User activation emails [modx 2.2.2]

[[!Register? 
	&submitVar=`login-register-btn` 
	&preHooks=`aiRequired,ciRequired,RegisterProfilePreHook,mcSubscribePreHook,profileEditCheckBoxes,`
     &postHooks=`RegisterUserGroup`
	&activationResourceId=`211` 
	&activationEmailTpl=`lgnCustomActivateEmailTpl` 
	&activationEmailSubject=`Thanks for Registering!` 
	&activationttl=`1440` &submittedResourceId=`212` 
	&usernameField=`username` 
	&passwordField=`password` 
	&emailField=`email` 
	&customValidators=`agreeEULA` 
	&validate=`a bunch of stuff...` 
]]

//  snippet.RegisterUserGroup.php
 
$specialty = $hook->getValue('specialty');
$country =  strtolower($hook->getValue('excountry'));
$username = $hook->getValue('username');
$staff = $hook->getValue('staff-or-resident'); //Staff | Resident

$joingroup = '';
$joinrole = '';

switch ($specialty){
	
	case 'Medical Oncologist / Hematologist' :
		if($country == 'canada'){
			if($staff == 'Staff'){
				$joingroup = 2; // Canadian Medical Oncologists
				$joinrole = 3; // Staff Role
			}else{
				$joingroup = 3; // Canadian Resident
				$joinrole = 5; // Resident Role
			}
		}else{
			if($staff == 'Staff'){
				$joingroup = 5; // Int Med Onc 
				$joinrole = 7; // IntMedOnc Role
			}else{
				$joingroup = 17; // International Resident
				$joinrole = 5; // Resident Role
			}
		}
		break;
		
	case 'Other' :
		$joingroup = 15; // Other 
		$joinrole = 1; //member
		break;
		
	case 'Surgical/Radiation Oncologist' :
		$joingroup = 9; // Surgical/Radiation Oncologist
		$joinrole = 8; // Other HC Professional Role
		break;
		
	case 'Palliative Care Specialist (Oncology)' :
		$joingroup = 10; // Palliative CAre Specialist
		$joinrole = 8; // Other HC Professional Role 
		break;
		
	case 'General Practitioner in Oncology (GPO)' :
		$joingroup = 11; // General Practitioner in Oncology
		$joinrole = 8; // Other HC Professional Role
		break;
		
	case 'General Practitioner' :
		$joingroup = 12; // General Practitioner
		$joinrole = 8; // Other HC Professional Role
		break;
		
	case 'Nurse' :
		$joingroup = 13; // Nurse
		$joinrole = 8; // Other HC Professional Role
		break;
		
	case 'Pharmacist' :
		$joingroup = 14; // Pharmacist
		$joinrole = 8; // Other HC Professional Role 
		break;
	
	default :
		$joingroup = '0'; // none
		$joinrole = '0'; // none 
		break;	
}

if($joingroup > 0 && $joinrole > 0){
	$user = $modx->getObject('modUser', array('username'=>$username));
	$user->joinGroup($joingroup, $joinrole);
	if(!$user->save()){
		return false;
	};
}

return true;