views/mentions.erb @@ -1,7 +1,7 @@ Retwis-RB ========= -An example application using the Redis key-value database. +An example Twitter application using the Redis key-value database. Daniel Lucraft (dan@fluentradical.com) README.md @@ -15,7 +15,6 @@ end before do keys = redis.keys("*") - p keys end get '/' do @@ -66,11 +65,16 @@ get '/:username' do |username| erb :profile end +get '/:username/mentions' do |username| + @user = User.find_by_username(username) + @posts = @user.mentions + erb :mentions +end helpers do def link_to_user(user) f = <<-HTML - <a href="/#{user.username}">#{user.username}</a> +<a href="/#{user.username}">#{user.username}</a> HTML end @@ -81,6 +85,16 @@ helpers do count.to_s + " " + plural end end + + def display_post(post) + post.content.gsub(/@\w+/) do |mention| + if user = User.find_by_username(mention[1..-1]) + "@" + link_to_user(user) + else + mention + end + end + end def time_ago_in_words(time) distance_in_seconds = (Time.now - time).round app.rb @@ -96,6 +96,13 @@ class User < Model end end + def mentions(page=1) + from, to = (page-1)*10, page*10 + redis.list_range("user:id:#{id}:mentions", from, to).map do |post_id| + Post.new(post_id) + end + end + def add_post(post) redis.push_head("user:id:#{id}:posts", post.id) redis.push_head("user:id:#{id}:timeline", post.id) @@ -105,6 +112,10 @@ class User < Model redis.push_head("user:id:#{id}:timeline", post.id) end + def add_mention(post) + redis.push_head("user:id:#{id}:mentions", post.id) + end + def follow(user) return if user == self redis.set_add("user:id:#{id}:followees", user.id) @@ -155,6 +166,11 @@ class Post < Model post.user.followers.each do |follower| follower.add_timeline_post(post) end + content.scan(/@\w+/).each do |mention| + if user = User.find_by_username(mention[1..-1]) + user.add_mention(post) + end + end end property :content domain.rb @@ -3,10 +3,13 @@ <% @posts.each do |post| %> <div class="post"> <strong><%= link_to_user(post.user) %></strong> - <%= post.content %><br /> + <%= display_post(post) %> <div class="date"> <%= time_ago_in_words(post.created_at) %> </div> </div> <% end %> + <% if @posts.empty? %> + No posts. + <% end %> </div> views/_posts.erb @@ -19,7 +19,8 @@ <% if @logged_in_user %> <br /><br /> <a href="/">home</a> | - <%= link_to_user(@logged_in_user) %> | + <a href="/<%= @logged_in_user.username %>/mentions">mentions</a> | + <%= link_to_user(@logged_in_user) %> | <a href="/timeline">timeline</a> | <a href="/logout">logout</a> <% end %> views/header.erb @@ -9,6 +9,7 @@ <% else %> <a href="/<%= @logged_in_user.username %>/follow/<%= @user.username %>">Follow</a> <% end %> + | <a href="/<%= @user.username %>/mentions">See mentions</a> </div> <% end %> views/profile.erb 68e4b5919964768f7fae0841df915bc155f3b6e1 Daniel Lucraft dan@fluentradical.com http://github.com/danlucraft/retwis-rb/commit/544defafe2922cfda66ccf100768cdc1ea9a3579 544defafe2922cfda66ccf100768cdc1ea9a3579 2009-05-24T04:49:43-07:00 2009-05-24T04:49:43-07:00 Implemented mentions (replies) 28bc124686a035ed82b56b2f1fd9a158d9c6e141 Daniel Lucraft dan@fluentradical.com