sessionmanager.lib.php 69 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682
  1. <?php //$id: $
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * This is the session library for Chamilo.
  5. * All main sessions functions should be placed here.
  6. * @package chamilo.library
  7. */
  8. /**
  9. * Code
  10. */
  11. /* LIBRARIES */
  12. /**
  13. * This class provides methods for sessions management.
  14. * Include/require it in your code to use its features.
  15. *
  16. * @package chamilo.library
  17. */
  18. class SessionManager {
  19. private function __construct() {
  20. }
  21. /**
  22. * Fetches a session from the database
  23. * @param int Session ID
  24. * @return array Session details (id, id_coach, name, nbr_courses, nbr_users, nbr_classes, date_start, date_end, nb_days_access_before_beginning,nb_days_access_after_end, session_admin_id)
  25. */
  26. public static function fetch($id) {
  27. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  28. if ($id != strval(intval($id))) { return array(); }
  29. $s = "SELECT * FROM $t WHERE id = $id";
  30. $r = Database::query($s);
  31. if (Database::num_rows($r) != 1) { return array(); }
  32. return Database::fetch_array($r,'ASSOC');
  33. }
  34. /**
  35. * Create a session
  36. * @author Carlos Vargas from existing code
  37. * @param string name
  38. * @param integer Start year (yyyy)
  39. * @param integer Start month (mm)
  40. * @param integer Start day (dd)
  41. * @param integer End year (yyyy)
  42. * @param integer End month (mm)
  43. * @param integer End day (dd)
  44. * @param integer Number of days that the coach can access the session before the start date
  45. * @param integer Number of days that the coach can access the session after the end date
  46. * @param integer If 1, means there are no date limits
  47. * @param mixed If integer, this is the session coach id, if string, the coach ID will be looked for from the user table
  48. * @param integer ID of the session category in which this session is registered
  49. * @param integer Visibility after end date (0 = read-only, 1 = invisible, 2 = accessible)
  50. * @param string Start limit = true if the start date has to be considered
  51. * @param string End limit = true if the end date has to be considered
  52. * @todo use an array to replace all this parameters or use the model.lib.php ...
  53. * @return mixed Session ID on success, error message otherwise
  54. **/
  55. public static function create_session($sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end,$sday_end,$snb_days_acess_before,$snb_days_acess_after, $nolimit,$coach_username, $id_session_category,$id_visibility, $start_limit = true, $end_limit = true, $fix_name = false) {
  56. $name = Database::escape_string(trim($sname));
  57. $year_start = intval($syear_start);
  58. $month_start = intval($smonth_start);
  59. $day_start = intval($sday_start);
  60. $year_end = intval($syear_end);
  61. $month_end = intval($smonth_end);
  62. $day_end = intval($sday_end);
  63. $nb_days_acess_before = intval($snb_days_acess_before);
  64. $nb_days_acess_after = intval($snb_days_acess_after);
  65. $id_session_category = intval($id_session_category);
  66. $id_visibility = intval($id_visibility);
  67. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  68. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  69. if(is_int($coach_username)) {
  70. $id_coach = $coach_username;
  71. } else {
  72. $sql = 'SELECT user_id FROM '.$tbl_user.' WHERE username="'.Database::escape_string($coach_username).'"';
  73. $rs = Database::query($sql);
  74. $id_coach = Database::result($rs,0,'user_id');
  75. }
  76. if (empty($nolimit)) {
  77. $date_start ="$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  78. $date_end ="$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  79. } else {
  80. $id_visibility = 1; // by default session visibility is read only
  81. $date_start ="0000-00-00";
  82. $date_end ="0000-00-00";
  83. }
  84. if (empty($end_limit)) {
  85. $date_end ="0000-00-00";
  86. $id_visibility = 1; // by default session visibility is read only
  87. }
  88. if (empty($start_limit)) {
  89. $date_start ="0000-00-00";
  90. }
  91. if (empty($name)) {
  92. $msg=get_lang('SessionNameIsRequired');
  93. return $msg;
  94. } elseif (empty($coach_username)) {
  95. $msg=get_lang('CoachIsRequired');
  96. return $msg;
  97. } elseif (!empty($start_limit) && empty($nolimit) && (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start))) {
  98. $msg=get_lang('InvalidStartDate');
  99. return $msg;
  100. } elseif (!empty($end_limit) && empty($nolimit) && (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end))) {
  101. $msg=get_lang('InvalidEndDate');
  102. return $msg;
  103. } elseif(!empty($start_limit) && !empty($end_limit) && empty($nolimit) && $date_start >= $date_end) {
  104. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  105. return $msg;
  106. } else {
  107. $ready_to_create = false;
  108. if ($fix_name) {
  109. $name = self::generate_nice_next_session_name($name);
  110. if ($name) {
  111. $ready_to_create = true;
  112. } else {
  113. $msg=get_lang('SessionNameAlreadyExists');
  114. return $msg;
  115. }
  116. } else {
  117. $rs = Database::query("SELECT 1 FROM $tbl_session WHERE name='".$name."'");
  118. if (Database::num_rows($rs)) {
  119. $msg=get_lang('SessionNameAlreadyExists');
  120. return $msg;
  121. }
  122. $ready_to_create = true;
  123. }
  124. if ($ready_to_create) {
  125. $sql_insert = "INSERT INTO $tbl_session(name,date_start,date_end,id_coach,session_admin_id, nb_days_access_before_beginning, nb_days_access_after_end, session_category_id,visibility)
  126. VALUES('".$name."','$date_start','$date_end','$id_coach',".api_get_user_id().",".$nb_days_acess_before.", ".$nb_days_acess_after.", ".$id_session_category.", ".$id_visibility.")";
  127. Database::query($sql_insert);
  128. $session_id = Database::insert_id();
  129. //Adding to the correct URL
  130. require_once api_get_path(LIBRARY_PATH).'urlmanager.lib.php';
  131. $tbl_user_rel_access_url= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  132. $access_url_id = api_get_current_access_url_id();
  133. UrlManager::add_session_to_url($session_id,$access_url_id);
  134. // add event to system log
  135. $user_id = api_get_user_id();
  136. event_system(LOG_SESSION_CREATE, LOG_SESSION_ID, $session_id, api_get_utc_datetime(), $user_id);
  137. return $session_id;
  138. }
  139. }
  140. }
  141. function session_name_exists($session_name) {
  142. $session_name = Database::escape_string($session_name);
  143. $result = Database::fetch_array(Database::query("SELECT COUNT(*) as count FROM ".Database::get_main_table(TABLE_MAIN_SESSION)." WHERE name = '$session_name' "));
  144. return $result['count'] > 0;
  145. }
  146. function get_count_admin() {
  147. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  148. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  149. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  150. $where = '';
  151. $user_id = api_get_user_id();
  152. if (api_is_session_admin()==true) {
  153. $where.=" WHERE s.session_admin_id = $user_id ";
  154. }
  155. $query_rows = "SELECT count(*) as total_rows
  156. FROM $tbl_session s
  157. LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
  158. INNER JOIN $tbl_user u ON s.id_coach = u.user_id
  159. $where ";
  160. global $_configuration;
  161. if ($_configuration['multiple_access_urls']) {
  162. $table_access_url_rel_session= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  163. $access_url_id = api_get_current_access_url_id();
  164. if ($access_url_id != -1) {
  165. $query_rows = "SELECT count(*) as total_rows
  166. FROM $tbl_session s
  167. LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
  168. INNER JOIN $tbl_user u ON s.id_coach = u.user_id
  169. INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
  170. $where ";
  171. }
  172. }
  173. $result_rows = Database::query($query_rows);
  174. $recorset = Database::fetch_array($result_rows);
  175. $num = $recorset['total_rows'];
  176. return $num;
  177. }
  178. /**
  179. * Gets the admin session list callback of the admin/session_list.php page
  180. * @param array order and limit keys
  181. */
  182. function get_sessions_admin($options) {
  183. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  184. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  185. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  186. $where = 'WHERE 1=1 ';
  187. $user_id = api_get_user_id();
  188. if (api_is_session_admin()==true) {
  189. $where.=" AND s.session_admin_id = $user_id ";
  190. }
  191. if (!empty($options['where'])) {
  192. $where .= ' AND '.$options['where'];
  193. }
  194. $coach_name = " CONCAT (u.lastname , ' ', u.firstname) as coach_name ";
  195. if (api_is_western_name_order()) {
  196. $coach_name = " CONCAT (u.firstname, ' ', u.lastname) as coach_name ";
  197. }
  198. $query = "SELECT s.name, nbr_courses, s.date_start, s.date_end, $coach_name , sc.name as category_name, s.visibility, u.user_id, s.id ".
