/**
* Provide additional statistic update on the master module
*/
public function _onDelete(&$row, $old_row)
{
$engine =& $this->data->getProperty('engine');
if (!$engine->startTransaction()) {
// This error must be caught here to avoid the rollback
return false;
}
// Process the row
$done = parent::_onDelete($row, $old_row) && $this->_updateMaster($row, -1);
$done = $engine->endTransaction($done) && $done;
return $done;
}
/**
* Process a delete action
*
* Overrides the default delete action erasing both master and child rows.
*/
public function _onDelete(&$row, $old_row)
{
$child =& $this->_getChildModule();
if (is_null($child)) {
// No child module: chain-up the parent method
return parent::_onDelete($row, $old_row);
} elseif (!$child) {
// An error occurred somewhere: do nothing
return false;
}
$primary_key = $this->data->getProperty('primary_key');
if (!array_key_exists($primary_key, $row) || is_null($id = $row[$primary_key])) {
TIP::warning("no primary key defined (field {$primary_key})");
return false;
}
$engine =& $this->data->getProperty('engine');
if (!$engine->startTransaction()) {
// This error must be caught here to avoid the rollback
return false;
}
$done = parent::_onDelete($row, $old_row) && $child->getProperty('data')->deleteRow($id);
$done = $engine->endTransaction($done) && $done;
return $done;
}