feat: support detail attribute for detail view

lib/generators/simple_controller/simple_controller_generator.rb

 class SimpleControllerGenerator < Rails::Generators::NamedBase
   include Rails::Generators::ResourceHelpers
 
-  source_root File.expand_path('../templates', __FILE__)
+  source_root File.expand_path('templates', __dir__)
 
-  class_option :view, type: :string, desc: "View files generate folder"
-  class_option :model, type: :string, desc: "Model name for extract attributes"
-  class_option :resource, type: :string, desc: "Resource name for var name(plural or singular)"
-  class_option :auth, type: :string, desc: "Authentication model name"
-  class_option 'auth-only', type: :boolean, desc: "Only generate authentication"
-  class_option 'no-swagger', type: :boolean, desc: "Do not generate swagger spec file"
-  class_option 'no-view', type: :boolean, desc: "Do not generate views file"
+  class_option :view, type: :string, desc: 'View files generate folder'
+  class_option :model, type: :string, desc: 'Model name for extract attributes'
+  class_option :resource, type: :string, desc: 'Resource name for var name(plural or singular)'
+  class_option :auth, type: :string, desc: 'Authentication model name'
+  class_option 'auth-only', type: :boolean, desc: 'Only generate authentication'
+  class_option 'no-swagger', type: :boolean, desc: 'Do not generate swagger spec file'
+  class_option 'no-view', type: :boolean, desc: 'Do not generate views file'
 
   def setup
-    return if options["auth-only"]
-    @routes = RSpec::Rails::Swagger::RouteParser.new(controller_path.sub(/^\//, '')).routes
-    p "Warning!! Resource is not exist, CHECK & regenerate after you have configurate the model and routes already" if resource_class.blank?
+    return if options['auth-only']
+
+    @routes = RSpec::Rails::Swagger::RouteParser.new(controller_path.sub(%r{^/}, '')).routes
+    p 'Warning!! Resource is not exist, CHECK & regenerate after you have configurate the model and routes already' if resource_class.blank?
   end
 
   def create_controller_files
-    if options["auth-only"]
-      template_file = "controllers/auth_controller.rb"
-    else
-      template_file = "controllers/controller.rb"
-    end
-    template template_file, File.join("app/controllers", controller_class_path, "#{controller_file_name}_controller.rb")
+    template_file = if options['auth-only']
+                      'controllers/auth_controller.rb'
+                    else
+                      'controllers/controller.rb'
+                    end
+    template template_file, File.join('app/controllers', controller_class_path, "#{controller_file_name}_controller.rb")
   end
 
   def copy_view_files
-    return if options["auth-only"] || options["no-view"]
-    %w(index show _single _simple _detail).each do |view|
+    return if options['auth-only'] || options['no-view']
+
+    %w[index show _single _simple _detail].each do |view|
       filename = filename_with_extensions(view)
       template "views/#{filename}", File.join('app/views', view_path, filename)
     end
   end
 
   def create_swagger_files
-    return if options["no-swagger"]
-    if options["auth-only"]
-      template_file = "specs/auth_spec.rb"
-    else
-      template_file = "specs/spec.rb"
-    end
-    template template_file, File.join("spec/requests", controller_class_path, "#{controller_file_name}_spec.rb")
+    return if options['no-swagger']
+
+    template_file = if options['auth-only']
+                      'specs/auth_spec.rb'
+                    else
+                      'specs/spec.rb'
+                    end
+    template template_file, File.join('spec/requests', controller_class_path, "#{controller_file_name}_spec.rb")
   end
 
   protected
 
   def view_path
     return options.view if options.view.present?
+
     if resource_collection.present?
       resource_collection
     elsif controller_class_path.size > 1
@@ -69,7 +73,7 @@ class SimpleControllerGenerator < Rails::Generators::NamedBase
     options.auth
   end
 