  199. " FROM $tbl_session s ".
  200. " LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id ".
  201. " INNER JOIN $tbl_user u ON s.id_coach = u.user_id ".
  202. $where;
  203. if ($_configuration['multiple_access_urls']) {
  204. $table_access_url_rel_session= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  205. $access_url_id = api_get_current_access_url_id();
  206. if ($access_url_id != -1) {
  207. $where.= " AND ar.access_url_id = $access_url_id ";
  208. $query = "SELECT s.id, s.name, s.nbr_courses, s.date_start, s.date_end, u.firstname, u.lastname , sc.name as category_name , s.visibility, u.user_id
  209. FROM $tbl_session s
  210. LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
  211. INNER JOIN $tbl_user u ON s.id_coach = u.user_id
  212. INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
  213. $where";
  214. }
  215. }
  216. $query .= "ORDER BY ".$options['order']." LIMIT ".$options['limit'];
  217. $result = Database::query($query);
  218. $formatted_sessions = array();
  219. if (Database::num_rows($result)) {
  220. $sessions = Database::store_result($result);
  221. foreach ($sessions as $session) {
  222. $session['name'] = Display::url($session['name'], "resume_session.php?id_session=".$session['id']);
  223. $session['coach_name'] = Display::url($session['coach_name'], "user_information.php?user_id=".$session['user_id']);
  224. if ($session['date_start'] == '0000-00-00') {
  225. $session['date_start'] = '';
  226. }
  227. if ($session['date_end'] == '0000-00-00') {
  228. $session['date_end'] = '';
  229. }
  230. switch ($session['visibility']) {
  231. case SESSION_VISIBLE_READ_ONLY: //1
  232. $session['visibility'] = get_lang('ReadOnly');
  233. break;
  234. case SESSION_VISIBLE: //2
  235. $session['visibility'] = get_lang('Visible');
  236. break;
  237. case SESSION_INVISIBLE: //3
  238. $session['visibility'] = api_ucfirst(get_lang('Invisible'));
  239. break;
  240. }
  241. $formatted_sessions[] = $session;
  242. }
  243. }
  244. return $formatted_sessions;
  245. }
  246. /**
  247. * Creates a new course code based in given code
  248. *
  249. * @param string wanted code
  250. * <code>
  251. * $wanted_code = 'curse' if there are in the DB codes like curse1 curse2 the function will return: course3
  252. * if the course code doest not exist in the DB the same course code will be returned
  253. * </code>
  254. * @return string wanted unused code
  255. */
  256. function generate_nice_next_session_name($session_name) {
  257. $session_name_ok = !self::session_name_exists($session_name);
  258. if (!$session_name_ok) {
  259. $table = Database::get_main_table(TABLE_MAIN_SESSION);
  260. $session_name = Database::escape_string($session_name);
  261. $sql = "SELECT count(*) as count FROM $table WHERE name LIKE '$session_name%'";
  262. $result = Database::query($sql);
  263. if (Database::num_rows($result) > 0 ) {
  264. $row = Database::fetch_array($result);
  265. $count = $row['count'] + 1;
  266. $session_name = $session_name.'_'.$count;
  267. $result = self::session_name_exists($session_name);
  268. if (!$result) {
  269. return $session_name;
  270. }
  271. }
  272. return false;
  273. }
  274. return $session_name;
  275. }
  276. /**
  277. * Edit a session
  278. * @author Carlos Vargas from existing code
  279. * @param integer id
  280. * @param string name
  281. * @param integer year_start
  282. * @param integer month_start
  283. * @param integer day_start
  284. * @param integer year_end
  285. * @param integer month_end
  286. * @param integer day_end
  287. * @param integer nb_days_acess_before
  288. * @param integer nb_days_acess_after
  289. * @param integer nolimit
  290. * @param integer id_coach
  291. * @param integer id_session_category
  292. * @return $id;
  293. * The parameter id is a primary key
  294. **/
  295. public static function edit_session ($id,$name,$year_start,$month_start,$day_start,$year_end,$month_end,$day_end,$nb_days_acess_before,$nb_days_acess_after,$nolimit,$id_coach, $id_session_category, $id_visibility, $start_limit = true, $end_limit = true) {
  296. global $_user;
  297. $name=trim(stripslashes($name));
  298. $year_start=intval($year_start);
  299. $month_start=intval($month_start);
  300. $day_start=intval($day_start);
  301. $year_end=intval($year_end);
  302. $month_end=intval($month_end);
  303. $day_end=intval($day_end);
  304. $id_coach= intval($id_coach);
  305. $nb_days_acess_before= intval($nb_days_acess_before);
  306. $nb_days_acess_after = intval($nb_days_acess_after);
  307. $id_session_category = intval($id_session_category);
  308. $id_visibility = intval($id_visibility);
  309. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  310. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  311. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  312. if (empty($nolimit)) {
  313. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  314. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  315. } else {
  316. $date_start = "0000-00-00";
  317. $date_end = "0000-00-00";
  318. $id_visibility = 1;//force read only
  319. }
  320. if (!empty($no_end_limit)) {
  321. $date_end = "0000-00-00";
  322. }
  323. if (empty($end_limit)) {
  324. $date_end ="0000-00-00";
  325. $id_visibility = 1;//force read only
  326. }
  327. if (empty($start_limit)) {
  328. $date_start ="0000-00-00";
  329. }
  330. if (empty($name)) {
  331. $msg=get_lang('SessionNameIsRequired');
  332. return $msg;
  333. } elseif (empty($id_coach)) {
  334. $msg=get_lang('CoachIsRequired');
  335. return $msg;
  336. } elseif (!empty($start_limit) && empty($nolimit) && (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start))) {
  337. $msg=get_lang('InvalidStartDate');
  338. return $msg;
  339. } elseif (!empty($end_limit) && empty($nolimit) && (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end))) {
  340. $msg=get_lang('InvalidEndDate');
  341. return $msg;
  342. } elseif (!empty($start_limit) && !empty($end_limit) && empty($nolimit) && $date_start >= $date_end) {
  343. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  344. return $msg;
  345. } else {
  346. $rs = Database::query("SELECT id FROM $tbl_session WHERE name='".Database::escape_string($name)."'");
  347. $exists = false;
  348. while ($row = Database::fetch_array($rs)) {
  349. if($row['id']!=$id)
  350. $exists = true;
  351. }
  352. if ($exists) {
  353. $msg=get_lang('SessionNameAlreadyExists');
  354. return $msg;
  355. } else {
  356. $sql="UPDATE $tbl_session " .
  357. "SET name='".Database::escape_string($name)."',
  358. date_start='".$date_start."',
  359. date_end='".$date_end."',
  360. id_coach='".$id_coach."',
  361. nb_days_access_before_beginning = ".$nb_days_acess_before.",
  362. nb_days_access_after_end = ".$nb_days_acess_after.",
  363. session_category_id = ".$id_session_category." ,
  364. visibility= ".$id_visibility."
  365. WHERE id='$id'";
  366. Database::query($sql);
  367. return $id;
  368. }
  369. }
  370. }
  371. /**
  372. * Delete session
  373. * @author Carlos Vargas from existing code
  374. * @param array id_checked
  375. * @param boolean optional, true if the function is called by a webservice, false otherwise.
