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62 lines
1.5 KiB
PHP
62 lines
1.5 KiB
PHP
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<?php
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namespace Stripe\Util;
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class AutoPagingIterator implements \Iterator
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{
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private $lastId = null;
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private $page = null;
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private $pageOffset = 0;
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private $params = array();
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public function __construct($collection, $params)
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{
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$this->page = $collection;
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$this->params = $params;
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}
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public function rewind()
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{
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// Actually rewinding would require making a copy of the original page.
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}
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public function current()
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{
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$item = current($this->page->data);
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$this->lastId = $item !== false ? $item['id'] : null;
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return $item;
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}
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public function key()
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{
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return key($this->page->data) + $this->pageOffset;
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}
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public function next()
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{
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$item = next($this->page->data);
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if ($item === false) {
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// If we've run out of data on the current page, try to fetch another one
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// and increase the offset the new page would start at
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$this->pageOffset += count($this->page->data);
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if ($this->page['has_more']) {
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$this->params = array_merge(
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$this->params ? $this->params : array(),
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array('starting_after' => $this->lastId)
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);
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$this->page = $this->page->all($this->params);
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} else {
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return false;
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}
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}
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}
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public function valid()
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{
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$key = key($this->page->data);
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$valid = ($key !== null && $key !== false);
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return $valid;
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}
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}
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