Wiki Navigation

Wiki Macros

Trac macros are plugins to extend the Trac engine with custom 'functions' written in Python. A macro inserts dynamic HTML data in any context supporting WikiFormatting.

Another kind of macros are WikiProcessors. They typically deal with alternate markup formats and representation of larger blocks of information (like source code highlighting).

Using Macros

Macro calls are enclosed in two square brackets. Like Python functions, macros can also have arguments, a comma separated list within parentheses.

Examples

 [[Timestamp]]

Display:

Fri Nov 22 01:32:27 2024

 [[HelloWorld(Testing)]]

Display:

Hello World, args = Testing

Available Macros

Note that the following list will only contain the macro documentation if you've not enabled -OO optimizations, or not set the PythonOptimize option for mod_python.

[[InterTrac]]

Provide a list of known InterTrac prefixes.

[[TitleIndex]]

Inserts an alphabetic list of all wiki pages into the output.

Accepts a prefix string as parameter: if provided, only pages with names that start with the prefix are included in the resulting list. If this parameter is omitted, all pages are listed.

[[RecentChanges]]

Lists all pages that have recently been modified, grouping them by the day they were last modified.

This macro accepts two parameters. The first is a prefix string: if provided, only pages with names that start with the prefix are included in the resulting list. If this parameter is omitted, all pages are listed.

The second parameter is a number for limiting the number of pages returned. For example, specifying a limit of 5 will result in only the five most recently changed pages to be included in the list.

[[PageOutline]]

Displays a structural outline of the current wiki page, each item in the outline being a link to the corresponding heading.

This macro accepts three optional parameters:

The first is a number or range that allows configuring the minimum and maximum level of headings that should be included in the outline. For example, specifying "1" here will result in only the top-level headings being included in the outline. Specifying "2-3" will make the outline include all headings of level 2 and 3, as a nested list. The default is to include all heading levels.
The second parameter can be used to specify a custom title (the default is no title).
The third parameter selects the style of the outline. This can be either inline or pullout (the latter being the default). The inline style renders the outline as normal part of the content, while pullout causes the outline to be rendered in a box that is by default floated to the right side of the other content.

[[Image]]

Embed an image in wiki-formatted text.

The first argument is the file specification. The file specification may reference attachments or files in three ways:

module:id:file, where module can be either wiki or ticket, to refer to the attachment named file of the specified wiki page or ticket.
id:file: same as above, but id is either a ticket shorthand or a Wiki page name.
file to refer to a local attachment named 'file'. This only works from within that wiki page or a ticket.

Also, the file specification may refer to repository files, using the source:file syntax (source:file@rev works also).

The remaining arguments are optional and allow configuring the attributes and style of the rendered <img> element:

digits and unit are interpreted as the size (ex. 120, 25%) for the image
right, left, top or bottom are interpreted as the alignment for the image
nolink means without link to image source.
key=value style are interpreted as HTML attributes or CSS style

indications for the image. Valid keys are:

align, border, width, height, alt, title, longdesc, class, id and usemap
border can only be a number

Examples:

    [[Image(photo.jpg)]]                           # simplest
    [[Image(photo.jpg, 120px)]]                    # with size
    [[Image(photo.jpg, right)]]                    # aligned by keyword
    [[Image(photo.jpg, nolink)]]                   # without link to source
    [[Image(photo.jpg, align=right)]]              # aligned by attribute

You can use image from other page, other ticket or other module.

    [[Image(OtherPage:foo.bmp)]]    # if current module is wiki
    [[Image(base/sub:bar.bmp)]]     # from hierarchical wiki page
    [[Image(#3:baz.bmp)]]           # if in a ticket, point to #3
    [[Image(ticket:36:boo.jpg)]]
    [[Image(source:/images/bee.jpg)]] # straight from the repository!
    [[Image(htdocs:foo/bar.png)]]   # image file in project htdocs dir.

Adapted from the Image.py macro created by Shun-ichi Goto <gotoh@taiyo.co.jp>

[[MacroList]]

Displays a list of all installed Wiki macros, including documentation if available.

