Fixed NPE on schedule

Gemfile

@@ -11,9 +11,9 @@ gem 'haml'
 gem 'nokogiri', '~> 1.6.8.rc2'
 
 if Dir.exists?('../lingua_franca')
-	gem 'lingua_franca', :path => '../lingua_franca'
+  gem 'lingua_franca', path: '../lingua_franca'
 else
-	gem 'lingua_franca', :git => 'git://github.com/lingua-franca/lingua_franca.git'
+  gem 'lingua_franca', git: 'git://github.com/lingua-franca/lingua_franca.git'
 end
 
 gem 'tzinfo-data'
@@ -21,15 +21,15 @@ gem 'sass'
 gem 'sass-rails'
 
 if Dir.exists?('../bumbleberry')
-	gem 'bumbleberry', :path => "../bumbleberry"
+  gem 'bumbleberry', path: "../bumbleberry"
 else
-	gem 'bumbleberry', :git => 'git://github.com/bumbleberry/bumbleberry.git'
+  gem 'bumbleberry', git: 'git://github.com/bumbleberry/bumbleberry.git'
 end
 
 if Dir.exists?('../paypal-express')
-	gem 'paypal-express', :path => "../paypal-express"
+  gem 'paypal-express', path: "../paypal-express"
 else
-	gem 'paypal-express', :git => 'git://github.com/bikebike/paypal-express.git'
+  gem 'paypal-express', git: 'git://github.com/bikebike/paypal-express.git'
 end
 
 gem 'uglifier', '>= 1.3.0'
@@ -48,7 +48,7 @@ gem 'redcarpet'
 gem 'sidekiq'
 gem 'letter_opener'
 gem 'launchy'
-gem 'to_spreadsheet', :git => 'git://github.com/glebm/to_spreadsheet.git'
+gem 'to_spreadsheet', git: 'git://github.com/glebm/to_spreadsheet.git'
 
 group :test do
   gem 'rspec'
@@ -64,8 +64,8 @@ group :development do
   gem 'capistrano-rails', '~> 1.1'
   gem 'capistrano-faster-assets', '~> 1.0'
 
-	gem 'eventmachine', :github => 'krzcho/eventmachine', :branch => 'master'
-	gem 'thin', :github => 'krzcho/thin', :branch => 'master'
+  gem 'eventmachine'#, :github => 'krzcho/eventmachine', :branch => 'master'
+  gem 'thin'#, :github => 'krzcho/thin', :branch => 'master'
 end
 
 group :test do

app/controllers/application_controller.rb

@@ -586,6 +586,7 @@ class ApplicationController < LinguaFrancaApplicationController
     end
 
     @events.each do | event |
+      if event.present? && event.start_time.present? && event.end_time.present?
         day = event.start_time.midnight.to_date
         time = event.start_time.hour.to_f + (event.start_time.min / 60.0)
         @schedule[day] ||= {}
@@ -595,6 +596,7 @@ class ApplicationController < LinguaFrancaApplicationController
         @schedule[day][:times][time][:length] = (event.end_time - event.start_time) / 3600.0
         @schedule[day][:times][time][:item] = event
       end
+    end
 
     @schedule = @schedule.sort.to_h
     @schedule.each do | day, data |