Initial XML export support (FRAB compatible)

app/models/event.rb

@@ -223,6 +223,12 @@ class Event < ActiveRecord::Base
     (100 * result.values.count(true) / result.values.compact.count).to_s
   end
 
+  ##
+  # Returns the slug of an event
+  def slugify
+    "#{self.id}-#{self.title.downcase.gsub(/[^a-z1-9]+/, '-').chomp('-')}"
+  end
+
   private
 
   ##

app/models/event_type.rb

@@ -12,6 +12,13 @@ class EventType < ActiveRecord::Base
 
   LENGTH_STEP = 15
 
+  ##
+  # Return the length in timestamp format (HH:MM)
+  #
+  def length_timestamp
+    [self.length / 60, self.length % 60].map { |t| t.to_s.rjust(2,'0') }.join(':')
+  end
+
   private
 
   ##