Redmine backlogs

rb_sprint_burndown.rb.patch

diff --git a/app/models/rb_sprint_burndown.rb b/app/models/rb_sprint_burndown.rb
index d505f37..7027656 100644
--- a/app/models/rb_sprint_burndown.rb
+++ b/app/models/rb_sprint_burndown.rb
@@ -43,19 +43,19 @@ class RbSprintBurndown < ActiveRecord::Base
     @series ||= {}
     key = "#{@direction}_#{remove_empty ? 'filled' : 'all'}"
     if @series[key].nil?
-      @series[key] = self.burndown[@direction].keys.collect{|k| k.to_s}.sort
+      @series[key] = self.burndown.nil? ? []  : self.burndown[@direction].keys.collect{|k| k.to_s}.sort
       if remove_empty
         # delete :points_committed if flatline
-        @series[key].delete('points_committed') if self.burndown[@direction][:points_committed].uniq.compact.size < 1
+        @series[key].delete('points_committed') if self.burndown && self.burndown[@direction][:points_committed].uniq.compact.size < 1
 
         # delete any series that is flat-line 0/nil
         @series[key].each {|k|
-          @series[key].delete(k) if k != 'points_committed' && self.burndown[@direction][k.intern].collect{|d| d.to_f }.uniq == [0.0]
+          @series[key].delete(k) if k != 'points_committed' && self.burndown && self.burndown[@direction][k.intern].collect{|d| d.to_f }.uniq == [0.0]
         }
       end
     end
 
-    return @series[key]
+    return @series[key] || {}
   end
 
   #compatibility
@@ -66,7 +66,7 @@ class RbSprintBurndown < ActiveRecord::Base
 
   def data
     self.recalculate!
-    return self.burndown[@direction]
+    return self.burndown.nil? ? {} : self.burndown[@direction]
   end
 
   def set_defaults