Added conference list page, administration tools, and re-designed conference administration

Rakefile

@@ -1,6 +1,23 @@
-# Add your own tasks in files placed in lib/tasks ending in .rake,
-# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
-
-require File.expand_path('../config/application', __FILE__)
-
-BikeBike::Application.load_tasks
+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require File.expand_path('../config/application', __FILE__)
+
+BikeBike::Application.load_tasks
+
+task regenerate_images: :environment do
+  {
+    conference: [ :cover, :poster ],
+    organization: [ :logo, :avatar, :cover ]
+  }.each do | model_class, attributes |
+    Object.const_get(model_class.to_s.titlecase).all.each do | model |
+      attributes.each do | attribute |
+        uploader = model.send(attribute)
+        if uploader.present?
+          puts "Regenerating #{model_class}.#{attribute} = #{uploader.url}"
+          uploader.recreate_versions!
+        end
+      end
+    end
+  end
+end