Attached herewith is a screenshot with the model files:
If you look at the relationship between BusinessStatus and Business models, you will see that it is displayed as a problem. That is: Redmine cannot infer the relationship from model code, but it is correct as shown below:
class Business < ActiveRecord::Base
has_many :comments, :as => :commentable, rder => "created_at DESC"
class BusinessStatus < ActiveRecord::Base
validates_presence_of :name, :message => "^You must specify a business status name."
If you look at the screenshot, you will see that I have that issue all over the place, i.e., it shows up in the relationship between business and (vehicles and buildings) too. Is there something I am missing or is it Redmine? I am attaching the model code for Business and BusinessStatus so that you can look at it in detail.