public function action_deleteMaterial()
{
$group = new Model_Material('groups');
$data['groups'] = $group->getTree();
$url = $this->request->param('url');
$gid = $this->request->param('id');
if ($url == 'clear_cart') {
$res = $group->clearCart();
} else {
$mid = $materialId = $group->getMaterialIdByUrl($this->request->param('url'), $gid);
$res = $group->deleteMaterial($mid, $gid);
}
if ($res) {
Controller::redirect('admin/materials/' . $gid);
} else {
$data['errors'] = $group->getErrors();
}
$wpm['status'] = Cookie::get('wpm', FALSE);
$wpm['folder'] = Cookie::get('wpm_folder', '');
$this->template->content = View::factory('admin/admMaterials', array('data' => $data, 'wpm' => $wpm, 'user' => $this->user));
}