This is built into 2.0, but not 1.3. So... no. You might be able to use
Set::flatten() and pass those instead, then unflatten them in the
controller. Here's some code for unflattening that I wrote a while back:
public function unflatten($data, $separator = '.') {
$result = array();
foreach ($data as $flat => $value) {
$keys = explode($separator, $flat);
$keys = array_reverse($keys);
$child = array(
$keys[0] => $value
);
array_shift($keys);
foreach ($keys as $k) {
$child = array(
$k => $child
);
}
$result = Set::merge($result, $child);
}
return $result;
}
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