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<?php |
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/** |
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* @package domain |
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* @subpackage models |
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* @author Marius Orcsik <[email protected]> |
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* @created 2015-04-15 |
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*/ |
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namespace vsc\domain\models; |
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trait IteratorTrait { |
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/** |
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* @var string |
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*/ |
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protected $_current; |
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/** |
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* @param string $sKey |
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* @return bool |
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*/ |
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abstract public function offsetExists($sKey); |
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/** |
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* @param string $sOffset |
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*/ |
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protected function setCurrent($sOffset) { |
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if ($this->offsetExists($sOffset)) |
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$this->_current = $sOffset; |
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} |
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/** |
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* @return string |
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*/ |
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protected function getCurrent() { |
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return $this->_current; |
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} |
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/** |
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* @param string $sOffset |
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* @param mixed $mValue |
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* @return mixed |
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*/ |
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public abstract function __set($sOffset, $mValue); |
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/** |
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* @param string $sOffset |
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* @return mixed |
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*/ |
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public abstract function __get($sOffset); |
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/** |
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* @return int |
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*/ |
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public abstract function count(); |
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/** |
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* @return array |
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*/ |
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private function getPropertyNames() { |
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$ret = []; |
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$mirror = new \ReflectionClass($this); |
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foreach ($mirror->getProperties() as $mirrorProperty) { |
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$name = $mirrorProperty->getName(); |
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if ($name == '_current') continue; |
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$ret[] = $name; |
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} |
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return $ret; |
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} |
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/** |
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* Iterator interface |
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* @return mixed |
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*/ |
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public function current() |
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{ |
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if (is_null($this->_current)) { |
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$this->rewind(); |
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} |
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return $this->__get($this->_current); |
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} |
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/** |
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* @return string |
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*/ |
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public function key() |
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{ |
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if (is_null($this->_current)) { |
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$this->rewind(); |
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} |
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return $this->_current; |
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} |
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/** |
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* @return void |
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*/ |
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public function next() |
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{ |
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$aKeys = $this->getPropertyNames(); |
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$iCurrent = array_search($this->_current, $aKeys); |
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if ($iCurrent + 1 < $this->count()) { |
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$this->_current = $aKeys[$iCurrent + 1]; |
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} else { |
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$this->_current = null; |
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} |
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} |
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/** |
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* @return void |
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*/ |
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public function rewind() |
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{ |
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$aKeys = $this->getPropertyNames(); |
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if (is_array($aKeys) && isset($aKeys[0])) { |
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$this->_current = $aKeys[0]; |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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2 |
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public function valid() |
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{ |
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$aKeys = $this->getPropertyNames(); |
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if (in_array($this->_current, $aKeys)) { |
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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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mariusor /
vsc
