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545 lines
20 KiB
545 lines
20 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This library provides functions for the glossary tool.
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* Include/require it in your code to use its functionality.
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* @package chamilo.library
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*/
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class GlossaryManager {
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/**
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* Get all glossary terms
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* @author Isaac Flores <isaac.flores@dokeos.com>
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* @return Array Contain glossary terms
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*/
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public static function get_glossary_terms () {
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global $course;
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$glossary_data = array();
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$glossary_table = Database::get_course_table(TABLE_GLOSSARY);
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$session_id = intval($session_id);
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$sql_filter = api_get_session_condition($session_id);
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$sql = 'SELECT glossary_id as id,name,description '.
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' FROM '.$glossary_table.' WHERE 1=1 '.$sql_filter;
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$rs = Database::query($sql);
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while ($row = Database::fetch_array($rs)) {
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$glossary_data[] = $row;
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}
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return $glossary_data;
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}
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/**
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* Get glossary term by glossary id
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* @author Isaac Flores <florespaz@bidsoftperu.com>
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* @param Integer The glossary id
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* @return String The glossary description
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*/
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public static function get_glossary_term_by_glossary_id ($glossary_id) {
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global $course;
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$glossary_table = Database::get_course_table(TABLE_GLOSSARY);
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$sql='SELECT description FROM '.$glossary_table.' WHERE glossary_id="'.Database::escape_string($glossary_id).'"';
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$rs=Database::query($sql);
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if (Database::num_rows($rs) > 0) {
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$row=Database::fetch_array($rs);
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return $row['description'];
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} else {
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return '';
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}
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}
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/**
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* Get glossary term by glossary id
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* @author Isaac Flores <florespaz_isaac@hotmail.com>
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* @param String The glossary term name
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* @return String The glossary description
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*/
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public static function get_glossary_term_by_glossary_name ($glossary_name) {
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global $course;
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$glossary_table = Database::get_course_table(TABLE_GLOSSARY);
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$session_id = intval($session_id);
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$sql_filter = api_get_session_condition($session_id);
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$sql='SELECT description FROM '.$glossary_table.' '.
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' WHERE name like trim("'.Database::escape_string($glossary_name).'")'.
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$sql_filter;
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$rs=Database::query($sql);
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if (Database::num_rows($rs) > 0) {
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$row=Database::fetch_array($rs);
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return $row['description'];
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} else {
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return '';
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}
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}
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/**
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* This functions stores the glossary in the database
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*
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* @param array Array of title + description (glossary_title => $title, glossary_comment => $comment)
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* @return mixed Term id on success, false on failure
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* @author Christian Fasanando <christian.fasanando@dokeos.com>
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function save_glossary($values) {
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if (!is_array($values) or !isset($values['glossary_title'])) {
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return false;
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}
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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// get the maximum display order of all the glossary items
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$max_glossary_item = GlossaryManager::get_max_glossary_item();
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// session_id
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$session_id = api_get_session_id();
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// check if the glossary term already exists
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if (GlossaryManager::glossary_exists($values['glossary_title']))
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{
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// display the feedback message
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Display::display_error_message(get_lang('GlossaryTermAlreadyExistsYouShouldEditIt'));
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return false;
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} else {
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$sql = "INSERT INTO $t_glossary (name, description, display_order, session_id)
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VALUES(
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'".Database::escape_string($values['glossary_title'])."',
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'".Database::escape_string($values['glossary_comment'])."',
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'".(int)($max_glossary_item + 1)."',
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'".Database::escape_string($session_id)."'
