[chef] possible to call data_bag_item w/in erb template?

[Bryan Berry < >]

I am trying to call the data_bag_item method within an erb template.  My sudo users may have multiple sudo cmds so i have embedded them directly into the user's databag like so

file: users/oper.json

{

  "id": "oper",

  "groups": "oper",

  "uid": 977,

  "shell": "\/bin\/bash",

  "password": "$1$WV1cZLkt$FmFEuRFCGKWaabud6.Gld1",

  "sudo_cmds": [ "ALL=(ALL) NOPASSWD:/sbin/reboot",

                "ALL=(ALL) NOPASSWD:/sbin/poweroff" ]

}

file: recipes/default.rb

sudoers = []

data_bag('users').each do |user_name|

        u = data_bag_item('users', user_name)

        if u['sudo_cmds']

                sudoers << u['id']

        end

end

template "/etc/sudoers" do

  source "sudoers.erb"

  mode 0440

  owner "root"

  group "root"

  variables(

    :sudoers => sudoers

  )

end

file: sudoers.erb

# User privilege specification

root          ALL=(ALL) ALL

<% @sudoers.each do |user|

        cmds = data_bag_item('users/#{user}', 'sudo_cmds')

        cmds.each do |cmd|  -%>

<%= user %> <%= cmd %>

<%      end

   end -%>

Here is the error i get when I try to do this 

Generated at Sat Oct 08 16:38:16 +0200 2011

Chef::Mixin::Template::TemplateError: 

Chef::Mixin::Template::TemplateError (undefined method `data_bag_item' for #<Erubis::Context:0xb6ffcb64>) on line #12:

 10: 

 11: <% @sudoers.each do |user| 

 12:    cmds = data_bag_item('users/#{user}', 'sudo_cmds')      

 13:    

 14:    cmds.each do |cmd|  -%>