Merged r9785 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.0-stable@9792 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/hook.rb

@@ -107,7 +107,13 @@ module Redmine
       #
       def self.render_on(hook, options={})
         define_method hook do |context|
-          context[:controller].send(:render_to_string, {:locals => context}.merge(options))
+          if context[:hook_caller].respond_to?(:render)
+            context[:hook_caller].send(:render, {:locals => context}.merge(options))
+          elsif context[:controller].is_a?(ActionController::Base)
+            context[:controller].send(:render_to_string, {:locals => context}.merge(options))
+          else
+            raise "Cannot render #{self.name} hook from #{context[:hook_caller].class.name}"
+          end
         end
       end
       
@@ -138,14 +144,15 @@ module Redmine
     # * project => current project
     # * request => Request instance
     # * controller => current Controller instance
+    # * hook_caller => object that called the hook
     #
     module Helper
       def call_hook(hook, context={})
         if is_a?(ActionController::Base)
-          default_context = {:controller => self, :project => @project, :request => request}
+          default_context = {:controller => self, :project => @project, :request => request, :hook_caller => self}
           Redmine::Hook.call_hook(hook, default_context.merge(context))
         else
-          default_context = { :project => @project }
+          default_context = { :project => @project, :hook_caller => self }
           default_context[:controller] = controller if respond_to?(:controller)
           default_context[:request] = request if respond_to?(:request)
           Redmine::Hook.call_hook(hook, default_context.merge(context)).join(' ').html_safe