Hi.
I want to recode my python webapplication script because it should run
on the Google App Engine.
Before I used SQL but now I must rewrite my database queries in GQL/
Datastore by Google.
I have problems to delete database entries. I want delete entries by
ID but it doesn't work.
My db class:
<code>
class board_topic_entry(db.Model):
title = db.StringProperty(required=True)
name = db.StringProperty(required=True)
message = db.TextProperty()
</code>
The column "ID" is generated and filled with consecutive numbers
automatically. True?
When I want delete a explicit database entry, I use this query:
(for example)
<code>
#...
q = db.GqlQuery("SELECT __key__ FROM board_topic_entry WHERE
ID=20")
results = q.fetch(10)
db.delete(results)
return 'deleted'
</code>
It doesn't work! (But I get no error messages) When I do an operation
with an other database column such as:
<code>
#...
q = db.GqlQuery("SELECT __key__ FROM board_topic_entry WHERE
title='test123'")
results = q.fetch(10)
db.delete(results)
return 'deleted'
</code>
IT WORKS!
Why?
How can I say: "Please delete the entry with the ID "X" ?
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