Version 38 (modified by falkb, 4 years ago) (diff)

tried to make it more clear that one must map milestones and versions to a given project



Lets you easily manage multiple user projects with one Trac instance or, respectively, one Trac database (.db file).

  • This is not a meta project in front of several other Trac projects, it just implements the idea of wiki:TracMultipleProjects/SingleEnvironment.
  • Milestones and versions are assigned to their projects, and both are displayed on the roadmap. There are several possibilities to filter by projects on that page, and also the timeline.
  • Components can be assigned to all or only certain projects.
  • 'New Ticket' will just offer the associated milestones, versions and components of the chosen project. This requires a new custom-ticket field 'project'.

Still an experimental version, though actually already running stable in a real production environment; feedback much appreciated.

Note: The Multiple Project feature in the sense of having a meta Trac project on top of several Trac projects is discussed in T:#130 and scheduled for Trac topic-multiproject which is eventually part of Trac next-dev-1.1.x.


in testing state:

roadmap page filter for certain projects
new ticket page needs support for project selection
timeline page needs support for project filtering (for tickets)
version selection depending on projects
version as date on roadmap
project-related roadmap filtering/grouping: project group boxes on|off
project-related roadmap filtering/grouping: only milestones vs. only versions
project-related timeline page filtering of wiki changes
user-defined field used to define the "project" (e.g. by using component)
support permission handling
show project description as project box header on roadmap page
Localization / translation support (L10N)
check 1.0 compatibility
improve project selection widget
Per-project ticket.default_* settings

work in progress: No results

still just an idea:

project-related timeline page filtering of wiki changes
user-defined field used to define the "project" (e.g. by using component)
Localization / translation support (L10N)
improve project selection widget
Per-project ticket.default_* settings

Technical thoughts

This plugin adds a new ressource 'project' implemented by database table:

  1. smp_project: a list of all defined projects

Actually, most database tables of Trac core related to ressources would need a new column 'project_id'. This way tickets, components, milestones, versions or even wikis could attach to certain projects. Since a plugin just adds stuff but cannot change the core structure, it implements the new dimension 'project' not by adding a new column to each ressource table but rather by adding several mapping tables smp_[ressource]_project, each one mapping a certain ressource to projects:

  1. smp_milestone_project: the association of milestones to projects
  2. smp_version_project: the association of versions to projects
  3. smp_component_project: the association of components to projects


Admin Interface:

project admin interface

Add project summary and description. This is displayed on the roadmap page then:

write project summary and description

Associate a milestone in a project:

  • From the "Roadmap" Page, find the desired milestone/version and click it.
  • Scroll to bottom of page and "Edit" the page. Select the project from the given combobox.


  • Mapping milestones and versions to a project is not supported via main menu item "Admin" -> "Ticket System" -> "Milestones" / "Versions".
  • If you forget to map milestones and versions to a new project, and after you have selected a project from its combobox, the "New Ticket" form cannot not offer any in the comboboxes of milestone and version.

Group milestones and versions on the roadmap by project, show project summary and description in the header of the project box, and display only projects chosen in the filter box:

display only tickets in the timeline of projects chosen in the filter box (adapted from TimelineComponentFilterPlugin):

Bugs/Feature Requests

Existing bugs and feature requests for SimpleMultiProjectPlugin are here.

If you have any issues, create a new ticket.


Download the zipped source from [download:simplemultiprojectplugin here].


You can check out SimpleMultiProjectPlugin from here using Subversion, or browse the source with Trac.


  1. Add a custom ticket field 'project' in your trac.ini to give tickets the information to which project they belong. Milestones selection depends on that as well.
    project = text
    project.label = Project
    project.value =
  2. Generate the plugin .egg file from sources
    python bdist_egg
  3. Copy the plugin to Trac, e.g.
    cp dist/SimpleMultiProject-0.0.1-py2.6.egg /instance_trac/plugins/
  4. Restart Apache. After installation of this plugin Trac needs a database upgrade!
    trac-admin /instance_trac/ upgrade
  5. Give permissions to certain users. Available permissions are:
    • PROJECT_SETTINGS_VIEW - you can see the list of projects with their description and their component mapping on the Admin panel
    • PROJECT_ADMIN - full access, you can also create and delete projects, and map to milestones, versions and components

Recent Changes

15523 by Cinc-th on 2016-04-30 22:18:21
SimpleMultiProjectPlugin: bumped version to V0.5.2dev.
15522 by Cinc-th on 2016-04-30 22:12:17
Release V0.5.1.

The following new features are available:

  • #12367:
    • associate projects and components using the components panel of Trac
  • #12702:
    • new plugin to add a column to the milestone table with version information if ExtendedVersionPlugin is installed and enabled
  • #12703:
    • allow hiding of completed milestones on milestone admin page
    • allow filtering of milestones by project on milestone admin page
  • #12704:
    • allow hiding of completed versions on version admin page
    • allow filtering of versions by project on version admin page

The following bugs were fixed:

  • #12568
    • UnicodeError: source returned bytes, but no encoding specified when using Genshi 0.7
  • #12628
    • IndexError: list index out of range
  • #12761

Some minor fixes not tracked by tickets were applied.

See log:simplemultiprojectplugin@15018:15521 for full changelog since V0.5.0.

Closes #12765

15521 by Cinc-th on 2016-04-30 21:58:37
SimpleMultiProjectPlugin: prepare release V0.5.1.


Author: crossroad, falkb, thomasd
Maintainer: crossroad

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