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PmWiki

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PageLists

authors, admins (intermediate)

PmWiki comes with two directives for generating lists of pages -- (:pagelist:) and (:searchresults:). Both directives are basically the same and each accepts the parameters documented below. The primary difference between the two is that searchresults generates the "Results of search for ..." and "### pages found out of ### searched" messages around the results.

The (:searchbox:) directive generates a search form (input text box) to submit search queries. The markup generally accepts the same parameters as (:pagelist:), which makes it possible to restrict, order and format searchresults in the same ways that are described below for a (:pagelist:). For more information about the (:searchbox:) directive, and the ways in which it differs from a (:pagelist:), skip to the section below.

Basic syntax

  • (:pagelist:)
without any arguments shows a bulleted list of all pages, as links, ordered alphabetically and in groups.
shows a pagelist according to the parameters supplied. Parameters are optional.

Parameters

Any argument supplied within (:pagelist:) that isn't in the form 'key=value' is treated as text that either must (or must not) exist in the page text.

The minus sign (-) can be used to indicate things that should be excluded. Thus

(:pagelist trail=PmWiki.DocumentationIndex list=normal apple -pie:)

lists all "normal" pages listed in the Documentation Index trail that contain the word "apple" but not "pie".

With page text variables

You can also use page text variables as a key to list pages according to the existence of a page text variable. Eg :

(:pagelist $:pagetextvar=avalue:)

lists pages having $:pagetextvar set to avalue.
Minus sign (-), wildcards (?*) and a comma separated list of values also works when specifying a selection based on pagetextvariables. Eg :

(:pagelist $:apagetextvar=t*,-test:)

lists pages having $:apagetextvar like 't*' but not 'test'.
Examples:

PTV is set (is not empty):(:pagelist $:MyPageTextVariable=- :)
PTV is empty or not set:
 (ie, is not set to one char followed by 0 or more chars)
(:pagelist $:MyPageTextVariable=-?* :)
PTV is not VALUE:(:pagelist $:MyPageTextVariable=-VALUE :)
PTV is set and not YES:(:pagelist $:MyPageTextVariable=?*,-YES :)

Be aware that if using (:pagelist $:MyPTV=$:YourPTV :) PTVs include PmWiki formatting, so you may not get the matches you expect. Currently the only way around this is to use wild cards, so if the formatting is embedded you may be out of luck.

NOTE: Pagelist does not evaluate MarkupExpressions when working with PTVs. So if your page text variables is defined using a markup expression to set the value, pagelist will see the literal values of the text of your markup expression rather than the result of your expression. (e.g., the PTV definition (:foo:{(substr abcdef 2 4)}:) will be seen by pagelist as an open-curly-brace followed by an open-paren followed by s-u-b-s-t-r, etc. rather than being seen as b-c-d-e) Any processing of the markup expression in the output of your pagelist occurs in subsequent rules (after pagelist) within the context of the current page and thus these values cannot be used for sorting or selecting pages. (source)

With page variables (PV)

Page variables can be used within pagelists in the same way as page text variables. See Page Text Variables above for more details. Simply use $var instead of $:var.

group= and name=

The "group=" and "name=" parameters limit results to pages in a specific group or with a specific name:

All pages in the Pmwiki group: (:pagelist group=PmWiki :)
All pages except those in the PmWiki or Site groups: (:pagelist group=-PmWiki,-Site :)
All RecentChanges pages (:pagelist name=RecentChanges :)
All pages except RecentChanges (:pagelist name=-RecentChanges :)

Wildcards

Name and group parameters can contain wildcard characters that display only pages matching a given pattern:

  • An asterisk (*) represents zero or more characters
  • A question mark (?) represents exactly one character

Examples:

All pages in any group beginning with "PmWiki" (:pagelist group=PmWiki* :)
All pages in any group beginning with "PmWiki", except for Chinese (:pagelist group=PmWiki*,-PmWikiZh :)
All pages in the PmCal group with names starting with "2005": (:pagelist name=PmCal.2005* :)
All Cookbooks with names beginning with a A and a B letter
note the different separators used for the same result
(:pagelist group=Cookbook name=A*,B*   :)
(:pagelist group=Cookbook name="A* B*" :)
(:pagelist group=Cookbook name=[AB]*   :)
(:pagelist group=Cookbook, name=[AB]*   :)

If you want to use multiples conditions in name you need to use quotes or commas to delimit the string. For example

key="one value,another value"

trail=

The "trail=" option obtains the list of pages to be displayed from a WikiTrail:

  • Display pages in the documentation by modification time
(:pagelist trail=PmWiki.DocumentationIndex order=-time:)
  • Display five most recently changed pages
(:pagelist trail=RecentChanges count=5:)

list=

The "list=" option allows a search to include or exclude pages according to predefined patterns set by the administrator.

