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common_helper.php
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common_helper.php
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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/*
* LimeSurvey
* Copyright (C) 2007-2011 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.
*/
Yii::import('application.helpers.sanitize_helper', true);
/**
* Simple function to sort the permissions by title
*
* @param mixed $aPermissionA Permission A to compare
* @param mixed $aPermissionB Permission B to compare
*/
function comparePermission($aPermissionA,$aPermissionB)
{
if($aPermissionA['title'] >$aPermissionB['title']) {
return 1;
}
else {
return -1;
}
}
/**
* getQuestionTypeList() Returns list of question types available in LimeSurvey. Edit this if you are adding a new
* question type
*
*
* @return returns a straight "array" of question types
*
* Explanation of questiontype array:
*
* description : Question description
* subquestions : 0= Does not support subquestions x=Number of subquestion scales
* answerscales : 0= Does not need answers x=Number of answer scales (usually 1, but e.g. for dual scale question set to 2)
* assessable : 0=Does not support assessment values when editing answerd 1=Support assessment values
*/
function getQuestionTypeList($type = false, $legacy = true) //AJS
{
$clang = Yii::app()->lang;
if ($type && $legacy) //AJS
{
$result = Question_types::model()->findByAttribute(array('legacy' => $type));
return createQuestion($result['class']);
} else if ($type) {
$result = Question_types::model()->findByAttribute(array('tid' => $type));
return createQuestion($result['class']);
}
$types = Question_types::model()->findAll();
if ($legacy) //AJS
{
foreach($types as $type)
{
$q = createQuestion($type['class']);
$qtypes[$type['legacy']] = $q->questionProperties();
}
} else {
foreach($types as $type)
{
$q = createQuestion($type['class']);
$qtypes[$type['tid']] = $q->questionProperties();
}
}
asort($qtypes);
return $qtypes;
}
/**
* isStandardTemplate returns true if a template is a standard template
* This function does not check if a template actually exists
*
* @param mixed $sTemplateName template name to look for
* @return bool True if standard template, otherwise false
*/
function isStandardTemplate($sTemplateName)
{
return in_array($sTemplateName,array('basic',
'bluengrey',
'business_grey',
'citronade',
'clear_logo',
'default',
'eirenicon',
'limespired',
'mint_idea',
'sherpa',
'vallendar'));
}
/**
* getSurveyList() Queries the database (survey table) for a list of existing surveys
*
* @param boolean $returnarray if set to true an array instead of an HTML option list is given back
* @return string This string is returned containing <option></option> formatted list of existing surveys
*
*/
function getSurveyList($returnarray=false, $returnwithouturl=false, $surveyid=false)
{
$cached = null;
$timeadjust = getGlobalSetting('timeadjust');
$clang = new Limesurvey_lang(Yii::app()->session['adminlang']);
if(is_null($cached)) {
if (!hasGlobalPermission('USER_RIGHT_SUPERADMIN'))
$surveyidresult = Survey::model()->permission(Yii::app()->user->getId())->with(array('languagesettings'=>array('condition'=>'surveyls_language=language')))->findAll();
else
$surveyidresult = Survey::model()->with(array('languagesettings'=>array('condition'=>'surveyls_language=language')))->findAll();
$surveynames = array();
foreach ($surveyidresult as $result)
{
$surveynames[] = array_merge($result->attributes, $result->languagesettings[0]->attributes);
}
$cached = $surveynames;
