urlmanager.lib.php 21 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * This library provides functions for the access_url management.
  5. * Include/require it in your code to use its functionality.
  6. *
  7. * @package chamilo.library
  8. */
  9. /**
  10. * @package chamilo.library
  11. */
  12. class UrlManager
  13. {
  14. /**
  15. * Creates a new url access to Dokeos
  16. *
  17. * @author Julio Montoya <gugli100@gmail.com>,
  18. *
  19. * @param string The URL of the site
  20. * @param string The description of the site
  21. * @param int is active or not
  22. * @param int the user_id of the owner
  23. * @return boolean if success
  24. */
  25. public static function add($url, $description, $active)
  26. {
  27. $tms = time();
  28. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  29. $sql = "INSERT INTO $table_access_url
  30. SET url = '".Database::escape_string($url)."',
  31. description = '".Database::escape_string($description)."',
  32. active = '".Database::escape_string($active)."',
  33. created_by = '".api_get_user_id()."',
  34. tms = FROM_UNIXTIME(".$tms.")";
  35. $result = Database::query($sql);
  36. return $result;
  37. }
  38. /**
  39. * Updates an URL access to Dokeos
  40. * @author Julio Montoya <gugli100@gmail.com>,
  41. *
  42. * @param int The url id
  43. * @param string The description of the site
  44. * @param int is active or not
  45. * @param int the user_id of the owner
  46. * @return boolean if success
  47. */
  48. public static function udpate($url_id, $url, $description, $active)
  49. {
  50. $url_id = intval($url_id);
  51. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  52. $tms = time();
  53. $sql = "UPDATE $table_access_url
  54. SET url = '".Database::escape_string($url)."',
  55. description = '".Database::escape_string($description)."',
  56. active = '".Database::escape_string($active)."',
  57. created_by = '".api_get_user_id()."',
  58. tms = FROM_UNIXTIME(".$tms.")
  59. WHERE id = '$url_id'";
  60. $result = Database::query($sql);
  61. return $result;
  62. }
  63. /**
  64. * Deletes an url
  65. * @author Julio Montoya
  66. * @param int url id
  67. * @return boolean true if success
  68. * */
  69. public static function delete($id)
  70. {
  71. $id = intval($id);
  72. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  73. $sql= "DELETE FROM $table_access_url WHERE id = ".$id;
  74. $result = Database::query($sql);
  75. return $result;
  76. }
  77. /**
  78. *
  79. * */
  80. public static function url_exist($url)
  81. {
  82. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  83. $sql = "SELECT id FROM $table_access_url WHERE url = '".Database::escape_string($url)."' ";
  84. $res = Database::query($sql);
  85. $num = Database::num_rows($res);
  86. return $num;
  87. }
  88. /**
  89. *
  90. * */
  91. public static function url_id_exist($url)
  92. {
  93. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  94. $sql = "SELECT id FROM $table_access_url WHERE id = '".Database::escape_string($url)."' ";
  95. $res = Database::query($sql);
  96. $num = Database::num_rows($res);
  97. return $num;
  98. }
  99. /**
  100. * This function get the quantity of URLs
  101. * @author Julio Montoya
  102. * @return int count of urls
  103. * */
  104. public static function url_count()
  105. {
  106. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  107. $sql = "SELECT count(id) as count_result FROM $table_access_url";
  108. $res = Database::query($sql);
  109. $url = Database::fetch_array($res,'ASSOC');
  110. $result = $url['count_result'];
  111. return $result;
  112. }
  113. /**
  114. * Gets the id, url, description, and active status of ALL URLs
  115. * @author Julio Montoya
  116. * @return array
  117. * */
  118. public static function get_url_data()
  119. {
  120. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  121. $sql = "SELECT id, url, description, active FROM $table_access_url ORDER BY id";
  122. $res = Database::query($sql);
  123. $urls = array ();
  124. while ($url = Database::fetch_array($res)) {
  125. $urls[] = $url;
  126. }
  127. return $urls;
  128. }
  129. /**
  130. * Gets the id, url, description, and active status of ALL URLs
  131. * @author Julio Montoya
  132. * @return array
  133. * */
  134. public static function get_url_data_from_id($url_id)
  135. {
  136. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  137. $sql = "SELECT id, url, description, active FROM $table_access_url WHERE id = ".Database::escape_string($url_id);
  138. $res = Database::query($sql);
  139. $row = Database::fetch_array($res);