  376. * @return void Nothing, or false on error
  377. * The parameters is a array to delete sessions
  378. **/
  379. public static function delete_session ($id_checked,$from_ws = false) {
  380. $tbl_session= Database::get_main_table(TABLE_MAIN_SESSION);
  381. $tbl_session_rel_course= Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  382. $tbl_session_rel_course_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  383. $tbl_session_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_USER);
  384. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  385. $tbl_url_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  386. global $_user;
  387. if(is_array($id_checked)) {
  388. $id_checked = Database::escape_string(implode(',',$id_checked));
  389. } else {
  390. $id_checked = intval($id_checked);
  391. }
  392. if (!api_is_platform_admin() && !$from_ws) {
  393. $sql = 'SELECT session_admin_id FROM '.Database :: get_main_table(TABLE_MAIN_SESSION).' WHERE id='.$id_checked;
  394. $rs = Database::query($sql);
  395. if (Database::result($rs,0,0)!=$_user['user_id']) {
  396. api_not_allowed(true);
  397. }
  398. }
  399. Database::query("DELETE FROM $tbl_session WHERE id IN($id_checked)");
  400. Database::query("DELETE FROM $tbl_session_rel_course WHERE id_session IN($id_checked)");
  401. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session IN($id_checked)");
  402. Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session IN($id_checked)");
  403. Database::query("DELETE FROM $tbl_url_session WHERE session_id IN($id_checked)");
  404. // delete extra session fields
  405. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  406. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  407. // Delete extra fields from session where field variable is "SECCION"
  408. $sql = "SELECT t_sfv.field_id FROM $t_sfv t_sfv, $t_sf t_sf WHERE t_sfv.session_id = '$id_checked' AND t_sf.field_variable = 'SECCION' ";
  409. $rs_field = Database::query($sql);
  410. $field_id = 0;
  411. if (Database::num_rows($rs_field) == 1) {
  412. $row_field = Database::fetch_row($rs_field);
  413. $field_id = $row_field[0];
  414. $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
  415. $rs_delete_sfv = Database::query($sql_delete_sfv);
  416. }
  417. $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
  418. $rs_field_id = Database::query($sql);
  419. if (Database::num_rows($rs_field_id) == 0) {
  420. $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
  421. $rs_delete_sf = Database::query($sql_delete_sf);
  422. }
  423. /*
  424. $sql = "SELECT distinct field_id FROM $t_sfv WHERE session_id = '$id_checked'";
  425. $res_field_ids = @Database::query($sql);
  426. if (Database::num_rows($res_field_ids) > 0) {
  427. while($row_field_id = Database::fetch_row($res_field_ids)){
  428. $field_ids[] = $row_field_id[0];
  429. }
  430. }
  431. //delete from table_session_field_value from a given session id
  432. $sql_session_field_value = "DELETE FROM $t_sfv WHERE session_id = '$id_checked'";
  433. @Database::query($sql_session_field_value);
  434. $sql = "SELECT distinct field_id FROM $t_sfv";
  435. $res_field_all_ids = @Database::query($sql);
  436. if (Database::num_rows($res_field_all_ids) > 0) {
  437. while($row_field_all_id = Database::fetch_row($res_field_all_ids)){
  438. $field_all_ids[] = $row_field_all_id[0];
  439. }
  440. }
  441. if (count($field_ids) > 0 && count($field_all_ids) > 0) {
  442. foreach($field_ids as $field_id) {
  443. // check if field id is used into table field value
  444. if (in_array($field_id,$field_all_ids)) {
  445. continue;
  446. } else {
  447. $sql_session_field = "DELETE FROM $t_sf WHERE id = '$field_id'";
  448. Database::query($sql_session_field);
  449. }
  450. }
  451. }
  452. */
  453. // Add event to system log
  454. $user_id = api_get_user_id();
  455. event_system(LOG_SESSION_DELETE, LOG_SESSION_ID, $id_checked, api_get_utc_datetime(), $user_id);
  456. }
  457. /**
  458. * Subscribes users to the given session and optionally (default) unsubscribes previous users
  459. * @author Carlos Vargas from existing code
  460. * @param integer Session ID
  461. * @param array List of user IDs
  462. * @param bool Whether to unsubscribe existing users (true, default) or not (false)
  463. * @return void Nothing, or false on error
  464. **/
  465. public static function suscribe_users_to_session($id_session, $user_list, $session_visibility = SESSION_VISIBLE_READ_ONLY, $empty_users=true, $send_email=false) {
  466. if ($id_session!= strval(intval($id_session))) return false;
  467. foreach($user_list as $intUser){
  468. if ($intUser!= strval(intval($intUser))) return false;
  469. }
  470. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  471. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  472. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  473. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  474. $session_info = api_get_session_info($id_session);
  475. $session_name = $session_info['name'];
  476. //from function parameter
  477. if (empty($session_visibility)) {
  478. $session_visibility = $session_info['visibility']; //loaded from DB
  479. //default status loaded if empty
  480. if (empty($session_visibility))
  481. $session_visibility = SESSION_VISIBLE_READ_ONLY; // by default readonly 1
  482. } else {
  483. if (!in_array($session_visibility, array(SESSION_VISIBLE_READ_ONLY, SESSION_VISIBLE, SESSION_INVISIBLE))) {
  484. $session_visibility = SESSION_VISIBLE_READ_ONLY;
  485. }
  486. }
  487. $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$id_session' ";
  488. $result = Database::query($sql);
  489. $existingUsers = array();
  490. while($row = Database::fetch_array($result)) {
  491. $existingUsers[] = $row['id_user'];
  492. }
  493. $sql = "SELECT course_code FROM $tbl_session_rel_course WHERE id_session = '$id_session'";
  494. $result = Database::query($sql);
  495. $course_list = array();
  496. while($row = Database::fetch_array($result)) {
  497. $course_list[]=$row['course_code'];
  498. }
  499. if ($send_email) {
  500. //global $_configuration;
  501. //sending emails only
  502. if (is_array($user_list) && count($user_list)>0) {
  503. foreach($user_list as $enreg_user) {
  504. if (!in_array($enreg_user,$existingUsers )) {
  505. //send email
  506. $emailbody = '';
  507. $emailheaders = '';
  508. $user_info = UserManager::get_user_info_by_id($enreg_user);
  509. $firstname = $user_info['firstname'];
  510. $lastname = $user_info['lastname'];
  511. $email = $user_info['email'];
  512. $emailto = '"'.$firstname.' '.$lastname.'" <'.$email.'>';
  513. $emailsubject = '['.get_setting('siteName').'] '.get_lang('YourReg').' '.get_setting('siteName');
  514. $emailheaders = 'From: '.get_setting('administratorName').' '.get_setting('administratorSurname').' <'.get_setting('emailAdministrator').">\n";
  515. $emailheaders .= 'Reply-To: '.get_setting('emailAdministrator');
  516. $emailbody = get_lang('Dear')." ".stripslashes(api_get_person_name($firstname, $lastname)).",\n\n".sprintf(get_lang('YouAreRegisterToSessionX'), $session_name) ." \n\n" .get_lang('Address') ." ". get_setting('siteName') ." ". get_lang('Is') ." : ". api_get_path(WEB_PATH) ."\n\n". get_lang('Problem'). "\n\n". get_lang('Formula').",\n\n".get_setting('administratorName')." ".get_setting('administratorSurname')."\n". get_lang('Manager'). " ".get_setting('siteName')."\nT. ".get_setting('administratorTelephone')."\n" .get_lang('Email') ." : ".get_setting('emailAdministrator');
  517. @api_send_mail($emailto, $emailsubject, $emailbody, $emailheaders);
  518. }
  519. }
  520. }
  521. }
  522. foreach ($course_list as $enreg_course) {
  523. // for each course in the session
  524. $nbr_users=0;
  525. $enreg_course = Database::escape_string($enreg_course);
  526. // delete existing users
  527. if ($empty_users) {
  528. foreach ($existingUsers as $existing_user) {
  529. if (!in_array($existing_user, $user_list)) {
  530. $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND id_user='$existing_user' ";
  531. Database::query($sql);
  532. if (Database::affected_rows()) {
  533. $nbr_users--;
  534. }
  535. }
  536. }
  537. }
  538. // insert new users into session_rel_course_rel_user and ignore if they already exist
  539. foreach ($user_list as $enreg_user) {
  540. if(!in_array($enreg_user, $existingUsers)) {
  541. $enreg_user = Database::escape_string($enreg_user);
  542. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user(id_session,course_code,id_user,visibility) VALUES('$id_session','$enreg_course','$enreg_user','$session_visibility')";
  543. Database::query($insert_sql);
  544. if(Database::affected_rows()) {
  545. $nbr_users++;
  546. }
  547. }
  548. }
  549. // count users in this session-course relation
  550. $sql = "SELECT COUNT(id_user) as nbUsers FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND status<>2";
  551. $rs = Database::query($sql);
