Modeling 2 relationships between 2 entites

Hello, I've got the following quiet common domain model.

http://55degrees.co.uk/ewan/peopleUserGroups.pdf

As you can see a person can create 0 or many groups, a group being created by 1 person. A person belongs to 1 or many groups and a group can contain many people. A can also contain many sub groups.

A simple person class to describe these relationship would be...

class Person < ActiveRecord::Base   #relationships   has_many :usergroups   has_and_belongs_to_many :usergroups end

obviously this is wrong I can't name both usergroups 'usergroups'. How do I rename the relationship so I can refer to the two relationships. Cheers, Ewan

Hello, I've got the following quiet common domain model.

http://55degrees.co.uk/ewan/peopleUserGroups.pdf

As you can see a person can create 0 or many groups, a group being created by 1 person. A person belongs to 1 or many groups and a group can contain many people. A can also contain many sub groups.

A simple person class to describe these relationship would be...

class Person < ActiveRecord::Base #relationships has_many :usergroups has_and_belongs_to_many :usergroups end

class Person    has_many :created_groups, :class_name => 'Usergroup', :foreign_key
=> 'person_id'    has_and_belongs_to_many :usergroups end should do the trick

Fred

Thank you both for your reply and thanks for not just telling me to RTFM. Having just started using Ruby and Rails it's appreciated having people how are willing to help with the simple questions. Cheers, Ewan

http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html#M001079