  140. return $row;
  141. }
  142. /** Gets the inner join of users and urls table
  143. * @author Julio Montoya
  144. * @param int access url id
  145. * @return array Database::store_result of the result
  146. * */
  147. public static function get_url_rel_user_data($access_url_id='')
  148. {
  149. $where = '';
  150. $table_url_rel_user = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  151. $tbl_user = Database :: get_main_table(TABLE_MAIN_USER);
  152. if (!empty($access_url_id)) {
  153. $where ="WHERE $table_url_rel_user.access_url_id = ".Database::escape_string($access_url_id);
  154. }
  155. $order_clause = api_sort_by_first_name() ? ' ORDER BY firstname, lastname, username' : ' ORDER BY lastname, firstname, username';
  156. $sql="SELECT u.user_id, lastname, firstname, username, access_url_id
  157. FROM $tbl_user u
  158. INNER JOIN $table_url_rel_user
  159. ON $table_url_rel_user.user_id = u.user_id
  160. $where".$order_clause;
  161. $result=Database::query($sql);
  162. $users=Database::store_result($result);
  163. return $users;
  164. }
  165. /** Gets the inner join of access_url and the course table
  166. * @author Julio Montoya
  167. * @param int access url id
  168. * @return array Database::store_result of the result
  169. * */
  170. public static function get_url_rel_course_data($access_url_id='')
  171. {
  172. $where ='';
  173. $table_url_rel_course = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  174. $tbl_course = Database :: get_main_table(TABLE_MAIN_COURSE);
  175. if (!empty($access_url_id))
  176. $where ="WHERE $table_url_rel_course.access_url_id = ".Database::escape_string($access_url_id);
  177. $sql="SELECT course_code, title, access_url_id
  178. FROM $tbl_course u
  179. INNER JOIN $table_url_rel_course
  180. ON $table_url_rel_course.course_code = code
  181. $where
  182. ORDER BY title, code";
  183. $result=Database::query($sql);
  184. $courses=Database::store_result($result);
  185. return $courses;
  186. }
  187. /** Gets the inner join of access_url and the session table
  188. * @author Julio Montoya
  189. * @param int access url id
  190. * @return array Database::store_result of the result
  191. * */
  192. public static function get_url_rel_session_data($access_url_id='')
  193. {
  194. $where ='';
  195. $table_url_rel_session = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  196. $tbl_session = Database :: get_main_table(TABLE_MAIN_SESSION);
  197. if (!empty($access_url_id))
  198. $where ="WHERE $table_url_rel_session.access_url_id = ".Database::escape_string($access_url_id);
  199. $sql="SELECT id, name, access_url_id
  200. FROM $tbl_session u
  201. INNER JOIN $table_url_rel_session
  202. ON $table_url_rel_session.session_id = id
  203. $where
  204. ORDER BY name, id";
  205. $result=Database::query($sql);
  206. $sessions=Database::store_result($result);
  207. return $sessions;
  208. }
  209. /**
  210. * Sets the status of an URL 1 or 0
  211. * @author Julio Montoya
  212. * @param string lock || unlock
  213. * @param int url id
  214. * */
  215. public static function set_url_status($status, $url_id)
  216. {
  217. $url_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  218. if ($status=='lock') {
  219. $status_db='0';
  220. }
  221. if ($status=='unlock') {
  222. $status_db='1';
  223. }
  224. if(($status_db=='1' OR $status_db=='0') AND is_numeric($url_id)) {
  225. $sql="UPDATE $url_table SET active='".Database::escape_string($status_db)."' WHERE id='".Database::escape_string($url_id)."'";
  226. $result = Database::query($sql);
  227. }
  228. }
  229. /**
  230. * Checks the relationship between an URL and a User (return the num_rows)
  231. * @author Julio Montoya
  232. * @param int user id
  233. * @param int url id
  234. * @return boolean true if success
  235. * */
  236. public static function relation_url_user_exist($user_id, $url_id) {
  237. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  238. $sql= "SELECT user_id FROM $table_url_rel_user WHERE access_url_id = ".Database::escape_string($url_id)." AND user_id = ".Database::escape_string($user_id)." ";
  239. $result = Database::query($sql);
  240. $num = Database::num_rows($result);
  241. return $num;
  242. }
  243. /**
  244. * Checks the relationship between an URL and a Course (return the num_rows)
  245. * @author Julio Montoya
  246. * @param int user id
  247. * @param int url id
  248. * @return boolean true if success
  249. * */
  250. public static function relation_url_course_exist($course_id, $url_id)
  251. {