Optionally, the name of a specific macro can be provided as an argument. In that case, only the documentation for that macro will be rendered.

Note that this macro will not be able to display the documentation of macros if the PythonOptimize option is enabled for mod_python!

[[TracIni]]

Produce documentation for Trac configuration file.

Typically, this will be used in the TracIni page. Optional arguments are a configuration section filter, and a configuration option name filter: only the configuration options whose section and name start with the filters are output.

[[HelloWorld]]

Example macro.

[[Timestamp]]

Inserts the current time (in seconds) into the wiki page.

[[TracGuideToc]]

This macro shows a quick and dirty way to make a table-of-contents for a set of wiki pages.

[[TicketQuery]]

Macro that lists tickets that match certain criteria.

This macro accepts two parameters, the second of which is optional.

The first parameter is the query itself, and uses the same syntax as for query: wiki links (but not the variant syntax starting with "?").

The second parameter determines how the list of tickets is presented: the default presentation is to list the ticket ID next to the summary, with each ticket on a separate line. If the second parameter is given, it must be one of:

compact -- the tickets are presented as a comma-separated list of ticket IDs.
count -- only the count of matching tickets is displayed

[[Screenshot]]

Allows embed screenshot image in wiki page. First mandatory argument is ID of the screenshot. Number or image attributes can be specified next:

align - Specifies image alignment in wiki page. Possible values are: left, right and center.
alt - Alternative description of image.
border - Sets image border of specified width in pixels.
class - Class of image for CSS styling.
description - Brief description under the image. Accepts several variables (see bellow).
format - Format of returned image or screenshot behind link.
height - Height of image. Set to 0 if you want original image height.
id - ID of image for CSS styling.
longdesc - Detailed description of image.
title - Title of image.
usemap - Image map for clickable images.
width - Width of image. Set to 0 if you want original image width.

Attribute description displays several variables:

$id - ID of image.
$name - Name of image.
$author - User name who uploaded image.
$time - Time when image was uploaded.
$file - File name of image.
$description - Detailed description of image.
$width - Original width of image.
$height - Original height of image.

Example:

 [[Screenshot(2,width=400,height=300,description=The $name by $author: $description,align=left)]]

[[ScreenshotsList]]

Displays list of all available screenshots on wiki page. Accepts one argument which is template for list items fromatting. Possible variables in this template are:

$id - ID of image.
$name - Name of image.
$author - User name who uploaded image.
$time - Time when image was uploaded.
$file - File name of image.
$description - Detailed description of image.
$width - Original width of image.
$height - Original height of image.
$tags - Comma separated list of screenshot tags.
$components - Comma separated list of screenshot components.
$versions - Comma separated list of screenshot versions.

Example:

 [[ScreenshotsList($name - $description ($widthx$height))]]

[[TracNav]]

TracNav: The Navigation Bar for Trac

This macro implements a fully customizable navigation bar for the Trac wiki engine. The contents of the navigation bar is a wiki page itself and can be edited like any other wiki page through the web interface. The navigation bar supports hierarchical ordering of topics. The design of TracNav mimics the design of the TracGuideToc that was originally supplied with Trac. The drawback of TracGuideToc is that it is not customizable without editing its source code and that it does not support hierarchical ordering.

Installation

See http://projects.edgewall.com/trac/wiki/TracPlugins.

Usage

To use TracNav, create an index page for your site and call the TracNav? macro on each page, where the navigation bar should be displayed. The index page is a regular wiki page. The page with the table of contents must include an unordered list of links that should be displayed in the navigation bar.

To display the navigation bar on a page, you must call the TracNav macro on that page an pass the name of your table of contents as argument.

Additional information and a life example

Please visit: http://svn.ipd.uka.de/trac/javaparty/wiki/TracNav.

Author and License

Bernhard Haumacher (haui at haumacher.de)
Thomas Moschny (moschny at ipd.uni-karlsruhe.de)

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

[[JPNav]]

TracNav: The Navigation Bar for Trac

Installation

See http://projects.edgewall.com/trac/wiki/TracPlugins.

