On Mar 19, 3:01 pm, Anonymous Coderrr wrote:
>
> The documentation for entity-groups and transactions say that entities
> must all be in the same eneity group for transaction operations to
> work. But it does not specifically say how to put entities in the
> same entity group, other than some me
Data integrity - I want this to be atomic.. I do not want either A
or the list of B's saved if the other fails to save.
On Mar 19, 3:16 pm, djidjadji wrote:
> Why do you need a transaction for this operation?
> To create B objects that are children of some A use
>
> a=A()
> a.put() # create
Why do you need a transaction for this operation?
To create B objects that are children of some A use
a=A()
a.put() # create the parent object
bObjs = [B(parent=a, somestring=s) for s in somelist]
db.put(bObjs)
2009/3/19 Anonymous Coderrr :
>
> Hi,
>
> The documentation for entity-groups and t
