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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
* @version $Id$
*
* @package Piwik_DataTable
*/
require_once "DataTable/Renderer/Php.php";
/**
* XML export of a given DataTable.
* See the tests cases for more information about the XML format (/tests/modules/DataTable/Renderer.test.php)
* Or have a look at the API calls examples.
*
* Works with recursive DataTable (when a row can be associated with a subDataTable).
*
* @package Piwik_DataTable
* @subpackage Piwik_DataTable_Renderer
*/
class Piwik_DataTable_Renderer_Xml extends Piwik_DataTable_Renderer
{
function __construct($table = null)
{
parent::__construct($table);
}
function render()
{
return $this->renderTable($this->table);
}
protected function renderTable($table)
{
$renderer = new Piwik_DataTable_Renderer_Php($table, $serialize = false);
$array = $renderer->flatRender();
// case DataTable_Array
if($table instanceof Piwik_DataTable_Array)
{
return $this->renderDataTableArray($table, $array);
}
// integer value of ZERO is a value we want to display
if($array != 0 && empty($array))
{
$out = "<result />";
return $this->output($out);
}
if($table instanceof Piwik_DataTable_Simple)
{
if(is_array($array))
{
$out = $this->renderDataTableSimple($array);
$out = "<result>\n".$out."</result>";
}
else
{
$out = "<result>".$array."</result>";
}
return $this->output($out);
}
if($table instanceof Piwik_DataTable)
{
$out = $this->renderDataTable($array);
$out = "<result>\n$out</result>";
return $this->output($out);
}
}
protected function renderDataTableArray($table, $array)
{
// CASE 1
//array
// 'day1' => string '14' (length=2)
// 'day2' => string '6' (length=1)
$firstTable = current($array);
if(!is_array( $firstTable ))
{
$xml = "<results>\n";
$nameDescriptionAttribute = $table->getNameKey();
foreach($array as $valueAttribute => $value)
{
if(!empty($value))
{
$xml .= "\t<result $nameDescriptionAttribute=\"$valueAttribute\">$value</result>\n";
}
else
{
$xml .= "\t<result $nameDescriptionAttribute=\"$valueAttribute\" />\n";
}
}
$xml .= "</results>";
return $this->output($xml);
}
$subTables = $table->getArray();
$firstTable = current($subTables);
// CASE 2
//array
// 'day1' =>
// array
// 'nb_uniq_visitors' => string '18'
// 'nb_visits' => string '101'
// 'day2' =>
// array
// 'nb_uniq_visitors' => string '28'
// 'nb_visits' => string '11'
if( $firstTable instanceof Piwik_DataTable_Simple)
{
$xml = "<results>\n";
$nameDescriptionAttribute = $table->getNameKey();
foreach($array as $valueAttribute => $dataTableSimple)
{
if(count($dataTableSimple) == 0)
{
$xml .= "\t<result $nameDescriptionAttribute=\"$valueAttribute\" />\n";
}
else
{
if(is_array($dataTableSimple))
{
$dataTableSimple = "\n" . $this->renderDataTableSimple($dataTableSimple, "\t") . "\t" ;
}
$xml .= "\t<result $nameDescriptionAttribute=\"$valueAttribute\">".$dataTableSimple."</result>\n";
}
}
$xml .= "</results>";
return $this->output($xml);
}
// CASE 3
//array
// 'day1' =>
// array
// 0 =>
// array
// 'label' => string 'phpmyvisites'
// 'nb_uniq_visitors' => int 11
// 'nb_visits' => int 13
// 1 =>
// array
// 'label' => string 'phpmyvisits'
// 'nb_uniq_visitors' => int 2
// 'nb_visits' => int 2
// 'day2' =>
// array
// 0 =>
// array
// 'label' => string 'piwik'
// 'nb_uniq_visitors' => int 121
// 'nb_visits' => int 130
// 1 =>
// array
// 'label' => string 'piwik bis'
// 'nb_uniq_visitors' => int 20
// 'nb_visits' => int 120
if($firstTable instanceof Piwik_DataTable)
{
$out = "<results>\n";
$nameDescriptionAttribute = $table->getNameKey();
foreach($array as $keyName => $arrayForSingleDate)
{
$dataTableOut = $this->renderDataTable( $arrayForSingleDate, "\t" );
if(empty($dataTableOut))
{
$out .= "\t<result $nameDescriptionAttribute=\"$keyName\" />\n";
}
else
{
$out .= "\t<result $nameDescriptionAttribute=\"$keyName\">\n";
$out .= $dataTableOut;
$out .= "\t</result>\n";
}
}
$out .= "</results>";
return $this->output($out);
}
}
protected function renderDataTable( $array, $prefixLine = "" )
{
// var_dump($array);exit;
$out = '';
foreach($array as $row)
{
$out .= $prefixLine."\t<row>\n";
foreach($row as $name => $value)
{
// handle the recursive dataTable case by XML outputting the recursive table
if(is_array($value))
{
$value = "\n".$this->renderDataTable($value, $prefixLine."\t\t");
$value .= $prefixLine."\t\t";
}
$out .= $prefixLine."\t\t<$name>$value</$name>\n";
}
$out .= $prefixLine."\t</row>\n";
}
return $out;
}
protected function renderDataTableSimple( $array, $prefixLine = "")
{
$out = '';
foreach($array as $keyName => $value)
{
$out .= $prefixLine."\t<$keyName>$value</$keyName>\n";
}
return $out;
}
protected function output( $xml )
{
// silent fail because otherwise it throws an exception in the unit tests
@header("Content-Type: text/xml;charset=utf-8");
$xml = '<?xml version="1.0" encoding="utf-8" ?>' . "\n" . $xml;
return $xml;
}
}
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