Action Mailer setup in Ruby on Rails - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a mailer class inheriting from the correct base class.

Ruby on Rails

class UserMailer < [1]
end

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

AMailerBase

BApplicationMailer

CActionMailer::Base

DBaseMailer

Attempts:

3 left

💡 Hint

Common Mistakes

Using a non-existent base class like MailerBase.

Inheriting from ApplicationMailer when it is not defined.

The mailer class must inherit from ActionMailer::Base to use Action Mailer's features.

2fill in blank

medium

Complete the method to send a welcome email with the correct mail method call.

Ruby on Rails

def welcome_email(user)
  @user = user
  mail(to: @user.email, subject: [1])
end

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

A:welcome

B:greeting

C"Hello"

D"Welcome to our site"

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a symbol instead of a string for the subject.

Omitting quotes around the subject text.

The mail method's subject option expects a string for the email subject line.

3fill in blank

hard

Fix the error in setting the default 'from' email address in the mailer class.

Ruby on Rails

class UserMailer < ActionMailer::Base
  default [1]: '[e-mail]'
end

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

Afrom

Baddress

Cemail

Dsender

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'sender' or 'email' instead of 'from'.

Using 'address' which is not recognized.

The correct key to set the sender email address is from in the default method.

4fill in blank

hard

Fill both blanks to configure SMTP settings in the environment file.

Ruby on Rails

config.action_mailer.delivery_method = [1]
config.action_mailer.smtp_settings = [2]

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

A:smtp

B{ address: 'smtp.example.com', port: 587 }

C:sendmail

D{ address: 'localhost', port: 25 }

Attempts:

3 left

💡 Hint

Common Mistakes

Using :sendmail delivery method but providing SMTP settings.

Providing incorrect keys or values in smtp_settings.

Set delivery method to :smtp and provide SMTP server details in smtp_settings.

5fill in blank

hard

Fill all three blanks to create a mailer method that sets instance variable, calls mail, and specifies a template.

Ruby on Rails

def notification_email(user)
  [1] = user
  mail(to: user.email, subject: 'Notification') do |format|
    format.[2] [3]
  end
end

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

A@user

Bhtml

C:notification_email

Dtext

Attempts:

3 left

💡 Hint

Common Mistakes

Using local variable instead of instance variable.

Using wrong format method like 'text' when HTML is expected.

Passing string instead of symbol for template name.

Set @user instance variable, use html format, and specify the template symbol :notification_email.