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128 lines
4.7 KiB
128 lines
4.7 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Class AddCourseToSession
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*/
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class AddCourseToSession
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{
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/**
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* Searches a course, given a search string and a type of search box
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* @param string $needle Search string
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* @param string $type Type of search box ('single' or anything else)
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* @return string XajaxResponse
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* @assert ('abc', 'single') !== null
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* @assert ('abc', 'multiple') !== null
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*/
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public static function search_courses($needle, $type)
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{
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global $tbl_session_rel_course, $id_session;
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$tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
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$course_title = null;
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$xajax_response = new xajaxResponse();
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$return = '';
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if(!empty($needle) && !empty($type)) {
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// xajax send utf8 datas... datas in db can be non-utf8 datas
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$charset = api_get_system_encoding();
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$needle = api_convert_encoding($needle, $charset, 'utf-8');
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$cond_course_code = '';
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if (!empty($id_session)) {
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$id_session = intval($id_session);
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// check course_code from session_rel_course table
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$sql = 'SELECT c_id FROM '.$tbl_session_rel_course.'
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WHERE session_id = '.$id_session;
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$res = Database::query($sql);
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$course_codes = '';
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if (Database::num_rows($res) > 0) {
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while ($row = Database::fetch_row($res)) {
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$course_codes .= '\''.$row[0].'\',';
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}
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$course_codes = substr($course_codes,0,(strlen($course_codes)-1));
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$cond_course_code = ' AND course.id NOT IN('.$course_codes.') ';
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}
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}
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if ($type=='single') {
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// search users where username or firstname or lastname begins likes $needle
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$sql = 'SELECT
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course.code,
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course.visual_code,
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course.title,
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session_rel_course.session_id
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FROM '.$tbl_course.' course
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LEFT JOIN '.$tbl_session_rel_course.' session_rel_course
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ON course.id = session_rel_course.c_id
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AND session_rel_course.session_id = '.intval($id_session).'
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WHERE
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course.visual_code LIKE "'.$needle.'%" OR
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course.title LIKE "'.$needle.'%"';
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} else {
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$sql = 'SELECT course.code, course.visual_code, course.title
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FROM '.$tbl_course.' course
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WHERE
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course.visual_code LIKE "'.$needle.'%" '.$cond_course_code.'
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ORDER BY course.code ';
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}
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if (api_is_multiple_url_enabled()) {
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$tbl_course_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
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$access_url_id = api_get_current_access_url_id();
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if ($access_url_id != -1){
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if ($type=='single') {
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$sql = 'SELECT
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course.code,
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course.visual_code,
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course.title,
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session_rel_course.session_id
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FROM '.$tbl_course.' course
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LEFT JOIN '.$tbl_session_rel_course.' session_rel_course
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ON course.id = session_rel_course.c_id
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AND session_rel_course.session_id = '.intval($id_session).'
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INNER JOIN '.$tbl_course_rel_access_url.' url_course
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ON (url_course.c_id = course.id)
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WHERE
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access_url_id = '.$access_url_id.' AND
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(course.visual_code LIKE "'.$needle.'%" OR
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course.title LIKE "'.$needle.'%" )';
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} else {
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$sql = 'SELECT course.code, course.visual_code, course.title
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FROM '.$tbl_course.' course, '.$tbl_course_rel_access_url.' url_course
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WHERE
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url_course.c_id = course.id AND
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access_url_id = '.$access_url_id.' AND
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course.visual_code LIKE "'.$needle.'%" '.$cond_course_code.'
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ORDER BY course.code ';
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}
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}
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}
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$rs = Database::query($sql);
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$course_list = array();
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if ($type=='single') {
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while($course = Database :: fetch_array($rs)) {
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$course_list[] = $course['code'];
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$course_title=str_replace("'","\'",$course_title);
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$return .= '<a href="javascript: void(0);" onclick="javascript: add_course_to_session(\''.$course['code'].'\',\''.$course_title.' ('.$course['visual_code'].')'.'\')">'.$course['title'].' ('.$course['visual_code'].')</a><br />';
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}
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$xajax_response -> addAssign('ajax_list_courses_single','innerHTML',api_utf8_encode($return));
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} else {
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$return .= '<select id="origin" name="NoSessionCoursesList[]" multiple="multiple" size="20" style="width:340px;">';
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while($course = Database :: fetch_array($rs)) {
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$course_list[] = $course['code'];
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$course_title=str_replace("'","\'",$course_title);
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$return .= '<option value="'.$course['code'].'" title="'.htmlspecialchars($course['title'].' ('.$course['visual_code'].')',ENT_QUOTES).'">'.$course['title'].' ('.$course['visual_code'].')</option>';
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}
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$return .= '</select>';
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$xajax_response -> addAssign('ajax_list_courses_multiple','innerHTML',api_utf8_encode($return));
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}
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}
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$_SESSION['course_list'] = $course_list;
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return $xajax_response;
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}
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}
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