-  def response_status action
+  def response_status(action)
     case action
     when 'get'
       200
@@ -101,6 +105,7 @@ class SimpleControllerGenerator < Rails::Generators::NamedBase
       namespaced_class = namespaced_classes.join('::').singularize
       resource_class = namespaced_class.constantize
       raise NameError if resource_class.instance_of? Module
+
       resource_class
     rescue NameError
       nil
@@ -129,6 +134,7 @@ class SimpleControllerGenerator < Rails::Generators::NamedBase
       class_name.constantize
     rescue NameError => e
       raise unless e.message.include?(class_name)
+
       nil
     end
     @resource_class
@@ -156,28 +162,34 @@ class SimpleControllerGenerator < Rails::Generators::NamedBase
 
   # mod: 'all', 'only_json', 'without_json'
   def attributes_names(mod: 'all')
-    begin
-      _attributes =
-        case mod.to_s
-        when 'only_json'
-          resource_class.columns.select { |column| column.type.in?([:json, :jsonb])}
-        when 'without_json'
-          resource_class.columns.select { |column| !column.type.in?([:json, :jsonb])}
-        else
-          resource_class.columns
-        end
-      _attributes.map(&:name) - %w(id created_at updated_at)
-    rescue NameError
-      []
-    rescue
-      []
-    end
+    _attributes =
+      case mod.to_s
+      when 'only_json'
+        resource_class.columns.select { |column| column.type.in?([:json, :jsonb]) }
+      when 'without_json'
+        resource_class.columns.select { |column| !column.type.in?([:json, :jsonb]) }
+      else
+        resource_class.columns
+      end
+    _attributes.map(&:name) - %w[id created_at updated_at]
+  rescue NameError
+    []
+  rescue StandardError
+    []
+  end
+
+  def single_attribute_names(mod: 'all')
+    attributes_names(mod: mod).reject { |attribute_name| attribute_name.to_s.include?('detail') }
+  end
+
+  def detail_attribute_names(mod: 'all')
+    attributes_names(mod: mod).select { |attribute_name| attribute_name.to_s.include?('detail') }
   end
 
   def belongs_to_refs
-     active_record? ?
-      resource_class.reflections.values.select { |ref| ref.belongs_to? && !ref.polymorphic? } :
-      []
+    active_record? ?
+     resource_class.reflections.values.select { |ref| ref.belongs_to? && !ref.polymorphic? } :
+     []
   end
 
   def active_record?
@@ -185,18 +197,18 @@ class SimpleControllerGenerator < Rails::Generators::NamedBase
   end
 
   def filename_with_extensions(name)
-    [name, :json, :jbuilder] * '.'
+    [name, :json, :jbuilder].join('.')
   end
 
   def attributes_list_with_timestamps
-    attributes_list(%w(id created_at updated_at) + attributes_names)
+    attributes_list(%w[id created_at updated_at] + attributes_names)
   end
 
   def attributes_list(attributes = attributes_names)
-    attributes.map { |a| ":#{a}"} * ", "
+    attributes.map { |a| ":#{a}" } * ', '
   end
 
   def json_attributes_list(attributes = attributes_names(mod: :only_json))
-    attributes.map { |a| "#{a}: {}" } * ", "
+    attributes.map { |a| "#{a}: {}" } * ', '
   end
 end

lib/generators/simple_controller/templates/views/_detail.json.jbuilder

 json.partial! '<%= view_path %>/simple', <%= resource_singular %>: <%= resource_singular %>
+
+<%- if detail_attribute_names.present? -%>
+json.extract!(
+  <%= resource_singular %>,
+  <%- detail_attribute_names.each do |attribute_name| -%>
+  :<%= attribute_name %>,
+  <%- end -%>
+)
+<%- end -%>

lib/generators/simple_controller/templates/views/_single.json.jbuilder

@@ -5,7 +5,7 @@ json.extract!(
   :id,
   :created_at,
   :updated_at,
-  <%- attributes_names.each do |attribute_name| -%>
+  <%- single_attribute_names.each do |attribute_name| -%>
   :<%= attribute_name %>,
   <%- end -%>
 )