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CATI_Tool/include/limesurvey/statistics_user.php

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<?php
/*
* LimeSurvey
* Copyright (C) 2007 The LimeSurvey Project Team / Carsten Schmitz
* All rights reserved.
* License: GNU/GPL License v2 or later, see LICENSE.php
* LimeSurvey is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*
* $Id: statistics_user.php 12008 2012-01-12 15:20:59Z gautamgupta $
*
*/
/*
* Created 12-2008 by Maziminke (maziminke@web.de)
*
* This file handles the "Show results to users" option:
* Survey Settings -> Presentation & navigation -> "Public statistics?"
*
* The admin can set a question attribute "public_statistics" for each question
* to determine whether the results of a certain question should be shown to the user
* after he/she has submitted the survey.
*
* See http://docs.limesurvey.org/tiki-index.php?page=Question+attributes#public_statistics
*/
//don't call this script directly!
if (isset($_REQUEST['homedir'])) {die('You cannot start this script directly');}
require_once(dirname(__FILE__).'/classes/core/startup.php');
require_once(dirname(__FILE__).'/config-defaults.php');
require_once(dirname(__FILE__).'/common.php');
require_once($homedir.'/classes/core/class.progressbar.php');
require_once(dirname(__FILE__).'/classes/core/language.php');
require_once($homedir.'/statistics_function.php');
//XXX enable/disable this for testing
//$publicgraphs = 1;
//$showaggregateddata = 1;
/*
* List of important settings:
* - publicstatistics: General survey setting which determines if public statistics for this survey
* should be shown at all.
*
* - publicgraphs: General survey setting which determines if public statistics for this survey
* should include graphs or only show a tabular overview.
*
* - public_statistics: Question attribute which has to be applied to each question so that
* its statistics will be shown to the user. If not set no statistics for this question will be shown.
*
* - filterout_incomplete_answers: Setting taken from config-defaults.php which determines if
* not completed answers will be filtered.
*/
$surveyid=returnglobal('sid');
$postlang = returnglobal('lang');
if (!$surveyid){
//This next line ensures that the $surveyid value is never anything but a number.
safe_die('You have to provide a valid survey ID.');
}
if ($surveyid)
{
$actquery="SELECT * FROM ".db_table_name('surveys')." WHERE sid=$surveyid and active='Y'";
$actresult=db_execute_assoc($actquery) or safe_die ("Couldn't access survey settings<br />$query<br />".$connect->ErrorMsg()); //Checked
if ($actresult->RecordCount() == 0) { safe_die('You have to provide a valid survey ID.'); }
else
{
$thissurvey=getSurveyInfo($surveyid);
// CHANGE JSW_NZ - let's get the survey title for display
$thisSurveyTitle = $thissurvey["name"];
// CHANGE JSW_NZ - let's get css from individual template.css - so define path
$thistpl = sgetTemplatePath($thissurvey["template"]);
if ($thissurvey['publicstatistics']!='Y')
{
safe_die('The public statistics for this survey are deactivated.');
}
//check if graphs should be shown for this survey
if ($thissurvey['publicgraphs']=='Y')
{
$publicgraphs = 1;
} else {
$publicgraphs = 0;
}
}
}
//we collect all the output within this variable
$statisticsoutput ='';
//for creating graphs we need some more scripts which are included here
//True -> include
//False -> forget about charts
if (isset($publicgraphs) && $publicgraphs == 1)
{
require_once('classes/pchart/pchart/pChart.class');
require_once('classes/pchart/pchart/pData.class');
require_once('classes/pchart/pchart/pCache.class');
$MyCache = new pCache($tempdir.'/');
//$currentuser is created as prefix for pchart files
if (isset($_SERVER['REDIRECT_REMOTE_USER']))
{
$currentuser=$_SERVER['REDIRECT_REMOTE_USER'];
}
elseif (session_id())
{
$currentuser=substr(session_id(), 0, 15);
}
else
{
$currentuser="standard";
}
}
// Set language for questions and labels to base language of this survey
if (isset($postlang) && $postlang != null )
$language = $postlang;
else
$language = GetBaseLanguageFromSurveyID($surveyid);
//pick the best font file if font setting is 'auto'
if ($chartfontfile=='auto')
{
$chartfontfile='vera.ttf';
if ( $language=='ar')
{
$chartfontfile='KacstOffice.ttf';
}
elseif ($language=='fa' )
{
$chartfontfile='KacstFarsi.ttf';
}
}
//set survey language for translations
$clang = SetSurveyLanguage($surveyid, $language);
//Create header
sendcacheheaders();
echo getHeader();
echo templatereplace(file_get_contents("$thistpl/startpage.pstpl"));
/*
* only show questions where question attribute "public_statistics" is set to "1"
*/
$query = "SELECT q.* , group_name, group_order\n"
."FROM ".db_table_name("questions")." q, ".db_table_name("groups")." g, ".db_table_name("question_attributes")." qa\n"
."WHERE g.gid=q.gid\n"
."AND g.language='".$language."'\n"
."AND q.language='".$language."'\n"
."AND q.sid={$surveyid}\n"
."AND q.qid=qa.qid\n"
."AND q.parent_qid=0\n"
."AND qa.attribute='public_statistics'\n";
if ($databasetype=='mssql_n' or $databasetype=='odbtp' or $databasetype=='odbc_mssql' or $databasetype=="mssqlnative")
{
$query .="AND CAST(CAST(qa.value as varchar) as int)='1'\n";
}
else
{
$query .="AND qa.value='1'\n";
}
//execute query
$result = db_execute_assoc($query) or safe_die("Couldn't do it!<br />$query<br />".$connect->ErrorMsg());
//store all the data in $rows
$rows = $result->GetRows();
//SORT IN NATURAL ORDER!
