Hi Ikai,
Could you please tell me what I am doing wrong. I am trying to run GQL
queries from Google App Engine site from Datastore Viewer.
1. I tried with '6192449487634432', 6192449487634432L, '6192449487634432L'
SELECT * FROM Docprod where __key__ = KEY('Docprod', 6192449487634432)
2. Docprod is a child of 'mrwdocbkup', so I tried also without any success:
SELECT * FROM Docprod where _key_ = KEY('mrwdocbkup', 4922171302346752,
'Docprod', 6192449487634432 )
value of the key I found in ID/Name column of all records (SELECT * FROM
Docprod)
I would like to use GAE Datastore for my app, but I need to know that if my
customer will have a problem I will be able to run quick query to be able
to provide better customer support.
Thank you,
Rimma
On Friday, December 2, 2011 1:16:29 PM UTC-5, Ikai Lan (Google) wrote:
> HI bart,
>
> Oy, I know what is causing this. The datastore admin is written using
> Python which has validations for fields like Address or GeoPt. The Java
> code does not, so it's possible to set this to null, which would cause this
> to error out.
>
> In general I advise people to use StringProperty as much as possible. To
> fix this, you have two choices:
>
> 1. Change the Address property to be non-null programmatically
> 2. Change the property on all entities to be a String property. You'll
> probably use App Engine mapreduce for this.
>
> I'm going to make a list of "polish" bugs and feature requests that I'm
> going to champion in an upcoming release. I'm wondering what the
> implications of a quick and dirty fix to remove the validations are.
> Unfortunately, if history is any kind of a teacher, the fix is NEVER that
> easy.
>
> --
> Ikai Lan
> Developer Programs Engineer, Google App Engine
> plus.ikailan.com | twitter.com/ikai
>
>
>
> On Fri, Dec 2, 2011 at 12:55 AM, bartprokop <proko...@gmail.com
> <javascript:>> wrote:
>
>> Hi, My application is developed in JAVA, utilizing JDO.
>> Unfortunatelly, I started today getting starnge errors - 500 when
>> trying to run GQL queries on my data:
>>
>> SELECT * FROM Przedszkole where __key__ =
>> Key('agtzfmUtZHppZWNrb3ITCxILUHJ6ZWRzemtvbGUYgooIDA')
>>
>> results with Server error 500 and strange message: "address must not
>> be empty."
>>
>> My application is http://e-dziecko.appspot.com .
>>
>> Any hint on this?
>>
>> More funny, access object programatically seems to work without any
>> interruption.
>>
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