Rewrite the Gantt chart. #6276

This version of the Gantt chart supports nested charts. So Projects,
Versions, and Issues will be nested underneath their parents correctly.

Additional features:

* Move all Gantt code to Redmine::Helpers::Gantt class instead of having it in
  the Gantt class, controller, and view
* Recursive and nest sub-projects
* Recursive and nest versions
* Recursive and nest issues
* Draw a line showing when a Project is active and it's progress
* Draw a line showing when a Version is active and it's progress
* Show a version's % complete
* Change the color of Projects, Versions, and Issues if they are late or
  behind schedule
* Added Project#start_date and #due_date
* Added Project#completed_percent
* Use a mini-gravatar on the Gantt chart
* Added tests for the Gantt rendering

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4072 e93f8b46-1217-0410-a6f0-8f06a7374b81

1 files changed, 12 insertions, 0 deletions

diff --git a/app/models/version.rb b/app/models/version.rb
index 07e66434d..c3969fe87 100644
--- a/app/models/version.rb
+++ b/app/models/version.rb
@@ -73,6 +73,18 @@ class Version < ActiveRecord::Base
   def completed?
     effective_date && (effective_date <= Date.today) && (open_issues_count == 0)
   end
+
+  def behind_schedule?
+    if completed_pourcent == 100
+      return false
+    elsif due_date && fixed_issues.present? && fixed_issues.minimum('start_date') # TODO: should use #start_date but that method is wrong...
+      start_date = fixed_issues.minimum('start_date')
+      done_date = start_date + ((due_date - start_date+1)* completed_pourcent/100).floor
+      return done_date <= Date.today
+    else
+      false # No issues so it's not late
+    end
+  end
   
   # Returns the completion percentage of this version based on the amount of open/closed issues
   # and the time spent on the open issues.