/**
* @param $data
* @return DataTable\Simple
*/
private function makeFromMetricsArray($data)
{
$table = new DataTable\Simple();
if (!empty($data)) {
$table->setAllTableMetadata(DataCollection::getDataRowMetadata($data));
DataCollection::removeMetadataFromDataRow($data);
$table->addRow(new Row(array(Row::COLUMNS => $data)));
} else {
// if we're querying numeric data, we couldn't find any, and we're only
// looking for one metric, add a row w/ one column w/ value 0. this is to
// ensure that the PHP renderer outputs 0 when only one column is queried.
// w/o this code, an empty array would be created, and other parts of Piwik
// would break.
if (count($this->dataNames) == 1 && $this->dataType == 'numeric') {
$name = reset($this->dataNames);
$table->addRow(new Row(array(Row::COLUMNS => array($name => 0))));
}
}
$result = $table;
return $result;
}