How do I create an Agent model that can spans across Companies in a scope based multi tenancy app in Rails

Question

I've built a multi-tenancy app that has User & Report that belong to a Company as shown below, (multi tenancy app using company_id to scope everything else - Users & Reports).

company.rb

class Company < ApplicationRecord
    has_many :reports
    has_many :users
end

user.rb

class User < ApplicationRecord
    belongs_to :company
    has_many :reports
end

report.rb

class Report < ApplicationRecord
    belongs_to :user
    belongs_to :company
end

I now wish to add an Agency model (with agency_users ) that will enable the to manage multiple companies (and that companies reports). The Agent will need to be able to switching from one company two another.

How would I approach this? Agent has many Companies

class Agent < ApplicationRecord
    has_many :companies
end

I can't quite work out how the agent would switch between the company_ids in order to view the reports for the companies it is responsible (it's clients).

Answer 1

Based on the comment, here's a solution that can be helpful

class Agency < ApplicationRecord
  has_many :companies
  has_many :users
end

class Company < ApplicationRecord
    has_many :reports
    belongs_to :agency
end

class Users < ApplicationRecord
    has_many :reports
    belongs_to :agency
    enum role: [:agent]
end

Now, when the user signs in to your app, show him a dropdown of which company he's currently controlling. Store this id in a session and use it to query your data:

current_user.reports.where(company_id: session[:company_id].to_i) for example;

Same goes to creating and deleting them.

However, this is not the optimal solution (I'm not sure what your intentions are).

I would go with something more general, like user roles for each company with UserCompany having company , user and role instead of the role on the user level (maybe he's an agent at a company but admin another company; etc...). All of that varies based on what you really need to do.