testing

LiskRawMigrationIterator.php
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			<?php

			final class LiskRawMigrationIterator extends PhutilBufferedIterator {

			private $conn;
			private $table;
			private $cursor;
			private $column = 'id';

			public function __construct(AphrontDatabaseConnection $conn, $table) {
			$this->conn = $conn;
			$this->table = $table;
			}

			protected function didRewind() {
			$this->cursor = 0;
			}

			public function key() {
			return idx($this->current(), $this->column);
			}

			protected function loadPage() {
			$page = queryfx_all(
			$this->conn,
			'SELECT * FROM %T WHERE %C > %d ORDER BY ID ASC LIMIT %d',
			$this->table,
			$this->column,
			$this->cursor,
			$this->getPageSize());

			if ($page) {
			$this->cursor = idx(last($page), $this->column);
			}

			return $page;
			}

			}