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export_data_spss.php
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/
export_data_spss.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.
*
* $Id$
*/
// Security Checked: POST, GET, SESSION, REQUEST, returnglobal, DB
/*
* The SPSS DATA LIST / BEGIN DATA parser is rather simple minded, the number after the type
* specifier identifies the field width (maximum number of characters to scan)
* It will stop short of that number of characters, honouring quote delimited
* space separated strings, however if the width is too small the remaining data in the current
* line becomes part of the next column. Since we want to restrict this script to ONE scan of
* the data (scan & output at same time), the information needed to construct the
* DATA LIST is held in the $fields array, while the actual data is written to a
* to a temporary location, updating length (size) values in the $fields array as
* the tmp file is generated (uses @fwrite's return value rather than strlen).
* Final output renders $fields to a DATA LIST, and then stitches in the tmp file data.
*
* Optimization opportunities remain in the VALUE LABELS section, which runs a query / column
*/
$length_data = '255'; // Set the max text length of Text Data
$length_varlabel = '255'; // Set the max text length of Variable Labels
$length_vallabel = '120'; // Set the max text length of Value Labels
$headerComment = '';
$tempFile = '';
include_once('login_check.php');
//for scale 1=nominal, 2=ordinal, 3=scale
$typeMap = array(
'5'=>Array('name'=>'5 Point Choice','size'=>1,'SPSStype'=>'F','Scale'=>3),
'B'=>Array('name'=>'Array (10 Point Choice)','size'=>1,'SPSStype'=>'F','Scale'=>3),
'A'=>Array('name'=>'Array (5 Point Choice)','size'=>1,'SPSStype'=>'F','Scale'=>3),
'F'=>Array('name'=>'Array (Flexible Labels)','size'=>1,'SPSStype'=>'F'),
'1'=>Array('name'=>'Array (Flexible Labels) Dual Scale','size'=>1,'SPSStype'=>'F'),
'H'=>Array('name'=>'Array (Flexible Labels) by Column','size'=>1,'SPSStype'=>'F'),
'E'=>Array('name'=>'Array (Increase, Same, Decrease)','size'=>1,'SPSStype'=>'F','Scale'=>2),
'C'=>Array('name'=>'Array (Yes/No/Uncertain)','size'=>1,'SPSStype'=>'F'),
'X'=>Array('name'=>'Boilerplate Question','size'=>1,'SPSStype'=>'A','hide'=>1),
'D'=>Array('name'=>'Date','size'=>10,'SPSStype'=>'SDATE'),
'G'=>Array('name'=>'Gender','size'=>1,'SPSStype'=>'F'),
'U'=>Array('name'=>'Huge Free Text','size'=>1,'SPSStype'=>'A'),
'I'=>Array('name'=>'Language Switch','size'=>1,'SPSStype'=>'A'),
'!'=>Array('name'=>'List (Dropdown)','size'=>1,'SPSStype'=>'F'),
'W'=>Array('name'=>'List (Flexible Labels) (Dropdown)','size'=>1,'SPSStype'=>'F'),
'Z'=>Array('name'=>'List (Flexible Labels) (Radio)','size'=>1,'SPSStype'=>'F'),
'L'=>Array('name'=>'List (Radio)','size'=>1,'SPSStype'=>'F'),
'O'=>Array('name'=>'List With Comment','size'=>1,'SPSStype'=>'F'),
'T'=>Array('name'=>'Long free text','size'=>1,'SPSStype'=>'A'),
'K'=>Array('name'=>'Multiple Numerical Input','size'=>1,'SPSStype'=>'F'),
