Addons.php
7 years ago
Admin.php
7 years ago
Ajax.php
7 years ago
Assets.php
7 years ago
Course.php
7 years ago
Gutenberg.php
7 years ago
Instructor.php
7 years ago
Instructors_List.php
7 years ago
Lesson.php
7 years ago
Options.php
7 years ago
Post_types.php
7 years ago
Q_and_A.php
7 years ago
Question.php
7 years ago
Question_Answers_List.php
7 years ago
Quiz.php
7 years ago
Quiz_Attempts_List.php
7 years ago
Rewrite_Rules.php
7 years ago
Shortcode.php
7 years ago
Student.php
7 years ago
Students_List.php
7 years ago
Template.php
7 years ago
Theme_Compatibility.php
7 years ago
Tools.php
7 years ago
Tutor_Base.php
7 years ago
Tutor_List_Table.php
7 years ago
User.php
7 years ago
Utils.php
7 years ago
Video_Stream.php
7 years ago
init.php
7 years ago
Quiz.php
520 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Quize class |
| 5 | * |
| 6 | * @author: themeum |
| 7 | * @author_uri: https://themeum.com |
| 8 | * @package Tutor |
| 9 | * @since v.1.0.0 |
| 10 | */ |
| 11 | |
| 12 | namespace TUTOR; |
| 13 | |
| 14 | if ( ! defined( 'ABSPATH' ) ) |
| 15 | exit; |
| 16 | |
| 17 | class Quiz { |
| 18 | |
| 19 | public function __construct() { |
| 20 | add_filter( "manage_tutor_quiz_posts_columns", array($this, 'add_column'), 10,1 ); |
| 21 | add_action( "manage_tutor_quiz_posts_custom_column" , array($this, 'custom_question_column'), 10, 2 ); |
| 22 | |
| 23 | add_action( 'add_meta_boxes', array($this, 'register_meta_box') ); |
| 24 | add_action('save_post_tutor_quiz', array($this, 'save_quiz_meta')); |
| 25 | |
| 26 | add_action('wp_ajax_tutor_load_quiz_modal', array($this, 'tutor_load_quiz_modal')); |
| 27 | add_action('wp_ajax_tutor_add_quiz_to_post', array($this, 'tutor_add_quiz_to_post')); |
| 28 | add_action('wp_ajax_remove_quiz_from_post', array($this, 'remove_quiz_from_post')); |
| 29 | |
| 30 | add_action('wp_ajax_tutor_quiz_timeout', array($this, 'tutor_quiz_timeout')); |
| 31 | |
| 32 | //User take the quiz |
| 33 | add_action('template_redirect', array($this, 'start_the_quiz')); |
| 34 | add_action('template_redirect', array($this, 'answering_quiz')); |
| 35 | add_action('template_redirect', array($this, 'finishing_quiz_attempt')); |
| 36 | |
| 37 | add_action('admin_action_review_quiz_answer', array($this, 'review_quiz_answer')); |
| 38 | } |
| 39 | |
| 40 | |
| 41 | |
| 42 | public function add_column($columns){ |
| 43 | $date_col = $columns['date']; |
| 44 | unset($columns['date']); |
| 45 | $columns['quiz'] = __('Course', 'tutor'); |
| 46 | $columns['questions'] = __('Questions', 'tutor'); |
| 47 | $columns['date'] = $date_col; |
| 48 | |
| 49 | return $columns; |
| 50 | } |
| 51 | |
| 52 | public function custom_question_column($column, $post_id ){ |
| 53 | if ($column === 'quiz'){ |
| 54 | $quiz = tutor_utils()->get_course_by_quiz($post_id); |
| 55 | |
| 56 | if ($quiz){ |
| 57 | echo '<a href="'.admin_url('post.php?post='.$quiz->ID.'&action=edit').'">'.get_the_title($quiz->ID).'</a>'; |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | if ($column === 'questions'){ |
