Load 4 random photos on homepage

Gemfile

@@ -6,6 +6,7 @@ gem 'activerecord-session_store'
 gem 'authlogic'
 gem 'd3js-rails', '~> 3.1.6'
 gem 'exception_notification', '~> 4'
+gem 'flickraw'
 gem 'haml-rails'
 gem 'jquery-rails', '~> 2.1.4'
 gem 'mechanize'
@@ -25,6 +26,7 @@ gem 'will_paginate', '~> 3.0'
 gem 'yaml_db'
 gem 'rubycas-client', :git => 'git://github.com/rubycas/rubycas-client.git'
 
+
 group :development, :test do
   gem 'autotest-standalone'
   gem 'rspec-rails'

Gemfile.lock

@@ -67,6 +67,7 @@ GEM
     ffi-compiler (0.1.3)
       ffi (>= 1.0.0)
       rake
+    flickraw (0.9.8)
     haml (4.0.5)
       tilt
     haml-rails (0.5.3)
@@ -204,6 +205,7 @@ DEPENDENCIES
   autotest-standalone
   d3js-rails (~> 3.1.6)
   exception_notification (~> 4)
+  flickraw
   haml-rails
   jquery-rails (~> 2.1.4)
   mechanize

app/assets/stylesheets/home.css.erb

@@ -78,22 +78,6 @@
   background: #f7e26b;
 }
 
-#main #what_sec{
-  background: url(<%= asset_path 'site/hkn_members.png' %>);
-}
-
-#main #student-services_sec{
-  background: url(<%= asset_path 'site/hkn_tutoring.png' %>);
-}
-
-#main #ind_rel_sec{
-  background: url(<%= asset_path 'site/hkn_faculty.png' %>);
-}
-
-#main #membership_sec{
-  background: url(<%= asset_path 'site/hkn_banquet.png' %>);
-}
-
 /*Tutoring Calendar*/
 #daily_tutoring_schedule th{
   border: none;

app/controllers/home_controller.rb

@@ -1,6 +1,6 @@
 class HomeController < ApplicationController
   helper EventsHelper
-
+  require 'flickraw'
   def index
     @events = Event.upcoming_events(0, @current_user)
     @show_searcharea = true
@@ -18,6 +18,28 @@ def index
     else
       @tutoring_message = prop.tutoring_message
     end
+
+    FlickRaw.api_key="bb6eccbf731a58f02b4acacfcb36e85d"
+    FlickRaw.shared_secret="aa8d976469254029"
+    default_photos = [ActionController::Base.helpers.asset_path('site/hkn_members.png'), ActionController::Base.helpers.asset_path('site/hkn_tutoring.png'), ActionController::Base.helpers.asset_path('site/hkn_faculty.png'), ActionController::Base.helpers.asset_path('site/hkn_banquet.png')]
+    @photo_links = []
+    photo_indices = []
+    for i in 0..3
+      photo_index = rand(1000)
+      while photo_indices.include? photo_index
+        photo_index = rand(1000)
+      end
+      photo = flickr.people.getPublicPhotos(:user_id => '121225723@N05', :per_page => '1', :page => photo_index.to_s)
+      break if photo.nil?
+      photo_id = photo[0].id
+      sizes = flickr.photos.getSizes(:photo_id => photo_id)
+      link = sizes[5].source
+      photo_indices << photo_index
+      @photo_links << link
+    end
+    if @photo_links.length < 4
+      @photo_links = default_photos
+    end
   end
 
   def factorial

app/views/home/index.html.erb

@@ -41,7 +41,7 @@
       <div id="what" class="section-header current-header">
         <div class="text"><h1>What is HKN?</h1></div>
       </div>
-      <div id="what_sec" class="section current-section">
+      <div id="what_sec" class="section current-section" style="background-image: url(<%= @photo_links[0] %>);background-size: cover;">
         <div class="text">
           <div>
             Eta Kappa Nu (HKN) is the <a href="http://www.hkn.org/">national Electrical and Computer Engineering honor society</a>.
@@ -54,7 +54,7 @@
       <div id="student-services" class="section-header">
         <div class="text"><h1>Student Services</h1></div>
       </div>
-      <div id="student-services_sec" class="section">
+      <div id="student-services_sec" class="section" style="background-image: url(<%= @photo_links[1] %>); background-size: cover;">
         <div class="text">
           <div>
             <h2>Tutoring</h2>
@@ -72,7 +72,7 @@
       <div id="ind_rel" class="section-header">
         <div class="text"><h1>Industrial Relations</h1></div>
       </div>
-      <div id="ind_rel_sec" class="section">
+      <div id="ind_rel_sec" class="section" style="background-image: url(<%= @photo_links[2] %>); background-size:cover;">
         <div class="text">
           <div>
             HKN has strong ties with industry, linking students with companies by setting up <%= link_to "info sessions", infosessions_path %> where companies can give a presentation about themselves and provide a forum for students to talk to industry and find out more about the work environment. Additionally, we sell <%= link_to "resume books", resume_books_about_path %> containing the resumes of our members.
@@ -83,7 +83,7 @@
       <div id="membership" class="section-header">
         <div class="text"><h1>Membership</h1></div>
       </div>
-      <div id="membership_sec" class="section">
+      <div id="membership_sec" class="section" style="background-image: url(<%= @photo_links[3] %>); background-size:cover;">
         <div class="text">
           <div>
           <p>Membership in Eta Kappa Nu is extended to undergraduates in the top fourth of the junior class and the top third of the senior class in EECS, and all continuing EE graduate students. Interested students should watch for the list of eligible names, which is posted around Cory Hall and Soda Hall about a month after the beginning of each semester. </p>