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<?php |
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/** |
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* This file is a part of nekland places api package |
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* |
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* (c) Nekland <[email protected]> |
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* |
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* For the full license, take a look to the LICENSE file |
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* on the root directory of this project |
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*/ |
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namespace Nekland\PlacesApi\Iterator; |
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use Nekland\PlacesApi\Api\Search; |
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class SearchIterator implements \Iterator |
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{ |
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/** |
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* @var Search |
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*/ |
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private $api; |
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/** |
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* @var array |
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*/ |
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private $body; |
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/** |
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* @var string |
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*/ |
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private $currentPage; |
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/** |
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* @var string |
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*/ |
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private $nextPage; |
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/** |
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* @var integer |
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*/ |
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private $key; |
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public function __construct(Search $api, array $body) |
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{ |
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$this->api = $api; |
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$this->body = $body; |
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$this->key = 0; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Return the current element |
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* @link http://php.net/manual/en/iterator.current.php |
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* @return mixed Can return any type. |
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*/ |
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public function current() |
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{ |
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// Getting the first page |
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if ($this->currentPage === null) { |
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$data = $this->api->searchWithBody($this->body); |
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if (isset($data['next_page_token'])) { |
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$this->nextPage = $data['next_page_token']; |
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} |
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return $data; |
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} |
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// Getting another page |
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$body = array_merge($this->body, ['pagetoken' => $this->currentPage]); |
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$data = $this->api->searchWithBody($body); |
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if (isset($data['next_page_token'])) { |
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$this->nextPage = $data['next_page_token']; |
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} else { |
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$this->nextPage = null; |
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} |
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return $data; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Move forward to next element |
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* @link http://php.net/manual/en/iterator.next.php |
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* @return void Any returned value is ignored. |
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*/ |
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public function next() |
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{ |
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$this->currentPage = $this->nextPage; |
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$this->key++; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Return the key of the current element |
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* @link http://php.net/manual/en/iterator.key.php |
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* @return mixed scalar on success, or null on failure. |
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*/ |
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public function key() |
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{ |
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return $this->key; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Checks if current position is valid |
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* @link http://php.net/manual/en/iterator.valid.php |
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* @return boolean The return value will be casted to boolean and then evaluated. |
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* Returns true on success or false on failure. |
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*/ |
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public function valid() |
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{ |
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// fails only when |
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if ($this->key !== 0 && $this->currentPage === null) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Rewind the Iterator to the first element |
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* @link http://php.net/manual/en/iterator.rewind.php |
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* @return void Any returned value is ignored. |
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*/ |
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public function rewind() |
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{ |
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$this->key = 0; |
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$this->currentPage = null; |
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$this->nextPage = null; |
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} |
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} |
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Nekland /
PlacesApi