  • "list=normal" is predefined, and which excludes things like AllRecentChanges, RecentChanges, GroupHeader, GroupFooter, GroupAttributes, and the like from being displayed in the list results. Note that list=normal also excludes the current page.
  • "list=all" over-rides a "default" list that may be set by the wiki's administrator to exclude groups such as PmWiki or Site from regular search results.
  • Wiki administrators can define custom lists via the $SearchPatterns array (see Cookbook:SearchResults).

fmt=

The "fmt=" option determines how the resulting list should be displayed. PmWiki predefines several formats:

  • fmt=#bygroup - Display pages within groups (default format)
  • fmt=#simple - Display a simple ordered list of pages in the form Group.Name
  • fmt=#title - Display a list of pages by page title. Use "order=title" to have them sorted by title (default is to order by page name).
  • fmt=#group - Display a list of wikigroups (without listing the pages in the groups)
  • fmt=#include - Display the contents of each page in the list (note, this could take a very long time for long lists!)

These formats are defined by page list templates, which can be customized.

This format is not predefined by a page list template:

  • fmt=count - Display the number of pages in the list (note the absence of the "#"). In a trail, fmt=count counts existing and non-existing pages ; to limit count to existing pages, use : if="exists {=$FullName}" fmt=count (mailing list).

link=

The "link=" option implements "backlinks" -- i.e., it returns a list of pages with a link to the target. It's especially useful for category pages and finding related pages.

  • all pages with a link to PmWiki.DocumentationIndex
(:pagelist link=PmWiki.DocumentationIndex:)
  • all pages with links to the current page
(:pagelist link={$FullName}:)
  • all pages in the "Skins" category
(:pagelist link=Category.Skins:)

Note that the link= parameter doesn't accept multiple or negative targets and wildcard lists. For these see Cookbook:PageListMultiTargets.

Also, link= will ignore the directives (:if...:), (:include...:), (:redirect...:), (:pagelist...:), and page text variable directives, while searching for links in a page. That means links in included pages will not be found, and links inside non-displayed conditional markup will be found. See PageTextVariables for ways to hide a link on a page while still allowing link= to find it.

count=

The "count=" option provides the ability to

  • limit the pagelist to a specific number of pages
  • subsets of a list
  • return items from the end of a list, subsets of a list
  • display pages in reverse sequence
A simple bullet list of ten most recently modified pages

(:pagelist trail=Site.AllRecentChanges count=10 fmt=#simple:)

Display the first ten pages of a list

count=10 # display the first ten pages of list

Negative numbers specify pages to be displayed from the end of the list:

count=-10 # display last ten pages of list

Ranges may be specified using '..', thus:
count=1..10       # first ten pages of list
count=5..10       # 5th through 10th pages of list
Negative numbers in ranges count from the end of the list:

count=-10..-5 # 10th from end, 9th from end, ..., 5th from end

Omitting the start or end of the range uses the start or end of the list:
count=10..        # skip first ten pages
count=..10        # 1st through 10th page of list
count=-10..       # last ten pages of list
count=..-10       # all but the last nine pages
Ranges can be reversed, indicating that the order of pages in the output should likewise be reversed:
count=5..10       # 5th through 10th pages of list
count=10..5       # same as 5..10 but in reverse sequence
count=-1..1       # all pages in reverse sequence
"Reverse sequence" here refers to the sequence after any sorting has taken place. Therefore the three directives to the right are equivalent:
(:pagelist order=-name count=10:)
(:pagelist order=-name count=1..10:)
(:pagelist order=name count=-1..-10:) 

wrap=

The "wrap" option has the values, none and inline.

With "wrap=inline" and "wrap=none", the output from pagelist (markup or HTML) is directly embedded in a page's markup without any surrounding <div> class=...</div> tags.

With "wrap=inline", any surrounding <ul> is continued. Without "wrap=inline", the HTML output starts a new <ul>. This is important if you want to get a second level <ul> produced by the page list since starting a new <ul> with "**" doesn't yield a second level <ul> but <dl><dd><ul>...

"wrap=inline" likely has other effects since it suppresses the call to $FPLTemplateMarkupFunction (being MarkupToHTML by default).

class=

By default, a pagelist has the 'fpltemplate' class. The 'bygroup', 'simple', 'group' and 'title' page list formats have specific class names fplbygroup, fplsimple etc. You can set any class using the class= parameter or by setting the $FPLFormatOpt array.

request=1

With (:pagelist [other parameters] request=1:) you can override most pagelist parameters, by providing request parameters in the URL. For example, (:pagelist order=name request=1:) will normally sort the list by name. But if the page's URL contains ?order=time, the list will be sorted by time. If the URL contains ?order=, the list will be unordered.

req=1

The req=1 parameter requires that search terms be posted (that is, that the user presses "search" on a search form) before the pagelist is executed. Note that (:pagelist request=1 req=1:) works mostly like (:searchresults:) without the lines "Results of search for ..." and "X pages found out of Y pages searched". Both "request=1" and "req=1" are needed.

passwd=

The "passwd" option returns only those pages that have some sort of password attribute on them.

if=

The "if" option allows a condition to be specified as part of the pagelist processing, rather than from within the page list template. Only those pages for which the condition is true are retrieved. Anything that could go within an (:if ...:) can be used as a condition. For example

  (:pagelist if="date {(ftime %GW%V {*$Name})} {=$Name}" :)

returns all of the pages where the name is in the same week as that of the current page.