| 62 | echo tutor_utils()->total_questions_for_student_by_quiz($post_id); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | |
| 67 | public function register_meta_box(){ |
| 68 | add_meta_box( 'tutor-quiz-questions', __( 'Questions', 'tutor' ), array($this, 'quiz_questions'), 'tutor_quiz' ); |
| 69 | add_meta_box( 'tutor-quiz-settings', __( 'Settings', 'tutor' ), array($this, 'quiz_settings'), 'tutor_quiz' ); |
| 70 | } |
| 71 | |
| 72 | public function quiz_questions(){ |
| 73 | include tutor()->path.'views/metabox/quiz_questions.php'; |
| 74 | } |
| 75 | |
| 76 | public function quiz_settings(){ |
| 77 | include tutor()->path.'views/metabox/quizzes.php'; |
| 78 | } |
| 79 | |
| 80 | public function save_quiz_meta($post_ID){ |
| 81 | if (isset($_POST['quiz_option'])){ |
| 82 | $quiz_option = tutor_utils()->sanitize_array($_POST['quiz_option']); |
| 83 | update_post_meta($post_ID, 'tutor_quiz_option', $quiz_option); |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | public function tutor_load_quiz_modal(){ |
| 88 | $quiz_for_post_id = (int) sanitize_text_field($_POST['quiz_for_post_id']); |
| 89 | |
| 90 | $search_terms = sanitize_text_field(tutor_utils()->avalue_dot('search_terms', $_POST)); |
| 91 | $quizzes = tutor_utils()->get_unattached_quiz(array('search_term' => $search_terms)); |
| 92 | |
| 93 | $output = ''; |
| 94 | if ($quizzes){ |
| 95 | foreach ($quizzes as $quiz){ |
| 96 | $output .= "<p><label><input type='checkbox' name='quiz_for[{$quiz_for_post_id}][quiz_id][]' value='{$quiz->ID}' > {$quiz->post_title} </label></p>"; |
| 97 | } |
| 98 | $output .= '<p class="quiz-search-suggest-text">Search the quiz to get specific quiz</p>'; |
| 99 | }else{ |
| 100 | $add_question_url = admin_url('post-new.php?post_type=tutor_quiz'); |
| 101 | $output .= sprintf('No quiz available right now, please %s add some quiz %s', '<a href="'.$add_question_url.'" target="_blank">', '</a>' ); |
| 102 | } |
| 103 | |
| 104 | ob_start(); |
| 105 | ?> |
| 106 | <div class="tutor-option-field-row"> |
| 107 | <div class="tutor-option-field-label"> |
| 108 | <label for=""> |
| 109 | <?php _e('New quiz title', 'tutor'); ?> |
| 110 | </label> |
| 111 | </div> |
| 112 | <div class="tutor-option-field"> |
| 113 | <input type="text" name="quiz_title" placeholder="<?php _e('Place quiz title to create new quiz', 'tutor'); ?>" > |
| 114 | <p class="desc"><?php _e('Provide a quiz title to create a quiz from here.'); ?></p> |
| 115 | </div> |
| 116 | </div> |
| 117 | |
| 118 | <?php |
| 119 | $output .= ob_get_clean(); |
| 120 | |
| 121 | wp_send_json_success(array('output' => $output)); |
| 122 | } |
| 123 | |
| 124 | public function tutor_add_quiz_to_post(){ |
| 125 | global $wpdb; |
| 126 | |
| 127 | $quiz_data = tutor_utils()->avalue_dot('quiz_for', $_POST); |
| 128 | |
| 129 | $output = ''; |
| 130 | $post_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('parent_post_id', $_POST)) ; |
| 131 | if ($quiz_data){ |
| 132 | foreach ($quiz_data as $post_id => $quiz_ids_a); |
| 133 | |
