how to automatically delete a record from the database in rails

Question

i have a rails table setup called products and its all working well, lets assume i want to auto delete a record 3 weeks after creation how do go about the code

my produc

Answer 1

If you want automatically an action, you should use cron job in your app. I have an app using clockwork gem for schedule some process on background.

Step by step :

Put this on your Gemfile

gem 'clockwork'
gem 'foreman'

Create file clock.rb on folder app

require './config/boot'
require './config/environment'
require 'clockwork'

module Clockwork
 every(1.day, 'delete.product', :at => '00:00') {
   Product.where("created_at >= ?", 3.week.ago.utc).destroy_all
 }
end

Running test clockwork

clockwork app/clock.rb

Example, this is my app using clockwork with delete automatically user every 30.seconds :

C:\Sites\multiple>clockwork app/clock.rb
I, [2013-06-12T13:36:14.380239 #2356]  INFO -- : Starting clock for 1 events: [
delete.user ]
I, [2013-06-12T13:36:14.380239 #2356]  INFO -- : Triggering 'delete.user'
I, [2013-06-12T13:36:44.784978 #2356]  INFO -- : Triggering 'delete.user'

Or If you want running clockwork with the app, you cold using foreman looks like :

foreman start

Note : running foreman you should install foreman on your machine