Method getStageForNewItem

/**
 * Try to load a workflow stage for newly created items
 * which does not have a workflow assigned yet. If the category is not the
 * carrier, overwrite it on your model and deliver your own carrier.
 *
 * @param   Form   $form  A Form object.
 * @param   mixed  $data  The data expected for the form.
 *
 * @return  boolean|integer  An integer, holding the stage ID or false
 * @since   4.0.0
 */
protected function getStageForNewItem(Form $form, $data)
{
    $table = $this->getTable();
    $hasKey = $table->hasField('catid');
    if (!$hasKey) {
        return false;
    }
    $catKey = $table->getColumnAlias('catid');
    $field = $form->getField($catKey);
    if (!$field) {
        return false;
    }
    $catId = isset(((object) $data)->{$catKey}) ? ((object) $data)->{$catKey} : $form->getValue($catKey);
    // Try to get the category from the html code of the field
    if (empty($catId)) {
        $catId = $field->getAttribute('default', null);
        if (!$catId) {
            // Choose the first category available
            $catOptions = $field->options;
            if ($catOptions && !empty($catOptions[0]->value)) {
                $catId = (int) $catOptions[0]->value;
            }
        }
    }
    if (empty($catId)) {
        return false;
    }
    return $this->workflow->getDefaultStageByCategory($catId);
}