app/admin/vendor_codes.rb
ActiveAdmin.register VendorCode do
menu :priority => 7
permit_params :code, :user_name, :email, :name
actions :all, :except => [:new, :edit]
index do
column "Vendor", :name
column :code
column :created_at
column :user_name
column :email
actions
end
# filter :name, label: "Vendor", :as => :select,
# :collection => Vendor.all.map{|u| ["#{u.name}", u.name]}
filter :name, label: "Vendor"
filter :user_name
filter :email
filter :code
end