Merged r2119 to r2127 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/0.8-stable@2133 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/document.rb

@@ -28,4 +28,10 @@ class Document < ActiveRecord::Base
   
   validates_presence_of :project, :title, :category
   validates_length_of :title, :maximum => 60
+  
+  def after_initialize
+    if new_record?
+      self.category ||= Enumeration.default('DCAT')
+    end
+  end
 end

app/models/enumeration.rb

@@ -44,7 +44,9 @@ class Enumeration < ActiveRecord::Base
   end
 
   def before_save
-    Enumeration.update_all("is_default = #{connection.quoted_false}", {:opt => opt}) if is_default?
+    if is_default? && is_default_changed?
+      Enumeration.update_all("is_default = #{connection.quoted_false}", {:opt => opt})
+    end
   end
   
   def objects_count

app/models/user.rb

@@ -178,6 +178,11 @@ class User < ActiveRecord::Base
     token = Token.find_by_action_and_value('autologin', key)
     token && (token.created_on > Setting.autologin.to_i.day.ago) && token.user.active? ? token.user : nil
   end
+  
+  # Makes find_by_mail case-insensitive
+  def self.find_by_mail(mail)
+    find(:first, :conditions => ["LOWER(mail) = ?", mail.to_s.downcase])
+  end
 
   # Sort users by their display names
   def <=>(user)