Rebuilds the index used to lookup a row by label
| public rebuildIndex ( ) |
/**
* Method for the recursive descend
*
* @param array $labelParts
* @param DataTable $dataTable
* @return Row|bool
*/
private function doFilterRecursiveDescend($labelParts, $dataTable)
{
// we need to make sure to rebuild the index as some filters change the label column directly via
// $row->setColumn('label', '') which would not be noticed in the label index otherwise.
$dataTable->rebuildIndex();
// search for the first part of the tree search
$labelPart = array_shift($labelParts);
$row = false;
foreach ($this->getLabelVariations($labelPart) as $labelPart) {
$row = $dataTable->getRowFromLabel($labelPart);
if ($row !== false) {
break;
}
}
if ($row === false) {
// not found
return false;
}
// end of tree search reached
if (count($labelParts) == 0) {
return $row;
}
$subTable = $this->loadSubtable($dataTable, $row);
if ($subTable === null) {
// no more subtables but label parts left => no match found
return false;
}
return $this->doFilterRecursiveDescend($labelParts, $subTable);
}
/**
* Returns true if both DataTable instances are exactly the same.
*
* DataTables are equal if they have the same number of rows, if
* each row has a label that exists in the other table, and if each row
* is equal to the row in the other table with the same label. The order
* of rows is not important.
*
* @param \Piwik\DataTable $table1
* @param \Piwik\DataTable $table2
* @return bool
*/
public static function isEqual(DataTable $table1, DataTable $table2)
{
$table1->rebuildIndex();
$table2->rebuildIndex();
if ($table1->getRowsCount() != $table2->getRowsCount()) {
return false;
}
$rows1 = $table1->getRows();
foreach ($rows1 as $row1) {
$row2 = $table2->getRowFromLabel($row1->getColumn('label'));
if ($row2 === false || !Row::isEqual($row1, $row2)) {
return false;
}
}
return true;
}
