public function preProcess() {
$this->_contactID = CRM_Utils_Request::retrieve('cid', 'Positive', $this);
$this->_id = CRM_Utils_Request::retrieve('id', 'Positive', $this);
- $context = CRM_Utils_Request::retrieve('context', 'String', $this);
+ $context = CRM_Utils_Request::retrieve('context', 'Alphanumeric', $this);
$this->assign('context', $context);
$values = array();