Hi, thanks for the answers.
The thing I want to do is perform some semantic refactorings.
So I need to know wich are all the special annotations that SMW use. Your
recomendation is to look into the user manual and make a compilation of all
of them ? Maybe they belong to a category so it´s so much easy to look for..
Then I need to modify and update some annotations, so this may be done by
editing the wiki-text in the page where it´s belonge?
Thanks!
On Tue, Sep 6, 2011 at 11:54 AM, Markus Krötzsch <
mar...@semantic-mediawiki.org> wrote:
> On 06/09/11 15:16, Yaron Koren wrote:
>
>> Hi Markus,
>>
>> It's not quite true that SMW "only stores data that is actually found on
>> a page" - there's also metadata that it can store, like the current
>> "Modification date" special property. I guessed, when I read Mauricio's
>> email, that that's what he was talking about, though I could be wrong.
>>
>
> Right, this is a special case that I did not think about. In this case, it
> is actually only the modification date that is stored by SMW. It turned out
> that it is not so easy to have a simple, unified place to get and record
> such MediaWiki-based data in SMW, hence it was only done for the
> modification date yet (and this is already covered in two places so as to
> not be deleted accidentally in update operations). Other data of this type
> would be handled similarly, but it depends on the data where exactly is the
> best place to get it from MW.
>
> Markus
>
> On Tue, Sep 6, 2011 at 9:49 AM, Markus Krötzsch
>> <mar...@semantic-mediawiki.org
>> <mailto:markus@semantic-**mediawiki.org<mar...@semantic-mediawiki.org>
>> >>
>>
>> wrote:
>>
>> On 05/09/11 15:34, Mauricio Etchevest wrote:
>> > Hi,
>> >
>> > I'm working on an new extension for SMW.
>>
>> Great.
>>
>> >
>> > There're two things that don't work out:
>> >
>> > My extension has to generate new semantic annotations without any
>> user
>> > input,
>> > Anybody could tell me how to start ? Any recommendations on what to
>> > read or which classes are important to do that?
>>
>> You might want to look at the SMWWriter extension for SMW that
>> addresses
>> part of this task. However, SMW is not a general purpose store for
>> annotations and it only stores data that is actually found on a page
>> (in
>> wikitext). So adding annotations can only be done by writing the
>> wiki text.
>>
>> >
>> > Anyone could tell my where to find a list of all semantic
>> annotations
>> > that users can use ? I have the feeling that I'm missing
>> something here,
>> > It seems yo me that there might be more semantic annotations than
>> the
>> > ones that appear in the user manual.
>>
>> Users can use any annotation they like. With this I mean: they can use
>> properties with arbitrary names and they can assign arbitrary values to
>> these properties for every page. The only restriction is that the value
>> must make sense in the datatype of the property (for example, a
>> property
>> of type Number can only have values that are numbers).
>>
>> There are also a few special annotations that SMW looks for to figure
>> out certain user settings. For example, the datatype of a property is
>> set as a value for the property "has type" as in [[has type::Number]].
>> These special things are what is documented in the user manual. All
>> other annotations do not have a special meaning for SMW (they are
>> "just"
>> data).
>>
>> Regards
>>
>> Markus
>>
>> >
>> >
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