This simple plugin gives you the ability to call to_csv to a collection of activerecords. The builder options are the same as to_json / to_xml, except for the :include.
@users = User.all
# # defaults are export header and all fields except id, and timestamps #
@users.to_csv @users.to_csv(:only => [:last_name, :role]) @users.to_csv(:timestamps => true, :id => true, :header => false) @users.to_csv(:except => [:last_name, :role]) @users.to_csv(:except => :role, :methods => [:name, :admin?]) # # NEW FEATURE # Now you can call methods of a has_one or belongs_to association # (for now you can go up/down 1 level)
# (A note belongs_to :user) @notes = Note.all @notes.to_csv(:methods => [{:user => :name}])
In the controller where you want to export to csv, add the format.csv line (as of rails 2.1 it is not necessary to register the csv myme_type)
class UserController < ApplicationController
def index @users = User.all
respond_to do |format| format.html format.xml { render :xml => @users } format.csv { send_data @users.to_csv } end end
def show… def new… def edit… def create… def update… def destroy…
end
sudo gem install fastercsv
./script/plugin install git://github.com/arydjmal/to_csv.git
I got ideas and influence from Mike Clarks recipe #35 in Rails Recipes book, some anonymous pastie, and whoever wrote to_xml/to_json builders.
Does not work on a single activerecord, ie, User.first.to_csv. Cannot style output.
Copyright © 2008 Ary Djmal, released under the MIT license