} else {
$surveynames = $cached;
}
$surveyselecter = "";
if ($returnarray===true) return $surveynames;
$activesurveys='';
$inactivesurveys='';
$expiredsurveys='';
if ($surveynames)
{
foreach($surveynames as $sv)
{
$surveylstitle=flattenText($sv['surveyls_title']);
if (strlen($surveylstitle)>45)
{
$surveylstitle = htmlspecialchars(mb_strcut(html_entity_decode($surveylstitle,ENT_QUOTES,'UTF-8'), 0, 45, 'UTF-8'))."...";
}
if($sv['active']!='Y')
{
$inactivesurveys .= "<option ";
if(Yii::app()->user->getId() == $sv['owner_id'])
{
$inactivesurveys .= " style=\"font-weight: bold;\"";
}
if ($sv['sid'] == $surveyid)
{
$inactivesurveys .= " selected='selected'"; $svexist = 1;
}
if ($returnwithouturl===false)
{
$inactivesurveys .=" value='".Yii::app()->getController()->createUrl("/admin/survey/view/surveyid/".$sv['sid'])."'>{$surveylstitle}</option>\n";
} else
{
$inactivesurveys .=" value='{$sv['sid']}'>{$surveylstitle}</option>\n";
}
} elseif($sv['expires']!='' && $sv['expires'] < dateShift(date("Y-m-d H:i:s"), "Y-m-d H:i:s", $timeadjust))
{
$expiredsurveys .="<option ";
if (Yii::app()->user->getId() == $sv['owner_id'])
{
$expiredsurveys .= " style=\"font-weight: bold;\"";
}
if ($sv['sid'] == $surveyid)
{
$expiredsurveys .= " selected='selected'"; $svexist = 1;
}
if ($returnwithouturl===false)
{
$expiredsurveys .=" value='".Yii::app()->getController()->createUrl("/admin/survey/view/surveyid/".$sv['sid'])."'>{$surveylstitle}</option>\n";
} else
{
$expiredsurveys .=" value='{$sv['sid']}'>{$surveylstitle}</option>\n";
}
} else
{
$activesurveys .= "<option ";
if(Yii::app()->user->getId() == $sv['owner_id'])
{
$activesurveys .= " style=\"font-weight: bold;\"";
}
if ($sv['sid'] == $surveyid)
{
$activesurveys .= " selected='selected'"; $svexist = 1;
}
if ($returnwithouturl===false)
{
$activesurveys .=" value='".Yii::app()->getController()->createUrl("/admin/survey/view/surveyid/".$sv['sid'])."'>{$surveylstitle}</option>\n";
} else
{
$activesurveys .=" value='{$sv['sid']}'>{$surveylstitle}</option>\n";
}
}
} // End Foreach
}
//Only show each activesurvey group if there are some
if ($activesurveys!='')
{
$surveyselecter .= "<optgroup label='".$clang->gT("Active")."' class='activesurveyselect'>\n";
$surveyselecter .= $activesurveys . "</optgroup>";
}
if ($expiredsurveys!='')
{
$surveyselecter .= "<optgroup label='".$clang->gT("Expired")."' class='expiredsurveyselect'>\n";
$surveyselecter .= $expiredsurveys . "</optgroup>";
}
if ($inactivesurveys!='')
{
$surveyselecter .= "<optgroup label='".$clang->gT("Inactive")."' class='inactivesurveyselect'>\n";
$surveyselecter .= $inactivesurveys . "</optgroup>";
}
if (!isset($svexist))
{
$surveyselecter = "<option selected='selected' value=''>".$clang->gT("Please choose...")."</option>\n".$surveyselecter;
} else
{
if ($returnwithouturl===false)
{
$surveyselecter = "<option value='".Yii::app()->getController()->createUrl("/admin")."'>".$clang->gT("None")."</option>\n".$surveyselecter;
} else
{
$surveyselecter = "<option value=''>".$clang->gT("None")."</option>\n".$surveyselecter;
}
}
return $surveyselecter;
}
/**
* Returns true if a user has permissions in the particular survey
*
* @param $iSID The survey ID
* @param $sPermission
* @param $sCRUD
* @param $iUID User ID - if not given the one of the current user is used
* @return bool
*/
function hasSurveyPermission($iSID, $sPermission, $sCRUD, $iUID=null)
{
if (!in_array($sCRUD,array('create','read','update','delete','import','export'))) return false;
$sCRUD=$sCRUD.'_p';
$iSID = (int)$iSID;
if ($iSID==0) return false;
