If authorization is about who has permission to be allowed to do what you want to do, then Roles are common patterns of authorization across users - reducing the administrative overhead.
Some bugs can only be seen for users with specific roles. You will need to change the role to reproduce a problem.
A new user starts without any roles, and there is no administrative way of adding roles to users yet. To assign a user a role you will have to run commands at the console.
- open the Rails console
- after verifying the user
test_user_nameis missing the
trustedrole we proceed to add it and then verify the role has been added:
> user = User.find_by(username: "test_user_name")> user.has_role?(:trusted)=> false > user.add_role(:trusted)=> #<Role:...name: "trusted".. > > user.has_role?(:trusted)=> true
Another common requirement is changing to the administrative role, and an example of this is found [on the admin page].
A more complex query to list all the users and their roles:
User.joins(:roles).order(:id).group(:id).pluck(:id, :username, Arel.sql("array_agg(roles.name)"))
- Rolify README.md
- [What is the purpose of Rolify?]