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