Difference between revisions of "DPL Example 018"

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(New page: {{subst::DPL Example 017}})
 
 
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== Create a permuted index of template calls ==
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__NOTOC__
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{{Example|List of relations, templates, categories and images for a given page}}
  
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Sometimes you want to know, which pages use a certain template with a special value.
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We show all kinds of references to other wiki objects. This list could be enhanced to be used in Special:Export to download an article together with its context. Maybe it could be enhanced to create a "transitive envelope of variable depth", i.e. the procedure could be repeated for all neighbours to create a list of "leven n-neighbours".
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If you know the value you are interested in, you can use <tt>includematch</tt>.
 
  
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If you want a complete listing of all parameter values and the pages that are using them you can build a '''permuted index'''. (Note: The category system of MediaWiki is also a permuted index). If a page uses more than one value it will appear in the result more than once. If several pages use the same value they will be listed below that value.
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<pre><nowiki>
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{{DPL Example 018 sub|DPL Example 010 page 1}}
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</nowiki></pre>
  
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In our example we have created two pages which use a template called [[Template:Index|Index]] with one or more parameters:
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----
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{{#dpl:
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The above DPL command produces the following output:
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|uses=Template:Index
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----
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|include={Index}.dpl1
 
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}}
 
  
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In our example the template ''Index'' does nothing; it could, however, tell the reader, that this page belongs to a certain index group - just like mediawiki lists the categories of a page at the bottom of your wiki browser. The surrogate template we use in the DPL query constructs an [http://mediawiki.org/Extension:Array array] which is sorted and printed afterwards.
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wiki objects in distance 1 from [[DPL Example 010 page 1]] :
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The result looks like this:
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{{#arraydefine:inx|
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<tt>
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  {{#replace:
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{{DPL Example 018 sub|DPL Example 010 page 1}}
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    {{#dpl:
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</tt>
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      |uses=Template:Index
 
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      |include={Index}.dpl2
 
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      |format=,,;
 
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    }}
 
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    |/;$/
 
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    |
 
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  }}
 
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|;}}
 
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<!-- now we have an array where each element has two parts which are separated by °;
 
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    the first part is the parameter value, the second part is the name of the referring wiki page
 
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    we sort the array and then print an indented list where common first elements are shown only once
 
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-->{{#arraysort:inx|asce}}<!--
 
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-->{{#arrayprint:inx|<br/>|%%|{{#vardefine:src|{{#replace:%%|/°.*/|}}}} {{#ifeq:{{#var:src}}|{{#var:srcold}}||'''{{#var:src}}'''<br/>}}{{#replace:[[%%]]|/^(\[\[){{#var:src}}°/|&nbsp; &nbsp; &nbsp;\1}}{{#vardefine:srcold|{{#var:src}}}}}}
 

Latest revision as of 09:21, 24 May 2009

back to list of examples

List of relations, templates, categories and images for a given page

We show all kinds of references to other wiki objects. This list could be enhanced to be used in Special:Export to download an article together with its context. Maybe it could be enhanced to create a "transitive envelope of variable depth", i.e. the procedure could be repeated for all neighbours to create a list of "leven n-neighbours". 

{{DPL Example 018 sub|DPL Example 010 page 1}}

The above DPL command produces the following output:

wiki objects in distance 1 from DPL Example 010 page 1 :

DPL example page 2
DPL example page 3
Template:DPL Example 010 tpl
{{#replace:Category:DPL Example 010 cat, DPL Example 010 cat2|,|
Category:}}
File:Sudan n3.jpg

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