usort($rows, 'GroupOrderThenQuestionOrder');
//put the question information into the filter array
foreach ($rows as $row)
{
//store some column names in $filters array
$filters[]=array($row['qid'],
$row['gid'],
$row['type'],
$row['title'],
$row['group_name'],
FlattenText($row['question']));
}
//number of records for this survey
$totalrecords = 0;
//count number of answers
$query = "SELECT count(*) FROM ".db_table_name("survey_$surveyid");
//if incompleted answers should be filtert submitdate has to be not null
//this setting is taken from config-defaults.php
if ($filterout_incomplete_answers == true)
{
$query .= " WHERE ".db_table_name("survey_$surveyid").".submitdate is not null";
}
$result = db_execute_num($query) or safe_die ("Couldn't get total<br />$query<br />".$connect->ErrorMsg());
//$totalrecords = total number of answers
while ($row=$result->FetchRow())
{
$totalrecords=$row[0];
}
//this is the array which we need later...
$summary = array();
//...while this is the array from copy/paste which we don't want to replace because this is a nasty source of error
$allfields = array();
//---------- CREATE SGQA OF ALL QUESTIONS WHICH USE "PUBLIC_STATISTICS" ----------
/*
* let's go through the filter array which contains
* ['qid'],
['gid'],
['type'],
['title'],
['group_name'],
['question'];
*/
$currentgroup='';
// use to check if there are any question with public statistics
if(isset($filters)){
foreach ($filters as $flt)
{
//SGQ identifier
$myfield = "{$surveyid}X{$flt[1]}X{$flt[0]}";
//let's switch through the question type for each question
switch ($flt[2])
{
case "K": // Multiple Numerical
case "Q": // Multiple Short Text
//get answers
$query = "SELECT title as code, question as answer FROM ".db_table_name("questions")." WHERE parent_qid='$flt[0]' AND language = '{$language}' ORDER BY question_order";
$result = db_execute_num($query) or safe_die ("Couldn't get answers!<br />$query<br />".$connect->ErrorMsg());
//go through all the (multiple) answers
while ($row=$result->FetchRow())
{
$myfield2=$flt[2].$myfield.$row[0];
$allfields[] = $myfield2;
}
break;
case "A": // ARRAY OF 5 POINT CHOICE QUESTIONS
case "B": // ARRAY OF 10 POINT CHOICE QUESTIONS
case "C": // ARRAY OF YES\No\$clang->gT("Uncertain") QUESTIONS
case "E": // ARRAY OF Increase/Same/Decrease QUESTIONS
case "F": // FlEXIBLE ARRAY
case "H": // ARRAY (By Column)
//get answers
$query = "SELECT title as code, question as answer FROM ".db_table_name("questions")." WHERE parent_qid='$flt[0]' AND language = '{$language}' ORDER BY question_order";
$result = db_execute_num($query) or safe_die ("Couldn't get answers!<br />$query<br />".$connect->ErrorMsg());
//go through all the (multiple) answers
while ($row=$result->FetchRow())
{
$myfield2 = $myfield.$row[0];
$allfields[]=$myfield2;
}
break;
// all "free text" types (T, U, S) get the same prefix ("T")
case "T": // Long free text
case "U": // Huge free text
case "S": // Short free text
$myfield="T$myfield";
$allfields[] = $myfield;
break;
case ";": //ARRAY (Multi Flex) (Text)
case ":": //ARRAY (Multi Flex) (Numbers)
$query = "SELECT title, question FROM ".db_table_name("questions")." WHERE parent_qid='$flt[0]' AND language='{$language}' AND scale_id=0 ORDER BY question_order";
$result = db_execute_num($query) or die ("Couldn't get answers!<br />$query<br />".$connect->ErrorMsg());
while ($row=$result->FetchRow())
{
$fquery = "SELECT * FROM ".db_table_name("questions")." WHERE parent_qid={$flt[0]} AND language='{$language}' AND scale_id=1 ORDER BY question_order, title";
$fresult = db_execute_assoc($fquery);
while ($frow = $fresult->FetchRow())
{
$myfield2 = $myfield . $row[0] . "_" . $frow['title'];
$allfields[]=$myfield2;
}
}
break;
case "R": //RANKING
//get some answers
$query = "SELECT code, answer FROM ".db_table_name("answers")." WHERE qid='$flt[0]' AND language='{$language}' ORDER BY sortorder, answer";
$result = db_execute_assoc($query) or safe_die ("Couldn't get answers!<br />$query<br />".$connect->ErrorMsg());
//get number of answers
$count = $result->RecordCount();
//loop through all answers. if there are 3 items to rate there will be 3 statistics
for ($i=1; $i<=$count; $i++)
