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repeating fields into a related field


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I am making a invoice database that has repeating filelds for itemid, quantity, price etc.

One of the features i want to add is to be able to subtract the quantity from the number in stock; which is in another database.

I have a script that should work. but filemaker doesn't allow coping it so i can't show what i have.

but the basic idea is that it loops through the every repetiton with getRepettion and then does:

SetField["items::quantityOnHand", extend(items::quantityOnhand) - GetRepetition("quantity", extend(loopVar)]

that above line just takes all the quantitys off the first Item.

How can i get around this?

Thanks

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ya. thanks.

just figured that out when i did a search of old topics.

I did have that was in the first draft. but i couldn't figure a way to total the line items in the master database. but i realized tis as easy as Sum(lineitems: tongue.gif" border="0 rice)

back to the drawing board.

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