Difference between revisions of "Sandbox"

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Revision as of 20:49, 18 August 2009

feel free to play around

Playground

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|

follow the link in the headline .. ° 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. °

loop detection
The output of a query will never contain the page which contains the query.
This prevents loops, but in some very rare cases it might not be what you expect.
This is a documented feature; use skipthispage = no to include the page which contains the query. Gero 12:43, 4 December 2009 (UTC)
TOC generation
When using mode=category DPL will switch off TOC generation.
Place a manual TOC pragma in your article if you want to get a table of contents
SECTION editing
When using mode=category DPL will switch off section editing generation.
Place a manual EDITSECTION pragma in your article if you want to get a table of contents

°° The code of this extenstion uses some MySQL-specific functions which don't exist in PostgreSQL. In order to avoid patching each new version of DyanmicPageList, I suggest to run the following script on your postgres Database (from the postgres account). This simply emulates the MySQL functions. 

create schema mysql;

grant usage on schema mysql to public;

alter user wikiuser set search_path to mediawiki, public, mysql;

create or replace function mysql.concat(text, text) returns text
as $function$
  begin
    return $1 || $2;
  end;
$function$ language plpgsql immutable strict;

create or replace function mysql.if(boolean, text, text) returns text
as $function$
  begin
    if $1 then
      return $2;
    else
      return $3;
    end if;
  end;
$function$ language plpgsql immutable strict;

create or replace function mysql.ifnull(text, text) returns text
as $function$
    select coalesce($1, $2) as result
$function$ language 'sql';

° 

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

° 

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

° 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.

° 

 {{#dplchapter: text | heading | limit | page | linktext }}

° 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

%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!
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