Merged r10810 from trunk (#12359).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.1-stable@10821 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/version.rb

@@ -33,6 +33,7 @@ class Version < ActiveRecord::Base
   validates_format_of :effective_date, :with => /^\d{4}-\d{2}-\d{2}$/, :message => :not_a_date, :allow_nil => true
   validates_inclusion_of :status, :in => VERSION_STATUSES
   validates_inclusion_of :sharing, :in => VERSION_SHARINGS
+  validate :validate_version
 
   scope :named, lambda {|arg| { :conditions => ["LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip]}}
   scope :open, :conditions => {:status => 'open'}
@@ -275,4 +276,10 @@ class Version < ActiveRecord::Base
       progress
     end
   end
+
+  def validate_version
+    if effective_date.nil? && @attributes['effective_date'].present?
+      errors.add :effective_date, :not_a_date
+    end
+  end
 end