/**
* {@inheritdoc}
*/
public function hydrate(array $data, $targets, $from)
{
$mappingPosition = $this->provider->getReversedMapping($targets);
$mapping = $this->provider->getMapping($targets);
$entityPool = [];
$idsPool = [];
// Extract objects
foreach ($mappingPosition as $mappedValue => $position) {
$entity = explode('.', $mappedValue)[0];
$attribute = explode('.', $mappedValue)[1];
// If the entity doesn't exist in the pool.
if (!isset($entityPool[$entity])) {
$entityPool[$entity] = [];
$idsPool[$entity] = [];
}
foreach ($data as $index => $row) {
$value = $this->extractValue($row, $mappingPosition, $mappedValue, $mapping[$mappedValue]['type']);
if ($mapping[$mappedValue]['type'] === 'id') {
// If this object id doesn't exist in the entity pool.
if (!isset($entityPool[$entity][$value])) {
$entityPool[$entity][$value] = [];
}
// Save the id at the current cursor position
$idsPool[$entity][$index] = $value;
}
$entityPool[$entity][$idsPool[$entity][$index]][$attribute] = $value;
}
}
// Build relations
foreach ($mapping as $property => $propertyMapping) {
$entity = explode('.', $property)[0];
$attribute = explode('.', $property)[1];
if ($propertyMapping['type'] !== 'relation') {
continue;
}
foreach ($entityPool[$entity] as $id => $data) {
if ($propertyMapping['owner']) {
$entityPool[$entity][$id][$propertyMapping['field']] =& $entityPool[$propertyMapping['entity']][$data[$attribute]];
} else {
if (!isset($entityPool[$propertyMapping['entity']][$data[$attribute]][$propertyMapping['field']])) {
$entityPool[$propertyMapping['entity']][$data[$attribute]][$propertyMapping['field']] = [];
}
$entityPool[$propertyMapping['entity']][$data[$attribute]][$propertyMapping['field']][] =& $entityPool[$entity][$id];
}
}
}
foreach ($entityPool[$from] as $id => $entity) {
$entityPool[$from][$id] = $this->getHydrator($from)->hydrate($entity);
}
return $entityPool[$from];
}