{
$myfield2 = "R" . $myfield . $i . "-" . strlen($i);
$allfields[]=$myfield2;
}
break;
//Boilerplate questions are only used to put some text between other questions -> no analysis needed
case "X": //This is a boilerplate question and it has no business in this script
break;
case "1": // MULTI SCALE
//get answers
$query = "SELECT title, question FROM ".db_table_name("questions")." WHERE parent_qid='$flt[0]' AND language='{$language}' ORDER BY question_order";
$result = db_execute_num($query) or safe_die ("Couldn't get answers!<br />$query<br />".$connect->ErrorMsg());
//loop through answers
while ($row=$result->FetchRow())
{
//----------------- LABEL 1 ---------------------
$myfield2 = $myfield . "$row[0]#0";
$allfields[]=$myfield2;
//----------------- LABEL 2 ---------------------
$myfield2 = $myfield . "$row[0]#1";
$allfields[]=$myfield2;
} //end WHILE -> loop through all answers
break;
case "P": //P - Multiple choice with comments
case "M": //M - Multiple choice
case "N": //N - Numerical input
case "D": //D - Date
$myfield2 = $flt[2].$myfield;
$allfields[]=$myfield2;
break;
default: //Default settings
$allfields[] = $myfield;
break;
} //end switch -> check question types and create filter forms
}
//end foreach -> loop through all questions with "public_statistics" enabled
}// end if -> for removing the error message in case there are no filters
$summary = $allfields;
//---------- CREATE STATISTICS ----------
//some progress bar stuff
// Create progress bar which is shown while creating the results
$prb = new ProgressBar();
$prb->pedding = 2; // Bar Pedding
$prb->brd_color = "#404040 #dfdfdf #dfdfdf #404040"; // Bar Border Color
$prb->setFrame(); // set ProgressBar Frame
$prb->frame['left'] = 50; // Frame position from left
$prb->frame['top'] = 80; // Frame position from top
$prb->addLabel('text','txt1',$clang->gT("Please wait ...")); // add Text as Label 'txt1' and value 'Please wait'
$prb->addLabel('percent','pct1'); // add Percent as Label 'pct1'
$prb->addButton('btn1',$clang->gT('Go back'),'?action=statistics&amp;sid='.$surveyid); // add Button as Label 'btn1' and action '?restart=1'
//progress bar starts with 35%
$process_status = 35;
$prb->show(); // show the ProgressBar
// 1: Get list of questions with answers chosen
//"Getting Questions and Answers ..." is shown above the bar
$prb->setLabelValue('txt1',$clang->gT('Getting questions and answers ...'));
$prb->moveStep(5);
// creates array of post variable names
for (reset($_POST); $key=key($_POST); next($_POST))
{
$postvars[]=$key;
}
//show some main data at the beginnung
// CHANGE JSW_NZ - let's allow html formatted questions to show
$statisticsoutput .= "\n<div id='statsContainer'>\n"
."\t<div id='statsHeader'> \n"
."\t\t<div class='statsSurveyTitle'>"
."$thisSurveyTitle</div>\n"
."\t\t<div class='statsNumRecords'>"
.$clang->gT("Total records in survey")." : $totalrecords</div>\n";
//close statsHeader
$statisticsoutput .= "\t</div>\n";
//push progress bar from 35 to 40
$process_status = 40;
//Show Summary results
if (isset($summary) && $summary)
{
//"Generating Summaries ..." is shown above the progress bar
$prb->setLabelValue('txt1',$clang->gT('Generating summaries ...'));
$prb->moveStep($process_status);
//let's run through the survey // Fixed bug 3053 with array_unique
$runthrough=array_unique($summary);
//loop through all selected questions
foreach ($runthrough as $rt)
{
//update progress bar
if ($process_status < 100) $process_status++;
$prb->moveStep($process_status);
} // end foreach -> loop through all questions
$statisticsoutput .= generate_statistics($surveyid, $summary, $summary, $publicgraphs, 'html',null,$language,false);
//output
$statisticsoutput .= "<br />\n"
. "</div>\n";
} //end if -> show summary results
//done! set progress bar to 100%
if (isset($prb))
{
$prb->setLabelValue('txt1',$clang->gT('Completed'));
$prb->moveStep(100);
$prb->hide();
}
//output everything:
echo $statisticsoutput;
echo templatereplace(file_get_contents("$thistpl/endpage.pstpl"));
//output footer
echo getFooter();
//Delete all Session Data
$_SESSION['finished'] = true;
?>
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