/**
* Helper function to test if two rows are equal.
*
* Two rows are equal
* - if they have exactly the same columns / metadata
* - if they have a subDataTable associated, then we check that both of them are the same.
*
* @param Piwik_DataTable_Row $row1 first to compare
* @param Piwik_DataTable_Row $row2 second to compare
* @return bool
*/
public static function isEqual(Piwik_DataTable_Row $row1, Piwik_DataTable_Row $row2)
{
//same columns
$cols1 = $row1->getColumns();
$cols2 = $row2->getColumns();
$diff1 = array_udiff($cols1, $cols2, array(__CLASS__, 'compareElements'));
$diff2 = array_udiff($cols2, $cols1, array(__CLASS__, 'compareElements'));
if ($diff1 != $diff2) {
return false;
}
$dets1 = $row1->getMetadata();
$dets2 = $row2->getMetadata();
ksort($dets1);
ksort($dets2);
if ($dets1 != $dets2) {
return false;
}
// either both are null
// or both have a value
if (!(is_null($row1->getIdSubDataTable()) && is_null($row2->getIdSubDataTable()))) {
$subtable1 = $row1->getSubtable();
$subtable2 = $row2->getSubtable();
if (!Piwik_DataTable::isEqual($subtable1, $subtable2)) {
return false;
}
}
return true;
}
