eliminated naming clash with Sorcery

app/controllers/sessions_controller.rb

@@ -26,7 +26,7 @@ class SessionsController < ApplicationController
   end
 
   def destroy
-    if current_user.external?
+    if current_user.external_user?
       clear_lti_session_data
     else
       logout

app/models/concerns/user.rb

@@ -16,12 +16,8 @@ module User
     define_method("#{role}?") { try(:role) == role }
   end
 
-  def external?
-    is_a?(ExternalUser)
-  end
-
-  def internal?
-    is_a?(InternalUser)
+  [ExternalUser, InternalUser].each do |klass|
+    define_method("#{klass.name.underscore}?") { is_a?(klass) }
   end
 
   def to_s

app/policies/admin_or_author_policy.rb

@@ -1,6 +1,6 @@
 class AdminOrAuthorPolicy < ApplicationPolicy
   [:create?, :index?, :new?].each do |action|
-    define_method(action) { @user.internal? }
+    define_method(action) { @user.internal_user? }
   end
 
   [:destroy?, :edit?, :show?, :update?].each do |action|

app/policies/exercise_policy.rb

@@ -21,7 +21,7 @@ class ExercisePolicy < AdminOrAuthorPolicy
     def resolve
       if @user.admin?
         @scope.all
-      elsif @user.internal?
+      elsif @user.internal_user?
         @scope.where("user_id = #{@user.id} OR public = TRUE OR (team_id IS NOT NULL AND team_id IN (SELECT t.id FROM teams t JOIN internal_users_teams iut ON t.id = iut.team_id WHERE iut.internal_user_id = #{@user.id}))")
       else
         @scope.none

app/policies/team_policy.rb

@@ -1,6 +1,6 @@
 class TeamPolicy < ApplicationPolicy
   [:create?, :index?, :new?].each do |action|
-    define_method(action) { @user.internal? }
+    define_method(action) { @user.internal_user? }
   end
 
   [:destroy?, :edit?, :show?, :update?].each do |action|

app/views/application/_breadcrumbs.html.slim

@@ -1,4 +1,4 @@
-- if current_user.try(:internal?)
+- if current_user.try(:internal_user?)
   ul.breadcrumb
     - if model = Kernel.const_get(controller_name.classify) rescue nil
       - object = model.find_by(id: params[:id])

app/views/application/_navigation.html.slim

@@ -1,4 +1,4 @@
-- if current_user.try(:internal?)
+- if current_user.try(:internal_user?)
   ul.nav.navbar-nav
     li.dropdown
       a.dropdown-toggle data-toggle='dropdown' href='#'

app/views/application/_session.html.slim

@@ -1,5 +1,5 @@
 - if current_user
-  - if current_user.internal?
+  - if current_user.internal_user?
     li.dropdown
       a.dropdown-toggle data-toggle='dropdown' href='#'
         i.glyphicon.glyphicon-user