exercise.ajax.php 19 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * Responses to AJAX calls
  5. */
  6. require_once '../../exercice/exercise.class.php';
  7. require_once '../../exercice/question.class.php';
  8. require_once '../../exercice/answer.class.php';
  9. require_once '../global.inc.php';
  10. require_once '../../exercice/exercise.lib.php';
  11. api_protect_course_script(true);
  12. $action = $_REQUEST['a'];
  13. $course_id = api_get_course_int_id();
  14. if ($debug) {
  15. error_log("$action ajax call");
  16. }
  17. $session_id = isset($_REQUEST['session_id']) ? intval($_REQUEST['session_id']) : api_get_session_id();
  18. $course_code = isset($_REQUEST['cidReq']) ? $_REQUEST['cidReq'] : api_get_course_id();
  19. switch ($action) {
  20. case 'get_live_stats':
  21. if (!api_is_allowed_to_edit(null, true)) {
  22. break;
  23. }
  24. // 1. Setting variables needed by jqgrid
  25. $action = $_GET['a'];
  26. $exercise_id = intval($_GET['exercise_id']);
  27. $page = intval($_REQUEST['page']); //page
  28. $limit = intval($_REQUEST['rows']); //quantity of rows
  29. $sidx = $_REQUEST['sidx']; //index to filter
  30. $sord = $_REQUEST['sord']; //asc or desc
  31. if (!in_array($sord, array('asc','desc'))) {
  32. $sord = 'desc';
  33. }
  34. // get index row - i.e. user click to sort $sord = $_GET['sord'];
  35. // get the direction
  36. if (!$sidx) {
  37. $sidx = 1;
  38. }
  39. $track_exercise = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
  40. $user_table = Database::get_main_table(TABLE_MAIN_USER);
  41. $track_attempt = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
  42. $minutes = intval($_REQUEST['minutes']);
  43. $now = time() - 60 * $minutes;
  44. $now = api_get_utc_datetime($now);
  45. $where_condition = " orig_lp_id = 0 AND exe_exo_id = $exercise_id AND start_date > '$now' ";
  46. $sql = "SELECT COUNT(DISTINCT exe_id) FROM $track_exercise WHERE $where_condition ";
  47. $result = Database::query($sql);
  48. $count = Database::fetch_row($result);
  49. $count = $count[0];
  50. //3. Calculating first, end, etc
  51. $total_pages = 0;
  52. if ($count > 0) {
  53. if (!empty($limit)) {
  54. $total_pages = ceil($count/$limit);
  55. }
  56. }
  57. if ($page > $total_pages) {
  58. $page = $total_pages;
  59. }
  60. $start = $limit * $page - $limit;
  61. if ($start < 0) {
  62. $start = 0;
  63. }
  64. $sql = "SELECT
  65. exe_id,
  66. exe_user_id,
  67. firstname,
  68. lastname,
  69. aa.status,
  70. start_date,
  71. exe_result,
  72. exe_weighting,
  73. exe_result/exe_weighting as score,
  74. exe_duration,
  75. questions_to_check,
  76. orig_lp_id
  77. FROM $user_table u
  78. INNER JOIN (
  79. SELECT
  80. t.exe_id,
  81. t.exe_user_id,
  82. status,
  83. start_date,
  84. exe_result,
  85. exe_weighting,
  86. exe_result/exe_weighting as score,
  87. exe_duration,
  88. questions_to_check,
  89. orig_lp_id
  90. FROM $track_exercise t
  91. LEFT JOIN $track_attempt a
  92. ON (a.exe_id = t.exe_id AND t.exe_user_id = a.user_id )
  93. WHERE t.status = 'incomplete' AND $where_condition
  94. GROUP BY exe_user_id
  95. ) as aa
  96. ON aa.exe_user_id = user_id
  97. ORDER BY $sidx $sord
  98. LIMIT $start, $limit";
  99. $result = Database::query($sql);
  100. $results = array();
  101. while ($row = Database::fetch_array($result, 'ASSOC')) {
  102. $results[] = $row;
  103. }
  104. $oExe = new exercise();
  105. $oExe->read($exercise_id);
  106. $response = new stdClass();
  107. $response->page = $page;
  108. $response->total = $total_pages;
  109. $response->records = $count;
  110. $i=0;
  111. if (!empty($results)) {
  112. foreach ($results as $row) {
  113. $sql = "SELECT SUM(count_question_id) as count_question_id
  114. FROM (
  115. SELECT 1 as count_question_id
  116. FROM $track_attempt a
  117. WHERE
  118. user_id = {$row['exe_user_id']} AND