$aSurveyPermissionCache = Yii::app()->getConfig("aSurveyPermissionCache");
if (is_null($iUID))
{
if (!Yii::app()->user->getIsGuest()) $iUID = Yii::app()->session['loginID'];
else return false;
if (Yii::app()->session['USER_RIGHT_SUPERADMIN']==1) return true; //Superadmin has access to all
}
if (!isset($aSurveyPermissionCache[$iSID][$iUID][$sPermission][$sCRUD]))
{
//!!! Convert this model
$query = Survey_permissions::model()->findByAttributes(array("sid"=> $iSID,"uid"=> $iUID,"permission"=>$sPermission));
//$sSQL = "SELECT {$sCRUD} FROM " . db_table_name('survey_permissions') . "
// WHERE sid={$iSID} AND uid = {$iUID}
// and permission=".dbQuoteAll($sPermission); //Getting rights for this survey
$bPermission = is_null($query) ? array() : $query->attributes;
if (!isset($bPermission[$sCRUD]) || $bPermission[$sCRUD]==0)
{
$bPermission=false;
}
else
{
$bPermission=true;
}
$aSurveyPermissionCache[$iSID][$iUID][$sPermission][$sCRUD]=$bPermission;
}
Yii::app()->setConfig("aSurveyPermissionCache", $aSurveyPermissionCache);
return $aSurveyPermissionCache[$iSID][$iUID][$sPermission][$sCRUD];
}
/**
* Returns true if a user has global permission for a certain action. Available permissions are
*
* USER_RIGHT_CREATE_SURVEY
* USER_RIGHT_CONFIGURATOR
* USER_RIGHT_CREATE_USER
* USER_RIGHT_DELETE_USER
* USER_RIGHT_SUPERADMIN
* USER_RIGHT_MANAGE_TEMPLATE
* USER_RIGHT_MANAGE_LABEL
*
* @param $sPermission
* @return bool
*/
function hasGlobalPermission($sPermission)
{
if (!Yii::app()->user->getIsGuest()) $iUID = !Yii::app()->user->getId();
else return false;
if (Yii::app()->session['USER_RIGHT_SUPERADMIN']==1) return true; //Superadmin has access to all
if (Yii::app()->session[$sPermission]==1)
{
return true;
}
else
{
return false;
}
}
function getTemplateList()
{
$usertemplaterootdir=Yii::app()->getConfig("usertemplaterootdir");
$standardtemplaterootdir=Yii::app()->getConfig("standardtemplaterootdir");
if (!$usertemplaterootdir) {die("getTemplateList() no template directory");}
if ($handle = opendir($standardtemplaterootdir))
{
while (false !== ($file = readdir($handle)))
{
if (!is_file("$standardtemplaterootdir/$file") && $file != "." && $file != ".." && $file!=".svn" && isStandardTemplate($file))
{
$list_of_files[$file] = $standardtemplaterootdir.DIRECTORY_SEPARATOR.$file;
}
}
closedir($handle);
}
if ($handle = opendir($usertemplaterootdir))
{
while (false !== ($file = readdir($handle)))
{
if (!is_file("$usertemplaterootdir/$file") && $file != "." && $file != ".." && $file!=".svn")
{
$list_of_files[$file] = $usertemplaterootdir.DIRECTORY_SEPARATOR.$file;
}
}
closedir($handle);
}
ksort($list_of_files);
return $list_of_files;
}
function getAdminThemeList()
{
// $usertemplaterootdir=Yii::app()->getConfig("usertemplaterootdir");
$standardtemplaterootdir=Yii::app()->getConfig("styledir");
// if (!$usertemplaterootdir) {die("getTemplateList() no template directory");}
if ($handle = opendir($standardtemplaterootdir))
{
while (false !== ($file = readdir($handle)))
{
if (!is_file("$standardtemplaterootdir/$file") && $file != "." && $file != ".." && $file!=".svn")
{
$list_of_files[$file] = $standardtemplaterootdir.DIRECTORY_SEPARATOR.$file;
}
}
closedir($handle);
}
/* if ($handle = opendir($usertemplaterootdir))
{
while (false !== ($file = readdir($handle)))
{
if (!is_file("$usertemplaterootdir/$file") && $file != "." && $file != ".." && $file!=".svn")
{
$list_of_files[$file] = $usertemplaterootdir.DIRECTORY_SEPARATOR.$file;
}
}
closedir($handle);
} */
ksort($list_of_files);
return $list_of_files;
}
/**
* getQuestions() queries the database for an list of all questions matching the current survey and group id
