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You must create valid syntax for the gallery extension if you want to use it within DPL; add debug=5 at the beginning of your statement and check what the Template Template:Infobox Country or territory dpl produces. Gero 10:34, 4 April 2008 (CEST)

1

{{#arraydefine:x|

There was a basic version of this extension some time ago. Later it was enhanced by many new features and the name was changed to DynamicPageList2. The new version was no longer downward compatible. At the same time the name of the original extension was changed to 'Intersection' (but the documentation kept talking of DynamicPageList and the tag name still was <DynamicPageList>).

Some time later another bunch of features had been added. And the name was changed back to DynamicPageList (which was thought to be 'free').

Meanwhile some new features had also been added to 'Intersection' and recently 'Intersection' requested its original name back - which caused a real lot of confusion regarding the naming.

Currently (as of June 2009) the status is as follows:

• Some wikimedia websites like wikinews use the old version. They call it 'Intersection' or 'DynamicPageList'. Its tag is <DynamicPageList> and the sources are in the mediawiki SVN under the path name 'DynamicPageList'.

• Some other websites switched to DynamicPageList2 - a version which is commonly considered to be obsolete by now. They may want to change to DPL as it is 95% downward compatible with DPL2.

• Quite a lot of websites use DPL now, i.e. the extension distributed on this website. They call it DPL or DynamicPageList. It uses the tag <dpl> and in addition offers the parser function {{#dpl: ....}}. The source is available here under Download.

There is an opinion which says that running DPL on a major public website would introduce the risk that people write queries which consume a lot of resources. And apart from there is the problem of incompatibilities between 'Intersection' and DPL.

It is time to put an end to this mess.

• A large effort was recently put into DPL to make it functionally 100% downward compatible with 'Intersection'. Missing commands were added and the semantics of some existing commands were slightly altered. For details read the chapter on DPL:Manual - Compatibility.

• A concept of functional restrictions was introduced which allows it to configure DPL with different levels of functionality. The lowest level corresponds exactly to 'Intersection' as of today.

• An advanced caching concept was introduced which makes it possible to save the result of DPL queries independent from the rest of a page. This means that this DPL cache even survives edit actions of the page containing the DPL invocation - as long as the DPL statement itself is not changed.

So, in near future there will only be one extension named DynamicPageList(DPL) which unites all previous branches.

° In the standard configuration DPL registers the <DynamicPageList> tag. This is needed to be downward compatible with extension 'Intersection'.

In the transition phase you may want to install DPL in PARALLEL to 'Intersection' for testing. DPL offers a second entry point for that purpose. Instead of require_once("DynamicPageList.php") you have to use require_once("DPLMigration.php"). DPL will then ONLY register a tag called <Intersection>

In this constellation you can change some of your existing calls of 'Intersection' (which use the <DynamicPageList> tag) to the <Intersection> tag. Once you are convinced that this produces identical results and works with equal efficiency you can change to require_once("DynamicPageList.php"). Don't forget to change the statements back to the <DynamicPageList> tag!. Of course you must also remove the require_once() for the Intersection extension. °

updaterules

define a set of rules which are executed to perform an update on selected articles (bulk update or template value editing)

Syntax:

updaterules=
    rule;
    ...
    rule;

Where rule is one of the following:

• rules for batch update of articles

   replace   pattern;
      by        replacement;
   before    pattern;
      insert    text;
   after     pattern;
      insert    text;

• rules for interactive update of articles

   template  template name;
   legend    legend article name;
   table     table format;
   editform  form parameters;
   action    form action;
   hidden    value;
   submit    submit button;
   commit    commit button;
   parameter parameter name;
      value      value;
      format     display format;
      tooltip    text;
      optional   value;
      afterparm  parameter name;

• common rules

   summary   edit summary text;
   exec      value;

The first group of rules is intended for batch updates of articles. A DPL query can select a group of articles and perform updates like inserting a piece of text at a certain position or changing text portions based on regular expressions.

The second group of rules is intended for interactive form-based editing of template values.

The third group of rules is common to both other groups and controls the update process.

The updaterules feature is intended for wiki expert users only. It is recommended that articles usind this statement are 'protected':

°

 {{#dplmatrix: name | yes | no | mode | '''indented_list''' }}

°

  {{#dplnum:text}}

°

  {{#dplreplace:text|pattern|replacement}}

°

 (1) {{#dplvar:set    |name1|value1|name2|value2|..|..}}
 (2) {{#dplvar:default|name|value}}
 (3) {{#dplvar:        name}}

° The following example would probably be used directly on an article page, but could also be included as part of a template. Parser extensions define a specific tag (in this case <DPL>) and a corresponding end tag (</DPL>). The text between these tags is handed over to the extension module just as it is.

