<?php
// Start session
session_start();
// Include database configuration
require_once '../config/database.php';
// Check if user is logged in and has admin role
if (!isset($_SESSION['user_id']) || $_SESSION['role'] !== 'admin') {
header("Location: ../login.php");
exit();
}
// Check if bank_id is provided
if (!isset($_GET['bank_id']) || !is_numeric($_GET['bank_id'])) {
$_SESSION['error'] = "Invalid question bank ID.";
header('Location: banks.php');
exit;
}
$bank_id = $_GET['bank_id'];
// Fetch question bank details
$stmt = $conn->prepare("SELECT qb.*, c.title as course_title
FROM question_banks qb
LEFT JOIN courses c ON qb.course_id = c.id
WHERE qb.id = ?");
$stmt->bind_param("i", $bank_id);
$stmt->execute();
$result = $stmt->get_result();
if ($result->num_rows === 0) {
$_SESSION['error'] = "Question bank not found.";
header('Location: banks.php');
exit;
}
$question_bank = $result->fetch_assoc();
$stmt->close();
// Handle question deletion
if (isset($_GET['delete']) && is_numeric($_GET['delete'])) {
$question_id = $_GET['delete'];
// Check if question exists
$stmt = $conn->prepare("SELECT id FROM questions WHERE id = ? AND question_bank_id = ?");
$stmt->bind_param("ii", $question_id, $bank_id);
$stmt->execute();
if ($stmt->get_result()->num_rows > 0) {
// Delete question options first
$delete_options = $conn->prepare("DELETE FROM question_options WHERE question_id = ?");
$delete_options->bind_param("i", $question_id);
$delete_options->execute();
// Then delete the question
$delete_question = $conn->prepare("DELETE FROM questions WHERE id = ?");
$delete_question->bind_param("i", $question_id);
if ($delete_question->execute()) {
$_SESSION['success'] = "Question deleted successfully.";
} else {
$_SESSION['error'] = "Failed to delete question.";
}
} else {
$_SESSION['error'] = "Question not found.";
}
header('Location: questions.php?bank_id=' . $bank_id);
exit;
}
// Fetch questions for this bank
$stmt = $conn->prepare("SELECT q.*,
(SELECT COUNT(*) FROM question_options WHERE question_id = q.id) as option_count
FROM questions q
WHERE q.question_bank_id = ?
ORDER BY q.id DESC");
$stmt->bind_param("i", $bank_id);
$stmt->execute();
$questions = $stmt->get_result();
$stmt->close();
// Include header
include 'includes/header.php';
?>
<div class="container-fluid">
<div class="d-sm-flex align-items-center justify-content-between mb-4">
<div>
<h1 class="h3 mb-0 text-gray-800">Questions</h1>
<?php if (!empty($question_bank['course_id'])): ?>
<p class="text-muted mb-0">
<i class="fas fa-graduation-cap me-1"></i> Course: <?php echo htmlspecialchars($question_bank['course_title']); ?>
</p>
<?php endif; ?>
<p class="text-muted mb-0">
<i class="fas fa-folder me-1"></i> Bank: <?php echo htmlspecialchars($question_bank['title']); ?>
</p>
</div>
<div>
<a href="add_question.php?bank_id=<?php echo $bank_id; ?>" class="btn btn-primary btn-sm shadow-sm me-2">
<i class="fas fa-plus fa-sm text-white-50"></i> Add Question
</a>
<a href="banks.php" class="btn btn-secondary btn-sm shadow-sm">
<i class="fas fa-list fa-sm text-white-50"></i> All Question Banks
</a>
</div>
</div>
<?php if (isset($_SESSION['success'])): ?>
<div class="alert alert-success alert-dismissible fade show" role="alert">
<?php echo $_SESSION['success']; unset($_SESSION['success']); ?>
<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
</div>
<?php endif; ?>
<?php if (isset($_SESSION['error'])): ?>
<div class="alert alert-danger alert-dismissible fade show" role="alert">
<?php echo $_SESSION['error']; unset($_SESSION['error']); ?>
<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
</div>
<?php endif; ?>
<div class="card shadow mb-4">
<div class="card-header py-3 d-flex flex-row align-items-center justify-content-between">
<h6 class="m-0 font-weight-bold text-primary">Question List</h6>
<?php if ($questions->num_rows > 0): ?>
<div class="btn-group">
<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
<i class="fas fa-cog"></i> Actions
</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="add_question.php?bank_id=<?php echo $bank_id; ?>"><i class="fas fa-plus"></i> Add New Question</a></li>
<li><a class="dropdown-item" href="#" id="exportQuestions"><i class="fas fa-file-export"></i> Export Questions</a></li>
<li><a class="dropdown-item" href="#" id="importQuestionsBtn"><i class="fas fa-file-import"></i> Import Questions</a></li>
<li><a class="dropdown-item" href="question_import_export_help.php"><i class="fas fa-question-circle"></i> Import/Export Help</a></li>
</ul>
</div>
<?php endif; ?>
</div>
<div class="card-body">
<?php if ($questions->num_rows > 0): ?>
<div class="table-responsive">
<table class="table table-bordered" id="questionsTable" width="100%" cellspacing="0">
<thead>
<tr>
<th width="5%">#</th>
<th width="45%">Question</th>
<th width="15%">Type</th>
<th width="10%">Options</th>
<th width="10%">Points</th>
<th width="15%">Actions</th>
</tr>
</thead>
<tbody>
<?php
$counter = 1;
while ($row = $questions->fetch_assoc()):
$question_type_text = '';
switch ($row['question_type']) {
case 'multiple_choice':
$question_type_text = 'Multiple Choice';
break;
case 'true_false':
$question_type_text = 'True/False';
break;
case 'short_answer':
$question_type_text = 'Short Answer';
break;
case 'essay':
$question_type_text = 'Essay';
break;
default:
$question_type_text = 'Unknown';
}
?>
<tr>
<td><?php echo $counter++; ?></td>
<td>
<?php
// Display first 100 characters of question
$display_text = strip_tags($row['question_text']);
if (strlen($display_text) > 100) {
echo htmlspecialchars(substr($display_text, 0, 100)) . '...';
} else {
echo htmlspecialchars($display_text);
}
?>
</td>
<td><span class="badge bg-info"><?php echo $question_type_text; ?></span></td>
<td><?php echo $row['option_count']; ?></td>
<td><?php echo $row['marks']; ?></td>
<td>
<a href="edit_question.php?id=<?php echo $row['id']; ?>" class="btn btn-info btn-sm">
<i class="fas fa-edit"></i>
</a>
<a href="#" class="btn btn-danger btn-sm delete-question" data-id="<?php echo $row['id']; ?>">
<i class="fas fa-trash"></i>
</a>
<a href="preview_question.php?id=<?php echo $row['id']; ?>" class="btn btn-primary btn-sm">
<i class="fas fa-eye"></i>
</a>
</td>
</tr>
<?php endwhile; ?>
</tbody>
</table>
</div>
<?php else: ?>
<div class="alert alert-info">
<i class="fas fa-info-circle"></i> No questions found in this bank.
