Redmine

  def users_to_csv(users)

    ic = Iconv.new(l(:general_csv_encoding), 'UTF-8')    

    decimal_separator = l(:general_csv_decimal_separator)

    export = FCSV.generate(:col_sep => l(:general_csv_separator)) do |csv|

      # csv header fields

      headers = [ l(:field_login), 

                  l(:field_firstname),

                  l(:field_lastname),

                  l(:field_mail),

                  l(:field_admin),

                  l(:field_created_on),

                  l(:field_last_login_on)

                  ]

      # Export user custom fields

      custom_fields = UserCustomField.all

      custom_fields.each {|f| headers << f.name}

      # Description in the last column

      csv << headers.collect {|c| begin; ic.iconv(c.to_s); rescue; c.to_s; end }

      # csv lines

      users.each do |user|

        fields = [user.login,

                  user.firstname, 

                  user.lastname,

                  user.mail, 

                  user.admin,

                  user.created_on,

                  user.last_login_on

                  ]

        custom_fields.each {|f| fields << show_value(user.custom_value_for(f)) }

        csv << fields.collect {|c| begin; ic.iconv(c.to_s); rescue; c.to_s; end }

      end

    end

    export

  end

  include UsersHelper

    limit = (params[:format] == 'csv') ? nil : @user_pages.items_per_page

						:limit  =>  limit,

    respond_to do |format|

      format.html { render :layout => !request.xhr? }

      format.csv  { send_data(users_to_csv(@users), :type => 'text/csv; header=present', :filename => 'export.csv') }

    end

<% other_formats_links do |f| %>

	<%= f.link_to 'CSV', :url => { :project_id => @project } %>

<% end %>