  252. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  253. $sql= "SELECT course_code FROM $table_url_rel_course WHERE access_url_id = ".Database::escape_string($url_id)." AND course_code = '".Database::escape_string($course_id)."'";
  254. $result = Database::query($sql);
  255. $num = Database::num_rows($result);
  256. return $num;
  257. }
  258. /**
  259. * Checks the relationship between an URL and a Session (return the num_rows)
  260. * @author Julio Montoya
  261. * @param int user id
  262. * @param int url id
  263. * @return boolean true if success
  264. * */
  265. public static function relation_url_session_exist($session_id, $url_id) {
  266. $table_url_rel_session= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  267. $session_id = intval($session_id);
  268. $url_id = intval($url_id);
  269. $sql= "SELECT session_id FROM $table_url_rel_session WHERE access_url_id = ".Database::escape_string($url_id)." AND session_id = ".Database::escape_string($session_id);
  270. $result = Database::query($sql);
  271. $num = Database::num_rows($result);
  272. return $num;
  273. }
  274. /**
  275. * Add a group of users into a group of URLs
  276. * @author Julio Montoya
  277. * @param array of user_ids
  278. * @param array of url_ids
  279. * */
  280. public static function add_users_to_urls($user_list, $url_list) {
  281. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  282. $result_array=array();
  283. if (is_array($user_list) && is_array($url_list)){
  284. foreach ($url_list as $url_id) {
  285. foreach ($user_list as $user_id) {
  286. $count = UrlManager::relation_url_user_exist($user_id,$url_id);
  287. if ($count==0) {
  288. $sql = "INSERT INTO $table_url_rel_user
  289. SET user_id = ".Database::escape_string($user_id).", access_url_id = ".Database::escape_string($url_id);
  290. $result = Database::query($sql);
  291. if($result)
  292. $result_array[$url_id][$user_id]=1;
  293. else
  294. $result_array[$url_id][$user_id]=0;
  295. }
  296. }
  297. }
  298. }
  299. return $result_array;
  300. }
  301. /**
  302. * Add a group of courses into a group of URLs
  303. * @author Julio Montoya
  304. * @param array of course ids
  305. * @param array of url_ids
  306. * */
  307. public static function add_courses_to_urls($course_list,$url_list)
  308. {
  309. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  310. $result_array=array();
  311. if (is_array($course_list) && is_array($url_list)){
  312. foreach ($url_list as $url_id) {
  313. foreach ($course_list as $course_code) {
  314. $count = UrlManager::relation_url_course_exist($course_code,$url_id);
  315. if ($count==0) {
  316. $sql = "INSERT INTO $table_url_rel_course
  317. SET course_code = '".Database::escape_string($course_code)."', access_url_id = ".Database::escape_string($url_id);
  318. $result = Database::query($sql);
  319. if($result)
  320. $result_array[$url_id][$course_code]=1;
  321. else
  322. $result_array[$url_id][$course_code]=0;
  323. }
  324. }
  325. }
  326. }
  327. return $result_array;
  328. }
  329. /**
  330. * Add a group of sessions into a group of URLs
  331. * @author Julio Montoya
  332. * @param array of session ids
  333. * @param array of url_ids
  334. * */
  335. public static function add_sessions_to_urls($session_list,$url_list)
  336. {
  337. $table_url_rel_session= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  338. $result_array=array();
  339. if (is_array($session_list) && is_array($url_list)){
  340. foreach ($url_list as $url_id) {
  341. foreach ($session_list as $session_id) {
  342. $count = UrlManager::relation_url_session_exist($session_id,$url_id);
  343. if ($count==0) {
  344. $sql = "INSERT INTO $table_url_rel_session
  345. SET session_id = ".Database::escape_string($session_id).", access_url_id = ".Database::escape_string($url_id);
  346. $result = Database::query($sql);
  347. if($result)
  348. $result_array[$url_id][$session_id]=1;
  349. else
  350. $result_array[$url_id][$session_id]=0;
  351. }
  352. }
  353. }
  354. }
  355. return $result_array;
  356. }
  357. /**
  358. * Add a user into a url
  359. * @author Julio Montoya
  360. * @param user_id
  361. * @param url_id
  362. * @return boolean true if success
  363. * */
  364. public static function add_user_to_url($user_id, $url_id = 1) {
  365. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  366. if (empty($url_id)) $url_id = 1;
  367. $count = UrlManager::relation_url_user_exist($user_id,$url_id);
  368. $result = true;
  369. if (empty($count)) {
  370. $sql = "INSERT INTO $table_url_rel_user (user_id, access_url_id) VALUES ('".Database::escape_string($user_id)."', '".Database::escape_string($url_id)."') ";
