project-has-many-members

Let's do the other ends of those two belongs-to associations. In the Project model:

SHOW_PATCH

app/models/project.rb

@@ -8,6 +8,8 @@ class Project < ActiveRecord::Base
   end
 
   has_many :stories, :dependent => :destroy
+  has_many :memberships, :class_name => "ProjectMembership", :dependent => :destroy
+  has_many :members, :through => :memberships, :source => :user
 
   belongs_to :owner, :class_name => "User", :creator => true