  552. list($nbr_users) = Database::fetch_array($rs);
  553. // update the session-course relation to add the users total
  554. $update_sql = "UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'";
  555. Database::query($update_sql);
  556. }
  557. // Delete users from the session
  558. if ($empty_users===true) {
  559. Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."");
  560. }
  561. // Insert missing users into session
  562. $nbr_users = 0;
  563. foreach ($user_list as $enreg_user) {
  564. $enreg_user = Database::escape_string($enreg_user);
  565. $nbr_users++;
  566. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user (id_session, id_user) VALUES ('$id_session','$enreg_user')";
  567. Database::query($insert_sql);
  568. }
  569. // update number of users in the session
  570. $nbr_users = count($user_list);
  571. if ($empty_users) {
  572. // update number of users in the session
  573. $update_sql = "UPDATE $tbl_session SET nbr_users= $nbr_users WHERE id='$id_session' ";
  574. Database::query($update_sql);
  575. } else {
  576. echo $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users + $nbr_users WHERE id='$id_session' ";
  577. Database::query($update_sql);
  578. }
  579. }
  580. /**
  581. * Unsubscribe user from session
  582. *
  583. * @param int Session id
  584. * @param int User id
  585. * @return bool True in case of success, false in case of error
  586. */
  587. public static function unsubscribe_user_from_session($session_id, $user_id) {
  588. $session_id = (int)$session_id;
  589. $user_id = (int)$user_id;
  590. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  591. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  592. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  593. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  594. $delete_sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user ='$user_id' AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
  595. Database::query($delete_sql);
  596. $return = Database::affected_rows();
  597. // Update number of users
  598. $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users - $return WHERE id='$session_id' ";
  599. Database::query($update_sql);
  600. // Get the list of courses related to this session
  601. $course_list = SessionManager::get_course_list_by_session_id($session_id);
  602. if(!empty($course_list)) {
  603. foreach($course_list as $course) {
  604. $course_code = $course['code'];
  605. // Delete user from course
  606. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$session_id' AND course_code='$course_code' AND id_user='$user_id'");
  607. if(Database::affected_rows()) {
  608. // Update number of users in this relation
  609. Database::query("UPDATE $tbl_session_rel_course SET nbr_users=nbr_users - 1 WHERE id_session='$session_id' AND course_code='$course_code'");
  610. }
  611. }
  612. }
  613. return true;
  614. }
  615. /** Subscribes courses to the given session and optionally (default) unsubscribes previous users
  616. * @author Carlos Vargas from existing code
  617. * @param int Session ID
  618. * @param array List of courses IDs
  619. * @param bool Whether to unsubscribe existing users (true, default) or not (false)
  620. * @return void Nothing, or false on error
  621. **/
  622. public static function add_courses_to_session ($id_session, $course_list, $empty_courses=true) {
  623. // security checks
  624. if ($id_session!= strval(intval($id_session))) { return false; }
  625. //foreach($course_list as $intCourse){
  626. // if ($intCourse!= strval(intval($intCourse))) { return false; }
  627. //}
  628. // initialisation
  629. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  630. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  631. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  632. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  633. $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
  634. // get general coach ID
  635. $id_coach = Database::query("SELECT id_coach FROM $tbl_session WHERE id=$id_session");
  636. $id_coach = Database::fetch_array($id_coach);
  637. $id_coach = $id_coach[0];
  638. // get list of courses subscribed to this session
  639. $rs = Database::query("SELECT course_code FROM $tbl_session_rel_course WHERE id_session=$id_session");
  640. $existingCourses = Database::store_result($rs);
  641. $nbr_courses=count($existingCourses);
  642. // get list of users subscribed to this session
  643. $sql="SELECT id_user
  644. FROM $tbl_session_rel_user
  645. WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
  646. $result=Database::query($sql);
  647. $user_list=Database::store_result($result);
  648. // remove existing courses from the session
  649. if ($empty_courses===true) {
  650. foreach ($existingCourses as $existingCourse) {
  651. if (!in_array($existingCourse['course_code'], $course_list)){
  652. Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
  653. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
  654. }
  655. }
  656. $nbr_courses=0;
  657. }
  658. // Pass through the courses list we want to add to the session
  659. foreach ($course_list as $enreg_course) {
  660. $enreg_course = Database::escape_string($enreg_course);
  661. $exists = false;
  662. // check if the course we want to add is already subscribed
  663. foreach ($existingCourses as $existingCourse) {
  664. if ($enreg_course == $existingCourse['course_code']) {
  665. $exists=true;
  666. }
  667. }
  668. if (!$exists) {
  669. //if the course isn't subscribed yet
  670. $sql_insert_rel_course= "INSERT INTO $tbl_session_rel_course (id_session,course_code) VALUES ('$id_session','$enreg_course')";
  671. Database::query($sql_insert_rel_course);
  672. //We add the current course in the existing courses array, to avoid adding another time the current course
  673. $existingCourses[]=array('course_code'=>$enreg_course);
  674. $nbr_courses++;
  675. // subscribe all the users from the session to this course inside the session
  676. $nbr_users=0;
  677. foreach ($user_list as $enreg_user) {
  678. $enreg_user_id = Database::escape_string($enreg_user['id_user']);
  679. $sql_insert = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user (id_session,course_code,id_user) VALUES ('$id_session','$enreg_course','$enreg_user_id')";
  680. Database::query($sql_insert);
  681. if (Database::affected_rows()) {
  682. $nbr_users++;
  683. }
  684. }
  685. Database::query("UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'");
  686. }
  687. }
  688. Database::query("UPDATE $tbl_session SET nbr_courses=$nbr_courses WHERE id='$id_session'");
  689. }
  690. /**
  691. * Unsubscribe course from a session
  692. *
  693. * @param int Session id
  694. * @param int Course id
  695. * @return bool True in case of success, false otherwise
  696. */
  697. public static function unsubscribe_course_from_session($session_id, $course_id) {
  698. $session_id = (int)$session_id;
  699. $course_id = (int)$course_id;
  700. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  701. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  702. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  703. // Get course code
  704. $course_code = CourseManager::get_course_code_from_course_id($course_id);
  705. if($course_code == 0) {
  706. return false;
  707. }
  708. // Unsubscribe course
  709. Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='$course_code' AND id_session='$session_id'");
  710. $nb_affected = Database::affected_rows();
  711. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='$course_code' AND id_session='$session_id'");
  712. if($nb_affected > 0) {
  713. // Update number of courses in the session
  714. Database::query("UPDATE $tbl_session SET nbr_courses= nbr_courses + $nb_affected WHERE id='$session_id' ");
  715. return true;
  716. } else {
  717. return false;
  718. }
  719. }
  720. /**
  721. * Creates a new extra field for a given session
  722. * @param string Field's internal variable name
  723. * @param int Field's type
  724. * @param string Field's language var name
  725. * @return int new extra field id
  726. */
  727. public static function create_session_extra_field ($fieldvarname, $fieldtype, $fieldtitle) {
  728. // database table definition
  729. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  730. $fieldvarname = Database::escape_string($fieldvarname);
  731. $fieldtitle = Database::escape_string($fieldtitle);
  732. $fieldtype = (int)$fieldtype;
  733. $time = time();
  734. $sql_field = "SELECT id FROM $t_sf WHERE field_variable = '$fieldvarname'";
  735. $res_field = Database::query($sql_field);
  736. $r_field = Database::fetch_row($res_field);
  737. if (Database::num_rows($res_field)>0) {
  738. $field_id = $r_field[0];
  739. } else {
  740. // save new fieldlabel into course_field table
  741. $sql = "SELECT MAX(field_order) FROM $t_sf";
  742. $res = Database::query($sql);
  743. $order = 0;
