<?php
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium, info@dokeos.com
==============================================================================
*/
/**
* @package dokeos.survey
* @author unknown, the initial survey that did not make it in 1.8 because of bad code
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University: cleanup, refactoring and rewriting large parts of the code
* @author Julio Montoya Armas < gugli100 @ gmail . com > , Dokeos: Personality Test modification and rewriting large parts of the code
* @version $Id: survey_list.php 10680 2007-01-11 21:26:23Z pcool $
*
* @todo use quickforms for the forms
* @todo check if the user already filled the survey and if this is the case then the answers have to be updated and not stored again.
* alterantively we could not allow people from filling the survey twice.
* @todo performance could be improved if not the survey_id was stored with the invitation but the survey_code
*/
// name of the language file that needs to be included
$language_file = 'survey';
// unsetting the course id (because it is in the URL)
if (!isset($_GET['cidReq']))
{
$cidReset = true;
}
else
{
$_cid = $_GET['cidReq'];
}
// including the global dokeos file
require ('../inc/global.inc.php');
// including additional libraries
//require_once (api_get_path(LIBRARY_PATH)."survey.lib.php");
require_once('survey.lib.php');
require_once (api_get_path(LIBRARY_PATH).'course.lib.php');
// breadcrumbs
if (!empty($_user))
{
$interbreadcrumb[] = array ("url" => 'survey_list.php', 'name' => get_lang('SurveyList'));
}
// Header
Display :: display_header(get_lang('Survey'));
// getting all the course information
$_course = CourseManager::get_course_information($_GET['course']);
// Database table definitions
$table_survey = Database :: get_course_table(TABLE_SURVEY, $_course['db_name']);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER, $_course['db_name']);
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION, $_course['db_name']);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION, $_course['db_name']);
$table_course = Database :: get_main_table(TABLE_MAIN_COURSE);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION, $_course['db_name']);
// first we check if the needed parameters are present
if (!isset($_GET['course']) OR !isset($_GET['invitationcode']))
{
Display :: display_error_message(get_lang('SurveyParametersMissingUseCopyPaste'), false);
Display :: display_footer();
exit;
}
// now we check if the invitationcode is valid
$sql = "SELECT * FROM $table_survey_invitation WHERE invitation_code = '".Database::escape_string($_GET['invitationcode'])."'";
$result = api_sql_query($sql, __FILE__, __LINE__);
if (Database::num_rows($result) < 1 )
{
Display :: display_error_message(get_lang('WrongInvitationCode'), false);
Display :: display_footer();
exit;
}
$survey_invitation = Database::fetch_array($result,'ASSOC');
// now we check if the user already filled the survey
if ($survey_invitation['answered'] == 1)
{
Display :: display_error_message(get_lang('YouAlreadyFilledThisSurvey'), false);
Display :: display_footer();
exit;
}
// checking if there is another survey with this code.
// If this is the case there will be a language choice
$sql = "SELECT * FROM $table_survey WHERE code='".Database::escape_string($survey_invitation['survey_code'])."'";
$result = api_sql_query($sql, __FILE__, __LINE__);
if (Database::num_rows($result) > 1)
{
if ($_POST['language'])
{
$survey_invitation['survey_id'] = $_POST['language'];
}
else
{
echo '< form id = "language" name = "language" method = "POST" action = "'.api_get_self().'?course='.$_GET['course'].'&invitationcode='.$_GET['invitationcode'].'&cidReq='.$_GET['cidReq'].'" > ';
echo ' < select name = "language" > ';
while ($row=Database::fetch_array($result,'ASSOC'))
{
