Duplicating master-detail record set in Forms - ?

I'm adding a duplicate function to one of my forms which is basically a master-detail with 3 detail blocks. Basically it saves the users having to type in the whole set of data again if they're only changng one or 2 items.

The way I can think of doing it at the moment is:

1. store pk (actually a surrogate id) of original master record.
2. use duplicate-record forms built in on the master block, then change the pk (id) to a new one.
3. use pl/sql to recreate the detail records from the original, using the id stored in step 1.
4. requery detail blocks to pick up data created in step 3.
5. ta-da, job done

Another option would be to replace steps 3 & 4 with some forms processing which gets the original detail data via a cursor and adds it to the forms blocks with create-record etc.

Any opinions (as if I have to ask) on the better of the 2 methods above.

Or, alternatively and probably more interesting to me, does anyone have a better way of doing it?

looking forward to your answers

cheers

   nigel

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