| 134 | $quiz_ids = tutor_utils()->avalue_dot('quiz_id', $quiz_ids_a); |
| 135 | foreach ($quiz_ids as $quiz_id){ |
| 136 | $wpdb->update($wpdb->posts, array('post_parent' => $post_id), array('ID' => $quiz_id) ); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | $quiz_title = sanitize_text_field(tutor_utils()->avalue_dot('quiz_title', $_POST)); |
| 141 | if ($quiz_title){ |
| 142 | wp_insert_post(array( |
| 143 | 'post_parent' => $post_id, |
| 144 | 'post_title' => $quiz_title, |
| 145 | 'post_type' => 'tutor_quiz', |
| 146 | 'post_status' => 'publish', |
| 147 | )); |
| 148 | } |
| 149 | |
| 150 | if ($post_id) { |
| 151 | ob_start(); |
| 152 | $attached_quizzes = tutor_utils()->get_attached_quiz( $post_id ); |
| 153 | if ( $attached_quizzes ) { |
| 154 | foreach ( $attached_quizzes as $attached_quiz ) { |
| 155 | ?> |
| 156 | <div id="added-quiz-id-<?php echo $attached_quiz->ID; ?>" class="added-quiz-item added-quiz-item-<?php echo $attached_quiz->ID; ?>" data-quiz-id="<?php echo $attached_quiz->ID; ?>"> |
| 157 | <span class="quiz-icon"><i class="dashicons dashicons-clock"></i></span> |
| 158 | <span class="quiz-name"> |
| 159 | <?php edit_post_link( $attached_quiz->post_title, null, null, $attached_quiz->ID ); ?> |
| 160 | </span> |
| 161 | <span class="quiz-control"> |
| 162 | <a href="javascript:;" class="tutor-quiz-delete-btn"><i class="dashicons dashicons-trash"></i></a> |
| 163 | </span> |
| 164 | </div> |
| 165 | <?php |
| 166 | } |
| 167 | } |
| 168 | $output .= ob_get_clean(); |
| 169 | } |
| 170 | |
| 171 | wp_send_json_success(array('output' => $output)); |
| 172 | } |
| 173 | |
| 174 | public function remove_quiz_from_post(){ |
| 175 | global $wpdb; |
| 176 | $quiz_id = (int) tutor_utils()->avalue_dot('quiz_id', $_POST); |
| 177 | $wpdb->update($wpdb->posts, array('post_parent' => 0), array('ID' => $quiz_id) ); |
| 178 | wp_send_json_success(); |
| 179 | } |
| 180 | |
| 181 | public function start_the_quiz(){ |
| 182 | if ( ! isset($_POST['tutor_action']) || $_POST['tutor_action'] !== 'tutor_start_quiz' ){ |
| 183 | return; |
| 184 | } |
| 185 | //Checking nonce |
| 186 | tutor_utils()->checking_nonce(); |
| 187 | |
| 188 | if ( ! is_user_logged_in()){ |
| 189 | //TODO: need to set a view in the next version |
| 190 | die('Please sign in to do this operation'); |
| 191 | } |
| 192 | |
| 193 | global $wpdb; |
| 194 | |
| 195 | $user_id = get_current_user_id(); |
| 196 | $user = get_userdata($user_id); |
| 197 | |
| 198 | $quiz_id = (int) sanitize_text_field($_POST['quiz_id']); |
| 199 | $quiz = get_post($quiz_id); |
| 200 | $date = date("Y-m-d H:i:s"); |
| 201 | |
| 202 | $attempts_allowed = tutor_utils()->get_quiz_option($quiz_id, 'attempts_allowed', 0); |
| 203 | |
| 204 | do_action('tutor_before_start_quiz', $quiz_id); |
| 205 | $data = array( |
| 206 | 'comment_post_ID' => $quiz_id, //QuizID |
| 207 | 'comment_author' => $user->user_login, |
| 208 | 'comment_date' => $date, |
| 209 | 'comment_date_gmt' => get_gmt_from_date($date), |
| 210 | 'comment_approved' => 'quiz_started', //quiz_timeup, quiz_complete |