'M'=>Array('name'=>'Multiple Options','size'=>1,'SPSStype'=>'F'),
'P'=>Array('name'=>'Multiple Options With Comments','size'=>1,'SPSStype'=>'F'),
'Q'=>Array('name'=>'Multiple Short Text','size'=>1,'SPSStype'=>'F'),
'N'=>Array('name'=>'Numerical Input','size'=>3,'SPSStype'=>'F','Scale'=>3),
'R'=>Array('name'=>'Ranking','size'=>1,'SPSStype'=>'F'),
'S'=>Array('name'=>'Short free text','size'=>1,'SPSStype'=>'F'),
'Y'=>Array('name'=>'Yes/No','size'=>1,'SPSStype'=>'F'),
':'=>Array('name'=>'Multi flexi numbers','size'=>1,'SPSStype'=>'F','Scale'=>3),
';'=>Array('name'=>'Multi flexi text','size'=>1,'SPSStype'=>'A'),
);
if (!isset($surveyid)) {$surveyid=returnglobal('sid');}
if (!isset($subaction))
{
$exportspssoutput = browsemenubar($clang->gT('Export results'));
$exportspssoutput .= "<br />\n";
$exportspssoutput .= "<div class='header'>".$clang->gT("Export result data to SPSS")."</div>\n";
$exportspssoutput .= "<p style='width:100%;'><ul style='width:300px;margin:0 auto;'><li><a href='$scriptname?action=exportspss&sid=$surveyid&subaction=dlstructure'>".$clang->gT("Export SPSS syntax file")."</a></li><li>"
."<a href='$scriptname?action=exportspss&sid=$surveyid&subaction=dldata'>".$clang->gT("Export SPSS data file")."</a></li></ul></p><br />\n"
."<h3>".$clang->gT("Instructions for the impatient")."</h3>"
."<ol style='width:500px;margin:0 auto; font-size:8pt;'>"
."<li>".$clang->gT("Download the data and the syntax file.")."</li>"
."<li>".$clang->gT("Open the syntax file in SPSS in Unicode mode").".</li>"
."<li>".$clang->gT("Edit the 4th line and complete the filename with a full path to the downloaded data file.")."</li>"
."<li>".$clang->gT("Choose 'Run/All' from the menu to run the import.")."</li>"
."</ol><br />"
.$clang->gT("Your data should be imported now.")
."<table><tr><td>";
} else {
// Get Base Language:
$language = GetBaseLanguageFromSurveyID($surveyid);
$clang = new limesurvey_lang($language);
require_once ("export_data_functions.php");
}
if ($subaction=='dldata') {
header("Content-Type: application/download; charset=utf-8");
header("Content-Disposition: attachment; filename=survey_".$surveyid."_SPSS_data_file.dat");
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: no-cache');
sendcacheheaders();
// Build array that has to be returned
$fields = spss_fieldmap();
//Now get the query string with all fields to export
$query = spss_getquery();
$result=db_execute_num($query) or safe_die("Couldn't get results<br />$query<br />".$connect->ErrorMsg()); //Checked
$num_results = $result->RecordCount();
$num_fields = $result->FieldCount();
for ($i=0; $i < $num_results; $i++) {
$row = $result->FetchRow();
$fieldno = 0;
while ($fieldno < $num_fields)
{
if ($fields[$fieldno]['SPSStype']=='DATETIME23.2'){
#convert mysql datestamp (yyyy-mm-dd hh:mm:ss) to SPSS datetime (dd-mmm-yyyy hh:mm:ss) format
if (isset($row[$fieldno]))
{
list( $year, $month, $day, $hour, $minute, $second ) = split( '([^0-9])', $row[$fieldno] );
if ($year != '' && (int)$year >= 1970)
{
echo "'".date('d-m-Y H:i:s', mktime( $hour, $minute, $second, $month, $day, $year ) )."'";
