/**
* Initializes the list with choices.
*
* Safe to be called multiple times. The list is cleared on every call.
*
* @param array|\Traversable $choices The choices to write into the list.
* @param array $labels Ignored.
* @param array $preferredChoices The choices to display with priority.
*
* @throws InvalidArgumentException When passing a hierarchy of choices and using
* the "groupPath" option at the same time.
*/
protected function initialize($choices, array $labels, array $preferredChoices)
{
if (null !== $this->groupPath) {
$groupedChoices = array();
foreach ($choices as $i => $choice) {
if (is_array($choice)) {
throw new InvalidArgumentException('You should pass a plain object array (without groups) when using the "groupPath" option.');
}
try {
$group = $this->propertyAccessor->getValue($choice, $this->groupPath);
} catch (NoSuchPropertyException $e) {
// Don't group items whose group property does not exist
// see https://github.com/symfony/symfony/commit/d9b7abb7c7a0f28e0ce970afc5e305dce5dccddf
$group = null;
}
if (null === $group) {
$groupedChoices[$i] = $choice;
} else {
$groupName = (string) $group;
if (!isset($groupedChoices[$groupName])) {
$groupedChoices[$groupName] = array();
}
$groupedChoices[$groupName][$i] = $choice;
}
}
$choices = $groupedChoices;
}
$labels = array();
$this->extractLabels($choices, $labels);
parent::initialize($choices, $labels, $preferredChoices);
}
/**
* Initializes the list with choices.
*
* Safe to be called multiple times. The list is cleared on every call.
*
* @param array|\Traversable $choices The choices to write into the list.
* @param array $labels Ignored.
* @param array $preferredChoices The choices to display with priority.
*/
protected function initialize($choices, array $labels, array $preferredChoices)
{
if (!is_array($choices) && !$choices instanceof \Traversable) {
throw new UnexpectedTypeException($choices, 'array or \\Traversable');
}
if (null !== $this->groupPath) {
$groupedChoices = array();
foreach ($choices as $i => $choice) {
if (is_array($choice)) {
throw new \InvalidArgumentException('You should pass a plain object array (without groups, $code, $previous) when using the "groupPath" option');
}
try {
$group = $this->groupPath->getValue($choice);
} catch (InvalidPropertyException $e) {
// Don't group items whose group property does not exist
// see https://github.com/symfony/symfony/commit/d9b7abb7c7a0f28e0ce970afc5e305dce5dccddf
$group = null;
}
if (null === $group) {
$groupedChoices[$i] = $choice;
} else {
if (!isset($groupedChoices[$group])) {
$groupedChoices[$group] = array();
}
$groupedChoices[$group][$i] = $choice;
}
}
$choices = $groupedChoices;
}
$labels = array();
$this->extractLabels($choices, $labels);
parent::initialize($choices, $labels, $preferredChoices);
}
