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<?php |
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namespace ZfcUser\Authentication\Storage; |
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use Zend\Authentication\Storage; |
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use Zend\Authentication\Storage\StorageInterface; |
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use ZfcUser\Mapper\UserInterface as UserMapper; |
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class Db implements Storage\StorageInterface |
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{ |
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/** |
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* @var StorageInterface |
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*/ |
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protected $storage; |
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/** |
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* @var UserMapper |
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*/ |
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protected $mapper; |
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/** |
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* @var mixed |
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*/ |
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protected $resolvedIdentity; |
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public function __construct(UserMapper $mapper) |
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{ |
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$this->mapper = $mapper; |
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} |
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/** |
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* Returns true if and only if storage is empty |
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* |
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* @throws \Zend\Authentication\Exception\InvalidArgumentException If it is impossible to determine whether |
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* storage is empty or not |
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* @return boolean |
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*/ |
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public function isEmpty() |
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{ |
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if ($this->getStorage()->isEmpty()) { |
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return true; |
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} |
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$identity = $this->getStorage()->read(); |
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if ($identity === null) { |
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$this->clear(); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Returns the contents of storage |
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* |
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* Behavior is undefined when storage is empty. |
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* |
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* @throws \Zend\Authentication\Exception\InvalidArgumentException If reading contents from storage is impossible |
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* @return mixed |
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*/ |
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public function read() |
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{ |
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if (null !== $this->resolvedIdentity) { |
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return $this->resolvedIdentity; |
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} |
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$identity = $this->getStorage()->read(); |
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if (is_int($identity) || is_scalar($identity)) { |
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$identity = $this->getMapper()->findById($identity); |
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} |
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if ($identity) { |
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$this->resolvedIdentity = $identity; |
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} else { |
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$this->resolvedIdentity = null; |
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} |
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return $this->resolvedIdentity; |
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} |
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/** |
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* Writes $contents to storage |
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* |
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* @param mixed $contents |
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* @throws \Zend\Authentication\Exception\InvalidArgumentException If writing $contents to storage is impossible |
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* @return void |
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*/ |
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public function write($contents) |
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{ |
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$this->resolvedIdentity = null; |
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$this->getStorage()->write($contents); |
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} |
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/** |
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* Clears contents from storage |
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* |
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* @throws \Zend\Authentication\Exception\InvalidArgumentException If clearing contents from storage is impossible |
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* @return void |
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*/ |
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public function clear() |
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{ |
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$this->resolvedIdentity = null; |
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$this->getStorage()->clear(); |
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} |
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/** |
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* getStorage |
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* |
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* @return Storage\StorageInterface |
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*/ |
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public function getStorage() |
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{ |
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if (null === $this->storage) { |
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$this->setStorage(new Storage\Session); |
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} |
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return $this->storage; |
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} |
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/** |
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* setStorage |
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* |
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* @param Storage\StorageInterface $storage |
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* @access public |
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* @return Db |
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*/ |
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public function setStorage(Storage\StorageInterface $storage) |
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{ |
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$this->storage = $storage; |
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return $this; |
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} |
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/** |
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* getMapper |
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* |
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* @return UserMapper |
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*/ |
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public function getMapper() |
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{ |
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return $this->mapper; |
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} |
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} |
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ZF-Commons /
ZfcUser
