Merge pull request #179 from joyofrails/feat/example-post

Add Example Post table and delegated types

Author: rossta

app/controllers/examples/posts_controller.rb

@@ -0,0 +1,38 @@
+class Examples::PostsController < ApplicationController
+  before_action :feature_enabled!
+
+  def index
+    render Examples::Posts::IndexView.new(posts: Examples::Post.limit(25).order(created_at: :desc))
+  end
+
+  def new
+    post = Examples::Post.new(post_params_permitted)
+
+    render Examples::Posts::NewView.new(post: post)
+  end
+
+  def create
+    post = Examples::Post.new(post_params_permitted)
+
+    if post.save
+      redirect_to examples_posts_path
+    else
+      render Examples::Posts::NewView.new(post: post), status: :unprocessable_entity
+    end
+  end
+
+  private
+
+  def post_params = params.fetch(:examples_post, {})
+
+  def post_params_permitted
+    post_params.permit(:title, :postable_type, link_attributes: [:url], image_attributes: [:url], markdown_attributes: [:body])
+  end
+
+  def feature_enabled!
+    return if user_signed_in? &&
+      Flipper.enabled?(:example_posts, current_user)
+
+    raise ActionController::RoutingError.new("Not Found")
+  end
+end

app/controllers/users/sessions_controller.rb

@@ -45,6 +45,9 @@ def fail
   private
 
   def feature_enabled!
-    redirect_to root_path, notice: "Coming soon!" unless Flipper[:user_registration].enabled?
+    unless Flipper.enabled?(:user_registration, current_admin_user)
+      redirect_to root_path,
+        notice: "Coming soon!"
+    end
   end
 end

app/javascript/controllers/forms/frame.js

@@ -0,0 +1,41 @@
+import { Controller } from '@hotwired/stimulus';
+import debug from '../../utils/debug';
+
+const console = debug('app:javascript:controllers:forms:frame');
+
+export default class extends Controller {
+  static targets = ['refreshButton'];
+  static values = {
+    redirectFrame: String,
+  };
+
+  connect() {
+    console.log('Connect!');
+    this.refreshButtonTarget.hidden = true;
+  }
+
+  refresh() {
+    console.log('Refresh!');
+    this.refreshButtonTarget.click();
+  }
+
+  redirect(event) {
+    if (this.refreshButtonTarget === event.detail.formSubmission.submitter)
+      return;
+
+    if (event.detail.success) {
+      const fetchResponse = event.detail.fetchResponse;
+      history.pushState(
+        { turbo_frame_history: true },
+        '',
+        fetchResponse.response.url,
+      );
+      console.log('Redirect!', fetchResponse.response.url, {
+        frame: this.redirectFrameValue,
+      });
+      Turbo.visit(fetchResponse.response.url, {
+        frame: this.redirectFrameValue,
+      });
+    }
+  }
+}

app/javascript/controllers/index.js

@@ -15,6 +15,8 @@ import PwaWebPushDemo from './pwa/web-push-demo';
 import AnalyticsCustomEvent from './analytics/custom-event';
 import TableOfContents from './table-of-contents';
 
+import FrameForm from './forms/frame';
+
 application.register('analytics', AnalyticsCustomEvent);
 application.register('code-example', CodeExample);
 application.register('clipboard-copy', ClipboardCopy);
@@ -24,3 +26,5 @@ application.register('pwa-installation', PwaInstallation);
 application.register('pwa-web-push-subscription', PwaWebPushSubscription);
 application.register('pwa-web-push-demo', PwaWebPushDemo);
 application.register('table-of-contents', TableOfContents);
+
+application.register('frame-form', FrameForm);

app/javascript/css/components/button.css

@@ -9,6 +9,10 @@
   font-family: var(--sans-serif);
   color: var(--joy-light);
 
+  &[hidden] {
+    display: none;
+  }
+
   &:is(a) {
     text-decoration: none;
   }

app/models/examples.rb

@@ -0,0 +1,5 @@
+module Examples
+  def self.table_name_prefix
+    "examples_"
+  end
+end

app/models/examples/post.rb

@@ -0,0 +1,70 @@
+class Examples::Post < ApplicationRecord
+  POSTABLE_TYPES = %w[
+    Examples::Posts::Markdown
+    Examples::Posts::Link
+    Examples::Posts::Image
+  ].freeze
+
+  delegated_type :postable, types: POSTABLE_TYPES
+
+  attr_writer :markdown, :link, :image
+
+  accepts_nested_attributes_for :postable
+
+  after_initialize :infer_postable
+
+  def self.postable_types
+    POSTABLE_TYPES
+  end
+
+  def markdown
+    @markdown || (postable if postable.is_a?(Examples::Posts::Markdown))
+  end
+
+  def image
+    @image || (postable if postable.is_a?(Examples::Posts::Image))
+  end
+
+  def link
+    @link || (postable if postable.is_a?(Examples::Posts::Link))
+  end
+
+  def markdown?
+    @markdown.present? || postable.is_a?(Examples::Posts::Markdown)
+  end
+
+  def image?
+    @image.present? || postable.is_a?(Examples::Posts::Image)
+  end
+
+  def link?
+    @link.present? || postable.is_a?(Examples::Posts::Link)
+  end
+
+  def markdown_attributes=(attributes)
+    self.markdown = Examples::Posts::Markdown.new(attributes)
+  end
+
+  def link_attributes=(attributes)
+    self.link = Examples::Posts::Link.new(attributes)
+  end
+
+  def image_attributes=(attributes)
+    self.image = Examples::Posts::Image.new(attributes)
+  end
+
+  private
+
+  def infer_postable
+    return unless postable.nil?
+
+    case postable_type
+    when "Examples::Posts::Markdown"
+      self.postable = markdown if markdown?
+    when "Examples::Posts::Link"
+      self.postable = link if link?
+    when "Examples::Posts::Image"
+      self.postable = image if image?
+    end
+  end
+end

app/models/examples/posts.rb

@@ -0,0 +1,5 @@
+module Examples::Posts
+  def self.table_name_prefix
+    "examples_posts_"
+  end
+end

app/models/examples/posts/image.rb

@@ -0,0 +1,2 @@
+class Examples::Posts::Image < ApplicationRecord
+end

app/models/examples/posts/link.rb

@@ -0,0 +1,2 @@
+class Examples::Posts::Link < ApplicationRecord
+end