Turbo Broadcasts CRUD

app/controllers/posts_controller.rb

@@ -25,6 +25,10 @@ def create
 
     respond_to do |format|
       if @post.save
+        Broadcasters::Posts::Created.new(@post).call
+
+        # update_posts_count
+        # Turbo::StreamsChannel.broadcast_append_to :posts_list, target: 'all-posts', partial: 'posts/post', locals: { post: @post }
         format.html { redirect_to post_url(@post), notice: "Post was successfully created." }
         format.json { render :show, status: :created, location: @post }
       else
@@ -38,6 +42,7 @@ def create
   def update
     respond_to do |format|
       if @post.update(post_params)
+        Turbo::StreamsChannel.broadcast_replace_to :posts_list, target: @post, partial: 'posts/post', locals: { post: @post }
         format.html { redirect_to post_url(@post), notice: "Post was successfully updated." }
         format.json { render :show, status: :ok, location: @post }
       else
@@ -50,7 +55,8 @@ def update
   # DELETE /posts/1 or /posts/1.json
   def destroy
     @post.destroy
-
+    update_posts_count
+    Turbo::StreamsChannel.broadcast_remove_to :posts_list, target: @post
     respond_to do |format|
       format.html { redirect_to posts_url, notice: "Post was successfully destroyed." }
       format.json { head :no_content }
@@ -67,4 +73,9 @@ def set_post
     def post_params
       params.require(:post).permit(:body)
     end
+
+    def update_posts_count
+      # Turbo::StreamsChannel.broadcast_update_to :posts_list, target: 'posts_count', html: Post.count
+      Turbo::StreamsChannel.broadcast_update_to :posts_list, target: 'posts_count', partial: 'posts/count', locals: { count: Post.count }
+    end
 end

app/models/post.rb

@@ -1,2 +1,25 @@
 class Post < ApplicationRecord
+  # broadcasts_to ->(post) { :posts_list }
+
+  # after_create_commit { broadcast_prepend_to :posts_list }
+  # after_create_commit { broadcast_append_to :posts_list }
+  # after_update_commit { broadcast_replace_to :posts_list }
+  # after_destroy_commit { broadcast_remove_to :posts_list }
+
+  # after_create_commit do
+  #   update_posts_count
+  #   broadcast_append_to :posts_list, target: 'all-posts', partial: 'posts/post', locals: { post: self }
+  # end
+  # after_update_commit do
+  #   broadcast_replace_to :posts_list, target: self, partial: 'posts/post', locals: { post: self }
+  # end
+  # after_destroy_commit do
+  #   update_posts_count
+  #   broadcast_remove_to :posts_list, target: self
+  # end
+
+  # def update_posts_count
+  #   # broadcast_update_to :posts_list, target: 'posts_count', html: Post.count
+  #   broadcast_update_to :posts_list, target: 'posts_count', partial: 'posts/count', locals: { count: Post.count }
+  # end
 end

app/services/broadcasters/posts/created.rb

@@ -0,0 +1,21 @@
+class Broadcasters::Posts::Created
+  attr_reader :post
+  def initialize(post)
+    @post = post
+  end
+
+  def call
+    update_posts_count
+    add_post_to_list
+  end
+
+  private
+
+  def add_post_to_list
+    Turbo::StreamsChannel.broadcast_append_to :posts_list, target: 'all-posts', partial: 'posts/post', locals: { post: @post }
+  end
+
+  def update_posts_count
+    Turbo::StreamsChannel.broadcast_update_to :posts_list, target: 'posts_count', partial: 'posts/count', locals: { count: Post.count }
+  end
+end

app/views/posts/_count.html.erb

@@ -0,0 +1 @@
+<%= count %>

app/views/posts/index.html.erb

@@ -1,8 +1,15 @@
 <p style="color: green"><%= notice %></p>
 
-<h1>Posts</h1>
+<h1>
+  Posts:
+  <span id="posts_count">
+    <%= @posts.count %>
+  </span>
+</h1>
 
-<div id="posts">
+<%= turbo_stream_from :posts_list %>
+
+<div id="all-posts">
   <% @posts.each do |post| %>
     <%= render post %>
     <p>