Mailable classes in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Mailable class in Laravel?

A Mailable class in Laravel is a special class used to build and send emails. It helps organize email content, recipients, and attachments in one place.

beginner

How do you create a new Mailable class in Laravel?

You create a new Mailable class by running the artisan command: <code>php artisan make:mail ClassName</code>. This generates a class where you define the email content.

beginner

Which method inside a Mailable class defines the email content?

The build() method defines the email content, including the view template, subject, and attachments.

beginner

How do you send an email using a Mailable class?

You send an email by calling <code>Mail::to($recipient)->send(new ClassName())</code>. This sends the email built in the Mailable class to the recipient.

intermediate

Can you pass data to a Mailable class? How?

Yes, you pass data by adding parameters to the Mailable class constructor and storing them as properties. Then you use this data in the email view.

What artisan command creates a new Mailable class?

A php artisan make:mail ClassName

B php artisan make:email ClassName

C php artisan create:mail ClassName

D php artisan generate:mail ClassName

The correct command is php artisan make:mail ClassName to create a Mailable class.

Which method in a Mailable class sets the email view and subject?

A send()

B build()

C compose()

D render()

The build() method is where you define the email view, subject, and attachments.

How do you send an email to a user using a Mailable class?

A Mail::send(new ClassName())

B Mail::email($user, new ClassName())

C Mail::to($user)->send(new ClassName())

D Mail::deliver(new ClassName())

You use Mail::to($user)->send(new ClassName()) to send the email to a specific user.

Where do you pass data to be used inside the email view?

A In the Mailable class constructor

B In the send() method

C In the build() method parameters

D In the Mail facade

Data is passed by adding parameters to the Mailable class constructor and storing them as properties.

Which of these is NOT a feature of Mailable classes?

A Setting email subject

B Organizing email content

C Adding attachments

D Sending HTTP requests

Mailable classes do not send HTTP requests; they are for building and sending emails.

Explain how to create and send an email using a Mailable class in Laravel.

Think about the steps from creating the class to sending the email.

Describe how data is passed into a Mailable class and used in the email view.

Focus on how data travels from the class to the email template.

Practice

1. What is the main purpose of a Mailable class in Laravel?

easy

A. To organize email content and settings in one place

B. To handle database migrations

C. To manage user authentication

D. To define API routes

Solution

1. Step 1: Understand the role of Mailable classes

   Mailable classes are designed to organize email content and settings such as subject, recipients, and views.

2. Step 2: Compare with other Laravel features

   Database migrations, authentication, and routing are handled by other parts of Laravel, not Mailable classes.

3. Final Answer:

   To organize email content and settings in one place -> Option A

4. Quick Check:

   Mailable class purpose = Organize email content [OK]

Hint: Mailable classes bundle email setup and content [OK]

Common Mistakes:

• Confusing Mailable with database or routing features
• Thinking Mailable handles user login
• Assuming Mailable manages API endpoints

2. Which method must you define inside a Laravel Mailable class to set the email's view and subject?

easy

A. send()

B. compose()

C. build()

D. render()

Solution

1. Step 1: Recall Mailable class structure

   The build() method is where you define the email's view and subject in Laravel Mailable classes.

2. Step 2: Eliminate incorrect methods

   Methods like send(), compose(), and render() are not used in Laravel Mailable classes for this purpose.

3. Final Answer:

   build() -> Option C

4. Quick Check:

   Set email view and subject = build() method [OK]

Hint: Use build() to configure email content and subject [OK]

Common Mistakes:

• Using send() instead of build()
• Confusing build() with render()
• Trying to use compose() which is not a Laravel Mailable method

3. Given this Mailable class snippet, what will be the subject of the sent email?

class OrderShipped extends Mailable {
  public function build() {
    return $this->subject('Your order has shipped')->view('emails.shipped');
  }
}

medium

A. Your order has shipped

B. emails.shipped

C. OrderShipped

D. No subject set

Solution

1. Step 1: Analyze the build() method

   The build() method sets the subject using subject('Your order has shipped').

2. Step 2: Understand what the subject() method does

   This method sets the email's subject line to the given string.

3. Final Answer:

   Your order has shipped -> Option A

4. Quick Check:

   Email subject = 'Your order has shipped' [OK]

Hint: Subject is set by subject() inside build() [OK]

Common Mistakes:

• Confusing view name with subject
• Assuming class name is subject
• Thinking no subject is set without explicit call

4. Identify the error in this Mailable class code:

class WelcomeUser extends Mailable {
  public $user;

  public function __construct($user) {
    $this->user = $user;
  }

  public function build() {
    return $this->view('emails.welcome')->with('user');
  }
}

medium

A. Wrong method name instead of build()

B. Incorrect property declaration

C. Missing return statement in constructor

D. Missing argument in with() method

Solution

1. Step 1: Check the with() method usage

   The with() method requires a key-value pair or an array to pass data to the view, but here it only has a key string without a value.

2. Step 2: Verify other parts of the class

   Property declaration and constructor are correct, and the method name build() is correct.

3. Final Answer:

   Missing argument in with() method -> Option D

4. Quick Check:

   with() needs key and value [OK]

Hint: with() needs key and value to pass data [OK]

Common Mistakes:

• Passing only key without value to with()
• Forgetting to return in build()
• Misnaming build() method

5. You want to send an email with a Mailable class that passes a user's name and order ID to the view. Which is the correct way to pass this data inside the build() method?

hard

A. return $this->view('emails.order')->with('name', $this->name, 'orderId', $this->orderId);

B. return $this->view('emails.order')->with(['name' => $this->name, 'orderId' => $this->orderId]);

C. return $this->view('emails.order')->with('name', $this->name)->with('orderId');

D. return $this->view('emails.order')->with(['name', $this->name, 'orderId', $this->orderId]);

Solution

1. Step 1: Understand how to pass multiple data items

   The with() method accepts an associative array to pass multiple variables to the view.

2. Step 2: Analyze each option's syntax

   return $this->view('emails.order')->with(['name' => $this->name, 'orderId' => $this->orderId]); correctly uses an array with keys and values. return $this->view('emails.order')->with('name', $this->name)->with('orderId'); misses value for 'orderId'. return $this->view('emails.order')->with('name', $this->name, 'orderId', $this->orderId); passes too many arguments. return $this->view('emails.order')->with(['name', $this->name, 'orderId', $this->orderId]); uses a numeric array instead of associative.

3. Final Answer:

   return $this->view('emails.order')->with(['name' => $this->name, 'orderId' => $this->orderId]); -> Option B

4. Quick Check:

   Pass multiple data as associative array in with() [OK]

Hint: Use associative array in with() for multiple data [OK]

Common Mistakes:

• Passing multiple arguments instead of one array
• Omitting values for keys in with()
• Using numeric array instead of associative