<%-
  require 'csv'

  default = active_admin_application.csv_options
  options = default.merge active_admin_config.csv_builder.options
  columns = active_admin_config.csv_builder.columns

  csv_output = CSV.generate(options) do |csv|
    csv << columns.map(&:name)
    collection.each do |resource|
      csv << columns.map do |column|
        call_method_or_proc_on resource, column.data
      end
    end
  end
%>
<%= csv_output.html_safe %>