TTPLAT-552 cleanup uses of class methods going away since GrantPurchase can have more than one sourceable_type
TTPLAT-552 cleanup uses of class methods going away since GrantPurchase can have more than one sourceable_type

camsys/transam_funding,camsys/transam_funding,camsys/transam_funding,camsys/transam_funding,camsys/transam_funding