Please open a ticket. This should be doable without too much work.

On Jul 26, 9:11 pm, howesc <[email protected]> wrote:
> Hi GAE web2py users,
>
> I ran into an issue today where i need to have atomic inserts into a GAE
> table.  in a normal database you can do a read/write lock and check if a row
> exists before you insert, and/or put unique constraints on columns to make
> this happen.  in GAE you can't.
>
> the right answer on how to do this is
> here:http://code.google.com/appengine/docs/python/datastore/modelclass.htm...
> and it assumes that you can generate a string key that would be predictable
> on multiple insert attempts.  (in my case i can)
>
> now, i'd love to be able to use that with web2py, but web2py expects that
> all IDs are integers.  i think that a way to enhance DAL to work with this
> might be to:
>  - use GAE reference properties for reference
> fields:http://code.google.com/appengine/docs/python/datastore/typesandproper...
>  - allow user to set the GAE named key when they want to, otherwise let DAL
> and GAE assign an int ID
>  - come up with a way (inside or outside of DAL) that allows us to use the
> get_or_insert() method of GAE models when desired.
>
> before i dig into trying to create a patch for review, are there thoughts,
> concerns, gotchas, or other things i should think about?
>
> thanks much for your time!
>
> christian

Reply via email to