echo '< option value = "'.$row['survey_id'].'" > '.$row['lang'].'< / option > ';
}
echo '< / select > ';
echo ' < input type = "submit" name = "Submit" value = "'.get_lang('Ok').'" / > ';
echo '< / form > ';
display::display_footer();
exit;
}
}
else
{
$row=Database::fetch_array($result,'ASSOC');
$survey_invitation['survey_id'] = $row['survey_id'];
}
// getting the survey information
$survey_data = survey_manager::get_survey($survey_invitation['survey_id']);
$survey_data['survey_id'] = $survey_invitation['survey_id'];
//print_r($survey_data);
// storing the answers
if (count($_POST)>0)
{
if ($survey_data['survey_type']==='0')
{
// getting all the types of the question (because of the special treatment of the score question type
$sql = "SELECT * FROM $table_survey_question WHERE survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = Database::fetch_array($result,'ASSOC'))
{
$types[$row['question_id']] = $row['type'];
}
// looping through all the post values
foreach ($_POST as $key=>$value)
{
// if the post value key contains the string 'question' then it is an answer on a question
if (strstr($key,'question'))
{
// finding the question id by removing 'question'
$survey_question_id = str_replace('question', '',$key);
// if the post value is an array then we have a multiple response question or a scoring question type
// remark: when it is a multiple response then the value of the array is the option_id
// when it is a scoring question then the key of the array is the option_id and the value is the value
if (is_array($value))
{
SurveyUtil::remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id);
foreach ($value as $answer_key => $answer_value)
{
if ($types[$survey_question_id] == 'score')
{
$option_id = $answer_key;
$option_value = $answer_value;
}
else
{
$option_id = $answer_value;
$option_value = '';
}
SurveyUtil::store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $option_id, $option_value, $survey_data);
}
}
// all the other question types (open question, multiple choice, percentage, ...)
else
{
if ($types[$survey_question_id] == 'percentage')
{
$sql = "SELECT * FROM $table_survey_question_option WHERE question_option_id='".Database::escape_string($value)."'";
$result = api_sql_query($sql, __FILE__, __LINE__);
$row = Database::fetch_array($result,'ASSOC');
$option_value = $row['option_text'];
}
else
{
$option_value = 0;
if($types[$survey_question_id] == 'open')
{
$option_value = $value;
//$value = 0;
}
}
$survey_question_answer = $value;
SurveyUtil::remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id);
SurveyUtil::store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $value, $option_value, $survey_data);
//SurveyUtil::store_answer($user,$survey_id,$question_id, $option_id, $option_value, $survey_data);
}
}
}
}
elseif ($survey_data['survey_type']==='1') //conditional/personality-test type surveys
{
// getting all the types of the question (because of the special treatment of the score question type
$shuffle='';
if ($survey_data['shuffle']=='1')
{
$shuffle= ' ORDER BY RAND() ' ;
}
$sql = "SELECT * FROM $table_survey_question
WHERE survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
AND survey_group_pri='0' $shuffle
";
$result = api_sql_query($sql, __FILE__, __LINE__);
// there is only one question type for conditional surveys
while ($row = Database::fetch_array($result,'ASSOC'))
{
$types[$row['question_id']] = $row['type'];
}
// looping through all the post values
foreach ($_POST as $key=>$value)
{
// if the post value key contains the string 'question' then it is an answer to a question
if (strstr($key,'question'))
{
// finding the question id by removing 'question'
$survey_question_id = str_replace('question', '',$key);
// we select the correct answer and the puntuacion
$sql = "SELECT value FROM $table_survey_question_option " .
