Role Hierarchy in Rolify

example.rb

# A lot of times, you might have multiple roles in your User model.
# Also, at times, you keep the administrative users and regular users (if you may) in the 
# same model. This can lead to a few issues when attempting to assign multiple roles
# to users.

# A potential use-case could be as follows:

# file: app/controllers/foo_controller.rb
magic_user = User.find_by_foo(:bar)

case magic_user.primary_role
   when :administrator
      flash[:info] = "With great power comes great responsibility."
   when :street_fighter
      flash[:info] = "Hadouken!"
   ....
end

# The concept of a primary role could allow users to have multiple
# roles while still maintaining a list of the many roles that one user
# can have.

# If desired, this can be configured by a toggle (if that's feasible).

# file: config/initializers/rolify.rb

Rolify.config do | config |
   config.allow_primary_roles = true
end