  744. if (Database::num_rows($res)>0) {
  745. $row = Database::fetch_row($res);
  746. $order = $row[0]+1;
  747. }
  748. $sql = "INSERT INTO $t_sf
  749. SET field_type = '$fieldtype',
  750. field_variable = '$fieldvarname',
  751. field_display_text = '$fieldtitle',
  752. field_order = '$order',
  753. tms = FROM_UNIXTIME($time)";
  754. $result = Database::query($sql);
  755. $field_id=Database::insert_id();
  756. }
  757. return $field_id;
  758. }
  759. /**
  760. * Update an extra field value for a given session
  761. * @param integer Course ID
  762. * @param string Field variable name
  763. * @param string Field value
  764. * @return boolean true if field updated, false otherwise
  765. */
  766. public static function update_session_extra_field_value ($session_id,$fname,$fvalue='') {
  767. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  768. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  769. $fname = Database::escape_string($fname);
  770. $session_id = (int)$session_id;
  771. $fvalues = '';
  772. if(is_array($fvalue))
  773. {
  774. foreach($fvalue as $val)
  775. {
  776. $fvalues .= Database::escape_string($val).';';
  777. }
  778. if(!empty($fvalues))
  779. {
  780. $fvalues = substr($fvalues,0,-1);
  781. }
  782. }
  783. else
  784. {
  785. $fvalues = Database::escape_string($fvalue);
  786. }
  787. $sqlsf = "SELECT * FROM $t_sf WHERE field_variable='$fname'";
  788. $ressf = Database::query($sqlsf);
  789. if(Database::num_rows($ressf)==1)
  790. { //ok, the field exists
  791. // Check if enumerated field, if the option is available
  792. $rowsf = Database::fetch_array($ressf);
  793. $tms = time();
  794. $sqlsfv = "SELECT * FROM $t_sfv WHERE session_id = '$session_id' AND field_id = '".$rowsf['id']."' ORDER BY id";
  795. $ressfv = Database::query($sqlsfv);
  796. $n = Database::num_rows($ressfv);
  797. if ($n>1) {
  798. //problem, we already have to values for this field and user combination - keep last one
  799. while($rowsfv = Database::fetch_array($ressfv))
  800. {
  801. if($n > 1)
  802. {
  803. $sqld = "DELETE FROM $t_sfv WHERE id = ".$rowsfv['id'];
  804. $resd = Database::query($sqld);
  805. $n--;
  806. }
  807. $rowsfv = Database::fetch_array($ressfv);
  808. if($rowsfv['field_value'] != $fvalues)
  809. {
  810. $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
  811. $resu = Database::query($sqlu);
  812. return($resu?true:false);
  813. }
  814. return true;
  815. }
  816. } else if ($n==1) {
  817. //we need to update the current record
  818. $rowsfv = Database::fetch_array($ressfv);
  819. if($rowsfv['field_value'] != $fvalues)
  820. {
  821. $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
  822. //error_log('UM::update_extra_field_value: '.$sqlu);
  823. $resu = Database::query($sqlu);
  824. return($resu?true:false);
  825. }
  826. return true;
  827. } else {
  828. $sqli = "INSERT INTO $t_sfv (session_id,field_id,field_value,tms) " .
  829. "VALUES ('$session_id',".$rowsf['id'].",'$fvalues',FROM_UNIXTIME($tms))";
  830. //error_log('UM::update_extra_field_value: '.$sqli);
  831. $resi = Database::query($sqli);
  832. return($resi?true:false);
  833. }
  834. } else {
  835. return false; //field not found
  836. }
  837. }
  838. /**
  839. * Checks the relationship between a session and a course.
  840. * @param int $session_id
  841. * @param int $course_id
  842. * @return bool Returns TRUE if the session and the course are related, FALSE otherwise.
  843. * */
  844. public static function relation_session_course_exist ($session_id, $course_id) {
  845. $tbl_session_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  846. $return_value = false;
  847. $sql= "SELECT course_code FROM $tbl_session_course WHERE id_session = ".Database::escape_string($session_id)." AND course_code = '".Database::escape_string($course_id)."'";
  848. $result = Database::query($sql);
  849. $num = Database::num_rows($result);
  850. if ($num>0) {
  851. $return_value = true;
  852. }
  853. return $return_value;
  854. }
  855. /**
  856. * Get the session information by name
  857. * @param string session name
  858. * @return mixed false if the session does not exist, array if the session exist
  859. * */
  860. public static function get_session_by_name ($session_name) {
  861. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  862. $sql = 'SELECT id, id_coach, date_start, date_end FROM '.$tbl_session.' WHERE name="'.Database::escape_string($session_name).'"';
  863. $result = Database::query($sql);
  864. $num = Database::num_rows($result);
  865. if ($num>0){
  866. return Database::fetch_array($result);
  867. } else {
  868. return false;
  869. }
  870. }
  871. /**
  872. * Create a session category
  873. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
  874. * @param string name
  875. * @param integer year_start
  876. * @param integer month_start
  877. * @param integer day_start
  878. * @param integer year_end
  879. * @param integer month_end
  880. * @param integer day_end
  881. * @return $id_session;
  882. **/
  883. public static function create_category_session($sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
  884. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  885. $name= trim($sname);
  886. $year_start= intval($syear_start);
  887. $month_start=intval($smonth_start);
  888. $day_start=intval($sday_start);
  889. $year_end=intval($syear_end);
  890. $month_end=intval($smonth_end);
  891. $day_end=intval($sday_end);
  892. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  893. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  894. if (empty($name)) {
  895. $msg=get_lang('SessionCategoryNameIsRequired');
  896. return $msg;
  897. } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
  898. $msg=get_lang('InvalidStartDate');
  899. return $msg;
  900. } elseif (!$month_end && !$day_end && !$year_end) {
  901. $date_end = "null";
  902. } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
  903. $msg=get_lang('InvalidEndDate');
  904. return $msg;
  905. } elseif($date_start >= $date_end) {
  906. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  907. return $msg;
  908. }
  909. $access_url_id = api_get_current_access_url_id();
  910. $sql = "INSERT INTO $tbl_session_category (name, date_start, date_end, access_url_id)
  911. VALUES('".Database::escape_string($name)."','$date_start','$date_end', '$access_url_id')";
  912. Database::query($sql);
  913. $id_session = Database::insert_id();
  914. // Add event to system log
  915. $user_id = api_get_user_id();
  916. event_system(LOG_SESSION_CATEGORY_CREATE, LOG_SESSION_CATEGORY_ID, $id_session, api_get_utc_datetime(), $user_id);
  917. return $id_session;
  918. }
  919. /**
  920. * Edit a sessions categories
  921. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>,from existing code
  922. * @param integer id
  923. * @param string name
  924. * @param integer year_start
  925. * @param integer month_start
  926. * @param integer day_start
  927. * @param integer year_end
  928. * @param integer month_end
  929. * @param integer day_end
  930. * @return $id;
  931. * The parameter id is a primary key
  932. **/
  933. public static function edit_category_session($id, $sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
  934. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  935. $name= trim($sname);
  936. $year_start= intval($syear_start);
  937. $month_start=intval($smonth_start);
  938. $day_start=intval($sday_start);
  939. $year_end=intval($syear_end);
  940. $month_end=intval($smonth_end);
  941. $day_end=intval($sday_end);
  942. $id=intval($id);
  943. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  944. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  945. if (empty($name)) {
  946. $msg=get_lang('SessionCategoryNameIsRequired');
  947. return $msg;
  948. } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
  949. $msg=get_lang('InvalidStartDate');
  950. return $msg;
  951. } elseif (!$month_end && !$day_end && !$year_end) {
  952. $date_end = null;
  953. } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
  954. $msg=get_lang('InvalidEndDate');
  955. return $msg;
  956. } elseif($date_start >= $date_end) {
  957. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  958. return $msg;
  959. }
  960. if ( $date_end <> null ) {
  961. $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
  962. ", date_end = '$date_end' WHERE id= '".$id."' ";
  963. } else {
  964. $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
  965. ", date_end = NULL WHERE id= '".$id."' ";
  966. }
  967. $result = Database::query($sql);
  968. return ($result? true:false);
  969. }
  970. /**
  971. * Delete sessions categories
  972. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
  973. * @param array id_checked
  974. * @param bool include delete session
  975. * @param bool optional, true if the function is called by a webservice, false otherwise.
