Redmine

h1. Plugins

h2. Plugin list

A full list of available Redmine plugins can be found at the "Plugin Directory":/plugins.

More plugins (some in very early development), which are not listed at the "Plugin Directory":/plugins but are publicly available on "GitHub":https://github.com can be found using a "search like this":https://github.com/search?type=Repositories&language=&q=redmine&repo=&langOverride=&x=0&y=0&start_value=1.

h2. Installing a plugin

1. Copy your plugin directory into @#{RAILS_ROOT}/plugins@ (Redmine 2.x) or @#{RAILS_ROOT}/vendor/plugins@ (Redmine 1.x). If you are downloading the plugin directly from GitHub, you can do so by changing into your plugin directory and issuing a command like @git clone git://github.com/user_name/name_of_the_plugin.git@.

2. If the plugin requires a migration, run the following command in @#{RAILS_ROOT}@ to upgrade your database (make a db backup before).

2.1. For Redmine 1.x:

<pre><code class="ruby">bundle exec rake db:migrate_plugins RAILS_ENV=production</code></pre>

2.2. For Redmine 2.x:

<pre><code class="ruby">bundle exec rake redmine:plugins:migrate RAILS_ENV=production</code></pre>

3. Restart Redmine

You should now be able to see the plugin list in _Administration -> Plugins_ and configure the newly installed plugin (if the plugin requires to be configured).

h2. Uninstalling a plugin

1. If the plugin required a migration, run the following command to downgrade your database (make a db backup before):

1.1. For Redmine 1.x: 

<pre><code class="ruby">bundle exec rake db:migrate:plugin NAME=plugin_name VERSION=0 RAILS_ENV=production</code></pre>

1.2. For Redmine 2.x:

<pre><code class="ruby">bundle exec rake redmine:plugins:migrate NAME=plugin_name VERSION=0 RAILS_ENV=production</code></pre>

2. Remove your plugin from the plugins folder: @#{RAILS_ROOT}/plugins@ (Redmine 2.x) or @#{RAILS_ROOT}/vendor/plugins@ (Redmine 1.x)..

3. Restart Redmine

h2. Writing plugins

There is a step-by-step [[Plugin_Tutorial|tutorial]] about writing a plugin. Some more (detailed) information is collected and stored in the "[[Plugin_Internals|plugin internals]]" page.

More (general) developer information can be found in the [[Guide#Developer-guide|Redmine Developer Guide]].

h2. Migrating Plugins

There are changes in Plugins API or new Rails requirements which need to be considered if you want to use plugin from prior version of redmine.

In any case it's proposed to update and migrate redmine core system first without plugins and then if stable try to drop in one by one, to know where problems come from if any.

Consideration towards plugins which *overwrite views* completely because of bad coding style or there is no "hook" available shall be made in any case. Maybe you can collect and write down plugin references here which are of this type.

Let's start with..

* "Redmine_blocks":/plugins/redmine_blocks

h3. Redmine 1.3 > 1.4

* routes.rb which defines url to controller (parameter, action) mapping must be created in <plugin>/config/routes.rb

* @ARCondition@ is gone with no replacement

* @TabularFormBuilder@ is now @Redmine::Views::LabelledFormBuilder@

* defining your own context menus now requires @helper :context_menus@ in the respective controller

* of course, @returning@ is deprecated in favor of @tap@

* if you're doing anything with repos check it twice, because there can be multiple repos now per project

* @Project#visible_by@ is deprecated and replaced by @Project#visible_condition@

h3. Redmine 1.4 > 2.x

* "Writing plugins compatible with both Redmine 1.x and 2.x - some tips":/boards/3/topics/31445

h3. Writing Redmine 2.x plugins

* "Tutorial":http://www.gogolek.co.uk/blog/2012/09/writing-redmine-2-x-plugins-tutorial/