It's actually much easier than that.
// Create main object
// Create child object
mainObj.setChild(childObj);
This will automatically set the correct PK and FK values.
You can also commit both changes at the same time rather than separately.
On Mon, Aug 9, 2010 at 12:11 PM, mr.abanjo wrote:
Hi,
my application need to generate a "parent" object and then create a "child"
object that contains the PK value of the parent.
I'm using MySQL and the colum "id" is "autoincrement". ( both tables )
So first i create the main object (it extends DataObject ):
MainObject mainObj = new MainObject()
On Aug 9, 2010, at 6:08 PM, Bruno René Santos wrote:
I have been analyzing the behaviour of the commitChanges lifecycle
and inferred
that only when all database operations that are contained on the
current context
are successfully performed do the post... callbacks are called.
Correct.
I handle error trapping on the commit statement. If it throws an
exception, then I do something about it.
Rollbacks in practice over the last few years have almost always been
due to the loss of the ability to change database records (network
issues, database server issues), so logging has to oc
I have been analyzing the behaviour of the commitChanges lifecycle and inferred
that only when all database operations that are contained on the current context
are successfully performed do the post... callbacks are called. So if you have
like 4 inserts on the context and one of them raises an exc
Wouldn't an important business-concern (or rule) be that if there was indeed a
rollback, then one might want to log it (via a Cayenne insert)?
I am doing something like this right now and it is a tad tricky.
On Aug 9, 2010, at 10:37 AM, Mike Kienenberger wrote:
> On Mon, Aug 9, 2010 at 5:41
On Mon, Aug 9, 2010 at 5:41 AM, Bruno René Santos wrote:
> Im using cayenne on a banking system, where commits and rollbacks are
> critical.
> I was thinking about using cayenne callbacks to include the creation of logs
> during database operations. My doubt is what happens when there is a rollba
Hi Martin,
I see. I guess the concept of a "framework as an example" wasn't
immediately clear to me. Now I added a link to Yafra to the examples
page. Thanks a lot for your work!
Andrus
On Aug 8, 2010, at 11:16 PM, Martin Weber wrote:
Hi Andrus,
agree with your point, wrong location and
I meant
callbacks are not called during rollback :)
2010/8/9 Andrey Razumovsky
> Hi,
>
> Unless something's changed, callbacks are not called during callback. Also
> note that only "post" callbacks can tell for sure that DB operations had
> happened
>
> 2010/8/9 Bruno René Santos
>
> Hello all
Hi,
Unless something's changed, callbacks are not called during callback. Also
note that only "post" callbacks can tell for sure that DB operations had
happened
2010/8/9 Bruno René Santos
> Hello all,
>
>
>
> Im using cayenne on a banking system, where commits and rollbacks are
> critical.
> I
Hello all,
Im using cayenne on a banking system, where commits and rollbacks are critical.
I was thinking about using cayenne callbacks to include the creation of logs
during database operations. My doubt is what happens when there is a rollback on
the database during a transaction in terms of
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