  371. $result = Database::query($sql);
  372. }
  373. return $result;
  374. }
  375. public static function add_course_to_url($course_code, $url_id=1)
  376. {
  377. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  378. if (empty($url_id)) $url_id=1;
  379. $count = UrlManager::relation_url_course_exist($course_code,$url_id);
  380. if (empty($count)) {
  381. $sql = "INSERT INTO $table_url_rel_course
  382. SET course_code = '".Database::escape_string($course_code)."', access_url_id = ".Database::escape_string($url_id);
  383. $result = Database::query($sql);
  384. }
  385. return $result;
  386. }
  387. /**
  388. * Inserts a session to a URL (access_url_rel_session table)
  389. * @param int Session ID
  390. * @param int URL ID
  391. * @return bool True on success, false session already exists or insert failed
  392. */
  393. public static function add_session_to_url($session_id, $url_id = 1) {
  394. $table_url_rel_session= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  395. if (empty($url_id)) $url_id=1;
  396. $result = false;
  397. $count = UrlManager::relation_url_session_exist($session_id,$url_id);
  398. $session_id = intval($session_id);
  399. if (empty($count) && !empty($session_id)) {
  400. $url_id = intval($url_id);
  401. $sql = "INSERT INTO $table_url_rel_session
  402. SET session_id = ".Database::escape_string($session_id).", access_url_id = ".Database::escape_string($url_id);
  403. $result = Database::query($sql);
  404. }
  405. return $result;
  406. }
  407. /**
  408. * Deletes an url and user relationship
  409. * @author Julio Montoya
  410. * @param int user id
  411. * @param int url id
  412. * @return boolean true if success
  413. * */
  414. public static function delete_url_rel_user($user_id, $url_id) {
  415. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  416. $result = true;
  417. if (!empty($user_id) && !empty($url_id)) {
  418. $sql= "DELETE FROM $table_url_rel_user WHERE user_id = ".Database::escape_string($user_id)." AND access_url_id = ".Database::escape_string($url_id);
  419. $result = Database::query($sql);
  420. }
  421. return $result;
  422. }
  423. /**
  424. * Deletes an url and course relationship
  425. * @author Julio Montoya
  426. * @param char course code
  427. * @param int url id
  428. * @return boolean true if success
  429. * */
  430. public static function delete_url_rel_course($course_code, $url_id)
  431. {
  432. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  433. $sql= "DELETE FROM $table_url_rel_course WHERE course_code = '".Database::escape_string($course_code)."' AND access_url_id=".Database::escape_string($url_id)." ";
  434. $result = Database::query($sql);
  435. return $result;
  436. }
  437. /**
  438. * Deletes an url and session relationship
  439. * @author Julio Montoya
  440. * @param char course code
  441. * @param int url id
  442. * @return boolean true if success
  443. * */
  444. public static function delete_url_rel_session($session_id, $url_id) {
  445. $table_url_rel_session = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  446. $sql= "DELETE FROM $table_url_rel_session WHERE session_id = ".Database::escape_string($session_id)." AND access_url_id=".Database::escape_string($url_id)." ";
  447. $result = Database::query($sql,'ASSOC');
  448. return $result;
  449. }
  450. /**
  451. * Updates the access_url_rel_user table with a given user list
  452. * @author Julio Montoya
  453. * @param array user list
  454. * @param int access_url_id
  455. * */
  456. public static function update_urls_rel_user($user_list, $access_url_id) {
  457. $table_url_rel_user = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  458. $sql = "SELECT user_id FROM $table_url_rel_user WHERE access_url_id = ".intval($access_url_id);
  459. $result = Database::query($sql);
  460. $existing_users = array();
  461. //Getting all users
  462. while($row = Database::fetch_array($result)){
  463. $existing_users[] = $row['user_id'];
  464. }
  465. //Adding users
  466. $users_added = array();
  467. foreach($user_list as $user_id_to_add) {
  468. if (!in_array($user_id_to_add, $existing_users)) {
  469. $result = UrlManager::add_user_to_url($user_id_to_add, $access_url_id);
  470. if ($result) {
  471. $users_added[] = $user_id_to_add;
  472. }
  473. }
  474. }
  475. $users_deleted = array();
  476. //deleting old users
  477. foreach($existing_users as $user_id_to_delete) {
  478. if (!in_array($user_id_to_delete, $user_list)) {
  479. $result = UrlManager::delete_url_rel_user($user_id_to_delete, $access_url_id);
