Hello I have the three database models: "seller", "client" and "account". A seller may have many clients and many accounts, but I would like to add the constraint that given a seller and a client, only one account may exist between them.
Is there a way to express this contraint using ActiveRecord relations? Thanks in advance, Andre -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.