Usage

To display the navigation bar on a page, you must call the TracNav macro on that page an pass the name of your table of contents as argument.

Additional information and a life example

Please visit: http://svn.ipd.uka.de/trac/javaparty/wiki/TracNav.

Author and License

Bernhard Haumacher (haui at haumacher.de)
Thomas Moschny (moschny at ipd.uni-karlsruhe.de)

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

[[TOC]]

Generate a table of contents for the current page or a set of pages. If no arguments are given, a table of contents is generated for the current page, with the top-level title stripped:

    [[TOC]]

To generate a table of contents for a set of pages, simply pass them as comma separated arguments to the TOC macro, e.g. as in

[[TOC(TracGuide, TracInstall, TracUpgrade, TracIni, TracAdmin, TracBackup, TracLogging,
         TracPermissions, TracWiki, WikiFormatting, TracBrowser, TracRoadmap, TracChangeset,
         TracTickets, TracReports, TracQuery, TracTimeline, TracRss, TracNotification)]]

The following control arguments change the default behaviour of the TOC macro:

Argument	Meaning
`heading=<x>`	Override the default heading of "Table of Contents"
`noheading`	Suppress display of the heading.
`depth=<n>`	Display headings of subsequent pages to a maximum depth of <n>.
`inline`	Display TOC inline rather than as a side-bar.
`titleindex`	Only display the page name and title of each page, similar to TitleIndex.

Note that the current page must also be specified if individual wiki pages are given in the argument list.

[[WikiInclude]]

Inserts the contents of another wiki page. It expands arguments in the page in the form {{N}}.

Example:

[[WikiInclude(Foo)]]
[[WikiInclude(Foo|Argument1|Argument2..|ArgumentN)]]

[[BlogShow]]

Displays a blog based on tags

The list of tags to be shown can be specified as arguments to the macro. If no tags are specified as parameters, then the default 'blog' tag is used.

Because any wiki page can be a blog entry,it is suggested that one uses a unique tag for any page that should appear in the blog, such as the tag: 'blog' (the default).

The following options can be specified:

union - Specify whether the join for the tags listed should be a union or intersection(default).
num_posts - Number of posts to display.
year - Year for which to show posts.
month - Month for which to show posts.
day - Day of the month for which to show posts.
delta - How many days of posts should be shown.
mark_update - Specify whether to show "Updated on" for posts that have been updated.
format - Show as RSS feed ('rss') or HTML (else).
post_size - Number of bytes to show before truncating the post and providing a (...) link. Posts are truncated at the next line break after the byte count is reached. poster - Show only entries made by a single named user.

If specifying dates with year, month, and/or day, the current value is specified if missing. For example, if day is specified but year and month are not, then year will be filled in with the current year and month will be filled with the current month. If only year and month are specified, then that indicates the whole month is desired.

The num_posts options is bounded by the date options if combined. For example, if num_posts=5 and month=4 is specified, it will show up to 5 posts from the month of April. If only 3 posts exist, then only 3 are shown. If a date option is not specified, then it will show the last num_posts posts.

The poster option is bounded by all of the above options and also limits the calendar to display tallies respective of the named user.

Examples

[[BlogShow()]]
[[BlogShow(blog,pacopablo)]]
[[BlogShow(blog,pacopablo,union=True)]]
[[BlogShow(blog,pacopablo,num_posts=5)]]
[[BlogShow(blog,pacopablo,month=4,num_posts=5)]]
[[BlogShow(blog,pacopablo,year=2006,month=4)]]
[[BlogShow(blog,pacopablo,year=2006,month=4,day=12)]]
[[BlogShow(blog,pacopablo,delta=5)]]
[[BlogShow(blog,pacopablo,delta=5,mark_updated=False)]]
[[BlogShow(blog,poster=UserName)]]

[[SplitPost]]

Displays a blog based on tags

The list of tags to be shown can be specified as arguments to the macro. If no tags are specified as parameters, then the default 'blog' tag is used.

Because any wiki page can be a blog entry,it is suggested that one uses a unique tag for any page that should appear in the blog, such as the tag: 'blog' (the default).