} else
{
echo ("''");
}
} else
{
echo ( "''");
}
} else if ($fields[$fieldno]['LStype'] == 'Y')
{
if ($row[$fieldno] == 'Y') // Yes/No Question Type
{
echo( "'1'");
} else if ($row[$fieldno] == 'N'){
echo( "'2'");
} else {
echo( "'0'");
}
} else if ($fields[$fieldno]['LStype'] == 'G') //Gender
{
if ($row[$fieldno] == 'F')
{
echo( "'1'");
} else if ($row[$fieldno] == 'M'){
echo( "'2'");
} else {
echo( "'0'");
}
} else if ($fields[$fieldno]['LStype'] == 'C') //Yes/No/Uncertain
{
if ($row[$fieldno] == 'Y')
{
echo( "'1'");
} else if ($row[$fieldno] == 'N'){
echo( "'2'");
} else if ($row[$fieldno] == 'U'){
echo( "'3'");
} else {
echo( "'0'");
}
} else if ($fields[$fieldno]['LStype'] == 'E') //Increase / Same / Decrease
{
if ($row[$fieldno] == 'I')
{
echo( "'1'");
} else if ($row[$fieldno] == 'S'){
echo( "'2'");
} else if ($row[$fieldno] == 'D'){
echo( "'3'");
} else {
echo( "'0'");
}
} elseif (($fields[$fieldno]['LStype'] == 'P' || $fields[$fieldno]['LStype'] == 'M') && (substr($fields[$fieldno]['code'],-7) != 'comment' && substr($fields[$fieldno]['code'],-5) != 'other'))
{
if ($row[$fieldno] == 'Y')
{
echo("'1'");
} else
{
echo("'0'");
}
} elseif (!$fields[$fieldno]['hide']) {
$strTmp=mb_substr(strip_tags_full($row[$fieldno]), 0, $length_data);
if (trim($strTmp) != ''){
$strTemp=str_replace(array("'","\n","\r"),array("''", ' ', ' '),trim($strTmp));
/*
* Temp quick fix for replacing decimal dots with comma's
if (my_is_numeric($strTemp)) {
//$strTemp = (string) $strTemp;
$strTemp = str_replace('.',',',$strTemp);
}
*/
echo "'$strTemp'";
}
else
{
echo "'0'";
}
}
$fieldno++;
if ($fieldno<$num_fields && !$fields[$fieldno]['hide']) echo ',';
}
echo "\n";
}
exit;
}
if ($subaction=='dlstructure') {
header("Content-Type: application/download; charset=utf-8");
header("Content-Disposition: attachment; filename=survey_".$surveyid."_SPSS_syntax_file.sps");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: no-cache');
sendcacheheaders();
// Build array that has to be returned
$fields = spss_fieldmap();
//Now get the query string with all fields to export
$query = spss_getquery();
$result=db_execute_num($query) or safe_die("Couldn't get results<br />$query<br />".$connect->ErrorMsg()); //Checked
$num_results = $result->RecordCount();
$num_fields = $result->FieldCount();
//Now we check if we need to adjust the size of the field or the type of the field
for ($i=0; $i < $num_results; $i++) {
$row = $result->FetchRow();
$fieldno = 0;
while ($fieldno < $num_fields)
{
$strTmp=mb_substr(strip_tags_full($row[$fieldno]), 0, $length_data);
$len = mb_strlen($strTmp);
if($len > $fields[$fieldno]['size']) $fields[$fieldno]['size'] = $len;
if (trim($strTmp) != ''){
if ($fields[$fieldno]['SPSStype']=='F' && (my_is_numeric($strTmp)===false || $fields[$fieldno]['size']>16))
{
$fields[$fieldno]['SPSStype']='A';
}
}
$fieldno++;
}
}
/**
* End of DATA print out
*
* Now $fields contains accurate length data, and the DATA LIST can be rendered -- then the contents of the temp file can
* be sent to the client.
