/**
* Set the base constraints on the relation query.
*
* @return void
*/
public function addConstraints()
{
$parentTable = $this->parentMap->getTable();
$this->setJoin();
if (static::$constraints) {
$farParentKeyName = $this->farParentMap->getKeyName();
$this->query->where($parentTable . '.' . $this->firstKey, '=', $this->farParent->getEntityAttribute($farParentKeyName));
}
}
/**
* Add the Entity primary key if not in requested columns
*
* @param array $columns
* @return array
*/
protected function enforceIdColumn($columns)
{
if (!in_array($this->entityMap->getKeyName(), $columns)) {
$columns[] = $this->entityMap->getKeyName();
}
return $columns;
}
/**
* Check for entity existence in the EntityCache
*
* @return boolean
*/
public function exists()
{
if (!$this->hasPrimaryKeyDefined()) {
$this->exists = false;
} else {
$cache = $this->mapper->getEntityCache();
$key = $this->entityMap->getKeyName();
// Check if we have a cache record for the entity
// which have to be the case.
if ($cache->has($this->entity->getEntityAttribute($key))) {
$this->exists = true;
} else {
$this->exists = false;
}
}
return $this->exists;
}
/**
* Get all of the primary keys for an array of entities.
*
* @param array $entities
* @param string $key
* @return array
*/
protected function getKeys(array $entities, $key = null)
{
if (is_null($key)) {
$key = $this->relatedMap->getKeyName();
}
return array_unique(array_values(array_map(function ($value) use($key) {
return $value->getEntityAttribute($key);
}, $entities)));
}
/**
* Build the Entity(ies)
*
* @param array $results
* @return Mappable|EntityCollection
*/
public function build(array $results)
{
$entities = array();
$prototype = $this->mapper->newInstance();
$keyName = $this->entityMap->getKeyName();
$tmpCache = [];
foreach ($results as $result) {
$instance = clone $prototype;
$resultArray = (array) $result;
$tmpCache[$resultArray[$keyName]] = $resultArray;
// Hydrate any embedded Value Object
$this->hydrateValueObjects($resultArray);
$instance->setEntityAttributes($resultArray);
// Hydrate relation attributes with lazyloading proxies
if (count($this->lazyLoads) > 0) {
$proxies = $this->getLazyLoadingProxies($instance);
$instance->setEntityAttributes($resultArray + $proxies);
}
$entities[] = $instance;
}
$this->mapper->getEntityCache()->add($tmpCache);
return $entities;
}