DifferentialRevisionHasParentRelationship.php
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	<?php

	final class DifferentialRevisionHasParentRelationship
	extends DifferentialRevisionRelationship {

	const RELATIONSHIPKEY = 'revision.has-parent';

	public function getEdgeConstant() {
	return DifferentialRevisionDependsOnRevisionEdgeType::EDGECONST;
	}

	protected function getActionName() {
	return pht('Edit Parent Revisions');
	}

	protected function getActionIcon() {
	return 'fa-chevron-circle-up';
	}

	public function canRelateObjects($src, $dst) {
	return ($dst instanceof DifferentialRevision);
	}

	public function shouldAppearInActionMenu() {
	return false;
	}

	public function getDialogTitleText() {
	return pht('Edit Parent Revisions');
	}

	public function getDialogHeaderText() {
	return pht('Current Parent Revisions');
	}

	public function getDialogButtonText() {
	return pht('Save Parent Revisions');
	}

	protected function newRelationshipSource() {
	return new DifferentialRevisionRelationshipSource();
	}

	}