Question

I have a rails project where project model has many issues.

class Project < ActiveRecord::Base
    has_many :issues
end

Now through a plugin i want to add an association in the project model, say has_many :activities

so that project model will look like

class Project < ActiveRecord::Base
    has_many :issues
    has_many :activities
end

where activity is a model of my plugin.

Can this be done using hooks? Please give some example.

Answer 1

Give this a whirl:

module ProjectExt
  def self.included base
    base.has_many :activities
  end
end

require 'project'    
Project.send(:include, ProjectExt)