Using Plugins in Your App

peryt

we usually use five or six plugins in each app.
--David Heinemeier Hansson at Canada on Rails
Plugins are self-contained libraries made specially for Rails. They are a great
way to reuse someone else’s code or to package your own code for reuse.
Unlike gems, plugins are installed directly into a specific Rails app. This
makes it easier to deploy them remotely along with an entire application.
I mentioned
previously

that the following places are good sources for plugins:

• 
  Technoweenie
  
  
• 
  Core Rails
  
  
• 
  Rails Wiki
  
  
• 
  Topfunky
  
  
• 
  Plugin Directory
  

Discover and Install（you should run the script in the project directory!）
Once you’ve found a plugin that does what you want, install it into your
existing Rails app like this:
# Install a plugin from a known source
./script/plugin install calendar_helper
#
Similar on Windows
ruby script/plugin install calendar_helper
# Install from a specific url
./script/plugin install http://topfunky.net/svn/plugins/calendar_helper
# Install by linking it directly
within Subversion
./script/plugin install -x calendar_helper
If the script doesn’t automatically find the plugin, run the discovery action
which looks for all the sources on the Rails wiki:
./script/plugin discover
To uninstall a plugin, you can:

• Delete the specific folder for the plugin
  
• Remove it with svn delete
  
• Unlink it with svn propdel svn:externals vendor/plugins/

               
               
               

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