The following options can be specified:

The poster option is bounded by all of the above options and also limits the calendar to display tallies respective of the named user.

Examples

[[BlogShow()]]
[[BlogShow(blog,pacopablo)]]
[[BlogShow(blog,pacopablo,union=True)]]
[[BlogShow(blog,pacopablo,num_posts=5)]]
[[BlogShow(blog,pacopablo,month=4,num_posts=5)]]
[[BlogShow(blog,pacopablo,year=2006,month=4)]]
[[BlogShow(blog,pacopablo,year=2006,month=4,day=12)]]
[[BlogShow(blog,pacopablo,delta=5)]]
[[BlogShow(blog,pacopablo,delta=5,mark_updated=False)]]
[[BlogShow(blog,poster=UserName)]]

[[BlogPost]]

Inserts a link to create a new blog post

Accepts keyword arguments that specify default parameters. The macro will be hidden unless the user has BLOG_POSTER permissions.

tag - Tag that populates the "Tag under" field. This key may be specified as a tuple or list to pass multiple values.
blogtitle - Default blog entry title.
text - Default entry body text.
pagename - Default wiki page name.
readonly - Default readonly page status.
link - Text to display as the link.

Examples

[[BlogPost()]]
[[BlogPost(tag=(blog,pacopablo))]]
[[BlogPost(tag=blog,blogtitle="A Simple Title",text="Body Text")]]
[[BlogPost(tag=blog,pagename=blog/newpage,readonly=1)]]
[[BlogPost(tag=(blog,pacopablo),link="A New Blog Post")]]

[[Branches]]

Render a list of available branches.

[[Poll]]

Add a poll. Each argument must be separated by a semi-colon (;) or new-line (if used as a processor). The first argument is the title of the poll, which is also the identifier for each poll.

Usage: [[TicketPoll(<title>; <arg> [; <arg>] ...)]]

Where <arg> conforms to the following:

<arg> Description
query:<ticket-query> Add tickets from a query to the poll.
#<n> Add an individual ticket to the poll.
<text> A poll question.

eg.

[[ViewTopic]]

[[TracAdminHelp]]

Displays help for trac-admin commands.

Examples:

[[TracAdminHelp]]               # all commands
[[TracAdminHelp(wiki)]]         # all wiki commands
[[TracAdminHelp(wiki export)]]  # the "wiki export" command
[[TracAdminHelp(upgrade)]]      # the upgrade command

[[InterWiki]]

Provide a description list for the known InterWiki prefixes.

Macros from around the world

The Trac Hacks site provides a wide collection of macros and other Trac plugins contributed by the Trac community. If you're looking for new macros, or have written one that you'd like to share with the world, please don't hesitate to visit that site.

Developing Custom Macros

Macros, like Trac itself, are written in the Python programming language. They are very simple modules, identified by the filename and should contain a single execute() function. Trac will display the returned data inserted into the HTML representation of the Wiki page where the macro is called.

It's easiest to learn from an example:

# MyMacro.py -- The world's simplest macro

def execute(hdf, args, env):
    return "Hello World called with args: %s" % args

You can also use the environment (env) object, for example to access configuration data and the database, for example:

def execute(hdf, txt, env):
    return env.config.get('trac', 'repository_dir')

Note that since version 0.9, wiki macros can also be written as TracPlugins. This gives them some capabilities that “classic” macros do not have, such as being able to directly access the HTTP request.

For more information about developing macros, see the development resources on the main project site.

See also: WikiProcessors, WikiFormatting, TracGuide

Advanced Data Extraction Infrastructure

Wiki Navigation

Wiki Macros

Using Macros

Examples

Available Macros

TracNav: The Navigation Bar for Trac

Installation

Usage

Additional information and a life example

Author and License

TracNav: The Navigation Bar for Trac

Installation

Usage

Additional information and a life example

Author and License

Examples

Examples

Examples

Macros from around the world

Developing Custom Macros

Download in other formats:

<arg>	Description
`query:<ticket-query>`	Add tickets from a query to the poll.
`#<n>`	Add an individual ticket to the poll.
`<text>`	A poll question.