<a href="add_question.php?bank_id=<?php echo $bank_id; ?>" class="alert-link">Add your first question</a>.
</div>
<?php endif; ?>
</div>
</div>
</div>
<!-- Delete Question Confirmation Modal -->
<div class="modal fade" id="deleteQuestionModal" tabindex="-1" role="dialog" aria-labelledby="deleteQuestionModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="deleteQuestionModalLabel">Confirm Delete</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">Are you sure you want to delete this question? This action cannot be undone.</div>
<div class="modal-footer">
<button class="btn btn-secondary" type="button" data-dismiss="modal">Cancel</button>
<a class="btn btn-danger" id="confirmDeleteQuestion" href="#">Delete</a>
</div>
</div>
</div>
</div>
<!-- Import Questions Modal -->
<div class="modal fade" id="importQuestionsModal" tabindex="-1" role="dialog" aria-labelledby="importQuestionsModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="importQuestionsModalLabel">Import Questions</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<form action="import_questions.php" method="post" enctype="multipart/form-data">
<div class="modal-body">
<input type="hidden" name="bank_id" value="<?php echo $bank_id; ?>">
<div class="form-group mb-3">
<label>Upload CSV or Excel File</label>
<input type="file" name="question_file" class="form-control" required>
</div>
<div class="alert alert-info">
<i class="fas fa-info-circle"></i> Download the
<a href="generate_question_template.php" class="alert-link">question template</a>
to see the required format.
</div>
<div class="alert alert-secondary">
<h6><i class="fas fa-file-csv"></i> File Format Requirements:</h6>
<p>Your question import file must include these columns:</p>
<ul>
<li><strong>question_text</strong> - The text of the question</li>
<li><strong>question_type</strong> - "multiple_choice", "true_false", "short_answer", or "essay"</li>
<li><strong>options</strong> - For multiple choice, separate options with "|"</li>
<li><strong>correct_answer</strong> - The correct option or answer</li>
<li><strong>marks</strong> - The number of marks for the question</li>
</ul>
<p>Download: <a href="generate_question_template.php" class="alert-link">Excel Question Template</a></p>
</div>
</div>
<div class="modal-footer">
<button class="btn btn-secondary" type="button" data-dismiss="modal">Cancel</button>
<button type="submit" class="btn btn-primary">Import</button>
</div>
</form>
</div>
</div>
</div>
<script>
$(document).ready(function() {
// Initialize DataTable
$('#questionsTable').DataTable({
"order": []
});
// Handle delete question
$('.delete-question').click(function(e) {
e.preventDefault();
var questionId = $(this).data('id');
$('#confirmDeleteQuestion').attr('href', 'questions.php?bank_id=<?php echo $bank_id; ?>&delete=' + questionId);
$('#deleteQuestionModal').modal('show');
});
// Handle export questions
$('#exportQuestions').click(function(e) {
e.preventDefault();
window.location.href = 'export_questions.php?bank_id=<?php echo $bank_id; ?>';
});
// Handle import questions modal
$('#importQuestionsBtn').click(function(e) {
e.preventDefault();
$('#importQuestionsModal').modal('show');
});
// Bootstrap version compatibility for modals
// This ensures modals work in both Bootstrap 4 and Bootstrap 5
if (typeof bootstrap !== 'undefined') {
// Bootstrap 5 environment
var bsModalElements = document.querySelectorAll('.modal');
bsModalElements.forEach(function(modalElement) {
var modalId = modalElement.id;
var modalEl = document.getElementById(modalId);
// Create Bootstrap 5 modal instance for fallback
window[modalId + 'Instance'] = new bootstrap.Modal(modalEl);
// Override jQuery modal method for this specific modal if needed
var originalModalFunc = $.fn.modal;
$.fn.modal = function(action) {
if (this.attr('id') === modalId && action === 'show' && window[modalId + 'Instance']) {
window[modalId + 'Instance'].show();
return this;
}
return originalModalFunc.apply(this, arguments);
};
});
}
});
</script>
<?php
// Include footer
include 'includes/footer.php';
?>
