Has_many through?

I’m trying to work out the best method for the following relationship.

I have a User who is assigned to a Company, however the User can be
assigned to more than 1 Company. And, the Company can have Many Users…

Any suggestions?

What you are describing is a has_and_belongs_to_many relationship, which
uses a separate table to link the 2 models:

class User << ActiveRecord::Base
has_and_belongs_to_many :company
end

class Company < ActiveRecord::Base
has_and_belongs_to_many :users
end

You will need to generate a migration:

class CreateCompaniesUsersJoinTable < ActiveRecord::Migration
def self.up
create_table :companies_users, :id => false do |t|
t.integer :company_id
t.integer :user_id
end
end

def self.down
drop_table :companies_users
end
end

More:

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