  976. * @return void Nothing, or false on error
  977. * The parameters is a array to delete sessions
  978. **/
  979. public static function delete_session_category($id_checked, $delete_session = false,$from_ws = false){
  980. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  981. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  982. if(is_array($id_checked)) {
  983. $id_checked=Database::escape_string(implode(',',$id_checked));
  984. } else {
  985. $id_checked=intval($id_checked);
  986. }
  987. $sql = "SELECT id FROM $tbl_session WHERE session_category_id IN (".$id_checked.")";
  988. $result = @Database::query($sql);
  989. while ($rows = Database::fetch_array($result)) {
  990. $session_id = $rows['id'];
  991. if ($delete_session) {
  992. if ($from_ws) {
  993. SessionManager::delete_session($session_id,true);
  994. } else {
  995. SessionManager::delete_session($session_id);
  996. }
  997. }
  998. }
  999. $sql = "DELETE FROM $tbl_session_category WHERE id IN (".$id_checked.")";
  1000. $rs = @Database::query($sql);
  1001. $result = Database::affected_rows();
  1002. // Add event to system log
  1003. $user_id = api_get_user_id();
  1004. event_system(LOG_SESSION_CATEGORY_DELETE, LOG_SESSION_CATEGORY_ID, $id_checked, api_get_utc_datetime(), $user_id);
  1005. // delete extra session fields where field variable is "PERIODO"
  1006. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  1007. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  1008. $sql = "SELECT t_sfv.field_id FROM $t_sfv t_sfv, $t_sf t_sf WHERE t_sfv.session_id = '$id_checked' AND t_sf.field_variable = 'PERIODO' ";
  1009. $rs_field = Database::query($sql);
  1010. $field_id = 0;
  1011. if (Database::num_rows($rs_field) > 0) {
  1012. $row_field = Database::fetch_row($rs_field);
  1013. $field_id = $row_field[0];
  1014. $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
  1015. $rs_delete_sfv = Database::query($sql_delete_sfv);
  1016. }
  1017. $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
  1018. $rs_field_id = Database::query($sql);
  1019. if (Database::num_rows($rs_field_id) == 0) {
  1020. $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
  1021. $rs_delete_sf = Database::query($sql_delete_sf);
  1022. }
  1023. return true;
  1024. }
  1025. /**
  1026. * Get a list of sessions of which the given conditions match with an = 'cond'
  1027. * @param array $conditions a list of condition (exemple : array('status =' =>STUDENT) or array('s.name LIKE' => "%$needle%")
  1028. * @param array $order_by a list of fields on which sort
  1029. * @return array An array with all sessions of the platform.
  1030. * @todo optional course code parameter, optional sorting parameters...
  1031. */
  1032. public static function get_sessions_list($conditions = array(), $order_by = array()) {
  1033. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1034. $session_category_table = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1035. $user_table = Database::get_main_table(TABLE_MAIN_USER);
  1036. $table_access_url_rel_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1037. $access_url_id = api_get_current_access_url_id();
  1038. $return_array = array();
  1039. $sql_query = " SELECT s.id, s.name, s.nbr_courses, s.date_start, s.date_end, u.firstname, u.lastname, sc.name as category_name, s.promotion_id
  1040. FROM $session_table s
  1041. INNER JOIN $user_table u ON s.id_coach = u.user_id
  1042. INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
  1043. LEFT JOIN $session_category_table sc ON s.session_category_id = sc.id
  1044. WHERE ar.access_url_id = $access_url_id ";
  1045. if (count($conditions)>0) {
  1046. $sql_query .= ' AND ';
  1047. foreach ($conditions as $field=>$value) {
  1048. $field = Database::escape_string($field);
  1049. $value = Database::escape_string($value);
  1050. $sql_query .= $field." '".$value."'";
  1051. }
  1052. }
  1053. if (count($order_by)>0) {
  1054. $sql_query .= ' ORDER BY '.Database::escape_string(implode(',',$order_by));
  1055. }
  1056. //echo $sql_query;
  1057. $sql_result = Database::query($sql_query);
  1058. if (Database::num_rows($sql_result)>0) {
  1059. while ($result = Database::fetch_array($sql_result)) {
  1060. $return_array[$result['id']] = $result;
  1061. }
  1062. }
  1063. return $return_array;
  1064. }
  1065. /**
  1066. * Get the session category information by id
  1067. * @param string session category ID
  1068. * @return mixed false if the session category does not exist, array if the session category exists
  1069. */
  1070. public static function get_session_category ($id) {
  1071. $id = intval($id);
  1072. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1073. $sql = 'SELECT id, name, date_start, date_end FROM '.$tbl_session_category.' WHERE id="'.$id.'"';
  1074. $result = Database::query($sql);
  1075. $num = Database::num_rows($result);
  1076. if ($num>0){
  1077. return Database::fetch_array($result);
  1078. } else {
  1079. return false;
  1080. }
  1081. }
  1082. /**
  1083. * Get all session categories (filter by access_url_id)
  1084. * @return mixed false if the session category does not exist, array if the session category exists
  1085. */
  1086. public static function get_all_session_category() {
  1087. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1088. $id = api_get_current_access_url_id();
  1089. $sql = 'SELECT * FROM '.$tbl_session_category.' WHERE access_url_id ="'.$id.'" ORDER BY name ASC';
  1090. $result = Database::query($sql);
  1091. if (Database::num_rows($result) > 0 ){
  1092. $data = Database::store_result($result,'ASSOC');
  1093. return $data;
  1094. } else {
  1095. return false;
  1096. }
  1097. }
  1098. /**
  1099. * Assign a coach to course in session with status = 2
  1100. * @param int - user id
  1101. * @param int - session id
  1102. * @param string - course code
  1103. * @param bool - optional, if is true the user don't be a coach now, otherwise it'll assign a coach
  1104. * @return bool true if there are affected rows, otherwise false
  1105. */
  1106. public static function set_coach_to_course_session($user_id, $session_id = 0, $course_code = '',$nocoach = false) {
  1107. // Definition of variables
  1108. $user_id = intval($user_id);
  1109. if (!empty($session_id)) {
  1110. $session_id = intval($session_id);
  1111. } else {
  1112. $session_id = api_get_session_id();
  1113. }
  1114. if (!empty($course_code)) {
  1115. $course_code = Database::escape_string($course_code);
  1116. } else {
  1117. $course_code = api_get_course_id();
  1118. }
  1119. // definitios of tables
  1120. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1121. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1122. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1123. // check if user is a teacher
  1124. $sql= "SELECT * FROM $tbl_user WHERE status='1' AND user_id = '$user_id'";
  1125. $rs_check_user = Database::query($sql);
  1126. if (Database::num_rows($rs_check_user) > 0) {
  1127. if ($nocoach) {
  1128. // check if user_id exits int session_rel_user
  1129. $sql = "SELECT id_user FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user = '$user_id'";
  1130. $res = Database::query($sql);
  1131. if (Database::num_rows($res) > 0) {
  1132. // The user don't be a coach now
  1133. $sql = "UPDATE $tbl_session_rel_course_rel_user SET status = 0 WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
  1134. $rs_update = Database::query($sql);
  1135. if (Database::affected_rows() > 0) return true;
  1136. else return false;