*/
echo $headerComment;
echo "SET UNICODE=ON.\n"
."GET DATA\n"
."/TYPE=TXT\n"
."/FILE='survey_".$surveyid."_SPSS_data_file.dat'\n"
."/DELCASE=LINE\n"
."/DELIMITERS=\",\"\n"
."/QUALIFIER=\"'\"\n"
."/ARRANGEMENT=DELIMITED\n"
."/FIRSTCASE=1\n"
."/IMPORTCASE=ALL\n"
."/VARIABLES=";
foreach ($fields as $field){
if($field['SPSStype'] == 'DATETIME23.2') $field['size']='';
if($field['SPSStype']=='F' && ($field['LStype'] == 'N' || $field['LStype']=='K')) {
$field['size'].='.'.($field['size']-1);
}
if (!$field['hide']) echo "\n {$field['id']} {$field['SPSStype']}{$field['size']}";
}
echo ".\nCACHE.\n"
."EXECUTE.\n";
//Create the variable labels:
echo "*Define Variable Properties.\n";
foreach ($fields as $field) {
if (!$field['hide']) echo "VARIABLE LABELS " . $field['id'] . " \"" . addslashes(strip_tags_full(mb_substr($field['VariableLabel'],0,$length_varlabel))) . "\".\n";
}
// Create our Value Labels!
echo "*Define Value labels.\n";
foreach ($fields as $field)
{
$answers=array();
if (strpos("!LOR",$field['LStype']) !== false) {
if (substr($field['code'],-5) == 'other' || substr($field['code'],-7) == 'comment') {
//We have a comment field, so free text
} else {
$query = "SELECT {$dbprefix}answers.code, {$dbprefix}answers.answer,
{$dbprefix}questions.type FROM {$dbprefix}answers, {$dbprefix}questions WHERE
{$dbprefix}answers.qid = '".$field["qid"]."' and {$dbprefix}questions.language='".$language."' and {$dbprefix}answers.language='".$language."'
and {$dbprefix}questions.qid='".$field['qid']."' ORDER BY sortorder ASC";
$result=db_execute_assoc($query) or safe_die("Couldn't lookup value labels<br />$query<br />".$connect->ErrorMsg()); //Checked
$num_results = $result->RecordCount();
if ($num_results > 0)
{
$displayvaluelabel = 0;
# Build array that has to be returned
for ($i=0; $i < $num_results; $i++)
{
$row = $result->FetchRow();
$answers[] = array('code'=>$row['code'], 'value'=>strip_tags_full(mb_substr($row["answer"],0,$length_vallabel)));
}
}
}
}
if (strpos("FWZWH1",$field['LStype']) !== false) {
$query = "SELECT {$dbprefix}questions.lid, {$dbprefix}labels.code, {$dbprefix}labels.title from
{$dbprefix}questions, {$dbprefix}labels WHERE {$dbprefix}labels.language='".$language."' and
{$dbprefix}questions.language='".$language."' and
{$dbprefix}questions.qid ='".$field["qid"]."' and {$dbprefix}questions.lid={$dbprefix}labels.lid ORDER BY sortorder ASC";
$result=db_execute_assoc($query) or safe_die("Couldn't get labels<br />$query<br />".$connect->ErrorMsg()); //Checked
$num_results = $result->RecordCount();
if ($num_results > 0)
{
for ($i=0; $i < $num_results; $i++)
{
$row = $result->FetchRow();
$answers[] = array('code'=>$row['code'], 'value'=>strip_tags_full(mb_substr($row["title"],0,$length_vallabel)));
}
}
}
if ($field['LStype'] == ':') {
$displayvaluelabel = 0;
//Get the labels that could apply!