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)";
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$result = Database::query($sql);
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if ($result === false) { return false; }
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$id = Database::insert_id();
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//insert into item_property
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api_item_property_update(api_get_course_info(), TOOL_GLOSSARY, $id, 'GlossaryAdded', api_get_user_id());
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$_SESSION['max_glossary_display'] = GlossaryManager::get_max_glossary_item();
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// display the feedback message
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Display::display_confirmation_message(get_lang('TermAdded'));
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return $id;
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}
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}
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/**
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* update the information of a glossary term in the database
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*
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* @param array $values an array containing all the form elements
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* @return boolean True on success, false on failure
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* @author Christian Fasanando <christian.fasanando@dokeos.com>
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function update_glossary($values) {
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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// check if the glossary term already exists
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if (GlossaryManager::glossary_exists($values['glossary_title'],$values['glossary_id']))
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{
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// display the feedback message
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Display::display_error_message(get_lang('GlossaryTermAlreadyExistsYouShouldEditIt'));
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return false;
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} else {
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$sql = "UPDATE $t_glossary SET
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name = '".Database::escape_string($values['glossary_title'])."',
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description = '".Database::escape_string($values['glossary_comment'])."'
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WHERE glossary_id = ".Database::escape_string($values['glossary_id']);
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$result = Database::query($sql);
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if ($result === false) { return false; }
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//update glossary into item_property
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api_item_property_update(api_get_course_info(), TOOL_GLOSSARY, Database::escape_string($values['glossary_id']), 'GlossaryUpdated', api_get_user_id());
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// display the feedback message
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Display::display_confirmation_message(get_lang('TermUpdated'));
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}
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return true;
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}
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/**
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* Get the maximum display order of the glossary item
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* @return integer Maximum glossary display order
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* @author Christian Fasanando <christian.fasanando@dokeos.com>
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function get_max_glossary_item() {
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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$get_max = "SELECT MAX(display_order) FROM $t_glossary";
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$res_max = Database::query($get_max);
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if (Database::num_rows($res_max)==0) {
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return 0;
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}
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$row = Database::fetch_array($res_max);
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if (!empty($row[0])) {
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return $row[0];
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}
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return 0;
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}
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/**
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* check if the glossary term exists or not
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*
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* @param string Term to look for
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* @param integer ID to counter-check if the term exists with this ID as well (optional)
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* @return bool True if term exists
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*
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function glossary_exists($term,$not_id='') {
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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$sql = "SELECT name FROM $t_glossary WHERE name = '".Database::escape_string($term)."'";
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if ($not_id<>'')
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{
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$sql .= " AND glossary_id <> '".Database::escape_string($not_id)."'";
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}
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$result = Database::query($sql);
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$count = Database::num_rows($result);
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if ($count > 0) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Get one specific glossary term data
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*
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* @param integer ID of the flossary term
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* @return mixed Array(glossary_id,glossary_title,glossary_comment,glossary_display_order) or false on error
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*
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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*/
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function get_glossary_information($glossary_id) {
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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$t_item_propery = Database :: get_course_table(TABLE_ITEM_PROPERTY);
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if (empty($glossary_id)) { return false; }
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$sql = "SELECT g.glossary_id AS glossary_id,
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g.name AS glossary_title,
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g.description AS glossary_comment,
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g.display_order AS glossary_display_order, session_id
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FROM $t_glossary g
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WHERE g.glossary_id = '".intval($glossary_id)."' ";
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$result = Database::query($sql);
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if ($result === false || Database::num_rows($result) != 1) {
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return false;
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}
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return Database::fetch_array($result);
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}
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/**
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* Delete a glossary term (and re-order all the others)
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*
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* @param integer The id of the glossary term to delete
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* @return bool True on success, false on failure
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function delete_glossary($glossary_id) {
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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if (empty($glossary_id)) { return false; }
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$sql = "DELETE FROM $t_glossary WHERE glossary_id='".Database::escape_string($glossary_id)."'";
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$result = Database::query($sql);
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if ($result === false or Database::affected_rows() < 1) { return false; }
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//update item_property (delete)
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api_item_property_update(api_get_course_info(), TOOL_GLOSSARY, Database::escape_string($glossary_id), 'delete', api_get_user_id());
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// reorder the remaining terms
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GlossaryManager::reorder_glossary();
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$_SESSION['max_glossary_display'] = GlossaryManager::get_max_glossary_item();
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Display::display_confirmation_message(get_lang('TermDeleted'));
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return true;
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}
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/**
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* This is the main function that displays the list or the table with all
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* the glossary terms
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* @param string View ('table' or 'list'). Optional parameter. Defaults to 'table' and prefers glossary_view from the session by default.