  119. exe_id = {$row['exe_id']}
  120. GROUP by question_id
  121. ) as count_table";
  122. $result_count = Database::query($sql);
  123. $count_questions = Database::fetch_array($result_count,'ASSOC');
  124. $count_questions = $count_questions['count_question_id'];
  125. $row['count_questions'] = $count_questions;
  126. $response->rows[$i]['id'] = $row['exe_id'];
  127. $remaining = strtotime($row['start_date'])+($oExe->expired_time*60) - strtotime(api_get_utc_datetime(time()));
  128. $h = floor($remaining/3600);
  129. $m = floor(($remaining - ($h*3600))/60);
  130. $s = ($remaining - ($h*3600) - ($m*60));
  131. $array = array(
  132. $row['firstname'],
  133. $row['lastname'],
  134. api_format_date($row['start_date'], DATE_TIME_FORMAT_LONG).' ['.($h>0?$h.':':'').sprintf("%02d",$m).':'.sprintf("%02d",$s).']',
  135. $row['count_questions'],
  136. round($row['score']*100).'%'
  137. );
  138. $response->rows[$i]['cell'] = $array;
  139. $i++;
  140. }
  141. }
  142. echo json_encode($response);
  143. break;
  144. case 'update_exercise_list_order':
  145. if (api_is_allowed_to_edit(null, true)) {
  146. $new_list = $_REQUEST['exercise_list'];
  147. $table = Database::get_course_table(TABLE_QUIZ_ORDER);
  148. $counter = 1;
  149. //Drop all
  150. Database::query("DELETE FROM $table WHERE session_id = $session_id AND c_id = $course_id");
  151. //Insert all
  152. foreach ($new_list as $new_order_id) {
  153. Database::insert(
  154. $table,
  155. array(
  156. 'exercise_order' => $counter,
  157. 'session_id' => $session_id,
  158. 'exercise_id' => intval($new_order_id),
  159. 'c_id' => $course_id
  160. )
  161. );
  162. $counter++;
  163. }
  164. Display::display_confirmation_message(get_lang('Saved'));
  165. }
  166. break;
  167. case 'update_question_order':
  168. $course_info = api_get_course_info($course_code);
  169. $course_id = $course_info['real_id'];
  170. $exercise_id = isset($_REQUEST['exercise_id']) ? $_REQUEST['exercise_id'] : null;
  171. if (empty($exercise_id)) {
  172. return Display::display_error_message(get_lang('Error'));
  173. }
  174. if (api_is_allowed_to_edit(null, true)) {
  175. $new_question_list = $_POST['question_id_list'];
  176. $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
  177. $counter = 1;
  178. foreach ($new_question_list as $new_order_id) {
  179. Database::update(
  180. $TBL_QUESTIONS,
  181. array('question_order' => $counter),
  182. array('question_id = ? AND c_id = ? AND exercice_id = ? ' => array(intval($new_order_id), $course_id, $exercise_id)))
  183. ;
  184. $counter++;
  185. }
  186. Display::display_confirmation_message(get_lang('Saved'));
  187. }
  188. break;
  189. case 'add_question_to_reminder':
  190. /** @var Exercise $objExercise */
  191. $objExercise = $_SESSION['objExercise'];
  192. if (empty($objExercise)) {
  193. echo 0;
  194. exit;
  195. } else {
  196. $objExercise->edit_question_to_remind(
  197. $_REQUEST['exe_id'],
  198. $_REQUEST['question_id'],
  199. $_REQUEST['action']
  200. );
  201. }
  202. break;
  203. case 'save_exercise_by_now':
  204. $course_info = api_get_course_info($course_code);
  205. $course_id = $course_info['real_id'];
  206. // Use have permissions?
  207. if (api_is_allowed_to_session_edit()) {
  208. // "all" or "simple" strings means that there's one or all questions exercise type
  209. $type = isset($_REQUEST['type']) ? $_REQUEST['type'] : null;
  210. // Questions choices.
  211. $choice = isset($_REQUEST['choice']) ? $_REQUEST['choice'] : null;
  212. // Hot spot coordinates from all questions.
  213. $hot_spot_coordinates = isset($_REQUEST['hotspot']) ? $_REQUEST['hotspot'] : null;
  214. // There is a reminder?
  215. $remind_list = isset($_REQUEST['remind_list']) && !empty($_REQUEST['remind_list']) ? array_keys($_REQUEST['remind_list']) : null;
  216. // Needed in manage_answer.
