Form generator

.gitignore

@@ -6,3 +6,4 @@ test/dummy/db/*.sqlite3-journal
 test/dummy/log/*.log
 test/dummy/tmp/
 test/dummy/.sass-cache
+tmp

lib/rails/generators/form/form_generator.rb

@@ -0,0 +1,25 @@
+require 'rails/generators'
+require 'rails/generators/named_base'
+
+module Rails
+  module Generators # :nodoc:
+    class FormGenerator < Rails::Generators::NamedBase # :nodoc:
+      desc 'This generator creates an active form file at app/forms'
+
+      check_class_collision suffix: 'Form'
+
+      hook_for :test_framework
+
+      argument :attributes, type: :array, default: [], banner: "field1 field2 field3"
+
+      def self.default_generator_root
+        File.dirname(__FILE__)
+      end
+
+      def create_job_file
+        template 'form.rb', File.join('app/forms', class_path, "#{file_name}_form.rb")
+      end
+
+    end
+  end
+end

lib/generators/active_form/install_generator.rb → lib/rails/generators/form/form_install_generator.rb

@@ -1,9 +1,9 @@
 require 'rails/generators'
 require 'rails/generators/base'
 
-module ActiveForm
+module Rails
   module Generators
-    class InstallGenerator < Rails::Generators::Base
+    class FormInstallGenerator < Rails::Generators::Base
 
       desc "Creates a forms directory into your app and test directories and includes the necessary JS file."
 

lib/rails/generators/form/templates/form.rb

@@ -0,0 +1,9 @@
+<% module_namespacing do -%>
+class <%= class_name %>Form < ActiveForm::Base
+  <% if attributes.present? %>
+    attributes <%= attributes.map {|a| ":#{a.name}" }.join(", ") %>
+  <% else %>
+  # attributes :name, :email
+  <% end %>
+end
+<% end -%>

test/generators/form_generator_test.rb

@@ -0,0 +1,30 @@
+require "rails/generators/test_case"
+require 'rails/generators/form/form_generator'
+
+class FormGeneratorTest < Rails::Generators::TestCase
+  tests Rails::Generators::FormGenerator
+
+  destination File.expand_path("../../tmp", File.dirname(__FILE__))
+  setup :prepare_destination
+
+  def test_help
+    content = run_generator ["--help"]
+    assert_match(/creates an active form file/, content)
+  end
+
+  def test_form_is_created
+    run_generator ["inquiry"]
+    assert_file "app/forms/inquiry_form.rb", /class InquiryForm < ActiveForm::Base/
+  end
+
+  def test_form_with_attributes
+    run_generator ["feedback", "name", "email", "phone"]
+    assert_file "app/forms/feedback_form.rb", /class FeedbackForm < ActiveForm::Base/
+    assert_file "app/forms/feedback_form.rb", /attributes :name, :email, :phone/
+  end
+
+  def test_namespaced_forms
+    run_generator ["admin/feedback"]
+    assert_file "app/forms/admin/feedback_form.rb", /class Admin::FeedbackForm < ActiveForm::Base/
+  end
+end

test/generators/install_generator_test.rb

@@ -1,7 +1,8 @@
-require "test_helper"
+require "rails/generators/test_case"
+require "rails/generators/form/form_install_generator"
 
-class InstallGeneratorTest < Rails::Generators::TestCase
-  tests ActiveForm::Generators::InstallGenerator
+class FormInstallGeneratorTest < Rails::Generators::TestCase
+  tests Rails::Generators::FormInstallGenerator
   destination File.expand_path("../../tmp", __FILE__)
   setup :prepare_destination
 

test/test_helper.rb

@@ -14,5 +14,3 @@
   ActiveSupport::TestCase.fixture_path = File.expand_path("../fixtures", __FILE__)
 end
 
-require "rails/generators/test_case"
-require "generators/active_form/install_generator"