modelData[$this->collection_key]) && is_array($this->modelData[$this->collection_key])) { reset($this->modelData[$this->collection_key]); } } public function current() { $this->coerceType($this->key()); if (is_array($this->modelData[$this->collection_key])) { return current($this->modelData[$this->collection_key]); } } public function key() { if (isset($this->modelData[$this->collection_key]) && is_array($this->modelData[$this->collection_key])) { return key($this->modelData[$this->collection_key]); } } public function next() { return next($this->modelData[$this->collection_key]); } public function valid() { $key = $this->key(); return $key !== null && $key !== false; } public function count() { return count($this->modelData[$this->collection_key]); } public function offsetExists ($offset) { if (!is_numeric($offset)) { return parent::offsetExists($offset); } return isset($this->modelData[$this->collection_key][$offset]); } public function offsetGet($offset) { if (!is_numeric($offset)) { return parent::offsetGet($offset); } $this->coerceType($offset); return $this->modelData[$this->collection_key][$offset]; } public function offsetSet($offset, $value) { if (!is_numeric($offset)) { return parent::offsetSet($offset, $value); } $this->modelData[$this->collection_key][$offset] = $value; } public function offsetUnset($offset) { if (!is_numeric($offset)) { return parent::offsetUnset($offset); } unset($this->modelData[$this->collection_key][$offset]); } private function coerceType($offset) { $typeKey = $this->keyType($this->collection_key); if (isset($this->$typeKey) && !is_object($this->modelData[$this->collection_key][$offset])) { $type = $this->$typeKey; $this->modelData[$this->collection_key][$offset] = new $type($this->modelData[$this->collection_key][$offset]); } } }