/**
* Create and add elements to this form
*
* @param array $formData The data sent by the user
*/
public function createElements(array $formData)
{
// TODO(jom): Fetching already existing members to prevent the user from mistakenly creating duplicate
// memberships (no matter whether the data source permits it or not, a member does never need to be
// added more than once) should be kept at backend level (GroupController::fetchUsers) but this does
// not work currently as our ldap protocol stuff is unable to handle our filter implementation..
$members = $this->backend->select()->from('group_membership', array('user_name'))->where('group_name', $this->groupName)->fetchColumn();
$filter = empty($members) ? Filter::matchAll() : Filter::not(Filter::where('user_name', $members));
$users = $this->ds->select()->from('user', array('user_name'))->applyFilter($filter)->fetchColumn();
if (!empty($users)) {
$this->addElement('multiselect', 'user_name', array('multiOptions' => array_combine($users, $users), 'label' => $this->translate('Backend Users'), 'description' => $this->translate('Select one or more users (fetched from your user backends) to add as group member'), 'class' => 'grant-permissions'));
}
$this->addElement('textarea', 'users', array('required' => empty($users), 'label' => $this->translate('Users'), 'description' => $this->translate('Provide one or more usernames separated by comma to add as group member')));
$this->setTitle(sprintf($this->translate('Add members for group %s'), $this->groupName));
$this->setSubmitLabel($this->translate('Add'));
}
protected function applyChanges($changes)
{
$filter = $this->filter;
$pairs = array();
$addTo = null;
$add = array();
foreach ($changes as $k => $v) {
if (preg_match('/^(column|value|sign|operator)((?:_new)?)_([\\d-]+)$/', $k, $m)) {
if ($m[2] === '_new') {
if ($addTo !== null && $addTo !== $m[3]) {
throw new \Exception('F...U');
}
$addTo = $m[3];
$add[$m[1]] = $v;
} else {
$pairs[$m[3]][$m[1]] = $v;
}
}
}
$operators = array();
foreach ($pairs as $id => $fs) {
if (array_key_exists('operator', $fs)) {
$operators[$id] = $fs['operator'];
} else {
$f = $filter->getById($id);
$f->setColumn($fs['column']);
if ($f->getSign() !== $fs['sign']) {
if ($f->isRootNode()) {
$filter = $f->setSign($fs['sign']);
} else {
$filter->replaceById($id, $f->setSign($fs['sign']));
}
}
$f->setExpression($fs['value']);
}
}
krsort($operators, version_compare(PHP_VERSION, '5.4.0') >= 0 ? SORT_NATURAL : SORT_REGULAR);
foreach ($operators as $id => $operator) {
$f = $filter->getById($id);
if ($f->getOperatorName() !== $operator) {
if ($f->isRootNode()) {
$filter = $f->setOperatorName($operator);
} else {
$filter->replaceById($id, $f->setOperatorName($operator));
}
}
}
if ($addTo !== null) {
if ($addTo === '0') {
$filter = Filter::expression($add['column'], $add['sign'], $add['value']);
} else {
$parent = $filter->getById($addTo);
$f = Filter::expression($add['column'], $add['sign'], $add['value']);
if (isset($add['operator'])) {
switch ($add['operator']) {
case 'AND':
if ($parent->isExpression()) {
if ($parent->isRootNode()) {
$filter = Filter::matchAll(clone $parent, $f);
} else {
$filter = $filter->replaceById($addTo, Filter::matchAll(clone $parent, $f));
}
} else {
$parent->addFilter(Filter::matchAll($f));
}
break;
case 'OR':
if ($parent->isExpression()) {
if ($parent->isRootNode()) {
$filter = Filter::matchAny(clone $parent, $f);
} else {
$filter = $filter->replaceById($addTo, Filter::matchAny(clone $parent, $f));
}
} else {
$parent->addFilter(Filter::matchAny($f));
}
break;
case 'NOT':
if ($parent->isExpression()) {
if ($parent->isRootNode()) {
$filter = Filter::not(Filter::matchAll($parent, $f));
} else {
$filter = $filter->replaceById($addTo, Filter::not(Filter::matchAll($parent, $f)));
}
} else {
$parent->addFilter(Filter::not($f));
}
break;
}
} else {
$parent->addFilter($f);
}
}
}
return $filter;
}