*
* @return This string is returned containing <option></option> formatted list of questions in the current survey and group
*/
function getQuestions($surveyid,$gid,$selectedqid)
{
$clang = Yii::app()->lang;
$s_lang = Survey::model()->findByPk($surveyid)->language;
$qrows = Questions::model()->findAllByAttributes(array('sid' => $surveyid, 'gid' => $gid, 'language' => $s_lang, 'parent_qid' => 0),array('order'=>'question_order'));
if (!isset($sQuestionselecter)) {$sQuestionselecter="";}
foreach ($qrows as $qrow)
{
$qrow = $qrow->attributes;
$qrow['title'] = strip_tags($qrow['title']);
$link = Yii::app()->getController()->createUrl("/admin/survey/view/surveyid/".$surveyid."/gid/".$gid."/qid/".$qrow['qid']);
$sQuestionselecter .= "<option value='{$link}'";
if ($selectedqid == $qrow['qid'])
{
$sQuestionselecter .= " selected='selected'";
$qexists=true;
}
$sQuestionselecter .=">{$qrow['title']}:";
$sQuestionselecter .= " ";
$question=flattenText($qrow['question'],true);
if (strlen($question)<35)
{
$sQuestionselecter .= $question;
}
else
{
$sQuestionselecter .= htmlspecialchars(mb_strcut(html_entity_decode($question,ENT_QUOTES,'UTF-8'), 0, 35, 'UTF-8'))."...";
}
$sQuestionselecter .= "</option>\n";
}
if (!isset($qexists))
{
$sQuestionselecter = "<option selected='selected'>".$clang->gT("Please choose...")."</option>\n".$sQuestionselecter;
}
else
{
$sQuestionselecter = "<option>".$clang->gT("None")."</option>\n".$sQuestionselecter;
}
return $sQuestionselecter;
}
/**
* getGidPrevious() returns the Gid of the group prior to the current active group
*
* @param string $surveyid
* @param string $gid
*
* @return The Gid of the previous group
*/
function getGidPrevious($surveyid, $gid)
{
$clang = Yii::app()->lang;
if (!$surveyid) {$surveyid=returnGlobal('sid');}
$s_lang = Survey::model()->findByPk($surveyid)->language;
$qresult = Groups::model()->findAllByAttributes(array('sid' => $surveyid, 'language' => $s_lang)); //checked
$i = 0;
$iPrev = -1;
foreach ($qresult as $qrow)
{
$qrow = $qrow->attributes;
if ($gid == $qrow['gid']) {$iPrev = $i - 1;}
$i += 1;
}
if ($iPrev >= 0) {$GidPrev = $qresult[$iPrev]->gid;}
else {$GidPrev = "";}
return $GidPrev;
}
/**
* getQidPrevious() returns the Qid of the question prior to the current active question
*
* @param string $surveyid
* @param string $gid
* @param string $qid
*
* @return This Qid of the previous question
*/
function getQidPrevious($surveyid, $gid, $qid)
{
$clang = Yii::app()->lang;
$s_lang = Survey::model()->findByPk($surveyid)->language;
$qrows = Questions::model()->findAllByAttributes(array('gid' => $gid, 'sid' => $surveyid, 'language' => $s_lang));
$i = 0;
$iPrev = -1;
if (count($qrows) > 0)
{
foreach ($qrows as $qrow)
{
$qrow = $qrow->attributes;
if ($qid == $qrow['qid']) {$iPrev = $i - 1;}
$i += 1;
}
}
if ($iPrev >= 0) {$QidPrev = $qrows[$iPrev]->qid;}
else {$QidPrev = "";}
return $QidPrev;
}
/**
* getGidNext() returns the Gid of the group next to the current active group
*
* @param string $surveyid
* @param string $gid
*
* @return The Gid of the next group
*/
function getGidNext($surveyid, $gid)
{
$clang = Yii::app()->lang;
if (!$surveyid) {$surveyid=returnGlobal('sid');}
$s_lang = Survey::model()->findByPk($surveyid)->language;
//$gquery = "SELECT gid FROM ".db_table_name('groups')." WHERE sid=$surveyid AND language='{$s_lang}' ORDER BY group_order";
$qresult = Groups::model()->findAllByAttributes(array('sid' => $surveyid, 'language' => $s_lang)); //checked
$GidNext="";
$i = 0;
$iNext = 1;
foreach ($qresult as $qrow)
{
