1 <?php

2 namespace TYPO3\CMS\Extbase\Persistence\Generic;

3 

20 class LazyLoadingProxy implements \Iterator, \TYPO3\CMS\Extbase\Persistence\Generic\LoadingStrategyInterface {

21 

26  protected $dataMapper;

27 

33  private $parentObject;

34 

40  private $propertyName;

41 

47  private $fieldValue;

48 

56  public function __construct($parentObject, $propertyName, $fieldValue) {

57  $this->parentObject = $parentObject;

58  $this->propertyName = $propertyName;

59  $this->fieldValue = $fieldValue;

60  }

61 

67  public function _loadRealInstance() {

68  // this check safeguards against a proxy being activated multiple times

69  // usually that does not happen, but if the proxy is held from outside

70  // it's parent... the result would be weird.

71  if ($this->parentObject->_getProperty($this->propertyName) instanceof \TYPO3\CMS\Extbase\Persistence\Generic\LazyLoadingProxy) {

72  $objects = $this->dataMapper->fetchRelated($this->parentObject, $this->propertyName, $this->fieldValue, FALSE, FALSE);

73  $propertyValue = $this->dataMapper->mapResultToPropertyValue($this->parentObject, $this->propertyName, $objects);

74  $this->parentObject->_setProperty($this->propertyName, $propertyValue);

75  $this->parentObject->_memorizeCleanState($this->propertyName);

76  return $propertyValue;

77  } else {

78  return $this->parentObject->_getProperty($this->propertyName);

79  }

80  }

81 

89  public function __call($methodName, $arguments) {

90  $realInstance = $this->_loadRealInstance();

91  if (!is_object($realInstance)) {

92  return NULL;

93  }

94  return call_user_func_array(array($realInstance, $methodName), $arguments);

95  }

96 

103  public function __get($propertyName) {

104  $realInstance = $this->_loadRealInstance();

105  return $realInstance->{$propertyName};

106  }

107 

115  public function __set($propertyName, $value) {

116  $realInstance = $this->_loadRealInstance();

117  $realInstance->{$propertyName} = $value;

118  }

119 

126  public function __isset($propertyName) {

127  $realInstance = $this->_loadRealInstance();

128  return isset($realInstance->{$propertyName});

129  }

130 

137  public function __unset($propertyName) {

138  $realInstance = $this->_loadRealInstance();

139  unset($realInstance->{$propertyName});

140  }

141 

147  public function __toString() {

148  $realInstance = $this->_loadRealInstance();

149  return $realInstance->__toString();

150  }

151 

157  public function current() {

158  $realInstance = $this->_loadRealInstance();

159  return current($realInstance);

160  }

161 

167  public function key() {

168  $realInstance = $this->_loadRealInstance();

169  return key($realInstance);

170  }

171 

177  public function next() {

178  $realInstance = $this->_loadRealInstance();

179  next($realInstance);

180  }

181 

187  public function rewind() {

188  $realInstance = $this->_loadRealInstance();

189  reset($realInstance);

190  }

191 

197  public function valid() {

198  return $this->current() !== FALSE;

199  }

200 }