testing

PhabricatorQueryOrderItem.php
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			<?php

			/**
			* Structural class representing one item in an order vector.
			*
			* See @{class:PhabricatorQueryOrderVector} for discussion of order vectors.
			* This represents one item in an order vector, like "id". When combined with
			* the other items in the vector, a complete ordering (like "name, id") is
			* described.
			*
			* Construct an item using @{method:newFromScalar}:
			*
			* $item = PhabricatorQueryOrderItem::newFromScalar('id');
			*
			* This class is primarily internal to the query infrastructure, and most
			* application code should not need to interact with it directly.
			*/
			final class PhabricatorQueryOrderItem extends Phobject {

			private $orderKey;
			private $isReversed;

			private function __construct() {
			// <private>
			}

			public static function newFromScalar($scalar) {
			// If the string is something like "-id", strip the "-" off and mark it
			// as reversed.
			$is_reversed = false;
			if (!strncmp($scalar, '-', 1)) {
			$is_reversed = true;
			$scalar = substr($scalar, 1);
			}

			$item = new PhabricatorQueryOrderItem();
			$item->orderKey = $scalar;
			$item->isReversed = $is_reversed;

			return $item;
			}

			public function getIsReversed() {
			return $this->isReversed;
			}

			public function getOrderKey() {
			return $this->orderKey;
			}

			public function getAsScalar() {
			if ($this->getIsReversed()) {
			$prefix = '-';
			} else {
			$prefix = '';
			}

			return $prefix.$this->getOrderKey();
			}

			}