/**
* @param $filter
*
* @return $this|self
*/
public function addFilter(AbstractField $filter) : self
{
if (!$this->filtersForm) {
$this->filtersForm = new Form();
$this->filtersForm->setMethod('GET')->setName($this->stateId ? $this->stateId : 'grid')->setAction(self::request()->getUri()->get());
$this->navbar->add($this->filtersForm);
}
if ($this->stateId) {
$filter->setName($this->stateId . '_' . $filter->getName());
}
$this->filtersForm->add($filter);
$this->filtersForm->setAction(Uri::parse($this->filtersForm->getAction())->removeQuery($filter->getName())->get());
if ($filter->getLabel()) {
$filter->getLabel()->addClass('sr-only');
}
return $this;
}
