ruby - NoMethodError using active admin rails 3 -

i have form(address) nested in form (customer). creating customer in app , when click creates, creates customer in database when routes show page, error.

first , foremost here error

nomethoderror in admin/customers#show  showing /usr/local/rvm/gems/ruby-1.9.3-p392/bundler/gems/active_admin-fa7e4de2d5fa/app/views/active_admin/resource/show.html.arb line #1 raised:  undefined method `address' #<customer:0x007ffb5619f420> extracted source (around line #1):  1: insert_tag renderer_for(:show) rails.root: /users/danielhatcher/rails/printonrails  application trace | framework trace | full trace app/admin/customers.rb:29:in `block (2 levels) in <top (required)>' request  parameters:  {"id"=>"11"} 

here controller

activeadmin.register customer     # menu item   menu :label => "customers", :parent => "administration"    filter :name, label: "by name"   filter :company, label: "by company"   filter :email, label: "by email"   filter :phone, label: "by phone number"    index     column :name     column :company     column :email     column :phone   end      form :partial => "form"    show :title => :name      panel "customer details"           attributes_table_for resource             row :name             row :company             row :email             row :phone           end       end       text_node(render :partial => "admin/addresses/form", :locals => { :address => resource.address })     end end 

here form

<%= form.has_many :addresses |address|  address.inputs "address"       address.inputs :class => ""        address.input :street        address.input :city        address.input :state       address.input :zip     end    end  end  %> 

customer model

class customer < activerecord::base     attr_accessible :name, :email, :phone, :addresses_attributes, :company   has_many :addresses   accepts_nested_attributes_for :addresses, :allow_destroy => true end 

address model

class address < activerecord::base     attr_accessible :street, :city, :state, :zip, :customer_id   belongs_to :customer end 

i not sure why text node triggering error , appreciated.