| 211 | 'comment_agent' => 'TutorLMSPlugin', |
| 212 | 'comment_type' => 'tutor_quiz_attempt', |
| 213 | 'comment_parent' => $quiz->post_parent, //Quiz Parent Attached Course || Lesson || Topic |
| 214 | 'user_id' => $user_id, |
| 215 | ); |
| 216 | |
| 217 | $wpdb->insert($wpdb->comments, $data); |
| 218 | $attempt_id = (int) $wpdb->insert_id; |
| 219 | |
| 220 | $time_limit = tutor_utils()->get_quiz_option($quiz_id, 'time_limit.time_value'); |
| 221 | $time_limit_seconds = 0; |
| 222 | $time_type = 'seconds'; |
| 223 | if ($time_limit){ |
| 224 | $time_type = tutor_utils()->get_quiz_option($quiz_id, 'time_limit.time_type'); |
| 225 | |
| 226 | switch ($time_type){ |
| 227 | case 'seconds': |
| 228 | $time_limit_seconds = $time_limit; |
| 229 | break; |
| 230 | case 'minutes': |
| 231 | $time_limit_seconds = $time_limit * 60; |
| 232 | break; |
| 233 | case 'hours': |
| 234 | $time_limit_seconds = $time_limit * 60 * 60; |
| 235 | break; |
| 236 | case 'days': |
| 237 | $time_limit_seconds = $time_limit * 60 * 60 * 24; |
| 238 | break; |
| 239 | case 'weeks': |
| 240 | $time_limit_seconds = $time_limit * 60 * 60 * 24 * 7; |
| 241 | break; |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | $max_question_allowed = tutor_utils()->max_questions_for_take_quiz($quiz_id); |
| 246 | $quiz_attempt_info = array( |
| 247 | 'time_limit' => $time_limit, |
| 248 | 'time_type' => $time_type, |
| 249 | 'time_limit_seconds' => $time_limit_seconds, |
| 250 | 'total_question' => $max_question_allowed, |
| 251 | 'answered_question' => 0, |
| 252 | 'current_question' => 0, |
| 253 | 'marks_earned' => 0, |
| 254 | 'answers' => array(), |
| 255 | ); |
| 256 | |
| 257 | //answers format |
| 258 | /* |
| 259 | array( |
| 260 | '0' => array( 'questionID' => 344, 'has_correct' => 1, //or 0 for false, 'questionSiNo' => 1 |
| 261 | 'answers_list' => array( |
| 262 | 'answers_id' => array('selected_answerId_1', 'selected_answerId_2', 'or_line_answer_text') |
| 263 | ) |
| 264 | ), |
| 265 | |
| 266 | '1' => array( 'questionID' => 654, 'has_correct' => 0, //or 0 for false, 'questionSiNo' => 2 |
| 267 | 'answers_list' => array( |
| 268 | 'answers_id' => array('selected_answerId_1', 'selected_answerId_2', 'or_line_answer_text') |
| 269 | ) |
| 270 | ), |
| 271 | ); |
| 272 | */ |
| 273 | |
| 274 | update_comment_meta($attempt_id, 'quiz_attempt_info', $quiz_attempt_info); |
| 275 | update_comment_meta($attempt_id, 'earned_mark_percent', '0'); |
| 276 | |
| 277 | do_action('tutor_after_start_quiz', $quiz_id, $attempt_id); |
| 278 | |
| 279 | wp_redirect(tutor_utils()->input_old('_wp_http_referer')); |
| 280 | die(); |
| 281 | } |
| 282 | |
| 283 | |
| 284 | public function answering_quiz(){ |
| 285 | if ( ! isset($_POST['tutor_action']) || $_POST['tutor_action'] !== 'tutor_answering_quiz_question' ){ |
| 286 | return; |
| 287 | } |
| 288 | //Checking nonce |
| 289 | tutor_utils()->checking_nonce(); |
| 290 | |
| 291 | if ( ! is_user_logged_in()){ |
| 292 | die('Please sign in to do this operation'); |