$qrow = $qrow->attributes;
if ($gid == $qrow['gid']) {$iNext = $i + 1;}
$i += 1;
}
if ($iNext < count($qresult)) {$GidNext = $qresult[$iNext]->gid;}
else {$GidNext = "";}
return $GidNext;
}
/**
* getQidNext() returns the Qid of the question prior to the current active question
*
* @param string $surveyid
* @param string $gid
* @param string $qid
*
* @return This Qid of the previous question
*/
function getQidNext($surveyid, $gid, $qid)
{
$clang = Yii::app()->lang;
$s_lang = Survey::model()->findByPk($surveyid)->language;
$qrows = Questions::model()->findAllByAttributes(array('gid' => $gid, 'sid' => $surveyid, 'language' => $s_lang, 'parent_qid' => 0));
$i = 0;
$iNext = 1;
if (count($qrows) > 0)
{
foreach ($qrows as $qrow)
{
if ($qid == $qrow->qid) {$iNext = $i + 1;}
$i += 1;
}
}
if ($iNext < count($qrows)) {$QidNext = $qrows[$iNext]->qid;}
else {$QidNext = "";}
return $QidNext;
}
function convertGETtoPOST($url)
{
$url = preg_replace('/&/i','&',$url);
$stack = explode('?',$url);
$calledscript = array_shift($stack);
$query = array_shift($stack);
$aqueryitems = explode('&',$query);
$arrayParam = Array();
$arrayVal = Array();
foreach ($aqueryitems as $queryitem)
{
$stack = explode ('=', $queryitem);
$paramname = array_shift($stack);
$value = array_shift($stack);
$arrayParam[] = "'".$paramname."'";
$arrayVal[] = substr($value, 0, 9) != "document." ? "'".$value."'" : $value;
}
// $Paramlist = "[" . implode(",",$arrayParam) . "]";
// $Valuelist = "[" . implode(",",$arrayVal) . "]";
$Paramlist = "new Array(" . implode(",",$arrayParam) . ")";
$Valuelist = "new Array(" . implode(",",$arrayVal) . ")";
$callscript = "sendPost('$calledscript','".Yii::app()->session['checksessionpost']."',$Paramlist,$Valuelist);";
return $callscript;
}
/**
* This function calculates how much space is actually used by all files uploaded
* using the File Upload question type
*
* @returns integer Actual space used in MB
*/
function calculateTotalFileUploadUsage(){
global $uploaddir;
$sQuery='select sid from {{surveys}}';
$oResult = dbExecuteAssoc($sQuery); //checked
$aRows = $oResult->readAll();
$iTotalSize=0.0;
foreach ($aRows as $aRow)
{
$sFilesPath=$uploaddir.'/surveys/'.$aRow['sid'].'/files';
if (file_exists($sFilesPath))
{
$iTotalSize+=(float)getDirectorySize($sFilesPath);
}
}
return (float)$iTotalSize/1024/1024;
}
function getDirectorySize($directory) {
$size = 0;
foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($directory)) as $file){
$size+=$file->getSize();
}
return $size;
}
/**
* Gets number of groups inside a particular survey
*
* @param string $surveyid
* @param mixed $lang
*/
function getGroupSum($surveyid, $lang)
{
//$condn = "WHERE sid=".$surveyid." AND language='".$lang."'"; //Getting a count of questions for this survey
$condn = array('sid'=>$surveyid,'language'=>$lang);
$sumresult3 = count(Groups::model()->findAllByAttributes($condn)); //Checked)
return $sumresult3 ;
}
/**
* Gets number of questions inside a particular group
*
* @param string $surveyid
* @param mixed $groupid
*/
function getQuestionSum($surveyid, $groupid)
{
$s_lang = Survey::model()->findByPk($surveyid)->language;
//$condn = "WHERE gid=$groupid and sid=$surveyid AND language='{$s_lang}'"; //Getting a count of questions for this survey
$condn = array(
'gid' => $groupid,
'sid' => $surveyid,
'language' => $s_lang
);
$sumresult3 = Questions::model()->getAllRecords($condn); //Checked
$questionscount = $sumresult3->count();
return $questionscount ;
}
/**
* getMaxGroupOrder($surveyid) queries the database for the maximum sortorder of a group and returns the next higher one.
