public function testAppliesArrayOdFilters()
{
$filter1 = new NativeFilter(FILTER_SANITIZE_STRING);
$filter2 = new NativeFilter(FILTER_SANITIZE_NUMBER_INT);
$input = 'x11';
$filtered = $filter1->filter('test', $input);
$filtered = $filter2->filter('test', $filtered);
$form = new \Okneloper\Forms\Form();
$form->add('text', 'test');
$form->setFilters(['test' => [$filter1, $filter2]]);
$form->submit(['test' => $input]);
$this->assertSame($filtered, $form->val('test'));
}
/**
* Apply filter or array of filters to a form value
*
* @param $filter
* @param $key
* @param $value
* @return mixed|string
* @throws \Exception
*/
protected function applyFilter($filter, $key, $value)
{
if (is_array($filter)) {
// call the function recursively to apply every filter i the array
foreach ($filter as $singleFilter) {
$value = $this->applyFilter($singleFilter, $key, $value);
}
return $value;
} else {
if (is_object($filter)) {
if (!$filter instanceof FilterInterface) {
throw new \Exception("Filter object should implement FilterInterface.");
}
} else {
// cast to array
if (!is_array($filter)) {
$filter = [$filter];
}
// add second argument
if (!isset($filter[1])) {
$filter[1] = null;
}
$filter = new NativeFilter($filter[0], $filter[1]);
}
return $filter->filter($key, $value);
}
}