  217. $learnpath_id = isset($_REQUEST['learnpath_id']) ? intval($_REQUEST['learnpath_id']) : 0;
  218. $learnpath_item_id = isset($_REQUEST['learnpath_item_id']) ? intval($_REQUEST['learnpath_item_id']) : 0;
  219. // Attempt id.
  220. $exe_id = $_REQUEST['exe_id'];
  221. if ($debug) {
  222. error_log("exe_id = $exe_id");
  223. error_log("type = $type");
  224. error_log("choice = ".print_r($choice, 1)." ");
  225. error_log("hot_spot_coordinates = ".print_r($hot_spot_coordinates, 1));
  226. error_log("remind_list = ".print_r($remind_list, 1));
  227. }
  228. // Exercise information.
  229. /** @var Exercise $objExercise */
  230. $objExercise = isset($_SESSION['objExercise']) ? $_SESSION['objExercise'] : null;
  231. // Question info.
  232. $question_id = isset($_REQUEST['question_id']) ? intval($_REQUEST['question_id']) : null;
  233. $question_list = $_SESSION['questionList'];
  234. // If exercise or question is not set then exit.
  235. if (empty($question_list) || empty($objExercise)) {
  236. echo 'error';
  237. if ($debug) {
  238. if (empty($question_list)) {
  239. error_log("question_list is empty");
  240. }
  241. if (empty($objExercise)) {
  242. error_log("objExercise is empty");
  243. }
  244. }
  245. exit;
  246. }
  247. // Getting information of the current exercise.
  248. $exercise_stat_info = $objExercise->get_stat_track_exercise_info_by_exe_id($exe_id);
  249. $exercise_id = $exercise_stat_info['exe_exo_id'];
  250. $attempt_list = array();
  251. // First time here we create an attempt (getting the exe_id).
  252. if (empty($exercise_stat_info)) {
  253. } else {
  254. // We know the user we get the exe_id.
  255. $exe_id = $exercise_stat_info['exe_id'];
  256. $total_score = $exercise_stat_info['exe_result'];
  257. //Getting the list of attempts
  258. $attempt_list = get_all_exercise_event_by_exe_id($exe_id);
  259. }
  260. // Updating Reminder algorythm.
  261. if ($objExercise->type == ONE_PER_PAGE) {
  262. $bd_reminder_list = explode(',', $exercise_stat_info['questions_to_check']);
  263. if (empty($remind_list)) {
  264. $remind_list = $bd_reminder_list;
  265. $new_list = array();
  266. foreach ($bd_reminder_list as $item) {
  267. if ($item != $question_id) {
  268. $new_list[] = $item;
  269. }
  270. }
  271. $remind_list = $new_list;
  272. } else {
  273. if (isset($remind_list[0])) {
  274. if (!in_array($remind_list[0], $bd_reminder_list)) {
  275. array_push($bd_reminder_list, $remind_list[0]);
  276. }
  277. $remind_list = $bd_reminder_list;
  278. }
  279. }
  280. }
  281. // No exe id? Can't save answer.
  282. if (empty($exe_id)) {
  283. // Fires an error.
  284. echo 'error';
  285. if ($debug) {
  286. error_log("exe_id is empty");
  287. }
  288. exit;
  289. } else {
  290. $_SESSION['exe_id'] = $exe_id;
  291. }
  292. // Getting the total weight if the request is simple
  293. $total_weight = 0;
  294. if ($type == 'simple') {
  295. foreach ($question_list as $my_question_id) {
  296. $objQuestionTmp = Question::read($my_question_id, $course_id);
  297. $total_weight += $objQuestionTmp->selectWeighting();
  298. }
  299. }
  300. unset($objQuestionTmp);
  301. // Looping the question list
  302. foreach ($question_list as $my_question_id) {
  303. if ($debug) {
  304. error_log("Saving question_id = $my_question_id ");
  305. }
  306. if ($type == 'simple' && $question_id != $my_question_id) {
  307. continue;
  308. }
  309. $my_choice = isset($choice[$my_question_id]) ?
  310. $choice[$my_question_id] : null;
  311. if ($debug) {
  312. error_log("my_choice = ".print_r($my_choice, 1)."");
  313. }
  314. // Creates a temporary Question object
  315. $objQuestionTmp = Question::read($my_question_id, $course_id);
  316. // Getting free choice data.