*
* @param mixed $surveyid
*/
function getMaxGroupOrder($surveyid)
{
$s_lang = Survey::model()->findByPk($surveyid)->language;
//$max_sql = "SELECT max( group_order ) AS max FROM ".db_table_name('groups')." WHERE sid =$surveyid AND language='{$s_lang}'" ;
$query = Groups::model()->find(array('order' => 'group_order desc'));
$current_max = !is_null($query) ? $query->group_order : '';
if($current_max!="")
{
return ++$current_max ;
}
else return "0" ;
}
/**
* getGroupOrder($surveyid,$gid) queries the database for the sortorder of a group.
*
* @param mixed $surveyid
* @param mixed $gid
* @return mixed
*/
function getGroupOrder($surveyid,$gid)
{
$s_lang = Survey::model()->findByPk($surveyid)->language;
//$grporder_sql = "SELECT group_order FROM ".db_table_name('groups')." WHERE sid =$surveyid AND language='{$s_lang}' AND gid=$gid" ;
$grporder_result = Groups::model()->findByAttributes(array('sid' => $surveyid, 'gid' => $gid, 'language' => $s_lang)); //Checked
$grporder_row = $grporder_result->attributes ;
$group_order = $grporder_row['group_order'];
if($group_order=="")
{
return "0" ;
}
else return $group_order ;
}
/**
* getMaxQuestionOrder($gid) queries the database for the maximum sortorder of a question.
*
*/
function getMaxQuestionOrder($gid,$surveyid)
{
$gid=sanitize_int($gid);
$s_lang = Survey::model()->findByPk($surveyid)->language;
$max_sql = "SELECT max( question_order ) AS max FROM {{questions}} WHERE gid='$gid' AND language='$s_lang'";
$max_result = Yii::app()->db->createCommand($max_sql)->query(); //Checked
$maxrow = $max_result->read() ;
$current_max = $maxrow['max'];
if($current_max=="")
{
return "0" ;
}
else return $current_max ;
}
if(!defined('COLSTYLE'))
{
/**
* The following prepares and defines the 'COLSTYLE' constant which
* dictates how columns are to be marked up for list type questions.
*
* $column_style is initialised at the end of config-defaults.php or from within config.php
*/
if( !isset($column_style) ||
$column_style != 'css' ||
$column_style != 'ul' ||
$column_style != 'table' ||
$column_style != null )
{
$column_style = 'ul';
};
define('COLSTYLE' ,strtolower($column_style), true);
};
/**
* setupColumns() defines all the html tags to be wrapped around
* various list type answers.
*
* @param integer $columns - the number of columns, usually supplied by $dcols
* @param integer $answer_count - the number of answers to a question, usually supplied by $anscount
* @param string $wrapperclass - a global class for the wrapper
* @param string $itemclass - a class for the item
* @return array with all the various opening and closing tags to generate a set of columns.
