PhabricatorSearchTokenizerField.php
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	<?php

	abstract class PhabricatorSearchTokenizerField
	extends PhabricatorSearchField {

	protected function getDefaultValue() {
	return array();
	}

	protected function getValueFromRequest(AphrontRequest $request, $key) {
	return $this->getListFromRequest($request, $key);
	}

	public function getValueForQuery($value) {
	return $this->newDatasource()
	->setViewer($this->getViewer())
	->evaluateTokens($value);
	}

	protected function newControl() {
	return id(new AphrontFormTokenizerControl())
	->setDatasource($this->newDatasource());
	}


	abstract protected function newDatasource();


	protected function getUsersFromRequest(
	AphrontRequest $request,
	$key,
	array $allow_types = array()) {
	$list = $this->getListFromRequest($request, $key);

	$phids = array();
	$names = array();
	$allow_types = array_fuse($allow_types);
	$user_type = PhabricatorPeopleUserPHIDType::TYPECONST;
	foreach ($list as $item) {
	$type = phid_get_type($item);
	if ($type == $user_type) {
	$phids[] = $item;
	} else if (isset($allow_types[$type])) {
	$phids[] = $item;
	} else {
	if (PhabricatorTypeaheadDatasource::isFunctionToken($item)) {
	// If this is a function, pass it through unchanged; we'll evaluate
	// it later.
	$phids[] = $item;
	} else {
	$names[] = $item;
	}
	}
	}

	if ($names) {
	$users = id(new PhabricatorPeopleQuery())
	->setViewer($this->getViewer())
	->withUsernames($names)
	->execute();
	foreach ($users as $user) {
	$phids[] = $user->getPHID();
	}
	$phids = array_unique($phids);
	}

	return $phids;
	}

	}