You are not required to actually use the ids returned by allocate_ids - once the function returns, you are guaranteed that the datastore will not assign those ids.
On Oct 28, 11:18 pm, 风笑雪 <kea...@gmail.com> wrote: > I found > this:http://code.google.com/intl/en/appengine/docs/revision_history.html > > 2010-04-21 > The datastore now supports pre-allocating system IDs in > application-defined ranges. This is useful for preserving system IDs > when importing entities exported from another app. > > So I think whenever you put an entity into datastore without specify > an id, datastore will generate a one not exist before. But when you > import a large number of entities, maybe you want to make sure at the > same time, datastore won't generate an entity id the same as you > imported, otherwise you may overwrite it by yourself. > > ---------- > keakon > > > > > > > > On Fri, Oct 29, 2010 at 5:41 AM, vivpuri <v...@vivekpuri.com> wrote: > > I am having an issue with allocate_ids(model_key, count) - > >http://code.google.com/appengine/docs/python/datastore/functions.html > > - on localhost. My understanding of this function is that IDs > > allocated via this function call for a kind, will not be generated > > again. Is there a requirement to use ids generated by this function > > call in Keys to ensure that they will not be issued again? > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine" group. > > To post to this group, send email to google-appeng...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-appengine+unsubscr...@googlegroups.com. > > For more options, visit this group > > athttp://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
