Typo3 Unsupported validation option(s) found

Question

Im working on an example from a typo3 extension book, and I‘m at the part to create own validators. In my Controller I placed the following:

/**
* Title of the blog
*
* @var string
* @validate NotEmpty, \Lobacher\Simpleblog\Validation\Validator\WordValidator(max=3)
*/
protected $title = '';

In the file simpleblog\Validation\Validator\WordValidator.php is this code:

<?php
namespace Lobacher\Simpleblog\Validation\Validator;

class WordValidator extends \TYPO3\CMS\Extbase\Validation\Validator\AbstractValidator {
    public function isValid($property) {
        $max = $this->options['max'];

        if (str_word_count($property, 0) <= $max)
        {
            return TRUE;
        }
        else
        {
            $this->addError('Verringern Sie die Anzahl der Worte - es sind maximal '. $max .' erlaubt!', 1383400016);
            return FALSE;
        }
    }
}
?>

But if i try to edit an entry typo3 says: Unsupported validation option(s) found: max

What did I do wrong?

Answer 1

You have to add a protected member $supportedOptions that defines the allowed parameters of your validator.

This member has to be an associative array, with the option names as keys, and the option configuration as values. The option configurations are numerically indexed arrays, where the array entries have the following meanings:

• Index 0: default value for the option (mixed)
• Index 1: description of the option (string)
• Index 2: type of the option (string, values are "string", "integer" etc.)
• Index 3: whether the option is required (boolean, optional).

An example from the NumberRangeValidator, not using the fourth option:

protected $supportedOptions = array(
    'minimum' => array(0, 'The minimum value to accept', 'integer'),
    'maximum' => array(PHP_INT_MAX, 'The maximum value to accept', 'integer'),
    'startRange' => array(0, 'The minimum value to accept', 'integer'),
    'endRange' => array(PHP_INT_MAX, 'The maximum value to accept', 'integer')
);