Merged r2218 to r2225 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/0.8-stable@2230 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/admin_controller.rb

@@ -86,6 +86,7 @@ class AdminController < ApplicationController
     @flags = {
       :default_admin_changed => User.find(:first, :conditions => ["login=? and hashed_password=?", 'admin', User.hash_password('admin')]).nil?,
       :file_repository_writable => File.writable?(Attachment.storage_path),
+      :plugin_assets_writable => File.writable?(Engines.public_directory),
       :rmagick_available => Object.const_defined?(:Magick)
     }
   end  

app/controllers/application.rb

@@ -175,6 +175,7 @@ class ApplicationController < ActionController::Base
   # TODO: move to model
   def attach_files(obj, attachments)
     attached = []
+    unsaved = []
     if attachments && attachments.is_a?(Hash)
       attachments.each_value do |attachment|
         file = attachment['file']
@@ -183,7 +184,10 @@ class ApplicationController < ActionController::Base
                               :file => file,
                               :description => attachment['description'].to_s.strip,
                               :author => User.current)
-        attached << a unless a.new_record?
+        a.new_record? ? (unsaved << a) : (attached << a)
+      end
+      if unsaved.any?
+        flash[:warning] = l(:warning_attachments_not_saved, unsaved.size)
       end
     end
     attached