/**
* Populate the sub-filters (if any) for the
* given parent filter.
* @param $parentFilter PersistableFilter
*/
function _populateSubFilters(&$parentFilter)
{
if (!is_a($parentFilter, 'CompositeFilter')) {
// Nothing to do. Only composite filters
// can have sub-filters.
return;
}
// Retrieve the sub-filters from the database.
$parentFilterId = $parentFilter->getId();
$result =& $this->retrieve('SELECT * FROM filters WHERE parent_filter_id = ? ORDER BY seq', $parentFilterId);
$daoResultFactory = new DAOResultFactory($result, $this, '_fromRow', array('filter_id'));
// Add sub-filters.
while (!$daoResultFactory->eof()) {
// Retrieve the sub filter.
// NB: This recursively loads sub-filters
// of this filter via _fromRow().
$subFilter =& $daoResultFactory->next();
// Add the sub-filter to the filter list
// of its parent filter.
$parentFilter->addFilter($subFilter);
unset($subFilter);
}
}
/**
* Remove all user group assignments in a given context
* @param int $contextId
* @param int $userId
*/
function deleteAssignmentsByContextId($contextId, $userId = null)
{
$params = array($contextId);
if ($userId) {
$params[] = $userId;
}
$result =& $this->retrieve('SELECT uug.user_group_id, uug.user_id
FROM user_groups ug
JOIN user_user_groups uug ON ug.user_group_id = uug.user_group_id
WHERE ug.context_id = ?
' . ($userId ? ' AND uug.user_id = ?' : ''), $params);
$assignments = new DAOResultFactory($result, $this, '_returnFromRow');
while (!$assignments->eof()) {
$assignment =& $assignments->next();
$this->deleteByUserId($assignment->getUserId(), $assignment->getUserGroupId());
unset($assignment);
}
return $assignments;
}
