[google-appengine] Re: Programming Google App Engine book and code samples now available
Thanks for the Sample Programs. On Jan 25, 6:08 pm, Dan Sanderson wrote: > Greetings App Engine developers - > > The book *Programming Google App Engine*, written by yours truly and > published by O'Reilly Media, is now available in bookstores everywhere. The > book covers everything from the datastore to task queues, using both Java > and Python. > > http://www.amazon.com/Programming-Google-App-Engine-Infrastructure/dp...http://oreilly.com/catalog/9780596522735/ > > All of the code from the book is now available for download and online > browsing. The code is released under the Apache 2.0 license, and is > available as a Zip archive and accessible via a Mercurial repository in > Google Project Hosting. Even if you don't (yet) have a copy of the book, the > samples may be useful as a reference. And it's free! :) > > http://ae-book.appspot.com/http://ae-book.appspot.com/downloads/http://code.google.com/p/pgae-examples/ > > Also check out the website for the book for updates (there's a blog feed) > and errata. I'll be maintaining the code samples and testing them with > releases of App Engine for the near future. > > Feedback, bug reports and questions about the book and these samples are > most welcome. Let me know what you think! > > Thanks! > -- Dan -- 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.
[google-appengine] Re: Datastore Query problem
This may help
http://code.google.com/p/pgae-examples/source/browse/1e/java/ch08/queries/src/queries/JPAQueriesServlet.java
On Jan 26, 6:13 pm, BlueBlood wrote:
> Hi there,
> I'm a newbie with GAE, I'm using JPA to access datastore and I'm
> having a problem querying datastore.
>
> I have successfully inserted a few record into datastore using JPA but
> I can not read them back from datastore.
> Following is my code to query datastore.
>
> --
> EntityManager em = EMF.get().createEntityManager();
> Query query = em.createQuery("select t from
> com.test.dataschema.User_JPA as t");
> List result = query.getResultList();
>
> --
> EMF class definition:
>
> package com.fineart.dataschema;
> import javax.persistence.EntityManagerFactory;
> import javax.persistence.Persistence;
>
> public final class EMF {
>
> private static final EntityManagerFactory emfInstance =
> Persistence.createEntityManagerFactory("transactions-
> optional");
>
> private EMF() {}
>
> public static EntityManagerFactory get() {
> return emfInstance;
> }}
>
> --
>
> I would be so grateful if someone help me out.
> Thanks.
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[google-appengine] URGENT - URGENT: ValueError: Could not determine directory that contains both, this file and lib/ipaddr.
This ISSUE is nailing me down to hell. Please can someone kindly check how to
solve this? Its often happening. Cant find head nor tail of this. 2/3 weeks
works and then completely stop working unless i change the whole Goolge App
Engine and my apprtc.
[root@ip-10-59-143-73 lib]# uname -a
Linux ip-10-59-143-73 2.6.32-220.el6.x86_64 #1 SMP Wed Nov 9 08:03:13 EST 2011
x86_64 x86_64 x86_64 GNU/Linux
[root@ip-10-59-143-73 tmp]#/opt/python2.7/bin/python2.7
/var/tmp/google_appengine/dev_appserver.py --host 0.0.0.0 /var/tmp/apprtc
Traceback (most recent call last):
File "/var/tmp/google_appengine/dev_appserver.py", line 73, in
_DIR_PATH = _get_dir_path(os.path.join('lib', 'ipaddr'))
File "/var/tmp/google_appengine/dev_appserver.py", line 63, in _get_dir_path
'file and %s.' % sibling)
ValueError: Could not determine directory that contains both, this file and
lib/ipaddr.
^C
It has been running 3 weeks and last night its auto matically not working and
when-ever restarting the process, its throwing this above error
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