| 293 | } |
| 294 | |
| 295 | global $wpdb; |
| 296 | |
| 297 | $user_id = get_current_user_id(); |
| 298 | $attempt_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('attempt_id', $_POST)); |
| 299 | $post_question_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('quiz_question_id', $_POST)); |
| 300 | $attempt = tutor_utils()->get_attempt($attempt_id); |
| 301 | |
| 302 | if ( ! $attempt || $user_id != $attempt->user_id){ |
| 303 | die('Operation not allowed, attempt not found or permission denied'); |
| 304 | } |
| 305 | |
| 306 | $attempt_info = tutor_utils()->quiz_attempt_info($attempt_id); |
| 307 | $given_answers = tutor_utils()->avalue_dot("attempt.{$attempt_id}.quiz_question.{$post_question_id}", $_POST); |
| 308 | |
| 309 | $plus_mark = 0; |
| 310 | $minus_mark = 0; |
| 311 | $is_answer_corrected = false; |
| 312 | |
| 313 | $answers = array( |
| 314 | 'questionID' => $post_question_id, |
| 315 | ); |
| 316 | |
| 317 | $question_type = get_post_meta($post_question_id, '_question_type', true); |
| 318 | $question_mark = get_post_meta($post_question_id, '_question_mark', true); |
| 319 | |
| 320 | if ($given_answers){ |
| 321 | $answers['status'] = 'answered'; //or 0 for false, 'questionSiNo' => 2 |
| 322 | $answers['has_correct'] = 0; |
| 323 | |
| 324 | $saved_answers = tutor_utils()->get_quiz_answer_options_by_question($post_question_id); |
| 325 | $corrects_answer_ids = array(); |
| 326 | if (is_array($saved_answers) && count($saved_answers)){ |
| 327 | foreach ($saved_answers as $saved_answer){ |
| 328 | $saved_answer_info = json_decode($saved_answer->comment_content); |
| 329 | |
| 330 | if ( ! empty($saved_answer_info->is_correct) && $saved_answer_info->is_correct){ |
| 331 | $corrects_answer_ids[] = $saved_answer->comment_ID; |
| 332 | } |
| 333 | } |
| 334 | } |
| 335 | |
| 336 | if ($question_type === 'multiple_choice'){ |
| 337 | $given_answers = (array) $given_answers; |
| 338 | } |
| 339 | |
| 340 | //TODO: need to provide support for question type more if we add |
| 341 | //Checking if all answer corrects |
| 342 | if ($question_type === 'true_false' || $question_type === 'multiple_choice' || $question_type === 'single_choice'){ |
| 343 | if ($question_type === 'multiple_choice') { |
| 344 | $is_answer_corrected = count(array_intersect($given_answers, $corrects_answer_ids)) == count($given_answers); |
| 345 | }else{ |
| 346 | $is_answer_corrected = in_array($given_answers, $corrects_answer_ids); |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | if ($is_answer_corrected){ |
| 351 | $plus_mark = $question_mark; |
| 352 | $answers['has_correct'] = 1; |
| 353 | }else{ |
| 354 | //TODO: Do operation for incorrect answer |
| 355 | } |
| 356 | |
| 357 | $answers['plus_mark'] = $plus_mark; |
| 358 | $answers['minus_mark'] = $minus_mark; |
| 359 | |
| 360 | $answers['answers_list'] = array( |
| 361 | 'answer_type' => $question_type, |
| 362 | 'answer_ids' => $given_answers |
| 363 | ); |
| 364 | }else{ |
| 365 | //If not answered, that means users skipped the questions |
