mirror of
https://github.com/osm-search/Nominatim.git
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114 lines
3.3 KiB
PHP
114 lines
3.3 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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require_once(CONST_LibDir.'/SpecialSearchOperator.php');
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/**
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* A word token describing a place type.
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*/
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class SpecialTerm
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{
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/// Database word id, if applicable.
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private $iId;
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/// Class (or OSM tag key) of the place to look for.
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private $sClass;
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/// Type (or OSM tag value) of the place to look for.
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private $sType;
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/// Relationship of the operator to the object (see Operator class).
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private $iOperator;
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public function __construct($iID, $sClass, $sType, $iOperator)
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{
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$this->iId = $iID;
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$this->sClass = $sClass;
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$this->sType = $sType;
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$this->iOperator = $iOperator;
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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->hasOperator()
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&& $oPosition->isPhrase('')
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&& ($this->iOperator != \Nominatim\Operator::NONE
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|| (!$oSearch->hasAddress() && !$oSearch->hasHousenumber() && !$oSearch->hasCountry()));
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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, $oPosition)
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{
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$iSearchCost = 2;
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$iOp = $this->iOperator;
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if ($iOp == \Nominatim\Operator::NONE) {
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if ($oSearch->hasName() || $oSearch->getContext()->isBoundedSearch()) {
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$iOp = \Nominatim\Operator::NAME;
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} else {
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$iOp = \Nominatim\Operator::NEAR;
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$iSearchCost += 2;
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}
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} elseif (!$oPosition->isFirstToken() && !$oPosition->isLastToken()) {
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$iSearchCost += 2;
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}
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if ($oSearch->hasHousenumber()) {
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$iSearchCost ++;
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}
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$oNewSearch = $oSearch->clone($iSearchCost);
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$oNewSearch->setPoiSearch($iOp, $this->sClass, $this->sType);
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return array($oNewSearch);
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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' => 'special term',
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'Info' => array(
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'class' => $this->sClass,
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'type' => $this->sType,
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'operator' => \Nominatim\Operator::toString($this->iOperator)
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)
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);
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}
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public function debugCode()
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{
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return 'S';
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}
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}
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