88 lines
3.2 KiB
Markdown
88 lines
3.2 KiB
Markdown
[[!meta robots="noindex, follow"]]
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[[!if test="enabled(template)"
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then="This wiki has templates **enabled**."
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else="This wiki has templates **disabled**."
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]]
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Templates are files that can be filled out and inserted into pages in the
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wiki.
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[[!if test="enabled(template) and enabled(inline)" then="""
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These templates are available for inclusion onto other pages in this
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wiki:
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[[!inline pages="templates/* and !*/discussion" feeds=no archive=yes
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sort=title template=titlepage]]
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"""]]
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## Using a template
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Using a template works like this:
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\[[!template id=note text="""Here is the text to insert into my note."""]]
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This fills out the [[note]] template, filling in the `text` field with
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the specified value, and inserts the result into the page.
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Generally, a value can include any markup that would be allowed in the wiki
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page outside the template. Triple-quoting the value even allows quotes to
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be included in it. Combined with multi-line quoted values, this allows for
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large chunks of marked up text to be embedded into a template:
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\[[!template id=foo name="Sally" color="green" age=8 notes="""
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* \[[Charley]]'s sister.
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* "I want to be an astronaut when I grow up."
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* Really 8 and a half.
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"""]]
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## Creating a template
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To create a template, simply add a template directive to a page, and the
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page will provide a link that can be used to create the template. The template
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is a regular wiki page, located in the `templates/` subdirectory inside
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the source directory of the wiki.
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The template uses the syntax used by the [[!cpan HTML::Template]] perl
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module, which allows for some fairly complex things to be done. Consult its
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documentation for the full syntax, but all you really need to know are a
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few things:
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* Each parameter you pass to the template directive will generate a
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template variable. There are also some pre-defined variables like PAGE
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and BASENAME.
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* To insert the value of a variable, use `<TMPL_VAR variable>`. Wiki markup
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in the value will first be converted to html.
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* To insert the raw value of a variable, with wiki markup not yet converted
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to html, use `<TMPL_VAR raw_variable>`.
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* To make a block of text conditional on a variable being set use
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`<TMPL_IF NAME="variable">text</TMPL_IF>`.
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* To use one block of text if a variable is set and a second if it's not,
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use `<TMPL_IF NAME="variable">text<TMPL_ELSE>other text</TMPL_IF>`
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Here's a sample template:
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<span class="infobox">
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Name: \[[<TMPL_VAR raw_name>]]<br />
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Age: <TMPL_VAR age><br />
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<TMPL_IF NAME="color">
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Favorite color: <TMPL_VAR color><br />
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<TMPL_ELSE>
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No favorite color.<br />
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</TMPL_IF>
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<TMPL_IF NAME="notes">
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<hr />
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<TMPL_VAR notes>
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</TMPL_IF>
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</span>
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The filled out template will be formatted the same as the rest of the page
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that contains it, so you can include WikiLinks and all other forms of wiki
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markup in the template. Note though that such WikiLinks will not show up as
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backlinks to the page that uses the template.
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Note the use of "raw_name" inside the [[ikiwiki/WikiLink]] generator. This
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ensures that if the name contains something that might be mistaken for wiki
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markup, it's not converted to html before being processed as a
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[[ikiwiki/WikiLink]].
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