| 366 | $answers = array( |
| 367 | 'questionID' => $post_question_id, 'status' => 'skipped', 'has_correct' => 0, //or 0 for false, 'questionSiNo' => 2 |
| 368 | 'plus_mark' => 0, |
| 369 | 'minus_mark' => 0, |
| 370 | 'answers_list' => array() |
| 371 | ); |
| 372 | } |
| 373 | |
| 374 | $answers['question_mark'] = $question_mark; |
| 375 | |
| 376 | if ($is_answer_corrected){ |
| 377 | if (isset($attempt_info['marks_earned'])){ |
| 378 | //If not found |
| 379 | $attempt_info['marks_earned'] = $attempt_info['marks_earned'] + $plus_mark; |
| 380 | }else{ |
| 381 | $attempt_info['marks_earned'] = $plus_mark; |
| 382 | } |
| 383 | }else{ |
| 384 | if ( ! isset($attempt_info['marks_earned'])){ |
| 385 | $attempt_info['marks_earned'] = 0; |
| 386 | } |
| 387 | |
| 388 | //Todo: mark minus if necessary |
| 389 | } |
| 390 | |
| 391 | $attempt_info['answers'][] = $answers; |
| 392 | tutor_utils()->quiz_update_attempt_info($attempt_id, $attempt_info); |
| 393 | |
| 394 | wp_redirect(tutor_utils()->input_old('_wp_http_referer')); |
| 395 | die(); |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * Quiz attempt will be finish here |
| 400 | * |
| 401 | */ |
| 402 | |
| 403 | public function finishing_quiz_attempt(){ |
| 404 | if ( ! isset($_POST['tutor_action']) || $_POST['tutor_action'] !== 'tutor_finish_quiz_attempt' ){ |
| 405 | return; |
| 406 | } |
| 407 | //Checking nonce |
| 408 | tutor_utils()->checking_nonce(); |
| 409 | |
| 410 | if ( ! is_user_logged_in()){ |
| 411 | die('Please sign in to do this operation'); |
| 412 | } |
| 413 | |
| 414 | |
| 415 | global $wpdb; |
| 416 | |
| 417 | $quiz_id = (int) sanitize_text_field($_POST['quiz_id']); |
| 418 | |
| 419 | $is_started_quiz = tutor_utils()->is_started_quiz($quiz_id); |
| 420 | $attempt_id = $is_started_quiz->comment_ID; |
| 421 | |
| 422 | if ($is_started_quiz) { |
| 423 | do_action('tutor_quiz_finished_before', $attempt_id); |
| 424 | |
| 425 | $quiz_attempt_info = tutor_utils()->quiz_attempt_info( $attempt_id ); |
| 426 | $answers = tutor_utils()->avalue_dot('answers', $quiz_attempt_info); |
| 427 | |
| 428 | $total_marks = 0; |
| 429 | if (is_array($answers)){ |
| 430 | $total_marks = array_sum(wp_list_pluck($answers, 'question_mark')); |
| 431 | } |
| 432 | |
| 433 | $quiz_attempt_info['total_marks'] = $total_marks; |
| 434 | $pass_mark_percent = tutor_utils()->get_quiz_option($quiz_id,'passing_grade'); |
| 435 | $quiz_attempt_info['pass_mark_percent'] = $pass_mark_percent; |
| 436 | $quiz_attempt_info['submission_time'] = time(); |
| 437 | |
| 438 | //Updating Attempt Info |
| 439 | tutor_utils()->quiz_update_attempt_info($attempt_id, $quiz_attempt_info); |
| 440 | |
| 441 | $wpdb->update($wpdb->comments, array('comment_approved' => 'quiz_finished'), array('comment_ID' => $attempt_id)); |
| 442 | |
| 443 | do_action('tutor_quiz_finished_after', $attempt_id); |
| 444 | } |
| 445 | |
| 446 | wp_redirect(tutor_utils()->input_old('_wp_http_referer')); |
| 447 | die(); |
| 448 | } |
| 449 | |
| 450 | /** |
