Hello Byrial ,

by taking a look to low level datatypes list :
http://www.wikidata.org/wiki/Special:ListDatatypes
does representing common media files in strings considered to be an in
consistency that will be fixed in the next releases ? or just it will stay
as this forever ?

another question:

if i wanted to get all the datatypes and map them to the parallel xsd types
, how can i get an updated list with all wikiData properties and their
datatypes not the low level.


thanks
Regards



On Wed, Aug 21, 2013 at 8:12 PM, Byrial Jensen <byr...@vip.cybercity.dk>wrote:

> Den 21-08-2013 19:45, Hady elsahar skrev:
>
>> Hello All ,
>>
>> i was looking at WikiData dump , specifically this one :
>> wikidatawiki-20130818-pages-**meta-hist-incr.xml.bz2
>>
>> then i came to this statement
>>
>> the property P158 which is the seal flag image .
>> http://www.wikidata.org/wiki/**Property:P158<http://www.wikidata.org/wiki/Property:P158>
>> and it's DataType should be  "Commons media file"  ? not "string" ?
>> i'm not sure if it's always the same way and i don't get it , or the
>> statement data is not consistent with property datatypes?
>>
>
> The values for properties of type commonsMedia are always stored as
> strings. That's why there is no row for commonsMedia in my table at
> http://www.wikidata.org/wiki/**User:Byrial/Statement_**
> statistics#Properties_after_**their_value_type<http://www.wikidata.org/wiki/User:Byrial/Statement_statistics#Properties_after_their_value_type>
>
>
>  another Question : should i usually rely on the datatypes written in the
>> json dumps or should i build and index of wkidata properties and their
>> datatypes to avoid such situation ?
>>
>
> You need both the datatype of the property (to distinguish ordinary string
> values from commonsMedia strings) and the datatype for each stored value
> (to know if it is an ordinary value or novalue or somevalue).
>
> Regards,
> - Byrial
>
>
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>



-- 
-------------------------------------------------
Hady El-Sahar
Research Assistant
Center of Informatics Sciences | Nile University<http://nileuniversity.edu.eg/>
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