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133 lines
3.3 KiB
133 lines
3.3 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 user management.
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* Include/require it in your code to use its functionality.
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*
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* @package chamilo.library
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*/
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/**
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*
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* Manage the "versioning" of a conditional survey
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* @package chamilo.survey
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* */
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class SurveyTree {
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public $surveylist;
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public $plainsurveylist;
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public $numbersurveys;
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/**
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* Sets the surveylist and the plainsurveylist
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*/
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public function __construct() {
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// Database table definitions
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$table_survey = Database :: get_course_table(TABLE_SURVEY);
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$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
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$table_user = Database :: get_main_table(TABLE_MAIN_USER);
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// searching
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$search_restriction = SurveyUtil::survey_search_restriction();
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if ($search_restriction) {
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$search_restriction = ' AND '.$search_restriction;
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}
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$course_id = api_get_course_int_id();
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$sql = "SELECT survey.survey_id , survey.parent_id, survey_version, survey.code as name
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FROM $table_survey survey LEFT JOIN $table_survey_question survey_question
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ON survey.survey_id = survey_question.survey_id , $table_user user
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WHERE
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survey.c_id = $course_id AND
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survey_question.c_id = $course_id AND
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survey.author = user.user_id
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GROUP BY survey.survey_id";
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$res = Database::query($sql);
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$surveys_parents = array ();
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$refs = array();
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$list = array();
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$last=array();
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$plain_array=array();
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while ($survey = Database::fetch_array($res,'ASSOC'))
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{
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$plain_array[$survey['survey_id']]=$survey;
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$surveys_parents[]=$survey['survey_version'];
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$thisref = &$refs[ $survey['survey_id'] ];
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$thisref['parent_id'] = $survey['parent_id'];
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$thisref['name'] = $survey['name'];
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$thisref['id'] = $survey['survey_id'];
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$thisref['survey_version'] = $survey['survey_version'];
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if ($survey['parent_id'] == 0)
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{
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$list[ $survey['survey_id'] ] = &$thisref;
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}
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else
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{
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$refs[ $survey['parent_id'] ]['children'][ $survey['survey_id'] ] = &$thisref;
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}
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}
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$this->surveylist = $list;
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$this->plainsurveylist = $plain_array;
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}
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/**
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* This function gets the parent id of a survey
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*
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* @param int survey id
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* @return int survey parent id
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*
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* @author Julio Montoya <gugli100@gmail.com>, Dokeos
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* @version September 2008
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*/
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public function getParentId ($id) {
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$node = $this->plainsurveylist[$id];
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if (is_array($node)&& !empty($node['parent_id']))
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return $node['parent_id'];
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else
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return -1;
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}
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/**
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* This function creates a list of all surveys id
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* @param list of nodes
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* @return array with the structure survey_id => survey_name
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* @author Julio Montoya <gugli100@gmail.com>, Dokeos
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* @version September 2008
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*
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*/
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public function createList ($list) {
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$result=array();
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if(is_array($list)) {
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foreach ($list as $key=>$node) {
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if (is_array($node['children']))
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{
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//echo $key; echo '--<br>';
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//print_r($node);
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//echo '<br>';
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$result[$key]= $node['name'];
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$re=self::createList($node['children']);
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if (!empty($re))
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{
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if (is_array($re))
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foreach ($re as $key=>$r)
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{
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$result[$key]=''.$r;
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}
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else
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{
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$result[]=$re;
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}
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}
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}
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else
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{
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//echo $key; echo '-<br>';
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$result[$key]=$node['name'];
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}
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}
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}
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return $result;
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}
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} |