Following now works.

steveklabnik · steveklabnik · commit 4aee440705cf · 2010-08-14T19:15:49.000-04:00
Following/follower counts show on pages.
diff --git a/controllers/hacker.rb b/controllers/hacker.rb
@@ -9,3 +9,23 @@
 	#render the template
 	haml :"hackers/show"
 end
+
+#this lets you follow a Hacker
+get '/hackers/:name/follow' do
+	#we have to be logged in to follow someone
+	require_login! :return => "/hackers/#{params[:name]}/follow"
+
+	#find the hacker with the given name
+	@hacker = Hacker.first(:username => params[:name])
+
+	#follow them!
+	Hacker.push_uniq(current_user.id, :following => @hacker.email)
+	Hacker.push_uniq(@hacker.id, :followers => current_user.email)
+
+	#set a message
+	flash[:notice] = "Now following #{params[:name]}."
+
+	#redirect back to your page!
+	redirect "/hackers/#{current_user.username}"
+
+end
diff --git a/features/hacker.feature b/features/hacker.feature
@@ -30,3 +30,13 @@ Feature: Hacker management
 		When I follow "Your Page"
 		Then I should be on the hacker page for "steve"
 		And I should not see "Send steve a message"
+	Scenario: Following Hackers
+		Given there's a hacker with the username "fela"
+		And I'm logged in as "steve"
+		When I go to the hacker page for "fela"
+		And I follow "Follow fela"
+		Then I should see "Now following fela."
+		And I should be on the hacker page for "steve"
+		And I should see "Following: 1"
+		And I go to the hacker page for "fela"
+		And I should see "Followers: 1"
diff --git a/models/hacker.rb b/models/hacker.rb
@@ -16,6 +16,12 @@ class Hacker
 	#this is a flag to let us know if this Hacker can administrate the site or not.
 	key :admin, Boolean, :default => false
 
+	#the list of emails this user is following
+	key :following, Array
+
+	#the list of emails of users that are following this user
+	key :followers, Array
+
 	#we don't want to store the password (or the confirmation), so we just make an accessor
 	attr_accessor :password, :password_confirmation
 
diff --git a/views/hackers/show.haml b/views/hackers/show.haml
@@ -1,6 +1,9 @@
 %p= @hacker.username + "'s page"
 %p
-  %img{:src => @hacker.gravatar_url}
+	%img{:src => @hacker.gravatar_url}
+%p Following: #{@hacker.following.count}
+%p Followers: #{@hacker.followers.count}
 
 - if logged_in? && @hacker.username != current_user.username
-  %a{:href => "/messages/new/to/#{@hacker.username}" }= "Send #{@hacker.username} a message"
+	%a{:href => "/messages/new/to/#{@hacker.username}" }= "Send #{@hacker.username} a message"
+	%a{:href => "/hackers/#{@hacker.username}/follow"} Follow #{@hacker.username}