*
* It returns an array with the following items:
* $wrapper['whole-start'] = Opening wrapper for the whole list
* $wrapper['whole-end'] = closing wrapper for the whole list
* $wrapper['col-devide'] = normal column devider
* $wrapper['col-devide-last'] = the last column devider (to allow
* for different styling of the last
* column
* $wrapper['item-start'] = opening wrapper tag for individual
* option
* $wrapper['item-start-other'] = opening wrapper tag for other
* option
* $wrapper['item-start-noanswer'] = opening wrapper tag for no answer
* option
* $wrapper['item-end'] = closing wrapper tag for individual
* option
* $wrapper['maxrows'] = maximum number of rows in each
* column
* $wrapper['cols'] = Number of columns to be inserted
* (and checked against)
*
* It also expect the constant COLSTYLE which sets how columns should
* be rendered.
*
* COLSTYLE is defined 30 lines above.
*
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* Columns are a problem.
* Really there is no perfect solution to columns at the moment.
*
* - Using Tables is problematic semanticly.
* - Using inline or float to create columns, causes the answers
* flows horizontally, not vertically which is not ideal visually.
* - Using CSS3 columns is also a problem because of browser support
* and also because if you have answeres split across two or more
* lines, and those answeres happen to fall at the bottom of a
* column, the answer might be split across columns as well as
* lines.
* - Using nested unordered list with the first level of <LI>s
* floated is the same as using tables and so is bad semantically
* for the same reason tables are bad.
* - Breaking the unordered lists into consecutive floated unordered
* lists is not great semantically but probably not as bad as
* using tables.
*
* Because I haven't been able to decide which option is the least
* bad, I have handed over that responsibility to the admin who sets
* LimeSurvey up on their server.
*
* There are four options:
* 'css' using one of the various CSS only methods for
* rendering columns.
* (Check the CSS file for your chosen template to see
* how columns are defined.)
* 'ul' using multiple floated unordered lists. (DEFAULT)
* 'table' using conventional tables based layout.
* NULL blocks the use of columns
*
* 'ul' is the default because it's the best possible compromise
* between semantic markup and visual layout.
*/
function setupColumns($columns, $answer_count,$wrapperclass="",$itemclass="")
{
$colstyle = COLSTYLE;
if($columns < 2)
{
$colstyle = null;
$columns = 1;
}
if(($columns > $answer_count) && $answer_count>0)
{
$columns = $answer_count;
};
if ($answer_count>0 && $columns>0)
{
$columns = ceil($answer_count/ceil($answer_count/$columns)); // # of columns is # of answers divided by # of rows (all rounded up)
}
$class_first = ' class="'.$wrapperclass.'"';
if($columns > 1 && $colstyle != null)
{
if($colstyle == 'ul')
{
$ul = '-ul';
}
else
{
$ul = '';
}
$class_first = ' class="'.$wrapperclass.' cols-'.$columns . $ul.' first"';
$class = ' class="'.$wrapperclass.' cols-'.$columns . $ul.'"';
$class_last_ul = ' class="'.$wrapperclass.' cols-'.$columns . $ul.' last"';
$class_last_table = ' class="'.$wrapperclass.' cols-'.$columns.' last"';
}
else
{
$class = ' class="'.$wrapperclass.'"';
$class_last_ul = ' class="'.$wrapperclass.'"';
$class_last_table = ' class="'.$wrapperclass.'"';
};
$wrapper = array(
'whole-start' => "\n<ul$class_first>\n"
,'whole-end' => "</ul>\n"
,'col-devide' => ''
,'col-devide-last' => ''
,'item-start' => "\t<li class=\"{$itemclass}\">\n"
,'item-start-other' => "\t<li class=\"{$itemclass} other other-item\">\n"
,'item-start-noanswer' => "\t<li class=\"{$itemclass} noanswer-item\">\n"
,'item-end' => "\t</li>\n"
,'maxrows' => ceil($answer_count/$columns) //Always rounds up to nearest whole number
