AphrontBoolHTTPParameterType.php
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	<?php

	final class AphrontBoolHTTPParameterType
	extends AphrontHTTPParameterType {

	protected function getParameterExists(AphrontRequest $request, $key) {
	if ($request->getExists($key)) {
	return true;
	}

	$checkbox_key = $this->getCheckboxKey($key);
	if ($request->getExists($checkbox_key)) {
	return true;
	}

	return false;
	}

	protected function getParameterValue(AphrontRequest $request, $key) {
	return (bool)$request->getBool($key);
	}

	protected function getParameterTypeName() {
	return 'bool';
	}

	protected function getParameterFormatDescriptions() {
	return array(
	pht('A boolean value (true or false).'),
	);
	}

	protected function getParameterExamples() {
	return array(
	'v=true',
	'v=false',
	'v=1',
	'v=0',
	);
	}

	public function getCheckboxKey($key) {
	return "{$key}.exists";
	}

	}