Initial implementation of /messages/ruby-dev

app/controllers/messages_controller.rb

@@ -3,13 +3,18 @@ class MessagesController < ApplicationController
 
   # GET /messages
   def index
-    if (query = params[:q])
+    if (list_name = params[:list_name])
+      @list = List.find_by_name list_name
+      @messages = Message.where(list_id: @list.id).order(:id)
+    elsif (query = params[:q])
       search query
+
+      render :search
     else
       @messages = []
-    end
 
-    render :search
+      render :search
+    end
   end
 
   # GET /messages/ruby-dev/1

app/views/messages/index.html.erb

@@ -0,0 +1,13 @@
+<% content_for :title, @list.name %>
+
+<p style="color: green"><%= notice %></p>
+
+<h1><%= @list.name %></h1>
+
+<% @messages.each do |message| %>
+  <h2>
+    <span><%= message.list_seq %>:</span>
+    <%= link_to without_list_prefix(message.subject), "/#{@list.name}/#{message.list_seq}" %>— <%= message.from %>
+  </h2>
+  <div><pre><%= message.body %></pre></div>
+<% end %>

config/routes.rb

@@ -1,6 +1,7 @@
 Rails.application.routes.draw do
   resources :messages
   get '/:list_name/:list_seq', to: 'messages#show'
+  get '/:list_name/', to: 'messages#index'
 
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html