Redmine

So after a fair amount of effort (ruby/rails noob here), I finally managed to figure out duck-punching/monkey-patching. The next thing I need to do with my Redmine plugin is run some code in the controller based on whether or not a module is enabled in the project.

Currently I have the following code within ./lib/projects_controller_patch.rb:

module ProjectsControllerPatch
  def self.included(base) # :nodoc:
    base.send(:include, InstanceMethods)
    base.class_eval do
      alias_method_chain :show, :ps
    end
  end

  module InstanceMethods
    def show_with_ps
      #CODE HERE THAT NEEDS TO BE RUN DEPENDING ON IF THE MODULE IS TURNED ON
      return show_without_ps
    end
  end
end

ProjectsController.send(:include, ProjectsControllerPatch)

Would anyone be able to help me work out how to determine if a module is turned on for the current project? Would you be willing to also explain why it works?

Thank you,
Derric Atzrott

EDIT: This is for Redmine 2.x