Scheduled jobs in Ruby on Rails - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a basic Active Job class in Rails.

Ruby on Rails

class MyJob < ApplicationJob
  queue_as :default

  def [1]
    puts "Job is running"
  end
end

Drag options to blanks, or click blank then click option'

Aperform

Brun

Cexecute

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using method names like 'run' or 'execute' which Rails does not recognize automatically.

The perform method is the standard method that Rails calls when running a job.

2fill in blank

medium

Complete the code to enqueue a job to run asynchronously.

Ruby on Rails

MyJob.[1]

Drag options to blanks, or click blank then click option'

Arun_later

Benqueue_now

Cperform_later

Dstart_async

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-existent methods like 'run_later' or 'start_async'.

The perform_later method enqueues the job to run asynchronously in Rails.

3fill in blank

hard

Fix the error in scheduling a job to run 5 minutes from now.

Ruby on Rails

MyJob.[1](wait: 5.minutes)

Drag options to blanks, or click blank then click option'

Aperform_later

Bperform_now

Cperform_in

Dperform_at

Attempts:

3 left

💡 Hint

Common Mistakes

Using perform_now which runs the job immediately without delay.

To schedule a job with a delay, use perform_later with the wait option.

4fill in blank

hard

Fill both blanks to create a scheduled job that runs at a specific time.

Ruby on Rails

MyJob.[1](wait_until: [2])

Drag options to blanks, or click blank then click option'

Aperform_later

Bperform_now

CTime.current + 1.hour

DTime.now

Attempts:

3 left

💡 Hint

Common Mistakes

Using perform_now which does not support scheduling.

Using Time.now which is less preferred than Time.current in Rails.

Use perform_later with wait_until set to a future time like Time.current + 1.hour to schedule the job.

5fill in blank

hard

Fill all three blanks to define a job class with a custom queue and perform method.

Ruby on Rails

class CustomJob < ApplicationJob
  queue_as [1]

  def [2]
    puts [3]
  end
end

Drag options to blanks, or click blank then click option'

A:mailers

Bperform

C"Running CustomJob"

D:default

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect queue names or method names.

Forgetting to quote the string to print.

The queue_as sets the queue name, perform is the method Rails calls, and the string is printed inside the method.