SMW notes: Difference between revisions

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{{Person
Some tips and tricks for using Semantic Mediawiki from SMW mailing list, various web sites, etc.
|Image=Arashi_Daiko.jpg
 
|Home page=http://www.arashidaiko.org/home/home.htm
== Other tip sources ==
|Location=Montréal
 
|Arts=Music
http://smwforum.ontoprise.com/smwforum/images/a/ad/Manual_SMW.pdf
|Type=Group
 
|Tags=Music, Montréal, group
http://smw.referata.com/wiki/Special:BrowseData/Tips
}}
 
Founded in 1983, Arashi Daiko is a Japanese percussion performance group based in Montreal and comprised of members from different communities. With a repertoire of both traditional and original pieces, Arashi Daiko strives to spread Japanese culture to the greater community through music. The group and its members also believe in sharing the values of consideration, appreciation and respect through their performance and in the everyday lives of the members.
http://smwforum.ontoprise.com/smwforum/index.php/Example:All_libraries
 
http://help.wikia.com/wiki/Help:Semantic_MediaWiki/Tips_and_tricks
 
http://semantic-mediawiki.org/wiki/Image:SMW_quick_reference.pdf
 
== Data design ==
 
http://www.mediawiki.org/wiki/Extension:Semantic_Forms#Data_design_issues
 
- Create a top category for Semantic Classes. I called mine 'Categories'.
It holds only categories used to define a 'Is-a' relationship. Doing so has
at least two benefits : 1- You can do a query on your core content by
restricting it to the 'Categories' level. 2- You can define other
categories outside of that structure for whatever your system needs.
 
http://smwforum.ontoprise.com/smwforum/index.php/Example:How_to_realize_a_range_constraint_for_a_property
 
Redirects can be used to create property synonyms.
 
== Discussion ==
 
Categories can be hierarchical; properties can't (yet).
 
When to use categories vs properties?
 
== MW tricks ==
 
If you want to clear out old pages you can delete them and use
deleteArchivedRevisions.php to erase the deleted revisions from the
database.
 
=== Variables ===
 
You can make use of the VariablesExtension [1] and store the query (or its
result? I'd like to know which one, but in the end it doesn't really matter) in
a variable, which is helpful when you need the same query multiple times within
a page. It looks like this:
 
<nowiki>{{ #vardefine: some_variable_name | {{#show:{{PAGENAME}}| ?propertyname}} }}
(silent) or
{{ #vardefineecho: some_variable_name | {{#show:{{PAGENAME}}| ?propertyname}} }} (with output)</nowiki>
 
Further down in the page you can write
 
<nowiki>{{ #var: some_variable_name }}</nowiki>
 
=== Specific searches ===
 
  <nowiki>
  <inputbox>
  type=search
  width=30
  namespaces=Help**,Wikipedia**,Template**
  searchbuttonlabel=Search help pages
  bgcolor=#cee0f2
  break=no
  </inputbox>
  </nowiki>
 
(requires the Input Box extension)
 
=== Profiling mediawiki ===
 
http://www.mediawiki.org/wiki/How_to_debug#Profiling
 
=== Mediawiki performance tuning ===
 
http://www.mediawiki.org/wiki/Manual:Performance_tuning
 
* APC can be used with SMW without problems
 
== SMW tricks ==
 
<nowiki>[[Went past deadline::{{#expr:{{{End date|}}}>{{{Deadline|}}} }}]]</nowiki>
 
=== Hiding set data ===
 
  <nowiki>[[propertyA::{{{propertyA|}}}|]]</nowiki>
 
By adding the | after the enclosing }}}, the property value will not show.
 
For multi value properties:
 
  <nowiki>{{#arraymap:{{{Eating disorders behaviors|}}}|,|x|[[Eating disorders behaviors::x|]]}}</nowiki>
 
== Misc ==
 
=== Enable links in property values ===
 
$smwgLinksInValues = true;
 
=== Must add namespaces to config ===
 
Otherwise they won't have semantic properties.
 
$smwgNamespacesWithSemanticLinks array
 
== Media ==
 
Neat talk on MW, with refs to SMW: http://www.youtube.com/watch?v=Ukytqe9pwDM
 
[[Category:SemWeb]]

Revision as of 22:49, 25 September 2009

Some tips and tricks for using Semantic Mediawiki from SMW mailing list, various web sites, etc.

Other tip sources

http://smwforum.ontoprise.com/smwforum/images/a/ad/Manual_SMW.pdf

http://smw.referata.com/wiki/Special:BrowseData/Tips

http://smwforum.ontoprise.com/smwforum/index.php/Example:All_libraries

http://help.wikia.com/wiki/Help:Semantic_MediaWiki/Tips_and_tricks

http://semantic-mediawiki.org/wiki/Image:SMW_quick_reference.pdf

Data design

http://www.mediawiki.org/wiki/Extension:Semantic_Forms#Data_design_issues

- Create a top category for Semantic Classes. I called mine 'Categories'. It holds only categories used to define a 'Is-a' relationship. Doing so has at least two benefits : 1- You can do a query on your core content by restricting it to the 'Categories' level. 2- You can define other categories outside of that structure for whatever your system needs.

http://smwforum.ontoprise.com/smwforum/index.php/Example:How_to_realize_a_range_constraint_for_a_property

Redirects can be used to create property synonyms.

Discussion

Categories can be hierarchical; properties can't (yet).

When to use categories vs properties?

MW tricks

If you want to clear out old pages you can delete them and use deleteArchivedRevisions.php to erase the deleted revisions from the database.

Variables

You can make use of the VariablesExtension [1] and store the query (or its result? I'd like to know which one, but in the end it doesn't really matter) in a variable, which is helpful when you need the same query multiple times within a page. It looks like this:

{{ #vardefine: some_variable_name | {{#show:{{PAGENAME}}| ?propertyname}} }}
(silent) or
 {{ #vardefineecho: some_variable_name | {{#show:{{PAGENAME}}| ?propertyname}} }} (with output)

Further down in the page you can write

{{ #var: some_variable_name }}

Specific searches

 
  <inputbox>
  type=search
  width=30
  namespaces=Help**,Wikipedia**,Template** 
  searchbuttonlabel=Search help pages
  bgcolor=#cee0f2
  break=no
  </inputbox>
  

(requires the Input Box extension)

Profiling mediawiki

http://www.mediawiki.org/wiki/How_to_debug#Profiling

Mediawiki performance tuning

http://www.mediawiki.org/wiki/Manual:Performance_tuning

  • APC can be used with SMW without problems

SMW tricks

[[Went past deadline::{{#expr:{{{End date|}}}>{{{Deadline|}}} }}]]

Hiding set data

 [[propertyA::{{{propertyA|}}}|]]

By adding the | after the enclosing }}}, the property value will not show.

For multi value properties:

 {{#arraymap:{{{Eating disorders behaviors|}}}|,|x|[[Eating disorders behaviors::x|]]}}

Misc

Enable links in property values

$smwgLinksInValues = true;

Must add namespaces to config

Otherwise they won't have semantic properties.

$smwgNamespacesWithSemanticLinks array

Media

Neat talk on MW, with refs to SMW: http://www.youtube.com/watch?v=Ukytqe9pwDM