Yep, many to many relationships work well. They can also be
polymorhic and use inheritance with no problems.
On May 3, 12:09 am, Michael Shtelma mshte...@gmail.com wrote:
Hi all,
I have looked at twig, I liked it a lot, but there is one issue about many
to many relationships. Does Twig
On May 2, 2:40 pm, jtuchscherer jtuchsche...@gmail.com wrote:
John, are you saying that Twig, Objectify, SimpleDS, Slim3 and Siena
don't have this problem?
I can only definitivly speak for Twig but I am certain that the others
also would not suffer this problem or many many of the other
Hi,
do you have some sort of example or tutorial for the many to many relations
?
When I have tried using them, I got really strange exception.
Twig was not able to determine the key for some dependent entities...I think
I was doing smth wrong...
I will describe the problem in with more details
On May 4, 12:02 am, Michael Shtelma mshte...@gmail.com wrote:
When I have tried using them, I got really strange exception.
Twig was not able to determine the key for some dependent entities...I think
I was doing smth wrong...
Ah yes, when you have circular references and you use auto
Thank you, yes, now I have found out this too :))) I had just to do some
more experiments
Twig is working great with many to many relationships, I will defenitely use
it :)).
Sincerely,
Michael Shtelma
On Tue, May 4, 2010 at 12:05 AM, jd jdpatter...@gmail.com wrote:
On May 4, 12:02 am,
Sorry to revive this old topic, but I still see this problem in
1.3.3.1
I get it in the following scenario:
class Parent {}
class Child {
private Key id;
private Parent mother;
private Parent father
}
Error message:
Child has multiple relationship fields of type Parent: father and
mother.
Hi all,
I have looked at twig, I liked it a lot, but there is one issue about many
to many relationships. Does Twig support them?
Sincerely,
Michael Shtelma
On Sun, Mar 28, 2010 at 5:25 PM, John Patterson jdpatter...@gmail.comwrote:
There are alternatives: Twig, Objectify, SimpleDS, Slim3,
Hi GAE team,
Any workarounds for this issue?
Thanks
On Feb 14, 8:55 am, Payam pmoghad...@gmail.com wrote:
The problem is still not solved.
Although you can persist an object with multiple relations of the
same type. When you actually query the object, the retrieved object
has duplicates
There are alternatives: Twig, Objectify, SimpleDS, Slim3, Siena. Take
your pick and get your app working today.
On 28 Mar 2010, at 21:47, Trung wrote:
Hi GAE team,
Any workarounds for this issue?
Thanks
On Feb 14, 8:55 am, Payam pmoghad...@gmail.com wrote:
The problem is still not
The problem is still not solved.
Although you can persist an object with multiple relations of the
same type. When you actually query the object, the retrieved object
has duplicates for the multiple relations.
As in, if I were to persist instances A, B inside C. When I query for
C, both objects
Hi all,
I am also experiencing this problem on GAE 1.3.0.
Using multipleRelationsOfSameTypeAreErrors helps not in all cases,
when I am trying to read such entities I get mentioned exception.
Are the any solution for the 1.3.0 ?
Thanks,
Michael
On Jan 21, 9:20 am, cowper iamco...@gmail.com
Michael,
In your jdoconfig.xml file add this entry:
property
name=datanucleus.appengine.allowMultipleRelationsOfSameType
value=true/
Thanks
On Jan 26, 3:12 pm, Michael Shtelma mshte...@gmail.com wrote:
Hi all,
I am also experiencing this problem on GAE 1.3.0.
Using
Hi,
I have a similar issue with 1.3.0 however it arises when the types
are the same and not related to inheritance of any type.
The work around suggested doesn't seem to work. Is the workaround
valid for 1.3.0?
thx,
Conor
On Dec 4 2009, 9:52 pm, Max Ross (Google) maxr
+appeng...@google.com
One more thing- I get this error the first time I hit this code after
idling or starting up, but subsequent runs work ok.
Dan
On Sat, Jan 16, 2010 at 2:51 AM, Daniel Benamy dben...@gmail.com wrote:
I think I'm hitting this check since updating to 1.2.8. I've got
something like:
class A {
B
Datastore cursors is something we hoped to support in 1.2.8 but it didn't
quite make it in. There are changes in the ORM code to support it but it's
not actually enabled in the datastore back-end. This should be available
early next year.
On Sat, Dec 12, 2009 at 7:46 AM, David Fuelling
Thanks Max, that fixed my problem with the inheritence.
One other question: What version of the ORM code is currently
included in the 1.2.8 SDK? I only ask because I noticed that the
release notes for ORM VERSION 1.0.4 Final includes Support
datastore cursors, and am wondering if that is
Hmm...looks like I'm not using @MappedSuperclass in my abstract parent
class. I'll give that a try and see if it fixes things.
On Dec 9, 8:27 pm, David Fuelling sappe...@gmail.com wrote:
Thanks Max! Just updated to 1.2.8 and ran into this problem. The
workaround looks good, though I think
I've made a backwards-compatible bug fix release candidate available at
http://code.google.com/p/datanucleus-appengine/downloads/list
The release contains a fix for this issue and also renames the config
property to datanucleus.appengine.allowMultipleRelationsOfSameType
Max
On Thu, Dec 10, 2009
Thanks Max! Just updated to 1.2.8 and ran into this problem. The
workaround looks good, though I think you specified the boolean value
wrong if you want to disable this error. Should be:
property
name=datanucleus.appengine.multipleRelationsOfSameTypeAreErrors
value=false/
In my case, the app
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