Added cancancan gem

Gemfile

@@ -23,6 +23,7 @@ gem 'jbuilder', '~> 2.7'
 # gem 'bcrypt', '~> 3.1.7'
 gem 'simple_form'
 gem 'devise', '~> 4.2'
+gem 'cancancan'
 
 # Use Active Storage variant
 # gem 'image_processing', '~> 1.2'
@@ -65,3 +66,4 @@ gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 gem 'rubocop', '~> 0.79.0', require: false
 gem 'haml', '~> 5.1', '>= 5.1.2'
 gem 'overcommit'
+gem 'rails-i18n'

Gemfile.lock

@@ -65,6 +65,7 @@ GEM
       msgpack (~> 1.0)
     builder (3.2.4)
     byebug (11.1.1)
+    cancancan (3.0.2)
     capybara (3.31.0)
       addressable
       mini_mime (>= 0.1.3)
@@ -161,6 +162,9 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.3.0)
       loofah (~> 2.3)
+    rails-i18n (6.0.0)
+      i18n (>= 0.7, < 2)
+      railties (>= 6.0.0, < 7)
     railties (6.0.2.1)
       actionpack (= 6.0.2.1)
       activesupport (= 6.0.2.1)
@@ -272,6 +276,7 @@ PLATFORMS
 DEPENDENCIES
   bootsnap (>= 1.4.2)
   byebug
+  cancancan
   capybara (>= 2.15)
   database_cleaner
   devise (~> 4.2)
@@ -284,6 +289,7 @@ DEPENDENCIES
   pg (>= 0.18, < 2.0)
   puma (~> 4.1)
   rails (~> 6.0.2, >= 6.0.2.1)
+  rails-i18n
   rspec-rails (~> 4.0.0.beta3)
   rubocop (~> 0.79.0)
   sass-rails (>= 6)

app/models/ability.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+class Ability
+  include CanCan::Ability
+
+  def initialize(user)
+    # Define abilities for the passed in user here. For example:
+    #
+    #   user ||= User.new # guest user (not logged in)
+    #   if user.admin?
+    #     can :manage, :all
+    #   else
+    #     can :read, :all
+    #   end
+    #
+    # The first argument to `can` is the action you are giving the user
+    # permission to do.
+    # If you pass :manage it will apply to every action. Other common actions
+    # here are :read, :create, :update and :destroy.
+    #
+    # The second argument is the resource the user can perform the action on.
+    # If you pass :all it will apply to every resource. Otherwise pass a Ruby
+    # class of the resource.
+    #
+    # The third argument is an optional hash of conditions to further filter the
+    # objects.
+    # For example, here the user can only update published articles.
+    #
+    #   can :update, Article, :published => true
+    #
+    # See the wiki for details:
+    # https://github.com/CanCanCommunity/cancancan/wiki/Defining-Abilities
+  end
+end