/**
* Update statistic on the master module
*
* Updates the counter of the linked row in the master module according
* to the specified $offset.
*
* This is an high level method that raises errors and notify them to the
* user on any errors.
*
* @param array &$comment_row The comment row
* @param int $offset The offset of the counter (+1 add, -1 delete)
* @return bool true on success or false on errors
*/
private function _updateMaster(&$comment_row, $offset)
{
if (!isset($this->master_count)) {
// No count field to update
return true;
}
$id = @$comment_row[$this->parent_field];
if (empty($id)) {
// No master row specified: don't update anything
return true;
}
if (is_null($row =& $this->master->fromRow($id, false))) {
// Error: master row specified but not found
return false;
}
if (!array_key_exists($this->master_count, $row)) {
// No count field found in master: don't update anything
return true;
}
$old_row = $row;
$row[$this->master_count] += $offset;
if (!$this->master->getProperty('data')->updateRow($row, $old_row)) {
return false;
}
return true;
}
/**
* Get a specific row
*
* Overrides the default method to merge also the child row fields
* to the returned array.
*
* @param mixed $id The row id
* @param bool $end_view Whether to end the view or not
* @return array|null The row or null on errors
*/
public function &fromRow($id = null, $end_view = true)
{
// Get the current "master" row
if (is_null($row = parent::fromRow($id, $end_view))) {
return $row;
}
// Try to get the child row, if possible: the class name is
// retrieved from the post (if found) or from the current $row
if (is_null($class = TIP::getPost($this->class_field, 'string'))) {
$class = $row[$this->class_field];
}
$child =& $this->_getChildModule($class);
if ($child === false) {
$row = null;
} elseif ($child && !is_null($child_row = $child->fromRow($id, $end_view))) {
$row = array_merge($child_row, $row);
}
return $row;
}