public function can_change_payment()
{
// Allow if Membership is new/unsaved.
if (empty($this->id)) {
return true;
}
// Allow if no payment detail was entered yet (incomplete setup).
if (empty($this->payment_type)) {
return true;
}
// Allow if no members signed up yet.
$members = MS_Model_Relationship::get_subscription_count(array('membership_id' => $this->id));
if (empty($members)) {
return true;
}
// Otherwise payment details cannot be changed anymore.
return false;
}