| 451 | * Quiz timeout by ajax |
| 452 | */ |
| 453 | public function tutor_quiz_timeout(){ |
| 454 | global $wpdb; |
| 455 | |
| 456 | $quiz_id = (int) sanitize_text_field($_POST['quiz_id']); |
| 457 | |
| 458 | $is_started_quiz = tutor_utils()->is_started_quiz($quiz_id); |
| 459 | $attempt_id = $is_started_quiz->comment_ID; |
| 460 | |
| 461 | if ($is_started_quiz) { |
| 462 | $quiz_attempt_info = tutor_utils()->quiz_attempt_info( $attempt_id ); |
| 463 | $answers = tutor_utils()->avalue_dot('answers', $quiz_attempt_info); |
| 464 | |
| 465 | $total_marks = 0; |
| 466 | if (is_array($answers)){ |
| 467 | $total_marks = array_sum(wp_list_pluck($answers, 'question_mark')); |
| 468 | } |
| 469 | |
| 470 | $quiz_attempt_info['total_marks'] = $total_marks; |
| 471 | $pass_mark_percent = tutor_utils()->get_quiz_option($quiz_id,'passing_grade'); |
| 472 | $quiz_attempt_info['pass_mark_percent'] = $pass_mark_percent; |
| 473 | |
| 474 | //Updating Attempt Info |
| 475 | tutor_utils()->quiz_update_attempt_info($attempt_id, $quiz_attempt_info); |
| 476 | |
| 477 | $wpdb->update($wpdb->comments, array('comment_approved' => 'quiz_timeout'), array('comment_ID' => $attempt_id)); |
| 478 | wp_send_json_success(); |
| 479 | } |
| 480 | |
| 481 | wp_send_json_error(__('Quiz has been timeout already', 'tutor')); |
| 482 | } |
| 483 | |
| 484 | /** |
| 485 | * Review the answer and change individual answer result |
| 486 | */ |
| 487 | |
| 488 | public function review_quiz_answer(){ |
| 489 | $attempt_id = (int) sanitize_text_field($_GET['attempt_id']); |
| 490 | $answer_index = (int) sanitize_text_field($_GET['answer_index']); |
| 491 | $mark_as = sanitize_text_field($_GET['mark_as']); |
| 492 | |
| 493 | $attempt_info = tutor_utils()->quiz_attempt_info($attempt_id); |
| 494 | |
| 495 | $previous_answer = $attempt_info['answers'][$answer_index]; |
| 496 | $previous_correct = tutor_utils()->avalue_dot('has_correct', $previous_answer); |
| 497 | |
| 498 | if ($mark_as === 'correct' && ! $previous_correct ){ |
| 499 | $previous_answer['has_correct'] = 1; |
| 500 | $previous_answer['plus_mark'] = $previous_answer['question_mark']; |
| 501 | $previous_answer['minus_mark'] = 0; |
| 502 | $attempt_info['marks_earned'] = $attempt_info['marks_earned'] + $previous_answer['question_mark']; |
| 503 | |
| 504 | }elseif($mark_as === 'incorrect' && $previous_correct){ |
| 505 | $previous_answer['has_correct'] = 0; |
| 506 | $previous_answer['plus_mark'] = 0; |
| 507 | $previous_answer['minus_mark'] = 0; |
| 508 | $attempt_info['marks_earned'] = $attempt_info['marks_earned'] - $previous_answer['question_mark']; |
| 509 | } |
| 510 | |
| 511 | $attempt_info['answers'][$answer_index] = $previous_answer; |
| 512 | $attempt_info['manual_reviewed'] = time(); |
| 513 | |
| 514 | tutor_utils()->quiz_update_attempt_info($attempt_id, $attempt_info); |
| 515 | |
| 516 | wp_redirect(admin_url("admin.php?page=tutor_quiz_attempts&sub_page=view_attempt&attempt_id=".$attempt_id)); |
| 517 | die(); |
| 518 | } |
| 519 | |
| 520 | } |