label>
                        <input type="text" class="form-control" id="editGradeName" name="name" required>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">إلغاء</button>
                    <button type="submit" class="btn btn-warning">
                        <i class="fas fa-save me-2"></i>حفظ التغييرات
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<div class="modal fade" id="deleteGradeModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">حذف الصف</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form method="POST" action="">
                <div class="modal-body">
                    <input type="hidden" id="deleteGradeId" name="id">
                    <input type="hidden" name="action" value="delete">
                    <p>هل أنت متأكد من حذف هذا الصف؟</p>
                    <p class="text-danger">سيتم حذف جميع المجموعات المرتبطة به.</p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">إلغاء</button>
                    <button type="submit" class="btn btn-danger">
                        <i class="fas fa-trash me-2"></i>حذف
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

function deleteGrade(id) {
    $('#deleteGradeId').val(id);
    $('#deleteGradeModal').modal('show');
}
</script>

<?php include '../includes/footer.php'; ?>

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