Authorisation management using CanCanCan added

db/migrate/20210228100636_add_roles_to_users.rb

@@ -0,0 +1,14 @@
+# Rename the :admin field to :admin_role and change integer to boolean
+class AddRolesToUsers < ActiveRecord::Migration[6.1]
+  def change
+    add_column :users, :admin_role, :boolean, default: false
+
+    User.find_each do |user|
+      user.admin_role=true if user.admin>0
+      user.save!
+    end
+
+    remove_column :users, :admin
+    add_column :users, :moderator_role, :boolean, default: false
+  end
+end