How to check form field value in laravel for absence in MYSQL table?

Question

Laravel

The method for checking the input field for existence in the table in laravel is: https://laravel.com/docs/8.x/validation#rule-exists
And I need to understand if the email is in the table, and only then redirect the user to your personal account. Here's how it doesn't work: 'email' => '!exists:users'
However, I want to use laravel's normal validation. For example, in a class for a specific request, write the following code:

return [
            'email' => 'required|email',
            'password' => 'required|confirmed|min:8',
            'email' => '!exists:users'
        ];

Then - pass the request class object to the controller in the method that is associated with the URL that the controller processes.
I don't want to use Validator::make or anything like that. Is it possible to do without all this in my case?

Answer 1

https://laravel.com/docs/8.x/validation#rule-unique

Answer 2

You can continue reading the section on validation and learn about three types of custom rules with which you can do any kind of validation.

Answer 3

And I need to understand if there is an email in the table, and only then redirect the user to the personal account.

this is not a validation. This is business logic. No need to shove business logic into validation / request.