If any arguments within the quotes could contain a space they must be quoted:

  (:pagelist if="date 2009-01-01..2009-12-31 '{=$:Mydate}'" :)

order=

The "order=" option allows the pages in the list to be sorted according to different criteria. Use a minus sign to indicate a reverse sort. Multiple sorting criteria can be specified using a comma, and you can create your own custom pagelist sort order:

  • order=name - alphabetically by name (default order)
  • order=$Name - alphabetically by name across groups
  • order=title - alphabetically by title rather than names
  • order=time - most recently changed pages last
  • order=ctime - time of page creation (see note)
  • order=group,title - by multiple criteria, in this instance sort by title within groups
  • order=random - shuffle the pages into random sequence
  • order=$:pagetextvarname - alphabetically by page text variable value
  • order=$pagevarname - alphabetically by page variable value

Also, the order= option allows custom ordering functions to be written.

  • Note: trail= preserves the order of the pages as they appear on the trail (unless you've specified order= explicitly or there is a default order in the page list template). So PmWiki's alphabetical default order does not apply when trail= is specified.
  • Note: ctime was added to pages only from pmwiki 2.1.beta15 onwards, pages created by earlier versions don't carry a ctime attribute and can't be sorted that way.

cache=0

Pagelist has the capability to cache lists which greatly speeds up processing (when $PageListCacheDir is set). Every once in a while this caching can result in undesired results. Specifying cache=0 disables caching.

Specifying variables as parameters

You can also specify variable values inline with the pagelist statement, and refer to the variables in the template using the {$$variable1} format:

(:pagelist fmt=#pagelist variable1="value" variable2="value2":)

This assumes that a site has $EnableRelativePageVars enabled, which is recommended in PmWiki 2.2.0 -- but disabled by default to help people upgrading from 2.1.x.

For example, in the template:

>>comment<<
[[#tvars]]
(:template default count=1 ParamName=Simon:)
Hi, {$$ParamName}, how are you today?
[[#tvarsend]]
>><<

(:template default count=1 ParamName=Simon:) Hi, {$$ParamName}, how are you today?

This gives:

(:pagelist fmt=#tvars ParamName="Sam":)

(:pagelist fmt=#tvars
ParamName="Sally":)

(:pagelist fmt=#tvars:)

Hi, Sam, how are you today?

Hi, Sally, how are you today?

Hi, Simon, how are you today?

See also $EnableUndefinedTemplateVars.

Examples

Include the contents of a random page from the Banners group:

(:pagelist group=Banners order=random count=1 fmt=#include list=normal:)

Display a simple list of the last ten recently changed pages:

(:pagelist trail=Site.AllRecentChanges count=10 fmt=#simple:)

Display the "top twenty" biggest cookbook pages:

(:pagelist group=Cookbook order=-size count=20 :)

The Searchbox Directive

The (:searchbox:) directive generally accepts the same parameters as (:pagelist:) and (:input text:) directives:

  • Pagelist parameters can be added to the input text of a searchbox (or to the markup, or both)
  • Input text box parameters can be added to the searchbox markup
    • An initial search string can be specified in the searchbox markup, but it must be in the form value='search string'. That search string is displayed in the input text and can be modified by when the search is run.
    • The size of the text input field can be specified with the size parameter, where "size=40" would specify the current default value.
      • Tip: If more than one searchbox appears on a page, adding a blank initial value like this value='', to the markup for each searchbox will prevent a search string for one box from populating all of the other boxes.
  • The target page for displaying searchbox results can be set with the parameter target=GroupName.PageName. The default is the current page.
  • The entire searchbox form can be overridden by defining the $SearchBoxFmt variable in one's configuration file. If $SearchBoxFmt is defined, then the parameters to (:searchbox:) are ignored, and the content of the $SearchBoxFmt variable are used instead.

The additional parameter label="Label" can be used to change the label of the associated submit button:

 (:searchbox label="Search this wiki":)

The Searchresults directive

The (:searchresults:) directive generally accepts the same parameters as (:pagelist:) and (:input text:) directives.

Customizing "Results of search for..." and "3 pages found out of..."

To change the text surrounding the search results, customize the following and add it to local/config.php or $FarmD/local/farmconfig.php. Note that 'en' should be changed to the localized language.

XLSDV('en', array(
        'SearchFor' => 'Results of search for <em>$Needle</em>:',
        'SearchFound' => 
                '$MatchCount pages found out of $MatchSearched pages searched.'
));

Alternatively, adjust the 'SearchFor' and 'SearchFound' phrases in your translation pages.

The $SearchResultsFmt variable can also be set in local/config.php or $FarmD/local/farmconfig.php.

SDV($SearchResultsFmt, "<div class='wikisearch'>\$[SearchFor]
  <div class='vspace'></div>\$MatchList
  <div class='vspace'></div>\$[SearchFound]</div>");

See Also


This page may have a more recent version on pmwiki.org: PmWiki:PageLists, and a talk page: PmWiki:PageLists-Talk.

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Page last modified on August 22, 2014, at 03:30 PM