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<?php
require_once "ViewDataTable/GenerateGraphData.php";
/**
* Piwik_ViewDataTable_GenerateGraphData for the Evolution graph (eg. Last 30 days visits) using Piwik_Visualization_ChartEvolution
*
* @package Piwik_ViewDataTable
*
*/
class Piwik_ViewDataTable_GenerateGraphData_ChartEvolution extends Piwik_ViewDataTable_GenerateGraphData
{
protected function getViewDataTableId()
{
return 'generateDataChartEvolution';
}
function __construct()
{
require_once "Visualization/ChartEvolution.php";
$this->view = new Piwik_Visualization_ChartEvolution;
}
var $lineLabels = array();
var $data = array();
private function generateLine( $dataArray, $columns, $schema = "##label## ##column##" )
{
$data = array();
foreach($dataArray as $keyName => $table)
{
$table->applyQueuedFilters();
// initialize data (default values for all lines is 0)
$dataRow = array();
$rows = $table->getRows();
foreach($rows as $row)
{
$rowLabel = $schema;
if( strpos($rowLabel, "##label##") !== false )
{
$rowLabel = str_replace("##label##", $row->getColumn('label'), $rowLabel);
}
foreach($columns as $col)
{
$label = $rowLabel;
if( strpos($label, "##column##") !== false )
{
$label = str_replace("##column##", $col, $label);
}
if( !isset($this->lineLabels[$label]) )
{
$this->lineLabels[$label] = count($this->lineLabels);
}
$lineNb = $this->lineLabels[$label];
$value = $row->getColumn($col);
$dataRow['value'.$lineNb] = $value;
}
}
$data[] = $dataRow;
}
return $data;
}
private function generateLabels( $dataArray )
{
$data = array();
foreach($dataArray as $keyName => $table)
{
$table->applyQueuedFilters();
$data[] = array('label' => $keyName);
}
return $data;
}
private function addArray( &$data, $newData )
{
for($i = 0; $i < count($newData); $i++)
{
foreach($newData[$i] as $key => $value)
{
$data[$i][$key] = $value;
}
}
}
private function fillValues( &$data )
{
$nbLines = count($this->lineLabels);
for($i = 0; $i < count($data); $i++)
{
for($j = 0; $j < $nbLines; $j++)
{
if( !isset($data[$i]['value'.$j]) )
{
$data[$i]['value'.$j] = 0;
}
}
}
}
/*
* generates data for evolution graph from a numeric DataTable (DataTable that has only 'label' and 'value' columns)
*/
protected function generateDataFromNumericDataTable($dataArray, $siteLabel = "")
{
$columnsToDisplay = Piwik_Common::getRequestVar('columns', array(), 'array');
// for numeric we want to have only one column name
if( count($columnsToDisplay) != 1 )
{
$columnsToDisplay = array( 'nb_uniq_visitors' );
}
$label = $siteLabel . array_shift($columnsToDisplay);
$this->addArray($this->data, $this->generateLabels($dataArray));
$this->addArray($this->data, $this->generateLine($dataArray,array('value'),$label));
$this->fillValues($this->data);
}
/*
* generates data for evolution graph from a DataTable that has named columns (i.e. 'nb_hits', 'nb_uniq_visitors')
*/
protected function generateDataFromRegularDataTable($dataArray, $siteLabel = "")
{
// get list of columns to display i.e. array('nb_hits','nb_uniq_visitors')
$columnsToDisplay = Piwik_Common::getRequestVar('columns', array(), 'array');
// default column
if( count($columnsToDisplay) == 0 )
{
$columnsToDisplay = array( 'nb_uniq_visitors' );
}
$this->addArray($this->data, $this->generateLabels($dataArray));
$this->addArray($this->data, $this->generateLine($dataArray, $columnsToDisplay, $siteLabel."##label## ##column##"));
$this->fillValues($this->data);
}
protected function handleSiteGenerateDataFromDataTable($dataArray, $siteLabel = "")
{
// detect if we got numeric Datatable or regular DataTable
foreach($dataArray as $table)
{
$row = $table->getFirstRow();
if( $row != null )
{
$columns = $row->getColumns();
// if we got 2 columns - 'label' and 'value' this is numeric DataTable
if( count($columns) == 2 && isset($columns['label']) && isset($columns['value']) )
{
$this->generateDataFromNumericDataTable($dataArray, $siteLabel);
}
else
{
$this->generateDataFromRegularDataTable($dataArray, $siteLabel);
}
break;
}
}
}
public function generateDataFromDataTable()
{
$data = array();
if( $this->dataTable->getRowsCount() )
{
$row = null;
// find first table with rows
foreach($this->dataTable->getArray() as $idsite => $table)
{
// detect if we got data from more than one site
if( $table instanceof Piwik_DataTable_Array)
{
// multiple sites
$site = new Piwik_Site($idsite);
$this->handleSiteGenerateDataFromDataTable($table->getArray(), $site->getName()." ");
}
else if( $table instanceof Piwik_DataTable_Simple && $this->dataTable->getKeyName() == 'idSite')
{
// multiple sites (when numeric DataTable)
$site = new Piwik_Site($idsite);
$this->handleSiteGenerateDataFromDataTable($table->getFirstRow()->getColumn('value')->getArray(), $site->getName()." ");
}
else
{
// single site
$this->handleSiteGenerateDataFromDataTable($this->dataTable->getArray());
break;
}
}
}
array_unshift($this->data, array_keys($this->lineLabels));
return $this->data;
}
}
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