/**
* Returns the data sources for this element
*
* @return array
*/
protected function getDataSources()
{
if (empty($this->container)) {
return array();
} else {
return $this->container->getDataSources();
}
}
/**
* Called when the element needs to update its value from form's data sources
*
* Behaves similar to Element::updateValue(), the field's value is used to
* deduce indexes taken by repeat items.
*
* @see setIndexField()
* @throws HTML_QuickForm2_Exception
*/
protected function updateValue()
{
// check that we are not added to another Repeat
// done here instead of in setContainer() for reasons outlined in InputFile
$container = $this->getContainer();
while (!empty($container)) {
if ($container instanceof self) {
throw new HTML_QuickForm2_Exception("Repeat element cannot be added to another Repeat element");
}
$container = $container->getContainer();
}
if (null === $this->indexField && !$this->_guessIndexField()) {
return;
}
/* @var HTML_QuickForm2_DataSource $ds */
foreach (parent::getDataSources() as $ds) {
if (null !== ($value = $ds->getValue($this->indexField))) {
$this->setIndexes(array_keys($value));
return;
}
}
}
