Need some assistance with dynamic database updates done through a loop

Question

In the part of my application that I'm currently working on
I'm trying to dynamically update a local database every time a
change is made to the dataProvider(ArrayCollection) when a dragDrop
action is done. After doing some more research I found that the
update "function"(my trace placeholder) is fine where it is, the
problem is that it is firing the insert function for each and every
row every time something is dragged onto the datagrid essentially
cloning all the entries in the database while updating the original
items. So I've narrowed down my problem to figuring out how to get
the insert function to fire only once for new items and skipped
when updating items. The database is a local as this is an AIR app,
I'm posting this here since I feel this is more of a flex issue
than an AIR issue. I've already tried adding an else clause to the
if statement but that doesn't work along with else if. Thanks in
advance.
Here's my code so far:

Answer 1

Ok, one thing I'm going to try today is this; essentially I'm
going to
say, "forget that for-loop, just let it update the
dataProvider". What
I'm going to do is write another function that runs each row
of the dp
through a filterFunction and checks to see if it is there or
not, if
it is there, then update the editable values, if not, then
insert a
new row. Since this would be invoked after the dataProvider
update, I
may just save it until the user closes the window in any way
and then
run this as a save and quit function. It would also help to
be able to
have it available in a button.
If anyone has a better idea on how to do this, don't hesitate
to tell me.