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* @return void
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function display_glossary($view = 'table') {
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// This function should always be called with the corresponding
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// parameter for view type. Meanwhile, use this cheap trick.
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if (empty($_SESSION['glossary_view'])) {
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$_SESSION['glossary_view'] = $view;
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}
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// action links
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echo '<div class="actions" style="margin-bottom:10px">';
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if (api_is_allowed_to_edit(null,true)) {
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echo '<a href="index.php?'.api_get_cidreq().'&action=addglossary&msg=add">'.Display::return_icon('new_glossary_term.png',get_lang('TermAddNew'),'','32').'</a>';
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}
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if ((isset($_SESSION['glossary_view']) && $_SESSION['glossary_view'] == 'table') or (!isset($_SESSION['glossary_view']))){
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echo '<a href="index.php?'.api_get_cidreq().'&action=changeview&view=list">'.Display::return_icon('view_detailed.png',get_lang('ListView'),'','32').'</a>';
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} else {
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echo '<a href="index.php?'.api_get_cidreq().'&action=changeview&view=table">'.Display::return_icon('view_text.png',get_lang('TableView'),'','32').'</a>';
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}
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echo '</div>';
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if (!$_SESSION['glossary_view'] OR $_SESSION['glossary_view'] == 'table') {
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$table = new SortableTable('glossary', array('GlossaryManager','get_number_glossary_terms'), array('GlossaryManager','get_glossary_data'),0);
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$table->set_header(0, get_lang('DisplayOrder'), true);
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$table->set_header(1, get_lang('TermName'), true);
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$table->set_header(2, get_lang('TermDefinition'), true);
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$table->set_header(3, get_lang('CreationDate'), false);
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$table->set_header(4, get_lang('UpdateDate'), false);
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if (api_is_allowed_to_edit(null,true)) {
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$table->set_header(5, get_lang('Actions'), false, 'width=90px');
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$table->set_column_filter(5, array('GlossaryManager','actions_filter'));
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}
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$table->display();
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}
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if ($_SESSION['glossary_view'] == 'list') {
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GlossaryManager::display_glossary_list();
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}
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}
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/**
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* Display the glossary terms in a list
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* @return bool True
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function display_glossary_list() {
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$glossary_data = GlossaryManager::get_glossary_data(0,1000,0,ASC);
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foreach($glossary_data as $key=>$glossary_item) {
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echo '<div class="sectiontitle">'.$glossary_item[1].'</div>';
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echo '<div class="sectioncomment">'.$glossary_item[2].'</div>';
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if (api_is_allowed_to_edit(null,true)) {
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echo '<div>'.GlossaryManager::actions_filter($glossary_item[5], '',$glossary_item).'</div>';
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}
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}
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return true;
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}
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/**
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* Get the number of glossary terms in the course (or course+session)
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* @param int Session ID filter (optional)
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* @return integer Count of glossary terms
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*
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function get_number_glossary_terms($session_id=0) {
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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$session_id = intval($session_id);
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$sql_filter = api_get_session_condition($session_id, true, true);
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$sql = "SELECT count(glossary_id) as total FROM $t_glossary ".
