DokuWiki

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====== Namespace Templates ======

Dokuwiki supports scaffolding. Sometimes you might want to have every page in a certain namespace based on a common skeleton. For example, in the ''address'' namespace you could have an already prepared table, which only needs to be filled with data. This can be easily achieved with so called "namespace templates".

When a page is created, [[DokuWiki]] looks up whether a template file exists and it shows it within the editor window. The templates therefore are .txt files and should contain wiki markup.

===== Template files =====

Two kinds of template files can be used:

* ''_template.txt'', which are used in the current namespace.
  * ''%%__%%template.txt'' (two leading underscores), which work as the normal ''_template.txt'' files apart from the fact they are used in all namespaces below as well (they are inherited).

If both (inherited and normal) templates are present in a namespace, the normal one is used, when a new page is created. 
**Note:** Any changes to your template files will only take effect for new pages you create in that namespace.

One way to create the template file is to:

- use the wiki to save a page with the content that you want to use as a template into the appropriate namespace
  - use FTP or WebDAV to rename it as _template.txt

===== Syntax =====
The content of the file is just standard [[wiki:syntax|wiki markup]].

==== Replacement patterns ====
Inside of the file, you may also use some replacement patterns to make the template a little more dynamic.

===== Still editing templates via wiki=====

You can't edit the ''_template.txt'' through DokuWiki (only someone who can edit the files inside the filesystem folders (usually an administrator using FTP or WebDAV) can modify these files). There are three ways to accomplish this, though: 
  * the easiest is using the [[plugin:TemplatePagename]] plugin which let you change the default templatenames ''<nowiki>_template</nowiki>'' and ''<nowiki>__template</nowiki>'' into another name. E.g. ''c_template'' and ''i_template''. These files are considered normal editable wikipages because they don't start with an underscore.
  * or by setting up through symbolic links

==== Editable templates through symbolic links ====
//**NOTE: This section contains instructions for use on a Linux server and will not work on a Windows system.**//

This way, you can store your templates in a special namespace, and make symlinks for DokuWiki to find them. You can also choose to make a specific template non-editable by removing its particular symlink.

- Create a namespace called "templates", or something similar.
  - In this namespace, create a page for each [[:namespace_templates | Namespace Template]] that you wish to be editable.
  - Follow the instructions given above, but make _template.txt a hard link ((soft links seem not to work, but see the note about FollowSymLinks below)) to the correct page under your templates namespace.  You now have a template that can be modified easily via the wiki interface.

Another way is to create symlinks in the folder itself. Thus you create a ''template.txt'' which is a symbolic link to the ''_template.txt'', in it's own namespace.

cd /var/www/html/dokuwiki/data/pages/namespace/something
  ln -s _template.txt template.txt
  
For these softlinks to work, you might need the FollowSymLinks option set for this directory in your webserver's configuration.

//**NOTE: This section contains instructions for use on a Windows server and will not work on a Linux system.**//

Open up command prompt (cmd.exe) on the server, and browse to the location you with there to be a template. Use the MKLINK command to create a symbolic link.

cd c:\inetpub\wiki\data\pages\namespace\something
  mklink template.txt _template.txt

===== Plugins =====

Additional template features are implemented by plugins.

* [[plugin:TemplatePagename]] Plugin can change the names of ''_template'' and ''__template'' in your choice via configuration manager. Has as defaults respectively ''c_template'' and ''i_template''. This plugin will let you choose normal wiki pages as template so that they are editable via the wiki interface.

* [[plugin:TemplateByName]] Plugin extends available templates with
    * ''~yourpagename.txt'' for the page named ''yourpagename'' in the current namespace 
    * ''~yournamespace.txt'' for all pages in the subnamespace named ''yournamespace''
    * and variants for deeper namespaces too and some other templates e.g. for ''start'' pages.
All these plugins are only editable via the file system.

* [[plugin:NewPageTemplate]] Plugin adds a URL parameter that defines which existing page from the wiki is loaded as the template. Every page allowed by ACL is available.

* [[plugin:Snippets]] Plugin adds a button to the editor toolbar which allows to easily insert templates while editing a page. The shown templates needs to be list on one page, default ''snippets''.

* [[plugin:Headerfooter]] Plugin adds header text or footer text to pages only when they are displayed.

==== Troubleshooting ====

Problem: An unexpected error occurs "no timestamp" when server (Linux Ubuntu) cannot write the directory <code>/dokuwiki/data/pages/namespace</code>. This might happen, when the namespace directory is created by the admin as <code><root></code> in order to put the namespace template in <code>/dokuwiki/data/pages/namespace/__template.txt</code>, before creating the first page.

Solution: Create a dummy page, like so: <code>yourserver/doku.php?id=namespace:dummy&do=edit</code>. This allows DokuWiki to create the namespace directory under own control and assures full write permissions for DokuWiki on the directory.

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