Redirect back to the main list page if there are no messages at all in a given month

2 files changed, 11 insertions, 0 deletions

diff --git a/ag-web.rb b/ag-web.rb
index 071246d..fd11ba4 100644
--- a/ag-web.rb
+++ b/ag-web.rb
@@ -130,6 +130,11 @@ get '/:list/messages/:year-:month/:page?' do
     result = messages_in_month(params[:list], params[:year], params[:month], current_page)
     max_pages = (result['hits']['total'].to_f / PER_PAGE).ceil
 
+    if result['hits']['total'] == 0
+      redirect "/%s/?no_messages=1" % params[:list]
+      return
+    end
+
     erb :listmonth, locals: { results: result, list: params[:list], current_page: current_page, max_pages: max_pages, mode: :messages }
   rescue => e
     $stderr.puts e.to_s
diff --git a/views/listindex.erb b/views/listindex.erb
index ecf6ab7..30a0a17 100644
--- a/views/listindex.erb
+++ b/views/listindex.erb
@@ -1,5 +1,11 @@
 <h1 class="first-header">Gentoo Archives: <%= list %></h1>
 
+<% if params[:no_messages] %>
+<div class="alert alert-warning">
+  There are no messages in the archive for the requested month.
+</div>
+<% end %>
+
 <table class="table">
   <tr>
     <th>Month</th>