Nominatim/lib-php/TokenPostcode.php
2022-05-05 01:04:47 +02:00

107 lines
3.2 KiB
PHP

<?php
/**
* SPDX-License-Identifier: GPL-2.0-only
*
* This file is part of Nominatim. (https://nominatim.org)
*
* Copyright (C) 2022 by the Nominatim developer community.
* For a full list of authors see the git log.
*/
namespace Nominatim\Token;
/**
* A postcode token.
*/
class Postcode
{
/// Database word id, if available.
private $iId;
/// Full normalized postcode (upper cased).
private $sPostcode;
// Optional country code the postcode belongs to (currently unused).
private $sCountryCode;
public function __construct($iId, $sPostcode, $sCountryCode = '')
{
$this->iId = $iId;
$this->sPostcode = $sPostcode;
$this->sCountryCode = empty($sCountryCode) ? '' : $sCountryCode;
}
public function getId()
{
return $this->iId;
}
/**
* Check if the token can be added to the given search.
* Derive new searches by adding this token to an existing search.
*
* @param object $oSearch Partial search description derived so far.
* @param object $oPosition Description of the token position within
the query.
*
* @return True if the token is compatible with the search configuration
* given the position.
*/
public function isExtendable($oSearch, $oPosition)
{
return !$oSearch->hasPostcode() && $oPosition->maybePhrase('postalcode');
}
/**
* Derive new searches by adding this token to an existing search.
*
* @param object $oSearch Partial search description derived so far.
* @param object $oPosition Description of the token position within
the query.
*
* @return SearchDescription[] List of derived search descriptions.
*/
public function extendSearch($oSearch, $oPosition)
{
$aNewSearches = array();
// If we have structured search or this is the first term,
// make the postcode the primary search element.
if ($oSearch->hasOperator(\Nominatim\Operator::NONE) && $oPosition->isFirstToken()) {
$oNewSearch = $oSearch->clone(1);
$oNewSearch->setPostcodeAsName($this->iId, $this->sPostcode);
$aNewSearches[] = $oNewSearch;
}
// If we have a structured search or this is not the first term,
// add the postcode as an addendum.
if (!$oSearch->hasOperator(\Nominatim\Operator::POSTCODE)
&& ($oPosition->isPhrase('postalcode') || $oSearch->hasName())
) {
$iPenalty = 1;
if (strlen($this->sPostcode) < 4) {
$iPenalty += 4 - strlen($this->sPostcode);
}
$oNewSearch = $oSearch->clone($iPenalty);
$oNewSearch->setPostcode($this->sPostcode);
$aNewSearches[] = $oNewSearch;
}
return $aNewSearches;
}
public function debugInfo()
{
return array(
'ID' => $this->iId,
'Type' => 'postcode',
'Info' => $this->sPostcode.'('.$this->sCountryCode.')'
);
}
public function debugCode()
{
return 'P';
}
}