/**
* Assigns an authorization item to a user making sure that
* the user doesn't already have this assignment.
* Overloads the parent method to make sure that
* we do not assign already assigned items.
* @param string $itemName the item name.
* @param mixed $userId the user ID (see {@link IWebUser::getId})
* @param string $bizRule the business rule to be executed when {@link checkAccess} is called
* for this particular authorization item.
* @param mixed $data additional data associated with this assignment.
* @return CAuthAssignment the authorization assignment information.
* @throws CException if the item does not exist or if the item has already been assigned to the user.
*/
public function assign($itemName, $userId, $bizRule = null, $data = null)
{
// Make sure that this user doesn't already have this assignment.
if ($this->getAuthAssignment($itemName, $userId) === null) {
return parent::assign($itemName, $userId, $bizRule, $data);
}
}
/**
* Removes cache before assigning a new auth item
* @param string $itemName the item name
* @param mixed $userId the user ID (see {@link IWebUser::getId})
* @param string $bizRule the business rule to be executed when {@link checkAccess} is called
* for this particular authorization item.
* @param mixed $data additional data associated with this assignment
* @return CAuthAssignment the authorization assignment information.
* @throws CException if the item does not exist or if the item has already been assigned to the user
* @throws CExeption if the application component could not be loaded.
*/
public function assign($itemName, $userId, $bizRule = null, $data = null)
{
if (Yii::app()->getComponent($this->cacheID) !== null) {
Yii::app()->getComponent($this->cacheID)->delete($this->cacheID . '_' . $itemName . '_' . $userId);
return parent::assign($itemName, $userId, $bizRule, $data);
} else {
throw new CException('Application component ' . $this->cacheID . ' could not be loaded.');
}
}
