I'm in a dilemma - which way to go
I want to be able to bulk add items to a sale
with a relation table items-sales I can do this BUT and this is a BIG BUT!!
I DONT want to be able to select items that are already assigned to another sale
I could set some constraints - and disallow adding the sale item twice
but thats still confusing to the user - they would wonder why cant they add an item they select.
un selectable items should not be visible at all.
So I can use the mutiselct field and populate the array in a callback - but thats not the interface
users want - they want to be able to bulk-select items not add one at a time.
I guess I'm hinting at using functionality like that in get_relation_n_n_input