wip

config.ru

@@ -11,6 +11,10 @@ Combustion.initialize! :all do
   config.logger = ActiveSupport::TaggedLogging.new(Logger.new(nil))
   config.log_level = :fatal
 
+  config.cache_classes = false
+
+  config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+
   config.view_component.preview_paths << Rails.root.join("test/components/previews")
   config.view_component.default_preview_layout = "component_preview"
 

lib/view_component/form/test_helpers.rb

@@ -7,14 +7,35 @@
 module ViewComponent
   module Form
     module TestHelpers
-      def form_with(object, builder: ViewComponent::Form::Builder, **options)
-        builder.new(object_name, object, template, options)
+      include ActionView::ModelNaming
+
+      # See: https://github.com/rails/rails/blob/83217025a171593547d1268651b446d3533e2019/actionview/lib/action_view/helpers/form_helper.rb#L737
+      def form_with(model: nil, scope: nil, **options)
+        if model
+          model   = model.last if model.is_a?(Array)
+          scope ||= model_name_from_record_or_class(model).param_key
+        end
+
+        instanciate_form_builder(scope, model, options)
       end
 
-      def object_name
-        :user
+      # See: https://github.com/rails/rails/blob/83217025a171593547d1268651b446d3533e2019/actionview/lib/action_view/helpers/form_helper.rb#L1561
+      def instanciate_form_builder(record_name, record_object = nil, **options)
+        case record_name
+        when String, Symbol
+          object = record_object
+          object_name = record_name
+        else
+          object = record_name
+          object_name = model_name_from_record_or_class(object).param_key if object
+        end
+
+        builder = options[:builder] || ViewComponent::Form::Builder
+        builder.new(object_name, object, template, options)
       end
 
+      private
+
       if Gem::Version.new(Rails::VERSION::STRING) >= Gem::Version.new("6.1")
         def template
           lookup_context = ActionView::LookupContext.new(ActionController::Base.view_paths)

spec/internal/app/models/user.rb

@@ -0,0 +1,2 @@
+class User < ActiveRecord::Base
+end

spec/internal/config/routes.rb

@@ -3,5 +3,5 @@
 Rails.application.routes.draw do
   # Add your own routes here, or remove this file if you don't have need for it.
 
-  mount Lookbook::Engine, at: "/" if Rails.env.development?
+  mount Lookbook::Engine, at: "/lookbook" if Rails.env.development? # TODO: path to "/" but broke cable path
 end

spec/internal/db/schema.rb

@@ -33,6 +33,11 @@
 
   create_table(:cities, force: true) do |t|
     t.belongs_to :country
+  end
+
+  create_table(:users, force: true) do |t|
+    t.string :first_name
+    t.string :last_name
     t.timestamps
   end
 end

spec/internal/test/components/previews/view_component/form/label_component_preview.rb

@@ -1,34 +1,21 @@
 # frozen_string_literal: true
 
+require "view_component/form/test_helpers"
+
 module ViewComponent
   module Form
     class LabelComponentPreview < ViewComponent::Preview
-      def test
-        render ViewComponent::Form::LabelComponent.new(form_builder, object_name, :first_name)
+      include ViewComponent::Form::TestHelpers
+
+      def default
+        # TODO: maybe stop passing object_name to components since it is accessing from form_builder (delegate in BaseComponent)
+        render ViewComponent::Form::LabelComponent.new(form_builder, form_builder.object_name, :first_name)
       end
 
       private
 
       def form_builder
-        @form_builder ||= ViewComponent::Form::Builder.new(object_name, object, template, {})
-      end
-
-      def object
-        OpenStruct.new
-      end
-
-      def object_name
-        :user
-      end
-
-      def template
-        lookup_context = ActionView::LookupContext.new(ActionController::Base.view_paths)
-
-        if Gem::Version.new(Rails::VERSION::STRING) >= Gem::Version.new("6.1")
-          ActionView::Base.new(lookup_context, {}, ActionController::Base.new)
-        else
-          ActionView::Base.new(lookup_context, {})
-        end
+        instanciate_form_builder(User.new)
       end
     end
   end

spec/internal/test/components/previews/view_component/form/submit_component_preview.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+require "view_component/form/test_helpers"
+
+module ViewComponent
+  module Form
+    class SubmitComponentPreview < ViewComponent::Preview
+      include ViewComponent::Form::TestHelpers
+
+      def default
+        # TODO: maybe stop passing object_name to components since it is accessing from form_builder (delegate in BaseComponent)
+        render ViewComponent::Form::SubmitComponent.new(form_builder, form_builder.object_name)
+      end
+
+      private
+
+      def form_builder
+        instanciate_form_builder(User.new)
+      end
+    end
+  end
+end

spec/internal/test/components/previews/view_component/form/text_area_component_preview.rb

@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+require "view_component/form/test_helpers"
+
+module ViewComponent
+  module Form
+    class TextAreaComponentPreview < ViewComponent::Preview
+      include ViewComponent::Form::TestHelpers
+
+      def default
+        @object = User.new
+
+        # TODO: maybe stop passing object_name to components since it is accessing from form_builder (delegate in BaseComponent)
+        render_f ViewComponent::Form::TextAreaComponent, :first_name
+      end
+
+      def with_value
+        @object = User.new(first_name: "John\John")
+
+        render_f ViewComponent::Form::TextAreaComponent, :first_name
+      end
+
+
+      private
+
+      def render_f(component_klass, *args, **options)
+        options[:object] ||= @object
+
+        builder = instanciate_form_builder(options[:object])
+
+        render component_klass.new(builder, builder.object_name, *args, options)
+      end
+    end
+  end
+end

spec/internal/test/components/previews/view_component/form/text_field_component_preview.rb

@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+require "view_component/form/test_helpers"
+
+module ViewComponent
+  module Form
+    class TextFieldComponentPreview < ViewComponent::Preview
+      include ViewComponent::Form::TestHelpers
+
+      def default
+        @object = User.new
+
+        # TODO: maybe stop passing object_name to components since it is accessing from form_builder (delegate in BaseComponent)
+        render_f ViewComponent::Form::TextFieldComponent, :first_name
+      end
+
+      def with_value
+        @object = User.new(first_name: "John")
+
+        render_f ViewComponent::Form::TextFieldComponent, :first_name
+      end
+
+
+      private
+
+      def render_f(component_klass, *args, **options)
+        options[:object] ||= @object
+
+        builder = instanciate_form_builder(options[:object])
+
+        render component_klass.new(builder, builder.object_name, *args, options)
+      end
+    end
+  end
+end