PhabricatorQueryIterator.php
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	<?php

	final class PhabricatorQueryIterator extends PhutilBufferedIterator {

	private $query;
	private $pager;

	public function __construct(PhabricatorCursorPagedPolicyAwareQuery $query) {
	$this->query = $query;
	}

	protected function didRewind() {
	$this->pager = new AphrontCursorPagerView();
	}

	public function key() {
	return $this->current()->getID();
	}

	protected function loadPage() {
	if (!$this->pager) {
	return array();
	}

	$pager = clone $this->pager;
	$query = clone $this->query;

	$results = $query->executeWithCursorPager($pager);

	// If we got less than a full page of results, this was the last set of
	// results. Throw away the pager so we end iteration.
	if (!$pager->getHasMoreResults()) {
	$this->pager = null;
	} else {
	$this->pager->setAfterID($pager->getNextPageID());
	}

	return $results;
	}

	}