Contao\OptionWizard::validate PHP Метод

    public function validate()
    {
        $mandatory = $this->mandatory;
        $options = $this->getPost($this->strName);
        // Check labels only (values can be empty)
        if (is_array($options)) {
            foreach ($options as $key => $option) {
                // Unset empty rows
                if ($option['label'] == '') {
                    unset($options[$key]);
                    continue;
                }
                $options[$key]['label'] = trim($option['label']);
                $options[$key]['value'] = trim($option['value']);
                if ($options[$key]['label'] != '') {
                    $this->mandatory = false;
                }
                // Strip double quotes (see #6919)
                if ($options[$key]['value'] != '') {
                    $options[$key]['value'] = str_replace('"', '', $options[$key]['value']);
                }
            }
        }
        $options = array_values($options);
        $varInput = $this->validator($options);
        if (!$this->hasErrors()) {
            $this->varValue = $varInput;
        }
        // Reset the property
        if ($mandatory) {
            $this->mandatory = true;
        }
    }