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Collection.php
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276 lines (237 loc) · 6.46 KB
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<?php
namespace UniMapper\Entity;
use UniMapper\Entity;
use UniMapper\Exception;
use UniMapper\Validator;
class Collection implements \ArrayAccess, \Countable, \IteratorAggregate,
\JsonSerializable
{
/** @var string $entityClass */
private $entityClass;
/** @var array $data Data container */
private $data = [];
/** @var array */
private $changes = [
Entity::CHANGE_ATTACH => [],
Entity::CHANGE_DETACH => [],
Entity::CHANGE_ADD => [],
Entity::CHANGE_REMOVE => []
];
/**
* @param string|Entity $name Entity name, class or entity object
* @param mixed $values
*
* @throws Exception\InvalidArgumentException
*/
public function __construct($name, $values = null)
{
$reflection = Entity\Reflection::load($name);
$this->entityClass = $reflection->getClassName();
if ($values) {
if (Validator::isTraversable($values)) {
foreach ($values as $index => $value) {
if ($value instanceof Entity) {
$this->offsetSet($index, $value);
} else {
$this->data[$index] = $reflection->createEntity($value);
}
}
} else {
throw new Exception\InvalidArgumentException(
"Values must be traversable data!",
$values
);
}
}
}
private function _validateEntity($entity, $primaryRequired = false)
{
if (!$entity instanceof $this->entityClass) {
throw new Exception\InvalidArgumentException(
"Expected instance of entity " . $this->entityClass . "!",
$entity
);
}
if ($primaryRequired) {
$primaryName = $entity::getReflection()->getPrimaryProperty()->getName();
if (empty($entity->{$primaryName})) {
throw new Exception\InvalidArgumentException(
"Primary value can not be empty!"
);
}
}
}
public function attach(Entity $entity)
{
$this->_validateEntity($entity, true);
$primary = $entity->{$entity::getReflection()->getPrimaryProperty()->getName()};
if (!in_array($primary, $this->changes[Entity::CHANGE_ATTACH], true)) {
array_push($this->changes{Entity::CHANGE_ATTACH}, $primary);
}
}
public function detach(Entity $entity)
{
$this->_validateEntity($entity, true);
$primary = $entity->{$entity::getReflection()->getPrimaryProperty()->getName()};
if (!in_array($primary, $this->changes[Entity::CHANGE_DETACH], true)) {
array_push($this->changes{Entity::CHANGE_DETACH}, $primary);
}
}
public function add(Entity $entity)
{
$this->_validateEntity($entity);
$this->changes[Entity::CHANGE_ADD][] = $entity;
}
public function remove(Entity $entity)
{
$this->_validateEntity($entity, true);
$primary = $entity->{$entity::getReflection()->getPrimaryProperty()->getName()};
if (!in_array($primary, $this->changes[Entity::CHANGE_REMOVE], true)) {
array_push($this->changes{Entity::CHANGE_REMOVE}, $primary);
}
}
public function getChanges()
{
return $this->changes;
}
/**
* Get changed data only
*
* @return array
*/
public function getData()
{
return $this->data;
}
/**
* Get entity class
*
* @return string
*/
public function getEntityClass()
{
return $this->entityClass;
}
/**
* Get entity reflection
*
* @return Reflection
*
* @deprecated
*/
public function getReflection()
{
return Entity\Reflection::load($this->entityClass);
}
/**
* Returns an iterator over all items.
*
* @return \ArrayIterator
*/
public function getIterator()
{
return new \ArrayIterator($this->data);
}
/**
* Returns items count.
*
* @return integer
*/
public function count()
{
return count($this->data);
}
/**
* Replaces or appends a item.
*
* @param integer $offset Index
* @param Entity $value Value
*/
public function offsetSet($offset, $value)
{
$this->_validateEntity($value);
if (is_null($offset)) {
$this->data[] = $value;
} else {
$this->data[$offset] = $value;
}
}
/**
* Returns an item.
*
* @param integer $key Key
*
* @return Entity|null
*/
public function offsetGet($key)
{
if (isset($this->data[$key])) {
return $this->data[$key];
}
return null;
}
/**
* Determines whether a item exists.
*
* @param integer $key Key
*
* @return boolean
*/
public function offsetExists($key)
{
return isset($this->data[$key]) || array_key_exists($key, $this->data);
}
/**
* Removes the element at the specified position in this data.
*
* @param integer $offset Offset
*/
public function offsetUnset($offset)
{
unset($this->data[$offset]);
}
/**
* Convert collection to an array
*
* @param boolean $nesting Convert nested entities and collections too
*
* @return array
*/
public function toArray($nesting = false)
{
return array_map(function (Entity $entity) use ($nesting) {
return $entity->toArray($nesting);
}, $this->data);
}
/**
* Convert to json representation of entity collection
*
* @return array
*/
public function jsonSerialize()
{
return array_map(function (Entity $entity) {
return $entity->jsonSerialize();
}, $this->data);
}
/**
* Get entity by primary value
*
* @param mixed $value
*
* @return Entity|false
*/
public function getByPrimary($value)
{
foreach ($this->data as $entity) {
$primaryPropertyName = $entity::getReflection()
->getPrimaryProperty()
->getName();
$primaryValue = $entity->{$primaryPropertyName};
if ($primaryValue === $value && $primaryValue !== null) {
return $entity;
}
}
return false;
}
}