Gc\User\Role\Model::save PHP Method

    public function save()
    {
        $this->events()->trigger(__CLASS__, 'before.save', $this);
        $arraySave = array('name' => $this->getName(), 'description' => $this->getDescription());
        try {
            $roleId = $this->getId();
            if (empty($roleId)) {
                $this->insert($arraySave);
                $this->setId($this->getLastInsertId());
            } else {
                $this->update($arraySave, array('id' => $this->getId()));
            }
            $permissions = $this->getPermissions();
            if (!empty($permissions)) {
                $aclTable = new TableGateway('user_acl', $this->getAdapter());
                $aclTable->delete(array('user_acl_role_id' => $this->getId()));
                foreach ($permissions as $permissionId => $value) {
                    if (!empty($value)) {
                        $aclTable->insert(array('user_acl_role_id' => $this->getId(), 'user_acl_permission_id' => $permissionId));
                    }
                }
            }
            $this->events()->trigger(__CLASS__, 'after.save', $this);
            return $this->getId();
        } catch (\Exception $e) {
            $this->events()->trigger(__CLASS__, 'after.save.failed', $this);
            throw new \Gc\Exception($e->getMessage(), $e->getCode(), $e);
        }
    }

 /**
  * Create role
  *
  * @return \Zend\View\Model\ViewModel|array
  */
 public function createAction()
 {
     $form = new RoleForm();
     $form->initPermissions();
     $form->setAttribute('action', $this->url()->fromRoute('config/user/role/create'));
     if ($this->getRequest()->isPost()) {
         $post = $this->getRequest()->getPost()->toArray();
         $form->setData($post);
         if ($form->isValid()) {
             $roleModel = new Role\Model();
             $roleModel->addData($form->getInputFilter()->getValues());
             $roleModel->save();
             $this->flashMessenger()->addSuccessMessage('Role saved!');
             return $this->redirect()->toRoute('config/user/role/edit', array('id' => $roleModel->getId()));
         }
         $this->flashMessenger()->addErrorMessage('Role can not saved!');
         $this->useFlashMessenger();
     }
     return array('form' => $form);
 }