Rails 3 use bundler, rubygems doesn't work?

Hello, all,
I’m using rails and ruport
but require ‘ruport/util’ in my rails application doesn’t work,
it cannot find related files,
(in standalone ruby application, require ‘rubygems’;require
‘ruport/util’
works),
but cannot work in rails application,

so I add things like
gem “ruport”
gem “gruff”
in Gemfile,
but still not work,and adding this line to Gemfile,
gem “rmagick”,“2.12.0”,:platform=>“mswin”,:require=>‘RMagick’
it reports Uncaught exception: no such file to load – RMagick
(
D:/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.9/lib/bundler/runtime.rb:68:in
`require’),
but in other standalone ruby environment
require ‘rubygems’
require ‘RMagick’ works

so I add the following lines to my rails application

$: << ‘D:\Ruby187\lib\ruby\gems\1.8\gems\ruport-util-0.14.0\lib’ if
!$:.include? ‘D:\Ruby187\lib\ruby\gems\1.8\gems\ruport-util-0.14.0\lib’
$:<< ‘D:\Ruby187\lib\ruby\gems\1.8\gems\gruff-0.3.6\lib’ if !$:.include?
‘D:\Ruby187\lib\ruby\gems\1.8\gems\gruff-0.3.6\lib’
$:<< ‘D:\Ruby187\lib\ruby\gems\1.8\gems\rmagick-2.12.0-x86-mswin32\lib’
if
!$:.include?
‘D:\Ruby187\lib\ruby\gems\1.8\gems\rmagick-2.12.0-x86-mswin32\lib’
$:<< ‘D:\Ruby187\lib\ruby\gems\1.8\gems\rmagick-2.12.0-x86-mswin32\ext’
if
!$:.include?
‘D:\Ruby187\lib\ruby\gems\1.8\gems\rmagick-2.12.0-x86-mswin32\ext’
$:<< ‘D:\Ruby187\lib\ruby\gems\1.8\gems\zip-2.0.2\lib’ if !$:.include?
‘D:\Ruby187\lib\ruby\gems\1.8\gems\zip-2.0.2\lib’

as a temp workaround,
but it sure is not good, does anyone knows why rubygems in rails cannot
work?

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