" WHERE question_option_id='".Database::escape_string($value)."'";
$result = api_sql_query($sql, __FILE__, __LINE__);
$row = Database::fetch_array($result,'ASSOC');
$option_value = $row['value'];
//$option_value = 0;
$survey_question_answer = $value;
//we save the answer after making sure that a possible previous attempt is deleted
SurveyUtil::remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id);
SurveyUtil::store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $value, $option_value, $survey_data);
//SurveyUtil::store_answer($user,$survey_id,$question_id, $option_id, $option_value, $survey_data);
}
}
}
else //in case it's another type than 0 or 1
{
die(get_lang('ErrorSurveyTypeUnknown'));
}
}
// displaying the survey title and subtitle (appears on every page)
echo '< div id = "survey_title" > '.$survey_data['survey_title'].'< / div > ';
echo '< div id = "survey_subtitle" > '.$survey_data['survey_subtitle'].'< / div > ';
// checking time availability
$start_date = mktime(0,0,0,substr($survey_data['start_date'],5,2),substr($survey_data['start_date'],8,2),substr($survey_data['start_date'],0,4));
$end_date = mktime(0,0,0,substr($survey_data['end_date'],5,2),substr($survey_data['end_date'],8,2),substr($survey_data['end_date'],0,4));
$cur_date = time();
if($cur_date < $start_date)
{
Display :: display_warning_message(get_lang('SurveyNotAvailableYet'), false);
Display :: display_footer();
exit;
}
if($cur_date > $end_date)
{
Display :: display_warning_message(get_lang('SurveyNotAvailableAnymore'), false);
Display :: display_footer();
exit;
}
// displaying the survey introduction
if (!isset($_GET['show']))
{
echo '< div id = "survey_content" class = "survey_content" > '.$survey_data['survey_introduction'].'< / div > ';
$limit = 0;
}
// displaying the survey thanks message
if (isset($_POST['finish_survey']))
{
echo '< div id = "survey_content" class = "survey_content" > < strong > '.get_lang('SurveyFinished').'< / strong > < br / > '.$survey_data['survey_thanks'].'< / div > ';
survey_manager::update_survey_answered($survey_data['survey_id'], $survey_invitation['user'], $survey_invitation['survey_code']);
$_SESSION['paged_questios'] = array();
Display :: display_footer();
exit;
}
$shuffle='';
if ($survey_data['shuffle']==1)
{
$shuffle= ' BY RAND() ';
}
if ( isset($_GET['show']) || isset($_POST['personality']))
{
// Getting all the questions for this page and add them to a multidimensional array where the first index is the page.
// as long as there is no pagebreak fount we keep adding questions to the page
$questions_displayed = array();
$counter = 0;
$paged_questions = array();
// if non-conditional survey
if ($survey_data['survey_type']==='0')
{
if(empty($_SESSION['paged_questions']))
{
$sql = "SELECT * FROM $table_survey_question
WHERE survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
ORDER BY sort ASC";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = Database::fetch_array($result,'ASSOC'))
{
if($row['type'] == 'pagebreak')
{
$counter++;
}
else
{
// ids from question of the current survey
$paged_questions[$counter][] = $row['question_id'];
}
}
$_SESSION['paged_questions'] = $paged_questions;
}
else
{
$paged_questions = $_SESSION['paged_questions'];
}
if (key_exists($_GET['show'],$paged_questions))
{
$sql = "SELECT survey_question.survey_group_sec1, survey_question.survey_group_sec2, survey_question.survey_group_pri,
survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type, survey_question.max_value,
survey_question_option.question_option_id, survey_question_option.option_text, survey_question_option.sort as option_sort
FROM $table_survey_question survey_question
LEFT JOIN $table_survey_question_option survey_question_option
ON survey_question.question_id = survey_question_option.question_id
WHERE survey_question.survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
AND survey_question.question_id IN (".implode(',',$paged_questions[$_GET['show']]).")
ORDER BY survey_question.sort, survey_question_option.sort ASC";
$result = api_sql_query($sql, __FILE__, __LINE__);
$question_counter_max = Database::num_rows($result);
$counter = 0;
$limit=0;
$questions = array();
while ($row = Database::fetch_array($result,'ASSOC'))
{
// if the type is not a pagebreak we store it in the $questions array
if($row['type'] < > 'pagebreak')
{
$questions[$row['sort']]['question_id'] = $row['question_id'];
$questions[$row['sort']]['survey_id'] = $row['survey_id'];
$questions[$row['sort']]['survey_question'] = $row['survey_question'];
$questions[$row['sort']]['display'] = $row['display'];
$questions[$row['sort']]['type'] = $row['type'];
$questions[$row['sort']]['options'][$row['question_option_id']] = $row['option_text'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
}
// if the type is a pagebreak we are finished loading the questions for this page
else
{
break;
}
$counter++;
}
}
}
elseif ($survey_data['survey_type']==='1')
{
$my_survey_id=Database::escape_string($survey_invitation['survey_id']);
$current_user = Database::escape_string($survey_invitation['user']);
if (isset($_POST['personality']))
{
// Compute the results to get the 3 groups nearest to the user's personality
if ($shuffle=='')
$order = 'BY sort ASC ';
else
$order = $shuffle;
// get all the questions from the primary groups
/*
$sql = "SELECT * FROM $table_survey_question
WHERE survey_id = '".$my_survey_id."'
