Add "updated at" to blog posts

app/helpers/application_helper.rb

@@ -14,4 +14,10 @@ module ApplicationHelper
       render "shared/flash"
     end
   end
+
+  def updated_at(object)
+    return "" if object.created_at == object.updated_at
+
+    object.updated_at.strftime("%Y-%m-%d %H:%M")
+  end
 end

app/views/blog_posts/show.html.erb

@@ -3,6 +3,7 @@
   <p><%= @blog_post.content %></p>
   <div class="created_at">
     <%= link_to "Edit", edit_blog_post_path(@blog_post) if @blog_post.user == current_user %>
+    <%= "Updated at #{updated_at(@blog_post)} | " %>
     <%= link_to @blog_post.created_at.strftime("%Y-%m-%d %H:%M"), @blog_post %>
   </div>
 </div>

config/environments/production.rb

@@ -45,7 +45,6 @@ Rails.application.configure do
   # config.action_cable.url = "wss://example.com/cable"
   # config.action_cable.allowed_request_origins = [ "http://example.com", /http:\/\/example.*/ ]
 
-  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   config.force_ssl = false
   config.assume_ssl = true