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