fix crash when event has no price set ID
Resolves #313 (closed), but is only lightly tested.
$formHelper->getPriceFieldOptionIDs() on line 130 crashes if no price set exists. So we ensure we have a price set before entering this if block.
Resolves #313 (closed), but is only lightly tested.
$formHelper->getPriceFieldOptionIDs() on line 130 crashes if no price set exists. So we ensure we have a price set before entering this if block.