AND survey_group_sec1='0' AND survey_group_sec2='0'
ORDER $order ";
$result = api_sql_query($sql, __FILE__, __LINE__);
//Place each question in $page_group_questions[]
while ($row = Database::fetch_array($result,'ASSOC'))
{
$paged_group_questions[] = $row['question_id'];
//$paged_group[] = $row['survey_group_pri'];
}
*/
$answer_list=array();
// get current user results
$results=array();
$sql = "SELECT survey_group_pri, user, SUM(value) as value
FROM $table_survey_answer as survey_answer INNER JOIN $table_survey_question as survey_question
ON (survey_question.question_id = survey_answer.question_id)
WHERE survey_answer.survey_id='".$my_survey_id."' AND
survey_answer.user='".$current_user."'
GROUP BY survey_group_pri
ORDER BY survey_group_pri
";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = Database::fetch_array($result))
{
$answer_list['value']=$row['value'];
$answer_list['group']=$row['survey_group_pri'];
$results[]=$answer_list;
}
//echo "< br > ";print_r($results); echo "< br > ";
// get the total score for each group of questions
$totals=array();
$sql = "SELECT SUM(temp.value) as value, temp.survey_group_pri FROM
(SELECT MAX(value) as value, survey_group_pri, survey_question.question_id
FROM $table_survey_question as survey_question
INNER JOIN $table_survey_question_option as survey_question_option
ON (survey_question.question_id = survey_question_option.question_id)
WHERE survey_question.survey_id='".$my_survey_id."' AND survey_group_sec1='0' AND survey_group_sec2='0'
GROUP BY survey_group_pri, survey_question.question_id) as temp
GROUP BY temp.survey_group_pri
ORDER BY temp.survey_group_pri";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = Database::fetch_array($result))
{
$list['value']=$row['value'];
$list['group']=$row['survey_group_pri'];
$totals[]=$list;
}
//print_r($totals);
$final_results=array();
//get a percentage score for each group
for ($i=0; $i< count ( $ totals ) ; $ i + + )
{
for ($j=0; $j< count ( $ results ) ; $ j + + )
{
if ($totals[$i]['group']==$results[$j]['group'])
{
$group=$totals[$i]['group'];
$porcen=($results[$j]['value'] / $totals[$i]['value'] );
$final_results[$group]=$porcen;
}
}
}
// sort the results by score (getting a list of group IDs by score into $groups)
arsort($final_results);
$groups=array_keys($final_results);
/*
echo '< pre > ';
echo 'Group id => %';
echo "< br > ";
print_r($final_results);
echo '< / pre > ';
*/
$result=array();
foreach ($final_results as $key =>$sub_result)
{
$result[]=array('group'=>$key, 'value'=>$sub_result);
}
$i=0;
$group_cant=0;
$equal_count=0;
/*
//i.e 70% - 70% -70% 70% $equal_count =3
while(1)
{
if ($result[$i]['value'] == $result[$i+1]['value'])
{
$equal_count++;
}
else
{
break;
}
$i++;
}
echo 'eq'. $equal_count;
echo "< br > ";
if ($equal_count==0)
{
//i.e 70% 70% -60% 60% $equal_count = 1 only we get the first 2 options
if ( ($result[0]['value'] == $result[1]['value']) & & ($result[2]['value']==$result[3]['value']) )
{
$group_cant=1;
}
else
{ // by default we chose the highest 3
$group_cant=2;
}
}
elseif ($equal_count==2)
{
$group_cant=2;
}
else
{
$group_cant=-1;
}
*/
//i.e 70% - 70% -70% 70% $equal_count =3
// Count the number of scores equal to the first
while(1)
{
if ($result[$i]['value'] == $result[$i+1]['value'])
{
$equal_count++;
}
else
{
break;
}
$i++;
}
// if we have only 3 or less equal scores (i.e. 0,1 or 2 equalities), then we can use the three first groups
if ($equal_count< 4 )
{
//if there is one or less score equalities
if ($equal_count==0 || $equal_count==1 )
{
//i.e 70% - 70% -0% - 0% - $equal_count = 0 we only get the first 2 options