  1137. } else {
  1138. // The user don't be a coach now
  1139. $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
  1140. $rs_delete = Database::query($sql);
  1141. if (Database::affected_rows() > 0) return true;
  1142. else return false;
  1143. }
  1144. } else {
  1145. // Assign user like a coach to course
  1146. // First check if the user is registered in the course
  1147. $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id'";
  1148. $rs_check = Database::query($sql);
  1149. //Then update or insert
  1150. if (Database::num_rows($rs_check) > 0) {
  1151. $sql = "UPDATE $tbl_session_rel_course_rel_user SET status = 2 WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
  1152. $rs_update = Database::query($sql);
  1153. if (Database::affected_rows() > 0) return true;
  1154. else return false;
  1155. } else {
  1156. $sql = " INSERT INTO $tbl_session_rel_course_rel_user(id_session, course_code, id_user, status) VALUES('$session_id', '$course_code', '$user_id', 2)";
  1157. $rs_insert = Database::query($sql);
  1158. if (Database::affected_rows() > 0) return true;
  1159. else return false;
  1160. }
  1161. }
  1162. } else {
  1163. return false;
  1164. }
  1165. }
  1166. /**
  1167. * Subscribes sessions to human resource manager (Dashboard feature)
  1168. * @param int Human Resource Manager id
  1169. * @param array Sessions id
  1170. * @param int Relation type
  1171. **/
  1172. public static function suscribe_sessions_to_hr_manager($hr_manager_id,$sessions_list) {
  1173. global $_configuration;
  1174. // Database Table Definitions
  1175. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1176. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1177. $tbl_session_rel_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1178. $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1179. $hr_manager_id = intval($hr_manager_id);
  1180. $affected_rows = 0;
  1181. //Deleting assigned sessions to hrm_id
  1182. if ($_configuration['multiple_access_urls']) {
  1183. $sql = "SELECT id_session FROM $tbl_session_rel_user s INNER JOIN $tbl_session_rel_access_url a ON (a.session_id = s.id_session) WHERE id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH." AND access_url_id = ".api_get_current_access_url_id()."";
  1184. } else {
  1185. $sql = "SELECT id_session FROM $tbl_session_rel_user s WHERE id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH."";
  1186. }
  1187. $result = Database::query($sql);
  1188. if (Database::num_rows($result) > 0) {
  1189. while ($row = Database::fetch_array($result)) {
  1190. $sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = {$row['id_session']} AND id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH." ";
  1191. Database::query($sql);
  1192. }
  1193. }
  1194. /*
  1195. //Deleting assigned courses in sessions to hrm_id
  1196. $sql = "SELECT * FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
  1197. $result = Database::query($sql);
  1198. if (Database::num_rows($result) > 0) {
  1199. $sql = "DELETE FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
  1200. Database::query($sql);
  1201. }
  1202. */
  1203. // inserting new sessions list
  1204. if (is_array($sessions_list)) {
  1205. foreach ($sessions_list as $session_id) {
  1206. $session_id = intval($session_id);
  1207. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user(id_session, id_user, relation_type) VALUES($session_id, $hr_manager_id, '".SESSION_RELATION_TYPE_RRHH."')";
  1208. Database::query($insert_sql);
  1209. $affected_rows = Database::affected_rows();
  1210. }
  1211. }
  1212. return $affected_rows;
  1213. }
  1214. /**
  1215. * Get sessions followed by human resources manager
  1216. * @param int Human resources manager or Session admin id
  1217. * @return array sessions
  1218. */
  1219. public static function get_sessions_followed_by_drh($hr_manager_id) {
  1220. global $_configuration;
  1221. // Database Table Definitions
  1222. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1223. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1224. $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1225. $hr_manager_id = intval($hr_manager_id);
  1226. $assigned_sessions_to_hrm = array();
  1227. if ($_configuration['multiple_access_urls']) {
  1228. $sql = "SELECT * FROM $tbl_session s INNER JOIN $tbl_session_rel_user sru ON (sru.id_session = s.id) LEFT JOIN $tbl_session_rel_access_url a ON (s.id = a.session_id)
  1229. WHERE sru.id_user = '$hr_manager_id' AND sru.relation_type = '".SESSION_RELATION_TYPE_RRHH."' AND access_url_id = ".api_get_current_access_url_id()."";
  1230. } else {
  1231. $sql = "SELECT * FROM $tbl_session s
  1232. INNER JOIN $tbl_session_rel_user sru ON sru.id_session = s.id AND sru.id_user = '$hr_manager_id' AND sru.relation_type = '".SESSION_RELATION_TYPE_RRHH."' ";
  1233. }
  1234. $rs_assigned_sessions = Database::query($sql);
  1235. if (Database::num_rows($rs_assigned_sessions) > 0) {
  1236. while ($row_assigned_sessions = Database::fetch_array($rs_assigned_sessions)) {
  1237. $assigned_sessions_to_hrm[$row_assigned_sessions['id']] = $row_assigned_sessions;
  1238. }
  1239. }
  1240. return $assigned_sessions_to_hrm;
  1241. }
  1242. /**
  1243. * Gets the list of courses by session filtered by access_url
  1244. * @param int session id
  1245. * @return array list of courses
  1246. */
  1247. public static function get_course_list_by_session_id ($session_id) {
  1248. $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
  1249. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  1250. // select the courses
  1251. $sql = "SELECT * FROM $tbl_course c INNER JOIN $tbl_session_rel_course src ON c.code = src.course_code
  1252. WHERE src.id_session = '$session_id' ORDER BY title;";
  1253. $result = Database::query($sql);
  1254. $num_rows = Database::num_rows($result);
  1255. $courses = array();
  1256. if ($num_rows > 0) {
  1257. while ($row = Database::fetch_array($result,'ASSOC')) {
  1258. $courses[$row['id']] = $row;
  1259. }
  1260. }
  1261. return $courses;
  1262. }
  1263. /**
  1264. * Get the session id based on the original id and field name in the extra fields. Returns 0 if session was not found
  1265. *
  1266. * @param string Original session id
  1267. * @param string Original field name
  1268. * @return int Session id
  1269. */
  1270. public static function get_session_id_from_original_id($original_session_id_value, $original_session_id_name) {
  1271. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  1272. $table_field = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  1273. $sql_session = "SELECT session_id FROM $table_field sf INNER JOIN $t_sfv sfv ON sfv.field_id=sf.id WHERE field_variable='$original_session_id_name' AND field_value='$original_session_id_value'";
  1274. $res_session = Database::query($sql_session);
  1275. $row = Database::fetch_object($res_session);
  1276. if ($row) {
  1277. return $row->session_id;
  1278. } else {
  1279. return 0;
  1280. }
  1281. }
  1282. /**
  1283. * Get users by session
  1284. * @param int sesssion id
  1285. * @param int filter by status
  1286. * @return array a list with an user list
  1287. */
  1288. public static function get_users_by_session($id, $with_status = false) {
  1289. if (empty($id)) {
  1290. return array();
  1291. }
  1292. $id = intval($id);
  1293. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1294. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1295. $sql = 'SELECT '.$tbl_user.'.user_id, lastname, firstname, username