  480. if ($result) {
  481. $users_deleted[] = $user_id_to_delete;
  482. }
  483. }
  484. }
  485. if (empty($users_added) && empty($users_deleted)) {
  486. return false;
  487. }
  488. return array('users_added' => $users_added, 'users_deleted' => $users_deleted);
  489. }
  490. /**
  491. * Updates the access_url_rel_course table with a given user list
  492. * @author Julio Montoya
  493. * @param array user list
  494. * @param int access_url_id
  495. * */
  496. public static function update_urls_rel_course($course_list,$access_url_id) {
  497. $table_course = Database :: get_main_table(TABLE_MAIN_COURSE);
  498. $table_url_rel_course = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  499. $sql = "SELECT course_code FROM $table_url_rel_course WHERE access_url_id=".intval($access_url_id);
  500. $result = Database::query($sql);
  501. $existing_courses = array();
  502. while($row = Database::fetch_array($result)){
  503. $existing_courses[] = $row['course_code'];
  504. }
  505. //adding courses
  506. foreach($course_list as $course_code) {
  507. if(!in_array($course_code, $existing_courses)) {
  508. UrlManager::add_course_to_url($course_code, $access_url_id);
  509. $course_info = api_get_course_info($course_code);
  510. CourseManager::update_course_ranking($course_info['real_id'], 0, $access_url_id);
  511. }
  512. }
  513. //deleting old courses
  514. foreach($existing_courses as $existing_course) {
  515. if(!in_array($existing_course, $course_list)) {
  516. UrlManager::delete_url_rel_course($existing_course,$access_url_id);
  517. $course_info = api_get_course_info($existing_course);
  518. CourseManager::update_course_ranking($course_info['real_id'], 0, $access_url_id);
  519. }
  520. }
  521. }
  522. /**
  523. * Updates the access_url_rel_session table with a given user list
  524. * @author Julio Montoya
  525. * @param array user list
  526. * @param int access_url_id
  527. * */
  528. public static function update_urls_rel_session($session_list,$access_url_id) {
  529. $table_session = Database :: get_main_table(TABLE_MAIN_SESSION);
  530. $table_url_rel_session = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  531. $sql = "SELECT session_id FROM $table_url_rel_session WHERE access_url_id=".Database::escape_string($access_url_id);
  532. $result = Database::query($sql);
  533. $existing_sessions = array();
  534. while($row = Database::fetch_array($result)){
  535. $existing_sessions[] = $row['session_id'];
  536. }
  537. //adding users
  538. foreach($session_list as $session) {
  539. if(!in_array($session, $existing_sessions)) {
  540. if (!empty($session) && !empty($access_url_id)) {
  541. UrlManager::add_session_to_url($session, $access_url_id);
  542. }
  543. }
  544. }
  545. //deleting old users
  546. foreach($existing_sessions as $existing_session) {
  547. if(!in_array($existing_session, $session_list)) {
  548. if (!empty($existing_session) && !empty($access_url_id)) {
  549. UrlManager::delete_url_rel_session($existing_session,$access_url_id);
  550. }
  551. }
  552. }
  553. }
  554. public static function get_access_url_from_user($user_id) {
  555. $table_url_rel_user = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  556. $table_url = Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  557. $sql = "SELECT url, access_url_id FROM $table_url_rel_user url_rel_user INNER JOIN $table_url u
  558. ON (url_rel_user.access_url_id = u.id)
  559. WHERE user_id = ".Database::escape_string($user_id);
  560. $result = Database::query($sql);
  561. $url_list = Database::store_result($result,'ASSOC');
  562. return $url_list;
  563. }
  564. public static function get_access_url_from_session($session_id) {
  565. $table_url_rel_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  566. $table_url = Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  567. $sql = "SELECT url, access_url_id FROM $table_url_rel_session url_rel_session INNER JOIN $table_url u
  568. ON (url_rel_session.access_url_id = u.id)
  569. WHERE session_id = ".Database::escape_string($session_id);
  570. $result = Database::query($sql);
  571. $url_list = Database::store_result($result);
  572. return $url_list;
  573. }
  574. /**
  575. *
  576. * */
  577. public static function get_url_id($url) {
  578. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  579. $sql = "SELECT id FROM $table_access_url WHERE url = '".Database::escape_string($url)."'";
  580. $result = Database::query($sql);
  581. $access_url_id = Database::result($result, 0, 0);
  582. return $access_url_id;
  583. }
  584. }