if ( ($result[0]['value'] == $result[1]['value']) & & ($result[2]['value']==0 ) )
{
$group_cant=0;
}
//i.e 70% - 70% -60% - 60% $equal_count = 0 we only get the first 2 options
elseif ( ($result[0]['value'] == $result[1]['value']) & & ($result[2]['value'] == $result[3]['value']) )
{
$group_cant=0;
}
//i.e. 70% - 70% - 70%
elseif ( ($result[1]['value'] == $result[2]['value']) & & ($result[2]['value'] == $result[3]['value']) )
{
$group_cant=1;
}
else
{ // by default we choose the highest 3
$group_cant=2;
}
}
else
{
//if there are two score equalities
$group_cant=$equal_count;
}
// conditional_status
// 0 no determinado
// 1 determinado
// 2 un solo valor
// 3 valores iguales
if ($group_cant>0)
{
//echo '$equal_count'.$group_cant;
// we only get highest 3
$secondary ='';
$combi='';
for ($i=0; $i< = $group_cant ;$i++)
{
$group1=$groups[$i];
$group2=$groups[$i+1];
// here we made all the posibilities with the 3 groups
if ( $group_cant == 2 & & $i==$group_cant)
{
$group2=$groups[0];
$secondary .= " OR ( survey_group_sec1 = '$group1' AND survey_group_sec2 = '$group2') ";
$secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
$combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1."< br > ";
}
else
{
if ($i!=0 )
{
$secondary .= " OR ( survey_group_sec1 = '$group1' AND survey_group_sec2 = '$group2') ";
$secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
$combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1."< br > ";
}
else
{
$secondary .= " ( survey_group_sec1 = '$group1' AND survey_group_sec2 = '$group2') ";
$secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
$combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1."< br > ";
}
}
}
/*
echo '< pre > ';
echo "Pair of Groups < br / > < br / > ";
echo $combi;
echo '< / pre > ';
*/
// create the new select with the questions from the secondary phase
if(empty($_SESSION['page_questions_sec']))
{
$sql = "SELECT * FROM $table_survey_question
WHERE survey_id = '".$my_survey_id."'
AND ($secondary )
ORDER BY sort ASC";
$result = api_sql_query($sql, __FILE__, __LINE__);
$counter=0;
while ($row = Database::fetch_array($result,'ASSOC'))
{
if ($survey_data['one_question_per_page']==1)
{
$paged_questions_sec[$counter][] = $row['question_id'];
$counter++;
}
else
if($row['type'] == 'pagebreak')
{
$counter++;
}
else
{
// ids from question of the current survey
$paged_questions_sec[$counter][] = $row['question_id'];
}
}
$_SESSION['paged_questions_sec'] = $paged_questions_sec;
}
else
{
$paged_questions_sec = $_SESSION['paged_questions_sec'];
}
$paged_questions = $_SESSION['paged_questions']; //for the sake of pages counting
//$paged_questions = $paged_questions_sec; //for the sake of pages counting coming up at display time...
if ($shuffle=='')
$shuffle=' BY survey_question.sort, survey_question_option.sort ASC ';
//$val=0;
//if ($survey_data['one_question_per_page']==0)
//{
$val=(int)$_POST['personality'];
//}
$sql = "SELECT survey_question.survey_group_sec1, survey_question.survey_group_sec2, survey_question.survey_group_pri,
survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type, survey_question.max_value,
survey_question_option.question_option_id, survey_question_option.option_text, survey_question_option.sort as option_sort
FROM $table_survey_question survey_question
LEFT JOIN $table_survey_question_option survey_question_option
ON survey_question.question_id = survey_question_option.question_id
WHERE survey_question.survey_id = '".$my_survey_id."'
AND survey_question.question_id IN (".implode(',',$paged_questions_sec[$val]).")