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" WHERE 1=1 $sql_filter";
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$res = Database::query($sql);
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if ($res === false) { return 0; }
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$obj = Database::fetch_object($res);
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return $obj->total;
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}
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/**
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* Get all the data of a glossary
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*
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* @param integer From which item
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* @param integer Number of items to collect
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* @param string Name of column on which to order
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* @param string Whether to sort in ascending (ASC) or descending (DESC)
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* @return unknown
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*
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* @author Patrick Cool <patrick.cool@ugent.be>
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* @author Julio Montoya fixing this function, adding intvals
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* @version januari 2009, dokeos 1.8.6
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*/
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function get_glossary_data($from, $number_of_items, $column, $direction) {
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global $_user;
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// Database table definition
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$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
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$t_item_propery = Database :: get_course_table(TABLE_ITEM_PROPERTY);
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if (api_is_allowed_to_edit(null,true)) {
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$col5 = ", glossary.glossary_id as col5";
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} else {
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$col5 = " ";
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}
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//condition for the session
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$session_id = api_get_session_id();
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$condition_session = api_get_session_condition($session_id, true, true);
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$column = intval($column);
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if (!in_array($direction,array('DESC', 'ASC'))) {
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$direction = 'DESC';
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}
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$from = intval($from);
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$number_of_items = intval($number_of_items);
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$sql = "SELECT
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glossary.display_order as col0,
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glossary.name as col1,
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glossary.description as col2,
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ip.insert_date as col3,
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ip.lastedit_date as col4
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$col5,
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glossary.session_id as session_id
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FROM $t_glossary glossary, $t_item_propery ip
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WHERE glossary.glossary_id = ip.ref
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AND tool = '".TOOL_GLOSSARY."' $condition_session";
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$sql .= " ORDER BY col$column $direction ";
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$sql .= " LIMIT $from,$number_of_items";
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$res = Database::query($sql);
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$return = array();
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$array = array();
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while ($data = Database::fetch_array($res)) {
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$array[0] = $data[0];
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//validacion when belongs to a session
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$session_img = api_get_session_image($data['session_id'], $_user['status']);
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$array[1] = $data[1] . $session_img;
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if (!$_SESSION['glossary_view'] || $_SESSION['glossary_view'] == 'table') {
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$array[2] = str_replace(array('<p>','</p>'),array('','<br />'),$data[2]);
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} else {
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$array[2] = $data[2];
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}
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$array[3] = $data[3];
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$array[4] = $data[4];
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if (api_is_allowed_to_edit(null,true)) {
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$array[5] = $data[5];
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}
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// Date treatment for timezones
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$array[3] = api_get_local_time($array[3], null, date_default_timezone_get());
