SMW notes: Difference between revisions

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Some tips and tricks for using Semantic Mediawiki.
{{SH_Rev|2358|20100617200949|User:David Mason|MediaWiki:Common.js}}
 
== 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
 
(from mailing list)
 
== 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).
 
 
== 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 ===
 
  <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
 
== 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
 
[[Semantics]]

Revision as of 14:35, 7 September 2009

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