CODEWITHSUNDEEP
ruby-on-railsrubytaskdelayed-jobjob-scheduling
Rubioli
Rubioli

Reputation: 680

Ruby on Rail - Add background task to update status and expiration date

I am making a auction web app. When a ad is created, I automatically add expiration date into database.

  before_create :set_expiration_date

  def set_expiration_date
    self.expiration_date =  Time.now + 60.days
  end

How can I add a background task/job, so when a ad has reached its expiration date, it can change the status to false.

Is it any good gem that I could use in my case?

I have tried whenever gem and it was very cumbersome and it didn't ran in background and hard to understand.

Upvotes: 1

Views: 1077

Answers (3)

asceta
asceta

Reputation: 97

I do not have enough information to be sure, but keep the system updating records sounds a little overcoding for me. Is really necessary to store your model status field? I mean, you can also calculate if your records have expired whenever you need it and only when you need it, just add a scope to your model like:

class Food < ApplicationRecord
  scope :not_expired, -> { where(:expiration_date > DateTime.now) }
end

Then you used it like this:

@groceries = Food.not_expired

Upvotes: 1

Roman Kovtunenko
Roman Kovtunenko

Reputation: 447

Just create background job changing the status in after create callback which would be performed at exp. date

more info: http://guides.rubyonrails.org/active_job_basics.html

Upvotes: 0

toddmetheny
toddmetheny

Reputation: 4443

In your lib/tasks file, create a file called something.rake and inside that file, create a task by saying:

task :name_of_task => :environment do
  # name of model
  Ad.find_each do |ad|
     # if add expired, change status to false and save
  end
end

You can run your task by saying rake name_of_task in the terminal...or you can add name_of_task to the heroku scheduler if you're using heroku. https://elements.heroku.com/addons/scheduler

Upvotes: 0

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