,'cols' => $columns
);
switch($colstyle)
{
case 'ul': if($columns > 1)
{
$wrapper['col-devide'] = "\n</ul>\n\n<ul$class>\n";
$wrapper['col-devide-last'] = "\n</ul>\n\n<ul$class_last_ul>\n";
}
break;
case 'table': $table_cols = '';
for($cols = $columns ; $cols > 0 ; --$cols)
{
switch($cols)
{
case $columns: $table_cols .= "\t<col$class_first />\n";
break;
case 1: $table_cols .= "\t<col$class_last_table />\n";
break;
default: $table_cols .= "\t<col$class />\n";
};
};
if($columns > 1)
{
$wrapper['col-devide'] = "\t</ul>\n</td>\n\n<td>\n\t<ul>\n";
$wrapper['col-devide-last'] = "\t</ul>\n</td>\n\n<td class=\"last\">\n\t<ul>\n";
};
$wrapper['whole-start'] = "\n<table$class>\n$table_cols\n\t<tbody>\n<tr>\n<td>\n\t<ul>\n";
$wrapper['whole-end'] = "\t</ul>\n</td>\n</tr>\n\t</tbody>\n</table>\n";
$wrapper['item-start'] = "<li class=\"{$itemclass}\">\n";
$wrapper['item-end'] = "</li class=\"{$itemclass}\">\n";
};
return $wrapper;
};
function alternation($alternate = '' , $type = 'col')
{
/**
* alternation() Returns a class identifyer for alternating between
* two options. Used to style alternate elements differently. creates
* or alternates between the odd string and the even string used in
* as column and row classes for array type questions.
*
* @param string $alternate = '' (empty) (default) , 'array2' , 'array1' , 'odd' , 'even'
* @param string $type = 'col' (default) or 'row'
*
* @return string representing either the first alternation or the opposite alternation to the one supplied..
*/
/*
// The following allows type to be left blank for row in subsequent
// function calls.
// It has been left out because 'row' must be defined the first time
// alternation() is called. Since it is only ever written once for each
// while statement within a function, 'row' is always defined.
if(!empty($alternate) && $type != 'row')
{ if($alternate == ('array2' || 'array1'))
{
$type = 'row';
};
};
// It has been left in case it becomes useful but probably should be
// removed.
*/
if($type == 'row')
{
$odd = 'array2'; // should be row_odd
$even = 'array1'; // should be row_even
}
else
{
$odd = 'odd'; // should be col_odd
$even = 'even'; // should be col_even
};
if($alternate == $odd)
{
$alternate = $even;
}
else
{
$alternate = $odd;
};
return $alternate;
}
/**
* longestString() returns the length of the longest string past to it.
* @peram string $new_string
* @peram integer $longest_length length of the (previously) longest string passed to it.
* @return integer representing the length of the longest string passed (updated if $new_string was longer than $longest_length)
*
* usage should look like this: $longest_length = longestString( $new_string , $longest_length );
*
*/
function longestString( $new_string , $longest_length )
{
if($longest_length < strlen(trim(strip_tags($new_string))))
{
$longest_length = strlen(trim(strip_tags($new_string)));
};
return $longest_length;
};
/**
* getNotificationList() returns different options for notifications
*
* @param string $notificationcode - the currently selected one
*
* @return This string is returned containing <option></option> formatted list of notification methods for current survey
*/
function getNotificationList($notificationcode)
{
$clang = Yii::app()->lang;
$ntypes = array(
"0"=>$clang->gT("No email notification"),
"1"=>$clang->gT("Basic email notification"),
"2"=>$clang->gT("Detailed email notification with result codes")
);
if (!isset($ntypeselector)) {$ntypeselector="";}
foreach($ntypes as $ntcode=>$ntdescription)
{
$ntypeselector .= "<option value='$ntcode'";
if ($notificationcode == $ntcode) {$ntypeselector .= " selected='selected'";}
$ntypeselector .= ">$ntdescription</option>\n";
}
return $ntypeselector;
}
/**
* getGroupList() queries the database for a list of all groups matching the current survey sid
*
*