/**
* Returns the model objects corresponding to the given values.
*
* @param array $values
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getChoicesForValues(array $values)
{
if (!$this->loaded) {
if (1 === count($this->identifier)) {
$filterBy = 'filterBy' . current($this->identifier)->getPhpName();
return (array) $this->query->create()->{$filterBy}($values)->find();
}
$this->load();
}
return parent::getChoicesForValues($values);
}
/**
* {@inheritdoc}
*/
public function getChoicesForValues(array $values)
{
if (empty($values)) {
return array();
}
/**
* This performance optimization reflects a common scenario:
* * A simple select of a model entry.
* * The choice option "expanded" is set to false.
* * The current request is the submission of the selected value.
*
* @see \Symfony\Component\Form\Extension\Core\DataTransformer\ChoicesToValuesTransformer::reverseTransform
* @see \Symfony\Component\Form\Extension\Core\DataTransformer\ChoiceToValueTransformer::reverseTransform
*/
if (!$this->loaded) {
if (1 === count($this->identifier)) {
$filterBy = 'filterBy' . current($this->identifier)->getPhpName();
// The initial query is cloned, so all additional filters are applied correctly.
$query = clone $this->query;
$result = (array) $query->{$filterBy}($values)->find();
// Preserve the keys as provided by the values.
$models = array();
foreach ($values as $index => $value) {
foreach ($result as $eachModel) {
if ($value === $this->createValue($eachModel)) {
// Make sure to convert to the right format
$models[$index] = $this->fixChoice($eachModel);
// If all values have been assigned, skip further loops.
unset($values[$index]);
if (0 === count($values)) {
break 2;
}
}
}
}
return $models;
}
}
$this->load();
return parent::getChoicesForValues($values);
}
/**
* Returns the entities corresponding to the given values.
*
* @param array $values
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getChoicesForValues(array $values)
{
if (!$this->loaded) {
// Optimize performance in case we have an entity loader and
// a single-field identifier
if (count($this->identifier) === 1 && $this->entityLoader) {
if (empty($values)) {
return array();
}
return $this->entityLoader->getEntitiesByIds(current($this->identifier), $values);
}
$this->load();
}
return parent::getChoicesForValues($values);
}
/**
* Returns the entities corresponding to the given values.
*
* @param array $values
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getChoicesForValues(array $values)
{
// Performance optimization
// Also prevents the generation of "WHERE id IN ()" queries through the
// entity loader. At least with MySQL and on the development machine
// this was tested on, no exception was thrown for such invalid
// statements, consequently no test fails when this code is removed.
// https://github.com/symfony/symfony/pull/8981#issuecomment-24230557
if (empty($values)) {
return array();
}
if (!$this->loaded) {
// Optimize performance in case we have an entity loader and
// a single-field identifier
if ($this->idAsValue && $this->entityLoader) {
$unorderedEntities = $this->entityLoader->getEntitiesByIds($this->idField, $values);
$entitiesByValue = array();
$entities = array();
// Maintain order and indices from the given $values
// An alternative approach to the following loop is to add the
// "INDEX BY" clause to the Doctrine query in the loader,
// but I'm not sure whether that's doable in a generic fashion.
foreach ($unorderedEntities as $entity) {
$value = $this->fixValue(current($this->getIdentifierValues($entity)));
$entitiesByValue[$value] = $entity;
}
foreach ($values as $i => $value) {
if (isset($entitiesByValue[$value])) {
$entities[$i] = $entitiesByValue[$value];
}
}
return $entities;
}
$this->load();
}
return parent::getChoicesForValues($values);
}