ORDER $shuffle ";
$result = api_sql_query($sql, __FILE__, __LINE__);
$question_counter_max = Database::num_rows($result);
$counter = 0;
$limit=0;
$questions = array();
while ($row = Database::fetch_array($result,'ASSOC'))
{
// if the type is not a pagebreak we store it in the $questions array
if($row['type'] < > 'pagebreak')
{
$questions[$row['sort']]['question_id'] = $row['question_id'];
$questions[$row['sort']]['survey_id'] = $row['survey_id'];
$questions[$row['sort']]['survey_question'] = $row['survey_question'];
$questions[$row['sort']]['display'] = $row['display'];
$questions[$row['sort']]['type'] = $row['type'];
$questions[$row['sort']]['options'][$row['question_option_id']] = $row['option_text'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
// personality params
$questions[$row['sort']]['survey_group_sec1'] = $row['survey_group_sec1'];
$questions[$row['sort']]['survey_group_sec2'] = $row['survey_group_sec2'];
$questions[$row['sort']]['survey_group_pri'] = $row['survey_group_pri'];
}
// if the type is a pagebreak we are finished loading the questions for this page
else
{
break;
}
$counter++;
}
}
else
{
echo get_lang('SurveyUndetermined');
}
}
else
{
echo get_lang('SurveyUndetermined');
}
}
else
{
// only the questions from the basic group
//the 50 questions A B C D E F G
$order_sql= $shuffle;
if ($shuffle=='')
$order_sql=' BY question_id ';
if(empty($_SESSION['paged_questions']))
{
$sql = "SELECT * FROM $table_survey_question
WHERE survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
AND survey_group_sec1='0' AND survey_group_sec2='0'
ORDER ".$order_sql." ";
//echo "< br > ";echo "< br > ";
$result = api_sql_query($sql, __FILE__, __LINE__);
$counter=0;
while ($row = Database::fetch_array($result,'ASSOC'))
{
if ($survey_data['one_question_per_page']==1)
{
$paged_questions[$counter][] = $row['question_id'];
$counter++;
}
else
{
if($row['type'] == 'pagebreak')
{
$counter++;
}
else
{
// ids from question of the current survey
$paged_questions[$counter][] = $row['question_id'];
}
}
}
$_SESSION['paged_questions'] = $paged_questions;
}
else
{
$paged_questions = $_SESSION['paged_questions'];
}
//print_r($paged_questions);
//if (key_exists($_GET['show'],$paged_questions))
//{
$order_sql= $shuffle;
if ($shuffle=='')
$order_sql=' BY survey_question.sort, survey_question_option.sort ASC ';
//$val=0;
//if ($survey_data['one_question_per_page']==0)
//{
$val=$_GET['show'];
//}
$sql = "SELECT survey_question.survey_group_sec1, survey_question.survey_group_sec2, survey_question.survey_group_pri,
survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type, survey_question.max_value,
survey_question_option.question_option_id, survey_question_option.option_text, survey_question_option.sort as option_sort
FROM $table_survey_question survey_question
LEFT JOIN $table_survey_question_option survey_question_option
ON survey_question.question_id = survey_question_option.question_id
WHERE survey_question.survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
AND survey_question.question_id IN (".implode(',',$paged_questions[$val]).")
