Remove sponsorship level from view and test

INSTALL.md

@@ -63,6 +63,15 @@ We recommend to run OSEM in production with [mod_passenger](https://www.phusionp
 and the [apache web-server](https://www.apache.org/). There are tons of guides on how to deploy rails apps on various
 base operating systems. Check Google ;-)
 
+#### ImageMagick
+We use imagemagic for image manipulation of sponsor logo. You can get it from [direct install](http://software.opensuse.org/package/ImageMagick) page of the package or else check out [Download page](http://www.imagemagick.org/script/binary-releases.php) of ImageMagick.
+
+If you are upgrading your osem instance and would like to resize the exisiting logos, you would need to `reprocess!` the images:
+```
+$ rails c
+> Sponsor.find_each { |s| s.logo.reprocess! }
+```
+
 #### Use openID
 In order to use the OpenID feature you need to register your application with the providers
 (Google and Facebook) and enter their API keys in config/secrets.yml file, changing the existing sample values.

app/views/conference/_sponsors.html.haml

@@ -4,16 +4,14 @@
 
 .container
   .row
-    .col-md-12
+    .col-md-12.text-center
       %h2 Sponsors
   - @conference.sponsorship_levels.each do |sponsorship_level|
     -if sponsorship_level.sponsors.any?
-      %h4
-        = sponsorship_level.title
       - sponsorship_level.sponsors.each_slice(3) do |slice|
-        .row
+        .row.row-centered
           - slice.each do |sponsor|
-            .col-md-4.col-sm-4.col-top
+            .col-md-4.col-sm-4.col-centered.col-top
               %a{ href: '#', data: { toggle: 'modal', target: "#modal_#{sponsor.id}" } }
                 = image_tag get_logo(sponsor), class: "img-responsive img-sponsor img-sponsor-#{sponsorship_level.position}"
 
@@ -41,4 +39,3 @@
             Want to sponsor #{@conference.short_title}?
             = link_to("mailto: #{@conference.contact.sponsor_email}?subject=#{@conference.short_title}%20Sponsorship") do
               Please contact us!
-

spec/helpers/sponsor_helper_spec.rb

@@ -0,0 +1,40 @@
+require 'spec_helper'
+
+describe SponsorsHelper, type: :helper do
+  let(:sponsor) { create(:sponsor) }
+
+  describe '#get_logo' do
+    context 'first sponsorship_level' do
+      before do
+        first_sponsorship_level = create(:sponsorship_level, position: 1)
+        sponsor.update_attributes(sponsorship_level: first_sponsorship_level)
+      end
+
+      it 'returns correct url' do
+        expect(get_logo(sponsor)).to match %r{.*(\bfirst/rails.jpg\b)}
+      end
+    end
+
+    context 'second sponsorship_level' do
+      before do
+        second_sponsorship_level = create(:sponsorship_level, position: 2)
+        sponsor.update_attributes(sponsorship_level: second_sponsorship_level)
+      end
+
+      it 'returns correct url' do
+        expect(get_logo(sponsor)).to match %r{.*(\bsecond/rails.jpg\b)}
+      end
+    end
+
+    context 'other sponsorship_level' do
+      before do
+        other_sponsorship_level = create(:sponsorship_level, position: 3)
+        sponsor.update_attributes(sponsorship_level: other_sponsorship_level)
+      end
+
+      it 'returns correct url' do
+        expect(get_logo(sponsor)).to match %r{.*(\bothers/rails.jpg\b)}
+      end
+    end
+  end
+end