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Laravel Validation ENUM | About

by | Dec 14, 2023

Learn more about ENUM validation in Laravel. Our Laravel Support team is here to help you with your questions and concerns.

All About Laravel Validation ENUM

Validation is a key part of web application development. It makes sure that user input meets predefined criteria. Laravel offers various validation rules, and one powerful approach includes using ENUM values.

Today, we are going to take a look at how to use ENUM-based validation rules in Laravel.

What is ENUM-Based Validation?

ENUM-based validation in Laravel relies on the `Illuminate\Validation\Rules\Enum` class to validate input data against a predefined set of options. This method provides a clear and structured way to define valid options using an ENUM class.

All About Laravel Validation ENUM

Here is a breakdown of the code:

  • Import ENUM Class:

    Here, we import the ENUM class for the specific field (`education_level` in this case). The ENUM class, such as `EducationLevel`, contains a list of valid options.

  • Create ENUM Instance:

    This generates a new instance of the Enum validation rule, passing the ENUM class (`EducationLevel::class`) as a parameter. This tells Laravel to validate the input against the options defined in the ENUM class.

  • Validation Process:

    This passes the Enum validation rule to the `validate()` method, which performs the actual validation on the input data.

Defining the ENUM Class

The ENUM class, in this example, is `EducationLevel` in the `app/Enums/EducationLevel.php` file.

Defining the ENUM Class

Here are some key points about the ENUM class:

  • Namespace:

    Follow the convention of organizing ENUM classes in the `App\Enums` namespace.

  • ENUM Declaration:

    Use the `enum` keyword to declare the ENUM class. In this example, we specify that the ENUM values should be treated as strings.

  • Defined Cases:

    Enumerate the valid options using `case`.

Benefits of ENUM-Based Validation

  1. ENUM values offer a clear way to define valid options, minimizing the chances of errors.
  2. Centralizing valid options in an ENUM class makes it easy to manage and update them.
  3. The use of ENUM values improves the readability of our validation rules.
  4. ENUM-based validation ensures consistency in handling predefined options across the application.

Validation of ENUM Database Columns

In addition to input validation, Laravel also supports ENUM types in the database. For example, we can create an ENUM column in a migration as follows:

To validate input fields associated with ENUM database columns, the `in:foo,bar,…` rule can be applied:

Validation of ENUM Database Columns

Alternatively, we can use the `Rule` class for a more dynamic approach:

`Rule` class

In conclusion, ENUM-based validation in Laravel lets developers create more robust, maintainable, and readable code.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

Today, our Support Engineers introduced us to ENUM based validation in Laravel.

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