/**
* Deletes values of current attribute given in arguments.
*
* This method takes a variable number of arguments each representing
* existing value of current attribute to be deleted/removed. Since empty
* strings are ignored, there may be no value to delete. In that case
* no values are deleted at all.
*
* @throws protocol_exception
* @param string $firstValueToDelete first value of attribute to delete
* @return attribute current instance
*/
public function delete($firstValueToDelete)
{
if (!$this->faking) {
$values = array_filter(array_map(function ($a) {
return trim($a);
}, func_get_args()), function ($a) {
return $a !== '';
});
if (count($values)) {
if ($this->node->isAdjusting()) {
$this->node->adjust($this, array_diff($this->read(), $values));
} else {
if (!@ldap_mod_del($this->node->getLink(), $this->node->getDN(), array($this->name => $values))) {
throw new protocol_exception(sprintf('failed to delete values of attribute %s', $this->name), $this->node->getLink(), $this->node->getDN());
}
}
}
}
return $this;
}