  317. if ($objQuestionTmp->type == FREE_ANSWER && $type == 'all') {
  318. $my_choice = isset($_REQUEST['free_choice'][$my_question_id]) && !empty($_REQUEST['free_choice'][$my_question_id]) ? $_REQUEST['free_choice'][$my_question_id]: null;
  319. }
  320. if ($type == 'all') {
  321. $total_weight += $objQuestionTmp->selectWeighting();
  322. }
  323. // This variable came from exercise_submit_modal.php.
  324. $hotspot_delineation_result = null;
  325. if (isset($_SESSION['hotspot_delineation_result']) && isset($_SESSION['hotspot_delineation_result'][$objExercise->selectId()])) {
  326. $hotspot_delineation_result = $_SESSION['hotspot_delineation_result'][$objExercise->selectId()][$my_question_id];
  327. }
  328. if ($type == 'simple') {
  329. // Getting old attempt in order to decrees the total score.
  330. $old_result = $objExercise->manage_answer(
  331. $exe_id,
  332. $my_question_id,
  333. null,
  334. 'exercise_show',
  335. array(),
  336. false,
  337. true,
  338. false,
  339. $objExercise->selectPropagateNeg(),
  340. array()
  341. );
  342. // Removing old score.
  343. $total_score = $total_score - $old_result['score'];
  344. }
  345. // Deleting old attempt
  346. if (isset($attempt_list) && !empty($attempt_list[$my_question_id])) {
  347. if ($debug) {
  348. error_log("delete_attempt exe_id : $exe_id, my_question_id: $my_question_id");
  349. }
  350. delete_attempt($exe_id, api_get_user_id(), $course_code, $session_id, $my_question_id);
  351. if ($objQuestionTmp->type == HOT_SPOT) {
  352. delete_attempt_hotspot($exe_id, api_get_user_id(), $course_code, $session_id, $my_question_id);
  353. }
  354. if (isset($attempt_list[$my_question_id]) && isset($attempt_list[$my_question_id]['marks'])) {
  355. $total_score -= $attempt_list[$my_question_id]['marks'];
  356. }
  357. }
  358. // We're inside *one* question. Go through each possible answer for this question
  359. $result = $objExercise->manage_answer(
  360. $exe_id,
  361. $my_question_id,
  362. $my_choice,
  363. 'exercise_result',
  364. $hot_spot_coordinates,
  365. true,
  366. false,
  367. false,
  368. $objExercise->selectPropagateNeg(),
  369. $hotspot_delineation_result
  370. );
  371. // Adding the new score.
  372. $total_score += $result['score'];
  373. if ($debug) {
  374. error_log("total_score: $total_score ");
  375. error_log("total_weight: $total_weight ");
  376. }
  377. $duration = 0;
  378. $now = time();
  379. if ($type == 'all') {
  380. $exercise_stat_info = $objExercise->get_stat_track_exercise_info_by_exe_id($exe_id);
  381. }
  382. $key = get_time_control_key($exercise_id, $exercise_stat_info['orig_lp_id'], $exercise_stat_info['orig_lp_item_id']);
  383. if (isset($_SESSION['duration_time'][$key]) && !empty($_SESSION['duration_time'][$key])) {
  384. $duration = $now - $_SESSION['duration_time'][$key];
  385. if (!empty($exercise_stat_info['exe_duration'])) {
  386. $duration += $exercise_stat_info['exe_duration'];
  387. }
  388. $duration = intval($duration);
  389. } else {
  390. if (!empty($exercise_stat_info['exe_duration'])) {
  391. $duration = $exercise_stat_info['exe_duration'];
  392. }
  393. }
  394. $_SESSION['duration_time'][$key] = time();
  395. update_event_exercice(
  396. $exe_id,
  397. $objExercise->selectId(),
  398. $total_score,
  399. $total_weight,
  400. $session_id,
  401. $exercise_stat_info['orig_lp_id'],
  402. $exercise_stat_info['orig_lp_item_id'],
  403. $exercise_stat_info['orig_lp_item_view_id'],
  404. $duration,
  405. $question_list,
  406. 'incomplete',
  407. $remind_list
  408. );
  409. // Destruction of the Question object
  410. unset($objQuestionTmp);
  411. if ($debug) {
  412. error_log(" -- end question -- ");
  413. }
  414. }
  415. if ($debug) {
  416. error_log(" ------ end ajax call ------- ");
  417. }
  418. }
  419. if ($objExercise->type == ONE_PER_PAGE) {
  420. echo 'one_per_page';
  421. exit;
  422. }
  423. echo 'ok';
  424. break;
  425. default:
  426. echo '';
  427. }
  428. exit;