Laravel sometimes validation rule

Question

I am trying to validate a password field only if it is present. I want to allow someone to edit a user and they may or may not want to change the users password. So I thought I

Answer 1

I think we should tell laravel If password is not empty put the rules otherwise do nothing.

$this->validate($request, [
  'password' => $request->password != null ?'sometimes|required|min:8': ''
]);

Answer 2

In edit mode you fill password field by for example "********" and in update mode validate like this

$this->validate($request, [
    'password' => 'required|min:8',
]);

and in controller check $data['password']='********' find old password and

$data['password']='old password in db'

and $data['password']!='********' update pssword

Answer 3

Docs don't make it clear, But removing required makes it work.

$this->validate($request, [
    'password' => 'sometimes|min:8',
]);

Answer 4

As an option to the selected answer, you can use:

    $this->validate($request, [
       'password' => 'nullable|min:8',
    ]);

Answer 5

Laravel sometimes validation rule and their function:

accepted The field under validation must be yes, on, 1, or true. This is useful for validating "Terms of Service" acceptance.

active_url The field under validation must have a valid A or AAAA record according to the dns_get_record PHP function.

after:date The field under validation must be a value after a given date. The dates will be passed into the strtotime PHP function: 'start_date' => 'required|date|after:tomorrow' Instead of passing a date string to be evaluated by strtotime, you may specify another field to compare against the date: 'finish_date' => 'required|date|after:start_date'

after_or_equal:date The field under validation must be a value after or equal to the given date. For more information, see the after rule.

alpha The field under validation must be entirely alphabetic characters.

Answer 6

"I am trying to validate a password field only if it is present."

To do this, you can use the "nullable" rule within the validation system.

For example:

$this->validate($request, [
    'password' => 'sometimes|nullable|min:8',
]);

For more information take a look at https://laravel.com/docs/5.6/validation section under "A Note On Optional Fields"