private function findNode(array $array, array $keys, $unfold_all)
{
// first, if it's a partial, let's naviguate
if (isset($array[$this->prefix . 'type']) && $array[$this->prefix . 'type'] === 'partial') {
$p_name = $array[$this->prefix . 'partial'];
if (!isset($this->schema['partials']) || !isset($this->schema['partials'][$p_name])) {
throw new \Exception("You're using a partial but partial '{$p_name}' is not defined in your schema");
}
return $this->findNode($this->schema['partials'][$p_name], $keys, $unfold_all);
}
// we're on target, return the result
if ($keys === array()) {
// on more thing: dig one more level of partial
return $this->unfoldPartials($array, $unfold_all);
}
// they're still some keys, dig deeper
if (isset($array[$this->prefix . 'type'])) {
switch ($array[$this->prefix . 'type']) {
case 'prototype':
//we have to ignore one key
array_shift($keys);
return $this->findNode($array[$this->prefix . 'prototype'], $keys, $unfold_all);
case 'array':
// let's check the children
if (isset($array[$this->prefix . 'children'][$keys[0]])) {
$child = $array[$this->prefix . 'children'][$keys[0]];
array_shift($keys);
return $this->findNode($child, $keys, $unfold_all);
}
break;
case 'choice':
// choice, return an array of possibilities
$choices = array();
foreach ($array[$this->prefix . 'choices'] as $name => $choice) {
try {
$choices[$name] = $this->findNode($choice, $keys, $unfold_all);
} catch (\Exception $e) {
}
// exception = invalid choice, so skip it
}
return $choices + array($this->prefix . 'is_choice' => 'true');
}
}
throw new \Exception("Unable to find child {$keys[0]}");
}
