feat(recipes/pundit): configure for active admin

CHANGELOG.md

@@ -15,6 +15,7 @@ Features
   - Include `run_test` as a valid example group [#379](/~https://github.com/platanus/potassium/pull/379)
   - Updates ActiveAdmin installation to use webpacker [#350](/~https://github.com/platanus/potassium/pull/350)
   - Replaces Active Skin with Arctic Admin [#350](/~https://github.com/platanus/potassium/pull/350)
+  - Separates Pundit's configuration for Active Admin from Application's configuration
 
 Fixes
   - Forces `vue-loader` version to 15, as 16 requires `@vue/compiler-sfc`, which is a part of Vue 3 [#375](/~https://github.com/platanus/potassium/pull/375)

lib/potassium/assets/active_admin/policies/admin_user_policy.rb

@@ -0,0 +1,2 @@
+class BackOffice::AdminUserPolicy < BackOffice::DefaultPolicy
+end

lib/potassium/assets/active_admin/policies/comment_policy.rb

@@ -0,0 +1,2 @@
+class BackOffice::ActiveAdmin::CommentPolicy < BackOffice::DefaultPolicy
+end

lib/potassium/assets/active_admin/policies/default_policy.rb

@@ -0,0 +1,49 @@
+class BackOffice::DefaultPolicy
+  attr_reader :admin_user, :record
+
+  def initialize(admin_user, record)
+    @admin_user = admin_user
+    @record = record
+  end
+
+  def index?
+    true
+  end
+
+  def show?
+    true
+  end
+
+  def create?
+    true
+  end
+
+  def new?
+    create?
+  end
+
+  def update?
+    true
+  end
+
+  def edit?
+    update?
+  end
+
+  def destroy?
+    true
+  end
+
+  class Scope
+    attr_reader :admin_user, :scope
+
+    def initialize(admin_user, scope)
+      @admin_user = admin_user
+      @scope = scope
+    end
+
+    def resolve
+      scope.all
+    end
+  end
+end

lib/potassium/assets/active_admin/policies/page_policy.rb

@@ -0,0 +1,2 @@
+class BackOffice::ActiveAdmin::PagePolicy < BackOffice::DefaultPolicy
+end

lib/potassium/recipes/pundit.rb

@@ -31,20 +31,39 @@ def installed?
   end
 
   def install_admin_pundit
+    configure_active_admin_initializer
+    copy_policies
+  end
+
+  private
+
+  def configure_active_admin_initializer
+    config_active_admin_option("authorization_adapter", "ActiveAdmin::PunditAdapter")
+    config_active_admin_option("pundit_default_policy", "'BackOffice::DefaultPolicy'")
+    config_active_admin_option("pundit_policy_namespace", ":back_office")
+  end
+
+  def copy_policies
+    copy_policy("default_policy")
+    copy_policy("admin_user_policy")
+    copy_policy("page_policy", "active_admin")
+    copy_policy("comment_policy", "active_admin")
+  end
+
+  def config_active_admin_option(option, value)
     initializer = "config/initializers/active_admin.rb"
-    gsub_file initializer, /# config\.authorization_adapter =[^\n]+\n/ do
-      "config.authorization_adapter = ActiveAdmin::PunditAdapter\n"
+    gsub_file initializer, /# config\.#{option} =[^\n]+\n/ do
+      "config.#{option} = #{value}\n"
     end
-
-    template "../assets/active_admin/pundit_page_policy.rb",
-      "app/policies/active_admin/page_policy.rb"
-    template "../assets/active_admin/comment_policy.rb",
-      "app/policies/active_admin/comment_policy.rb"
-    template "../assets/active_admin/admin_user_policy.rb",
-      "app/policies/admin_user_policy.rb"
   end
 
-  private
+  def copy_policy(policy_name, model_namespace = nil)
+    destination_path = [model_namespace, policy_name].compact.join("/")
+    template(
+      "../assets/active_admin/policies/#{policy_name}.rb",
+      "app/policies/back_office/#{destination_path}.rb"
+    )
+  end
 
   def run_pundit_installer
     gather_gem 'pundit'

spec/features/pundit_spec.rb

@@ -0,0 +1,29 @@
+require "spec_helper"
+
+RSpec.describe "Pundit" do
+  before :all do
+    drop_dummy_database
+    remove_project_directory
+    create_dummy_project("pundit" => true, "devise" => true, "admin" => true)
+  end
+
+  it "adds the Pundit gem to Gemfile" do
+    content = IO.read("#{project_path}/Gemfile")
+
+    expect(content).to include("gem 'pundit'")
+  end
+
+  it "setup active admin" do
+    content = IO.read("#{project_path}/config/initializers/active_admin.rb")
+
+    expect(content).to include("config.authorization_adapter = ActiveAdmin::PunditAdapter")
+    expect(content).to include("config.pundit_default_policy = 'BackOffice::DefaultPolicy'")
+    expect(content).to include("config.pundit_policy_namespace = :back_office")
+  end
+
+  it "creates default policy" do
+    content = IO.read("#{project_path}/app/policies/back_office/default_policy.rb")
+
+    expect(content).to include("class BackOffice::DefaultPolicy")
+  end
+end