public static function normalizeBrackets(array $input, array $validKeys)
{
$output = [];
foreach ($input as $key => $value) {
$attribute = null;
$options = [];
if (is_int($key)) {
if ($value) {
if (is_string($value) && in_array($value, $validKeys)) {
$attribute = $value;
} elseif (is_array($value)) {
if (array_key_exists(0, $value) && $value[0] && is_string($value[0]) && in_array($value[0], $validKeys)) {
$attribute = $value[0];
$options = $value;
unset($options[0]);
} elseif (array_key_exists('attribute', $value) && $value['attribute'] && is_string($value['attribute']) && in_array($value['attribute'], $validKeys)) {
$attribute = $value['attribute'];
$options = $value;
unset($options['attribute']);
}
}
}
} elseif ($key && is_string($key) && in_array($key, $validKeys)) {
$attribute = $key;
if ($value) {
if (is_string($value)) {
if ($value == 'invisible') {
$options['visible'] = false;
} elseif (class_exists($value) && is_subclass_of($value, Object::className())) {
$options['class'] = $value;
} else {
$options['type'] = $value;
}
} elseif (is_array($value)) {
$options = $value;
}
} elseif ($value === false) {
$options['visible'] = false;
}
}
if (array_key_exists($attribute, $output)) {
$output[$attribute] = ArrayHelper::merge($output[$attribute], $options);
} else {
$output[$attribute] = $options;
}
}
return $output;
}
/**
* @inheritdoc
*/
public function init()
{
parent::init();
$this->db = Instance::ensure($this->db, Object::className());
}