Difference between revisions of "DPL Example 018"

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(New page: {{subst::DPL Example 017}})
 
(Replacing page with '{{subst::DPL Example 010}}')
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== Create a permuted index of template calls ==
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__NOTOC__
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{{Example|Tree of relations, templates and categories for a given page}}
  
Sometimes you want to know, which pages use a certain template with a special value.
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We show references to other pages and the use of templates.
If you know the value you are interested in, you can use <tt>includematch</tt>.
 
  
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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{{#tree:root=[[DPL Example 010 page 1]] ..|
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{{DPL Example 010 sub|DPL Example 010 page 1|*}}
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}}
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</nowiki></pre>
  
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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----
{{#dpl:
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The above DPL command produces the following output:
|uses=Template:Index
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----
|include={Index}.dpl1
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{{#tree:root=[[DPL Example 010 page 1]] ..|
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{{DPL Example 010 sub|DPL Example 010 page 1|*}}
 
}}
 
}}
 
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.
 
The result looks like this:
 
{{#arraydefine:inx|
 
  {{#replace:
 
    {{#dpl:
 
      |uses=Template:Index
 
      |include={Index}.dpl2
 
      |format=,,;
 
    }}
 
    |/;$/
 
    |
 
  }}
 
|;}}
 
<!-- now we have an array where each element has two parts which are separated by °;
 
    the first part is the parameter value, the second part is the name of the referring wiki page
 
    we sort the array and then print an indented list where common first elements are shown only once
 
-->{{#arraysort:inx|asce}}<!--
 
-->{{#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}}}}}}
 

Revision as of 08:02, 24 May 2009

back to list of examples

Tree of relations, templates and categories for a given page

We show references to other pages and the use of templates.

{{#tree:root=[[DPL Example 010 page 1]] ..|
{{DPL Example 010 sub|DPL Example 010 page 1|*}}
}}

The above DPL command produces the following output:


{{#tree:root=DPL Example 010 page 1 ..|

  • links to ..
  • uses template ..
  • belongs to ..

{{#replace:* DPL Example 010 cat

  • contains image ..

}}