  1296. FROM '.$tbl_user.'
  1297. INNER JOIN '.$tbl_session_rel_user.'
  1298. ON '.$tbl_user.'.user_id = '.$tbl_session_rel_user.'.id_user
  1299. AND '.$tbl_session_rel_user.'.id_session = '.$id;
  1300. if ($with_status !== false) {
  1301. $with_status = intval($with_status);
  1302. $sql .= " WHERE relation_type = $with_status ";
  1303. }
  1304. $result = Database::query($sql);
  1305. while ($row = Database::fetch_array($result,'ASSOC')) {
  1306. $return_array[] = $row;
  1307. }
  1308. return $return_array;
  1309. }
  1310. public static function get_sessions_by_coach($user_id) {
  1311. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1312. return Database::select('*', $session_table, array('where'=>array('id_coach = ?'=>$user_id)));
  1313. }
  1314. /*
  1315. public static function get_coaches_by_session($session_id, $course_code) {
  1316. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1317. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1318. $sql = "SELECT user.user_id
  1319. FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
  1320. WHERE session_rcru.id_user = user.user_id AND
  1321. session_rcru.id_session = '".intval($session_id)."' AND
  1322. session_rcru.course_code ='".Database::escape_string($course_code)."' AND
  1323. session_rcru.status = 2 ";
  1324. $result = Database::query($sql);
  1325. while ($row = Database::fetch_array($result,'ASSOC')) {
  1326. $return_array[] = $row;
  1327. }
  1328. return $return_array;
  1329. }*/
  1330. /**
  1331. * Gets user status within a session
  1332. * @param $user_id
  1333. * @param $course_code
  1334. * @param $session_id
  1335. * @return unknown_type
  1336. */
  1337. public function get_user_status_in_session($user_id, $course_code, $session_id) {
  1338. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1339. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1340. $sql = "SELECT session_rcru.status
  1341. FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
  1342. WHERE session_rcru.id_user = user.user_id AND
  1343. session_rcru.id_session = '".intval($session_id)."' AND
  1344. session_rcru.course_code ='".Database::escape_string($course_code)."' AND
  1345. user.user_id = ".intval($user_id);
  1346. $result = Database::query($sql);
  1347. $status = false;
  1348. if (Database::num_rows($result)) {
  1349. $status = Database::fetch_row($result);
  1350. $status = $status['0'];
  1351. }
  1352. return $status;
  1353. }
  1354. public static function get_session_by_user($coach_id, $user_id) {
  1355. }
  1356. function get_all_sessions_by_promotion($id) {
  1357. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1358. return Database::select('*', $t, array('where'=>array('promotion_id = ?'=>$id)));
  1359. }
  1360. function suscribe_sessions_to_promotion($promotion_id, $list) {
  1361. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1362. $params['promotion_id'] = 0;
  1363. Database::update($t, $params, array('promotion_id = ?'=>$promotion_id));
  1364. $params['promotion_id'] = $promotion_id;
  1365. if (!empty($list)) {
  1366. foreach ($list as $session_id) {
  1367. $session_id= intval($session_id);
  1368. Database::update($t, $params, array('id = ?'=>$session_id));
  1369. }
  1370. }
  1371. }
  1372. /**
  1373. * Updates a session status
  1374. * @param int session id
  1375. * @param int status
  1376. */
  1377. public function set_session_status($session_id, $status) {
  1378. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1379. $params['visibility'] = $status;
  1380. Database::update($t, $params, array('id = ?'=>$session_id));
  1381. }
  1382. /**
  1383. * Copies a session with the same data to a new session.
  1384. * The new copy is not assigned to the same promotion. @see suscribe_sessions_to_promotions() for that
  1385. * @param int Session ID
  1386. * @param bool Whether to copy the relationship with courses
  1387. * @param bool Whether to copy the relationship with users
  1388. * @param bool New courses will be created
  1389. * @return int The new session ID on success, 0 otherwise
  1390. * @todo make sure the extra session fields are copied too
  1391. */
  1392. /**
  1393. * @param $id
  1394. * @param $copy_courses
  1395. * @param $copy_users
  1396. * @param $create_new_courses
  1397. * @param $set_exercises_lp_invisible
  1398. * @return unknown_type
  1399. */
  1400. public function copy_session($id, $copy_courses = true, $copy_users = true, $create_new_courses = false, $set_exercises_lp_invisible = false) {
  1401. $id = intval($id);
  1402. $s = self::fetch($id);
  1403. $s['year_start'] = substr($s['date_start'],0,4);
  1404. $s['month_start'] = substr($s['date_start'],5,2);
  1405. $s['day_start'] = substr($s['date_start'],8,2);
  1406. $s['year_end'] = substr($s['date_end'],0,4);
  1407. $s['month_end'] = substr($s['date_end'],5,2);
  1408. $s['day_end'] = substr($s['date_end'],8,2);
  1409. $consider_start = true;
  1410. if ($s['year_start'].'-'.$s['month_start'].'-'.$s['day_start'] == '0000-00-00') {
  1411. $consider_start = false;
  1412. }
  1413. $consider_end = true;
  1414. if ($s['year_end'].'-'.$s['month_end'].'-'.$s['day_end'] == '0000-00-00') {
  1415. $consider_end = false;
  1416. }
  1417. $sid = self::create_session($s['name'].' '.get_lang('Copy'),
  1418. $s['year_start'], $s['month_start'], $s['day_start'],
  1419. $s['year_end'],$s['month_end'],$s['day_end'],
  1420. $s['nb_days_acess_before_beginning'],$s['nb_days_acess_after_end'],
  1421. false,(int)$s['id_coach'], $s['session_category_id'],
  1422. (int)$s['visibility'],$consider_start, $consider_end, true);
  1423. if (!is_numeric($sid) || empty($sid)) {
  1424. return false;
  1425. }
  1426. if ($copy_courses) {
  1427. // Register courses from the original session to the new session
  1428. $courses = self::get_course_list_by_session_id($id);
  1429. $short_courses = $new_short_courses = array();
  1430. if (is_array($courses) && count($courses)>0) {
  1431. foreach ($courses as $course) {
  1432. $short_courses[] = $course;
  1433. }
  1434. }
  1435. $courses = null;
  1436. //We will copy the current courses of the session to new courses
  1437. if (!empty($short_courses)) {
  1438. if ($create_new_courses) {
  1439. //Just in case
  1440. if (function_exists('ini_set')) {
  1441. ini_set('memory_limit','256M');
  1442. ini_set('max_execution_time',0);
  1443. }
  1444. $params = array();
  1445. $params['skip_lp_dates'] = true;
  1446. foreach ($short_courses as $course_data) {
  1447. $course_info = CourseManager::copy_course_simple($course_data['title'].' '.get_lang('Copy'), $course_data['course_code'], $id, $sid, $params);
  1448. if ($course_info) {
  1449. //By default new elements are invisible
  1450. if ($set_exercises_lp_invisible) {
  1451. require_once api_get_path(SYS_CODE_PATH).'newscorm/learnpathList.class.php';
  1452. $list = new LearnpathList('', $course_info['code'], $sid);
  1453. $flat_list = $list->get_flat_list();
  1454. if (!empty($flat_list)) {
  1455. foreach($flat_list as $lp_id => $data) {
  1456. api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0, $sid);
  1457. api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0);
  1458. }
  1459. }
  1460. $quiz_table = Database::get_course_table(TABLE_QUIZ_TEST);
  1461. $course_id = $course_info['real_id'];
  1462. //@todo check this query
  1463. $sql = "UPDATE $quiz_table SET active = 0 WHERE c_id = $course_id ";
  1464. $result=Database::query($sql);
  1465. }
  1466. $new_short_courses[] = $course_info['code'];
  1467. }
  1468. }
  1469. } else {
  1470. foreach($short_courses as $course_data) {
  1471. $new_short_courses[] = $course_data['code'];
  1472. }
  1473. }
  1474. $short_courses = $new_short_courses;
  1475. $res = self::add_courses_to_session($sid, $short_courses, true);
  1476. $short_courses = null;
  1477. }
  1478. }
  1479. if ($copy_users) {
  1480. // Register users from the original session to the new session
  1481. $users = self::get_users_by_session($id);
  1482. $short_users = array();
  1483. if (is_array($users) && count($users)>0) {
  1484. foreach ($users as $user) {
  1485. $short_users[] = $user['user_id'];
  1486. }
  1487. }
  1488. $users = null;
  1489. //Subscribing in read only mode
  1490. $res = self::suscribe_users_to_session($sid, $short_users, SESSION_VISIBLE_READ_ONLY, true, false);
  1491. $short_users = null;
  1492. }
  1493. return $sid;
  1494. }
  1495. function user_is_general_coach($user_id, $session_id) {
  1496. $session_id = intval($session_id);
  1497. $user_id = intval($user_id);
  1498. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1499. $sql = "SELECT DISTINCT id
  1500. FROM $session_table
  1501. WHERE session.id_coach = '".$user_id."' AND id = '$session_id'";
  1502. $result = Database::query($sql);
  1503. if ($result && Database::num_rows($result)) {
  1504. return true;
  1505. }
  1506. return false;
  1507. }
  1508. }