public function all($entity)
{
parent::all($entity);
$this->filter = \DataFilter::source(new Link());
$this->filter->add('id', 'ID', 'text');
$this->filter->add('display', 'Display', 'text');
$this->filter->submit('search');
$this->filter->reset('reset');
$this->filter->build();
$this->grid = \DataGrid::source($this->filter);
$this->grid->add('id', 'ID', true)->style("width:100px");
$this->grid->add('display', 'Display');
$this->grid->add('url', 'Model');
$this->grid->add('show_menu', 'Show in Menu')->cell(function ($value, $row) {
return $value ? "True" : "False";
});
$this->addStylesToGrid();
return $this->returnView();
}