Re: Prefetched objects aren't used (2.0.4)

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Thu Jul 09 2009 - 02:59:53 EDT

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    Let's look at the details of mapping of this relationship. Is it
    mapped as 1..1 or 1..N? If it is 1..1, is there a "to dep pk" flag set
    in one of the directions?

    Andrus

    On Jul 8, 2009, at 12:43 PM, Donald Vrakking wrote:

    > Hi,
    >
    >
    > I have two objects A and B which have an m:1 relation (it's used as
    > a 1:1). I created a SelectQuery to get instances of A and added a
    > prefetch to B. After executing the query, A only has a toOneFault
    > for B, so when I access B it will execute another
    > (relationship)query on the database.
    >
    > It doesn't matter if I use a DISJOINT or a JOINT prefetch, the
    > result is the same; all the necessary queries are executed and the
    > datarows for B are put in the cache, but the property on A isn't
    > updated with the prefetched B. Does anybody know how to explain
    > (and fix ;-)) this?
    >
    > Thanx,
    >
    > Donald Vrakking
    >



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