Method __set

/**
 * Method to set certain otherwise inaccessible properties of the form field object.
 *
 * @param   string  $name   The property name for which to set the value.
 * @param   mixed   $value  The value of the property.
 *
 * @return  void
 *
 * @since   3.6
 */
public function __set($name, $value)
{
    switch ($name) {
        case 'formsource':
            $this->formsource = (string) $value;
            // Add root path if we have a path to XML file
            if (strrpos($this->formsource, '.xml') === \strlen($this->formsource) - 4) {
                $this->formsource = Path::clean(JPATH_ROOT . '/' . $this->formsource);
            }
            break;
        case 'min':
            $this->min = (int) $value;
            break;
        case 'max':
            if ($value) {
                $this->max = max(1, (int) $value);
            }
            break;
        case 'groupByFieldset':
            if ($value !== null) {
                $value = (string) $value;
                $this->groupByFieldset = !($value === 'false' || $value === 'off' || $value === '0');
            }
            break;
        case 'layout':
            $this->layout = (string) $value;
            // Make sure the layout is not empty.
            if (!$this->layout) {
                // Set default value depend from "multiple" mode
                $this->layout = !$this->multiple ? 'joomla.form.field.subform.default' : 'joomla.form.field.subform.repeatable';
            }
            break;
        case 'buttons':
            if (!$this->multiple) {
                $this->buttons = array();
                break;
            }
            if ($value && !\is_array($value)) {
                $value = explode(',', (string) $value);
                $value = array_fill_keys(array_filter($value), true);
            }
            if ($value) {
                $value = array_merge(array('add' => false, 'remove' => false, 'move' => false), $value);
                $this->buttons = $value;
            }
            break;
        case 'value':
            // We allow a json encoded string or an array
            if (is_string($value)) {
                $value = json_decode($value, true);
            }
            $this->value = $value !== null ? (array) $value : null;
            break;
        default:
            parent::__set($name, $value);
    }
}