To state it generally, from formc I want to be able to run a method (e.g. from a button on formc) which behaves slightly differently depending on if formc was reached via the relation tablea_to_tablec or via tableb_to_tablec.
More particularly, formc is to show a listing of the set of table-c records which are children of either a particular table-a record or of a particular table-b record. formc has a button to "add record". If formc was reached via the relation tablea_to_tablec then the "add" method should construct a child record by assuming the current table-a parent and prompting the user for a
record from table-b to use as the other parent (and vice-versa).
Currently I can see only two ways of handling this:
1) replicate formc - call formc-a from forma and formc-b from formb
![Sad :-(](./images/smilies/icon_sad.gif)
2) on displaying formc, set the name of the button element to indicate via which relation formc was reached. Maybe I'm being paranoid, but this smells to me like the dreaded "self-modifying code" (which IIRC we discarded as a Bad Idea over a quarter of a century ago).
Any other suggestions?
Thanks,
Neale.