I am using Google App Engine for the backend to my elearning app. I am
trying to to a GQL query in the admin dashboard, in order to find
ActivityCompletion records for a certain user. The user field (or whatever
the non relational equivalent to 'field' is!) is called user, and uses a KEY
for th
Where where clause is filtering on the __key__ field of the
ActivityCompletion entity and not the User field. I assume it should look
something like:
where user = Key('User',9122) if user keys or numbers and not strings
otherwise
where user = Key('User',9122)
Also, I'm assuming ActivityCom
Wow I can't type this morning.
"Your" where clause is filtering on the __key__ field of the
ActivityCompletion entity and not the User field. I assume it should look
something like:
where user = Key('User',9122) if user keys "are" numbers and not strings
otherwise
where user = Key('User','
Lovely - works perfect! Sorry to have been such a dunce about this, I'm
used to mysql and have quite a bit of trouble getting my brained wrapped
around the finer points of the Datastore and using GQL.
thanks so much, you've saved me a ton of time.
--
You received this message because you are
Not a problem. Glad it was so easy. It is a bit of a mind shift from
relational databases.
On Wed, Dec 22, 2010 at 10:33 AM, stace wrote:
> Lovely - works perfect! Sorry to have been such a dunce about this, I'm
> used to mysql and have quite a bit of trouble getting my brained wrapped
> around
Just another FYI in case you're not aware of it. You might want to shorten
the entity name ActivityCompletion. Your entity names are in all the keys
and index entries so long entity names can add a great deal of metadata
overhead if you have lots of those entity kinds in the datastore. Otherwise
i
Thanks very much for the suggestion - we don't have too many models - just
10 or so - so perhaps now it's OK like this but I will definitely keep that
in mind for anything we do next! My programmer disappeared so I'm trying to
get a little bit up to speed on GAE, which is an uphill struggle, t
I have another query issue - not sure if I should do a new post or not - but
here it is!
I'm trying to find Activity types by using their ID/name value - which look
like this:
*Decoded entity key:* *Activity: name=Lesson/level3gratitude*
This doesn't prove as easy as searching for keys that ar
Are you actually putting " where 'name'/ID " in your GQL?
Don't you want the following:
SELECT * FROM Activity where __key__ =
Key('Activity','Lesson/level3gratitude')
On Wed, Dec 22, 2010 at 2:00 PM, stace wrote:
> I have another query issue - not sure if I should do a new post or not -
> b
Yes I am, this is what happens when a GAE moron tries to write GQL queries,
lol!
Thank you again, your help has made my day!
The problem with the samples on the App Engine docs site is that they are
not written for people who are starting from ZERO with understanding of
using GQL for queries -
Glad to be of help,
Stephen
On Wed, Dec 22, 2010 at 3:02 PM, stace wrote:
> Yes I am, this is what happens when a GAE moron tries to write GQL queries,
> lol!
>
> Thank you again, your help has made my day!
>
> The problem with the samples on the App Engine docs site is that they are
> not writt
Hi
You should probably avoid using GQL and stick to Query objects, then you
won't keep slipping into the SQL mindset.
There is no real benefit in using GQL at all, and is fraught with the
semantic problems of looking like SQL but being nothing like it ;-)
In addition some things are just a bit
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