$qidattributes=getQuestionAttributes($field["qid"]);
if ($maxvalue=arraySearchByKey("multiflexible_max", $qidattributes, "attribute", 1)) {
$maxvalue=$maxvalue['value'];
} else {
$maxvalue=10;
}
if ($minvalue=arraySearchByKey("multiflexible_min", $qidattributes, "attribute", 1)) {
$minvalue=$minvalue['value'];
} else {
$minvalue=1;
}
if ($stepvalue=arraySearchByKey("multiflexible_step", $qidattributes, "attribute", 1)) {
$stepvalue=$stepvalue['value'];
} else {
$stepvalue=1;
}
if (arraySearchByKey("multiflexible_checkbox", $qidattributes, "attribute", 1)) {
$minvalue=0;
$maxvalue=1;
$stepvalue=1;
}
for ($i=$minvalue; $i<=$maxvalue; $i+=$stepvalue)
{
$answers[] = array('code'=>$i, 'value'=>$i);
}
}
if ($field['LStype'] == 'M' && substr($field['code'],-5) != 'other' && $field['size'] > 0)
{
$answers[] = array('code'=>1, 'value'=>$clang->gT('Yes'));
$answers[] = array('code'=>0, 'value'=>$clang->gT('Not Selected'));
}
if ($field['LStype'] == "P" && substr($field['code'],-5) != 'other' && substr($field['code'],-7) != 'comment')
{
$answers[] = array('code'=>1, 'value'=>$clang->gT('Yes'));
$answers[] = array('code'=>0, 'value'=>$clang->gT('Not Selected'));
}
if ($field['LStype'] == "G" && $field['size'] > 0)
{
$answers[] = array('code'=>1, 'value'=>$clang->gT('Female'));
$answers[] = array('code'=>2, 'value'=>$clang->gT('Male'));
}
if ($field['LStype'] == "Y" && $field['size'] > 0)
{
$answers[] = array('code'=>1, 'value'=>$clang->gT('Yes'));
$answers[] = array('code'=>2, 'value'=>$clang->gT('No'));
}
if ($field['LStype'] == "C" && $field['size'] > 0)
{
$answers[] = array('code'=>1, 'value'=>$clang->gT('Yes'));
$answers[] = array('code'=>2, 'value'=>$clang->gT('No'));
$answers[] = array('code'=>3, 'value'=>$clang->gT('Uncertain'));
}
if ($field['LStype'] == "E" && $field['size'] > 0)
{
$answers[] = array('code'=>1, 'value'=>$clang->gT('Increase'));
$answers[] = array('code'=>2, 'value'=>$clang->gT('Same'));
$answers[] = array('code'=>3, 'value'=>$clang->gT('Decrease'));
}
if (count($answers)>0) {
//print out the value labels!
echo "VALUE LABELS {$field['id']}\n";
$i=0;
foreach ($answers as $answer) {
$i++;
if ($field['SPSStype']=="F" && my_is_numeric($answer['code'])) {
$str = "{$answer['code']}";
} else {
$str = "\"{$answer['code']}\"";
}
if ($i < count($answers)) {
echo " $str \"{$answer['value']}\"\n";
} else {
echo " $str \"{$answer['value']}\".\n";
}
}
}
}
foreach ($fields as $field){
if($field['scale']!=='') {
switch ($field['scale']) {
case 2:
echo "VARIABLE LEVEL {$field['id']}(ORDINAL).\n";
break;
case 3:
echo "VARIABLE LEVEL {$field['id']}(SCALE).\n";
}
}
}
//Rename the Variables (in case somethings goes wrong, we still have the OLD values
foreach ($fields as $field){
if (isset($field['sql_name']) && !$field['hide']) {
$ftitle = $field['title'];
if (!preg_match ("/^([a-z]|[A-Z])+.*$/", $ftitle)) {
$ftitle = "q_" . $ftitle;
}
$ftitle = str_replace(array(" ","-",":",";","!","/","\\"), array("_","_hyph_","_dd_","_dc_","_excl_","_fs_","_bs_"), $ftitle);
if (!$field['hide']) {
if ($ftitle != $field['title']) echo "* Variable name was incorrect and was changed from {$field['title']} to $ftitle .\n";
echo "RENAME VARIABLE ( " . $field['id'] . " = " . $ftitle . " ).\n";
}
}
}
exit;
}
?>