Example syntax

<DPL>
  category = cat1|cat2
  # only pages which contain a link to myPage
  linksto  = myPage
</DPL>

Parsing procedure

Wiki markup expansion does not take place before the commands are handed over to the extension module.

• This may be useful if you want to pass wiki syntax elements to DPL2 as arguments (see the format option, for example).
• Magic words like {{PAGENAME}} or {{CURRENTDAY}} cannot be used.
• Template calls like {{{some template}}}, cannot be used as parameters.
• Parser function calls like {{#if:...|...|...}} cannot be used within arguments.
• To pass wiki syntax elements to DPL as parameters it is sometimes necessary to enforce a line break. The reason is that wiki syntax depends on line breaks. Instead, use \n or ¶ for that purpose.

Syntax features

• Every parameter assignment (=command) has to be on a separate line.
• Lines starting with a # will be ignored (comment).
• Generally the syntax looks fairly simple and intuitive as it doesn't contain special characters (except for the two embracing tags).
• Tag case doesn't matter, so it can also be written <dpl>.
• In many cases there is no need to have macro expansion within the parameter list. Note that in the example above, the pipe character (which is used to define a logical OR between the two categories) can be written as it is. The name of the page (myPage), however, must be a hardcoded constant.

°° Download the ZIP archive and extract the DynamicPageList subdirectory to a directory named yourwiki/extensions/DynamicPageList. You may ignore the other extensions but it is recommended to install at least Call and Inputbox as some DPL based applications like the DPL GUI use them. °|°}} {{#arraysort:x|random}} {{#arrayindex:x|0}}

3

• Cameroon
• Align=right

  475,442

• Align=right

  923,768

• Align=right

  637,657

• Align=right

  2,505,813

2

Country	Official Name	Capital	Dial Code
DPL Example 007 main page 1 (%COUNT%)	Template:Country dpl.default
Nigunda (%COUNT%)	Republic of Nigunda	Bamitogoo	237
Nigunda Test (%COUNT%)	Republic of Nigunda Test	Bamitogoo Test	237
Somango (%COUNT%)	Somango Island	Aaaabququque	224

Number of data = 1

No	Name	Languages	Government	Area	Population	GDP	Independence Day
1	Republic of Cameroon	French,English	Republic	183,568 sq mi	17,795,000	$43.196 billion	01/10/1961