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$array[4] = api_get_local_time($array[4], null, date_default_timezone_get());
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$return[] = $array;
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}
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return $return;
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}
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/**
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* Update action icons column
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*
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* @param integer $glossary_id
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* @param array Parameters to use to affect links
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* @param array The line of results from a query on the glossary table
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* @return string HTML string for the action icons columns
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*
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* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
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* @version januari 2009, dokeos 1.8.6
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*/
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function actions_filter($glossary_id, $url_params, $row) {
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if (!$_SESSION['max_glossary_display'] OR $_SESSION['max_glossary_display'] == '') {
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$_SESSION['max_glossary_display'] = GlossaryManager::get_max_glossary_item();
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}
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if (empty($_GET['glossary_column'])) {
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if ($row[0] > 1) {
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$return .= '<a href="'.api_get_self().'?action=moveup&glossary_id='.$row[5].'&'.api_get_cidreq().'">'.Display::return_icon('up.png', get_lang('Up'),'',22).'</a>';
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} else {
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|
$return .= Display::return_icon('up_na.png',' ','',22);
|
|
}
|
|
|
|
if ($row[0] < $_SESSION['max_glossary_display']) {
|
|
$return .= '<a href="'.api_get_self().'?action=movedown&glossary_id='.$row[5].'&'.api_get_cidreq().'">'.Display::return_icon('down.png',get_lang('Down'),'',22).'</a>';
|
|
} else {
|
|
$return .= Display::return_icon('down_na.png',' ','',22);
|
|
|
|
}
|
|
}
|
|
$return .= '<a href="'.api_get_self().'?action=edit_glossary&glossary_id='.$row[5].'&'.api_get_cidreq().'&msg=edit">'.Display::return_icon('edit.png',get_lang('Edit'),'',22).'</a>';
|
|
$glossary_data = GlossaryManager::get_glossary_information($row[5]);
|
|
$glossary_term = $glossary_data['glossary_title'];
|
|
|
|
$return .= '<a href="'.api_get_self().'?action=delete_glossary&glossary_id='.$row[5].'&'.api_get_cidreq().'" onclick="return confirmation(\''.$glossary_term.'\');">'.Display::return_icon('delete.png', get_lang('Delete'),'',22).'</a>';
|
|
|
|
if (api_is_allowed_to_edit(null, true)) {
|
|
if ($glossary_data['session_id'] != api_get_session_id()) {
|
|
$return = get_lang('EditionNotAvailableFromSession');
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* a little bit of javascript to display a prettier warning when deleting a term
|
|
*
|
|
* @return string HTML string including JavaScript
|
|
*
|
|
* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
|
|
* @version januari 2009, dokeos 1.8.6
|
|
*/
|
|
function javascript_glossary() {
|
|
return "<script type=\"text/javascript\">
|
|
function confirmation (name) {
|
|
if (confirm(\" ". get_lang("TermConfirmDelete") ." \"+ name + \" ?\"))
|
|
{return true;}
|
|
else
|
|
{return false;}
|
|
}
|
|
</script>";
|
|
}
|
|
|
|
/**
|
|
* Re-order glossary
|
|
*
|
|
* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
|
|
* @version januari 2009, dokeos 1.8.6
|
|
*/
|
|
function reorder_glossary() {
|
|
// Database table definition
|
|
$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
|
|
|
|
$sql = "SELECT * FROM $t_glossary ORDER by display_order ASC";
|
|
$res = Database::query($sql);
|
|
|
|
$i = 1;
|
|
while ($data = Database::fetch_array($res)) {
|
|
$sql_reorder = "UPDATE $t_glossary SET display_order = $i WHERE glossary_id = '".Database::escape_string($data['glossary_id'])."'";
|
|
Database::query($sql_reorder);
|
|
$i++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Move a glossary term
|
|
*
|
|
* @param unknown_type $direction
|
|
* @param unknown_type $glossary_id
|
|
*
|
|
* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
|
|
* @version januari 2009, dokeos 1.8.6
|
|
*/
|
|
function move_glossary($direction, $glossary_id) {
|
|
// Database table definition
|
|
$t_glossary = Database :: get_course_table(TABLE_GLOSSARY);
|
|
|
|
// sort direction
|
|
if ($direction == 'up') {
|
|
$sortorder = 'DESC';
|
|
} else {
|
|
$sortorder = 'ASC';
|
|
}
|
|
|
|
$sql = "SELECT * FROM $t_glossary ORDER BY display_order $sortorder";
|
|
$res = Database::query($sql);
|
|
$found = false;
|
|
while ($row = Database::fetch_array($res)) {
|
|
if ($found && empty($next_id)) {
|
|
$next_id = $row['glossary_id'];
|
|
$next_display_order = $row['display_order'];
|
|
}
|
|
|
|
if ($row['glossary_id'] == $glossary_id) {
|
|
$current_id = $glossary_id;
|
|
$current_display_order = $row['display_order'];
|
|
$found = true;
|
|
}
|
|
}
|
|
$sql1 = "UPDATE $t_glossary SET display_order = '".Database::escape_string($next_display_order)."' WHERE glossary_id = '".Database::escape_string($current_id)."'";
|
|
$sql2 = "UPDATE $t_glossary SET display_order = '".Database::escape_string($current_display_order)."' WHERE glossary_id = '".Database::escape_string($next_id)."'";
|
|
$res = Database::query($sql1);
|
|
$res = Database::query($sql2);
|
|
|
|
Display::display_confirmation_message(get_lang('TermMoved'));
|
|
}
|
|
} |