Correcting cable setup to work locally

Gemfile

@@ -18,7 +18,7 @@ gem 'turbolinks', '~> 5'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 # gem 'jbuilder', '~> 2.7'
 # Use Redis adapter to run Action Cable in production
-# gem 'redis', '~> 4.0'
+gem 'redis', '~> 4.0'
 # Use Active Model has_secure_password
 # gem 'bcrypt', '~> 3.1.7'
 

Gemfile.lock

@@ -138,6 +138,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
+    redis (4.1.2)
     regexp_parser (1.6.0)
     ruby_dep (1.5.0)
     rubyzip (1.2.4)
@@ -205,6 +206,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   puma (~> 3.11)
   rails (~> 6.0.0)
+  redis (~> 4.0)
   sass-rails (~> 5)
   selenium-webdriver
   spring

app/javascript/controllers/realtime_controller.js

@@ -56,7 +56,10 @@ export default class extends Controller {
     // I don't think this is the best approach, I'll lint it in CI.
     //this.element.innerHTML = '';
     while( this.element.firstChild ) { this.element.removeChild( this.element.firstChild ); }
-    this.element.appendChild(body);
+
+    for (var i = 0; i < body.body.childNodes.length; i++) {
+      this.element.appendChild(body.body.childNodes[i]);
+    }
   }
 
 }

config/cable.yml

@@ -1,5 +1,7 @@
 development:
-  adapter: async
+  adapter: redis
+  url: <%= ENV.fetch("REDIS_URL") { "redis://localhost:6379/1" } %>
+  channel_prefix: RealtimePartialUpdateApp_development
 
 test:
   adapter: test