From ed608cb7d39ff1224a4d1cad4b96ba0fa3505947 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Fri, 22 Oct 2010 22:13:39 +0000
Subject: [PATCH] Fixed: error on gantt when no issue have a due date (#6350).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4280 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 lib/redmine/helpers/gantt.rb              |  6 +++---
 test/functional/gantts_controller_test.rb | 12 +++++++++++-
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/lib/redmine/helpers/gantt.rb b/lib/redmine/helpers/gantt.rb
index cec323720..0f86648e7 100644
--- a/lib/redmine/helpers/gantt.rb
+++ b/lib/redmine/helpers/gantt.rb
@@ -283,8 +283,8 @@ module Redmine
       end
 
       def line_for_project(project, options)
-        # Skip versions that don't have a start_date
-        if project.is_a?(Project) && project.start_date
+        # Skip versions that don't have a start_date or due date
+        if project.is_a?(Project) && project.start_date && project.due_date
           options[:zoom] ||= 1
           options[:g_width] ||= (self.date_to - self.date_from + 1) * options[:zoom]
 
@@ -419,7 +419,7 @@ module Redmine
 
       def line_for_version(version, options)
         # Skip versions that don't have a start_date
-        if version.is_a?(Version) && version.start_date
+        if version.is_a?(Version) && version.start_date && version.due_date
           options[:zoom] ||= 1
           options[:g_width] ||= (self.date_to - self.date_from + 1) * options[:zoom]
 
diff --git a/test/functional/gantts_controller_test.rb b/test/functional/gantts_controller_test.rb
index ffc799b25..4c891c3d0 100644
--- a/test/functional/gantts_controller_test.rb
+++ b/test/functional/gantts_controller_test.rb
@@ -21,7 +21,7 @@ class GanttsControllerTest < ActionController::TestCase
       assert_select "div a.issue", /##{i.id}/
     end
     
-    should_eventually "work without issue due dates" do
+    should "work without issue due dates" do
       Issue.update_all("due_date = NULL")
       
       get :show, :project_id => 1
@@ -29,6 +29,16 @@ class GanttsControllerTest < ActionController::TestCase
       assert_template 'show.html.erb'
       assert_not_nil assigns(:gantt)
     end
+    
+    should "work without issue and version due dates" do
+      Issue.update_all("due_date = NULL")
+      Version.update_all("effective_date = NULL")
+      
+      get :show, :project_id => 1
+      assert_response :success
+      assert_template 'show.html.erb'
+      assert_not_nil assigns(:gantt)
+    end
 
     should "work cross project" do
       get :show