Fixes #possible_values_options when given an object with nil project.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5273 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/custom_field.rb

@@ -51,7 +51,7 @@ class CustomField < ActiveRecord::Base
   def possible_values_options(obj=nil)
     case field_format
     when 'user', 'version'
-      if obj.respond_to?(:project)
+      if obj.respond_to?(:project) && obj.project
         case field_format
         when 'user'
           obj.project.users.sort.collect {|u| [u.to_s, u.id.to_s]}

test/unit/custom_field_user_format_test.rb

@@ -36,6 +36,11 @@ class CustomFieldUserFormatTest < ActiveSupport::TestCase
     assert_equal project.users.sort.collect(&:id).map(&:to_s), possible_values
   end
   
+  def test_possible_values_with_nil_project_resource
+    project = Project.find(1)
+    assert_equal [], @field.possible_values(Issue.new)
+  end
+  
   def test_possible_values_options_with_no_arguments
     assert_equal [], @field.possible_values_options
     assert_equal [], @field.possible_values_options(nil)