Problem with custom validation

Hi, i want to do a custom validation to user_login field.

The thing is my custom validation works only in the registration form. But when try to edit profile of user already registered, i received an error message from WordPress. In the debug mode, wordpress told me something like this:

Undefined index: user_login in function.php

Uncaught error type: Argument 1 passed to CiValidator::validate_ci() must be of the type string, null given, called in function.php

This is my code:

/*validate user login*/
add_action('um_submit_form_errors_hook_','um_custom_validate_username', 999, 1);
function um_custom_validate_username( $args ) {

class CiValidator
{
    /**
     * @param string $ci
     * @return bool
     */
    public function validate_ci( string $ci ) : bool
    {
        $ci = $this->clean_ci($ci);
        $validationDigit = $ci[-1];
        $ci = preg_replace('/[0-9]$/', '', $ci );

        return $validationDigit == $this->validation_digit( $ci );
    }

    /**
     * @param string $ci
     * @return string
     */
    public function clean_ci( string $ci ) : string
    {
        return preg_replace( '/\D/', '', $ci );
    }

    /**
     * @param string $ci
     * @return int
     */
    public function validation_digit( string $ci ) : int
    {
        $ci = $this->clean_ci( $ci );

        $ci = str_pad( $ci, 7, '0', STR_PAD_LEFT );
        $a = 0;

        $baseNumber = "2987634";
        for ( $i = 0; $i < 7; $i++ ) {
            $baseDigit = $baseNumber[ $i ];
            $ciDigit = $ci[ $i ];

            $a += ( intval($baseDigit ) * intval( $ciDigit ) ) % 10;
        }

        return $a % 10 == 0 ? 0 : 10 - $a % 10;
    }
}
	$validator = new CiValidator();

	if ( isset( $args['user_login'] ) && !ctype_digit( $args['user_login'] ) || !$validator->validate_ci( $args['user_login'] ) ) {
		UM()->form()->add_error( 'user_login', 'invalid document ID' );
	}
}

Any help will be appreciated. I dont have good skills in php :/

• This topic was modified 4 years, 3 months ago by Nicolas.
• This topic was modified 4 years, 3 months ago by Nicolas.
• This topic was modified 4 years, 3 months ago by Nicolas.