ORDER $order_sql ";
$result = api_sql_query($sql, __FILE__, __LINE__);
$question_counter_max = Database::num_rows($result);
$counter = 0;
$limit=0;
$questions = array();
while ($row = Database::fetch_array($result,'ASSOC'))
{
// if the type is not a pagebreak we store it in the $questions array
if($row['type'] < > 'pagebreak')
{
$questions[$row['sort']]['question_id'] = $row['question_id'];
$questions[$row['sort']]['survey_id'] = $row['survey_id'];
$questions[$row['sort']]['survey_question'] = $row['survey_question'];
$questions[$row['sort']]['display'] = $row['display'];
$questions[$row['sort']]['type'] = $row['type'];
$questions[$row['sort']]['options'][$row['question_option_id']] = $row['option_text'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
// personality params
$questions[$row['sort']]['survey_group_sec1'] = $row['survey_group_sec1'];
$questions[$row['sort']]['survey_group_sec2'] = $row['survey_group_sec2'];
$questions[$row['sort']]['survey_group_pri'] = $row['survey_group_pri'];
}
// if the type is a pagebreak we are finished loading the questions for this page
else
{
break;
}
$counter++;
}
}
}
else //in case it's another type than 0 or 1
{
echo get_lang('ErrorSurveyTypeUnknown');
}
}
// selecting the maximum number of pages
$sql = "SELECT * FROM $table_survey_question WHERE type='".Database::escape_string('pagebreak')."' AND survey_id='".Database::escape_string($survey_invitation['survey_id'])."'";
$result = api_sql_query($sql, __FILE__, __LINE__);
$numberofpages = Database::num_rows($result) + 1;
// Displaying the form with the questions
if (isset($_GET['show']))
{
$show = (int)$_GET['show'] + 1;
}
else
{
$show = 0;
}
// Displaying the form with the questions
if (isset($_POST['personality']))
{
$personality = (int)$_POST['personality'] + 1;
}
else
{
$personality= 0;
}
// Displaying the form with the questions
$g_c = (isset($_GET['course'])?Security::remove_XSS($_GET['course']):'');
$g_ic = (isset($_GET['invitationcode'])?Security::remove_XSS($_GET['invitationcode']):'');
$g_cr = (isset($_GET['cidReq'])?Security::remove_XSS($_GET['cidReq']):'');
$p_l = (isset($_POST['language'])?Security::remove_XSS($_POST['language']):'');
echo '< form id = "question" name = "question" method = "post" action = "'.api_get_self().'?course='.$g_c.'&invitationcode='.$g_ic.'&show='.$show.'&cidReq='.$g_cr.'" > ';
echo '< input type = "hidden" name = "language" value = "'.$p_l.'" / > ';
if(isset($questions) & & is_array($questions))
{
foreach ($questions as $key=>$question)
{
$display = new $question['type'];
$display->render_question($question);
}
}
if ($survey_data['survey_type']==='0')
{
if (($show < $numberofpages) || !$_GET['show']) //$show = $_GET['show']+1
{
//echo '< a href = "'.api_get_self().'?survey_id='.$survey_invitation['survey_id'].'&show='.$limit.'" > NEXT< / a > ';
echo '< input type = "submit" name = "next_survey_page" value = "'.get_lang('Next').' >> " / > ';
}
if ($show >= $numberofpages & & $_GET['show'])
{
echo '< input type = "submit" name = "finish_survey" value = "'.get_lang('FinishSurvey').' >> " / > ';
}
}
elseif ($survey_data['survey_type']==='1') //conditional/personality-test type survey
{
$numberofpages=count($paged_questions);
if(!empty($paged_questions_sec) & & count($paged_questions_sec)>0)
{ //in case we're in the second phase, also sum the second group questions
$numberofpages+=count($paged_questions_sec);
}
//echo $show.' / '.$numberofpages."< br / > ";
if (($show < $numberofpages) || !$_GET['show']) //$show = $_GET['show']+1
{
echo '< input type = "submit" name = "next_survey_page" value = "'.get_lang('Next').' >> " / > ';
/* YW - Commented because I don't believe this is right in any case
if ($survey_data['one_question_per_page']==0 & & $show!=0)
*/
if($personality>0)
{
echo '< input type = "hidden" name = "personality" value = "'.$personality.'" > ';
}
}
if ($show >= $numberofpages & & $_GET['show'] )
{
//if ($survey_data['one_question_per_page']==0)
//{
echo '< input type = "hidden" name = "personality" value = "'.$personality.'" > ';
//}
$numberofpages=count($paged_questions);
//echo $personality.' / '.$numberofpages;
//echo "< br / > ";
if ($personality > count($paged_questions_sec) -1 )
{
echo '< input type = "submit" name = "finish_survey" value = "'.get_lang('FinishSurvey').' >> " / > ';
}
else
{
echo '< input type = "submit" name = "next_survey_page" value = "'.get_lang('Next').' >> " / > ';
}
}
}
echo '< / form > ';
// Footer
Display :: display_footer();
?>
