On 18/09/2014 12:36, Roland Perry wrote:
[...]
Bit more than two lines of code there.

Actually, all that stuff is already needed for Oyster loaded with a
Railcard.

One significant difference is that the Railcard discount flag is
actually stored on the Oyster card - that's not possible with CPCs
(just possibly might be with a future generation of them).

Irrelevant, because the sums for CPCs aren't done when the card is
swiped, they are done overnight when all the relevant information is to
hand.

Also irrelevant...


RPIs do ask to see associated Railcards.

Good. Whether a paper, Oyster or CPC trip, I hope they would.

The point is, how do they know a CPC has a Railcard associated with it
or not (without a live query of the database) ?