PhabricatorBoolConfigType.php
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	<?php

	final class PhabricatorBoolConfigType
	extends PhabricatorTextConfigType {

	const TYPEKEY = 'bool';

	protected function newCanonicalValue(
	PhabricatorConfigOption $option,
	$value) {

	if (!preg_match('/^(true\|false)\z/', $value)) {
	throw $this->newException(
	pht(
	'Value for option "%s" of type "%s" must be either '.
	'"true" or "false".',
	$option->getKey(),
	$this->getTypeKey()));
	}

	return ($value === 'true');
	}

	public function newDisplayValue(
	PhabricatorConfigOption $option,
	$value) {

	if ($value) {
	return 'true';
	} else {
	return 'false';
	}
	}

	public function validateStoredValue(
	PhabricatorConfigOption $option,
	$value) {

	if (!is_bool($value)) {
	throw $this->newException(
	pht(
	'Option "%s" is of type "%s", but the configured value is not '.
	'a boolean.',
	$option->getKey(),
	$this->getTypeKey()));
	}
	}

	protected function newControl(PhabricatorConfigOption $option) {
	$bool_map = $option->getBoolOptions();

	$map = array(
	'' => pht('(Use Default)'),
	) + array(
	'true' => idx($bool_map, 0),
	'false' => idx($bool_map, 1),
	);

	return id(new AphrontFormSelectControl())
	->setOptions($map);
	}
	}