testing

DifferentialDraft.php
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			<?php

			final class DifferentialDraft extends DifferentialDAO {

			protected $objectPHID;
			protected $authorPHID;
			protected $draftKey;

			protected function getConfiguration() {
			return array(
			self::CONFIG_COLUMN_SCHEMA => array(
			'draftKey' => 'text64',
			),
			self::CONFIG_KEY_SCHEMA => array(
			'key_unique' => array(
			'columns' => array('objectPHID', 'authorPHID', 'draftKey'),
			'unique' => true,
			),
			),
			) + parent::getConfiguration();
			}

			public static function markHasDraft(
			$author_phid,
			$object_phid,
			$draft_key) {
			try {
			id(new DifferentialDraft())
			->setObjectPHID($object_phid)
			->setAuthorPHID($author_phid)
			->setDraftKey($draft_key)
			->save();
			} catch (AphrontDuplicateKeyQueryException $ex) {
			// no worries
			}
			}

			public static function deleteHasDraft(
			$author_phid,
			$object_phid,
			$draft_key) {
			$draft = id(new DifferentialDraft())->loadOneWhere(
			'objectPHID = %s AND authorPHID = %s AND draftKey = %s',
			$object_phid,
			$author_phid,
			$draft_key);
			if ($draft) {
			$draft->delete();
			}
			}

			public static function deleteAllDrafts(
			$author_phid,
			$object_phid) {

			$drafts = id(new DifferentialDraft())->loadAllWhere(
			'objectPHID = %s AND authorPHID = %s',
			$object_phid,
			$author_phid);
			foreach ($drafts as $draft) {
			$draft->delete();
			}
			}

			}