= to_xls gem

This gem transform an Array into a excel file using the spreadsheet gem.

== Usage

  @users = User.all

  #
  # defaults are export headers and all fields
  #

  @users.to_xls
  @users.to_xls(:headers => false)
  @users.to_xls(:columns => [:name, :role])
  @users.to_xls(:columns => [:name, {:company => [:name, :address]}])
  @users.to_xls(:columns => [:name, {:company => [:name, :address]}], :headers => [:name, :company, :address])


== Requirements

In config/initializers/mime_types.rb register the custom mime type.

  Mime::Type.register "application/vnd.ms-excel", :xls  

== How to use

In the controller where you want to export to excel, add the format.xls line.

  class UserController < ApplicationController

    def index
      @users = User.all

      respond_to do |format|
        format.html
        format.xml { render :xml => @users }
        format.xls { send_data @users.to_xls }
      end
    end

    def show...
    def new...
    def edit...
    def create...
    def update...
    def destroy...

  end


== Dependencies

  spreadsheet gem


== Install

  Include this gem in your environment.rb config file:
  
    config.gem 'to_xls'