on 4/21/08 2:06 AM, [EMAIL PROTECTED] purportedly said:
I am trying to figure out how to calculate a running total using core
data. I have created an entity called Transactions that have the
following properties.
Transactions
amount
balance
snip
This routine only copies the amount
First issue I see is how you can know what transaction objects occur prior
to any given object. I don't think you can rely on objects being retrieved
in any specific order that your data model doesn't enforce.
You're correct - you can't rely on the order in which instances are
fetched.
... of course, even if you use a predicate to specify a date range,
the transaction order still doesn't matter. I digress.
Sorry - this is confusing. I meant to delete this paragraph after I
realized that the OP is talking about a running balance after each
transaction, rather than the