• Template:!
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• Template:Calendar/MonthStartFri
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• Template:CalendarSingle
• Template:CalendarSingle zh-tw
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• Template:Calendar link
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• Template:Calendar month
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• Template:Car
• Template:Car.list
• Template:CatTree
• Template:CatTreeSub
• Template:CategoryGallery
• Template:Category handler
• Template:Category handler/blacklist
• Template:Category handler/numbered
• Template:Category with count
• Template:Catgraph
• Template:Catlist
• Template:Catlist/zh
• Template:Catlist/zh 2
• Template:Catlist1
• Template:Catlist zh
• Template:Citation/core
• Template:Citation/identifier
• Template:Citation/make link
• Template:Citation needed
• Template:Cite book
• Template:Cite encyclopedia
• Template:Cite journal
• Template:Cite news
• Template:Cite web
• Template:Cmdref headline
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• Template:Column-count
• Template:Column-width
• Template:Comma
• Template:Commons
• Template:Commons category
• Template:Continue with part
• Template:Convert
• Template:Convert/LoffAoffDbSoff
• Template:Convert/LoffAonSoff
• Template:Convert/kg
• Template:Convert/lb
• Template:Convert/numdisp
• Template:Convert/outsep
• Template:Convert/test/A
• Template:Coordinates
• Template:Country
• Template:Country.listByCapital
• Template:Country.phantom-004
• Template:Country Population
• Template:Country dpl
• Template:Create Event
• Template:Create Event zh-tw
• Template:CurrentUsers
• Template:DMCA
• Template:DPL/ImgUsed/LinkedFrom
• Template:DPL/ImgUsed/ResNum
• Template:DPL/Navi/3
• Template:DPLSNMakerSF
• Template:DPL Cache Warning
• Template:DPL Calendar code generater zh-tw
• Template:DPL Count
• Template:DPL Example 007 sub
• Template:DPL Example 007 sub 2
• Template:DPL Example 009 sub
• Template:DPL Example 010 sub
• Template:DPL Example 010 tpl
• Template:DPL Example 018 sub
• Template:DPL Example 102 piechart
• Template:DPL Example 103 barchart
• Template:DPL Page Name S/N Maker
• Template:DPL Page Name S/N Maker test
• Template:DPL parameter
• Template:DPL parameter.overview
• Template:DPL stable version
• Template:DT Article
• Template:DT Article Edit (Form)
• Template:DT Article Edit (Intro)
• Template:DT Article Edit (Intro).de
• Template:DT Article Edit (Syntax)
• Template:DT Article Edit (Syntax).de
• Template:DT Article Header
• Template:DT Article Help (Form)
• Template:DT Article Help (Intro)
• Template:DT Article Help (Intro).de
• Template:DT Article Intro (Form)
• Template:DT Article Intro (Intro)
• Template:DT Article Intro (Intro).de
• Template:DT Article Wiki (Form)
• Template:DT Article Wiki (Intro)
• Template:DT Article Wiki (Intro).de
• Template:DT Article XML (Form)
• Template:DT Article XML (Intro)
• Template:DT Article XML (Intro).de
• Template:DT Article copy
• Template:DT Article copy (Intro)
• Template:DT Article copy (Intro).de
• Template:DT Article csv (Form)
• Template:DT Article csv (Intro)
• Template:DT Article csv (Intro).de
• Template:DT Article show Refs
• Template:DT Articles list HTML
• Template:DT Articles list HTML (Form)
• Template:DT Articles list Wiki
• Template:DT Articles list Wiki (Form)
• Template:DT Articles list Wiki export.default
• Template:DT Articles list XML
• Template:DT Articles list csv
• Template:DT Articles view (Form)
• Template:DT Articles view (Intro)
• Template:DT Articles view (Intro).de
• Template:DT Category
• Template:DT Form Field
• Template:DT Form Field Link
• Template:DT Form Field Newline
• Template:DT Form Field Ref
• Template:DT Form Field Text
• Template:DT Form Header
• Template:DT Form Header.meta
• Template:DT Language
• Template:DT Link
• Template:DT Meta
• Template:DT Ref
• Template:DT Ref.report
• Template:DT Ref.report.default
• Template:DT Report create
• Template:DT Report create (Form)
• Template:DT Report create (Intro)
• Template:DT Report create (Intro).de
• Template:DT Scripts index
• Template:DT Type (Form)
• Template:DT Type create
• Template:DT Type create (Form)
• Template:DT Type create (Intro)
• Template:DT Type create (Intro).de
• Template:DT XML Field Text
• Template:DT csv
• Template:Dated maintenance category
• Template:Datetest
• Template:Datetest.dpl
• Template:DocTypes
• Template:Documentation
• Template:Documentation/docspace
• Template:Documentation/end box
• Template:Documentation/end box2
• Template:Documentation/start box
• Template:Documentation/start box2
• Template:Documentation/template page
• Template:Doi
• Template:Dpl.pfunc
• Template:Dpl.pfunc.default
• Template:Dpl.tag
• Template:Dpl.tag.default
• Template:DummyTemplate
• Template:EB1911
• Template:ECP
• Template:ECP-00055
• Template:ECP Issue
• Template:ECP number maker
• Template:Event
• Template:Event template
• Template:Event template zh-tw
• Template:Event zh-tw
• Template:Example
• Template:Export.dpl.default
• Template:ExportTransitive
• Template:ExportTransitive.img
• Template:ExportTransitive.sub
• Template:Extension DPL
• Template:Extension DPL cache
• Template:Extension DPL continue
• Template:Extension DPL scroll
• Template:FULLROOTPAGENAME
• Template:Fix
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• Template:Flickr code generater
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• Template:For page size test page 2
• Template:Freshman
• Template:Freshman.list
• Template:Friend
• Template:Game
• Template:Game.list
• Template:Goglemap.*.dpl
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• Template:Greenwood&Earnshaw2nd
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• Template:Infobox Country or territory.dpl
• Template:Infobox Country or territory.edit
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• Template:Infobox Country or territory dpl2
• Template:Infobox mineral
• Template:Infobox mineral.list 1
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• Template:Schnittstellen Übersicht Mini dpl
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%TOTALPAGES%

{{#dpl: category=African_Union_member_states¦Cities|resultsheader=%PAGES%|noresultsheader=none|mode=userformat

9

{{#dpl: category=African_Union_member_states¦Cities|resultsheader=%TOTALPAGES%|noresultsheader=none|mode=userformat

9

1 3.2.1

 good morning! 

{{PAGENAME}} DPL Invoking Example

LOL!!!
the {{PAGENAME}} is Sandbox