private $iNamePhrase = -1;
+ /**
+ * Create an empty search description.
+ *
+ * @param object $oContext Global context to use. Will be inherited by
+ * all derived search objects.
+ */
public function __construct($oContext)
{
$this->oContext = $oContext;
}
+ /**
+ * Get current search rank.
+ *
+ * The higher the search rank the lower the likelyhood that the
+ * search is a correct interpretation of the search query.
+ *
+ * @return integer Search rank.
+ */
public function getRank()
{
return $this->iSearchRank;
}
+ /**
+ * Increase the search rank.
+ *
+ * @param integer $iAddRank Number of ranks to increase.
+ *
+ * @return void
+ */
public function addToRank($iAddRank)
{
$this->iSearchRank += $iAddRank;
return $this->iSearchRank;
}
- public function getPostCode()
- {
- return $this->sPostcode;
- }
-
+ /**
+ * Make this search a POI search.
+ *
+ * In a POI search, objects are not (only) searched by their name
+ * but also by the primary OSM key/value pair (class and type in Nominatim).
+ *
+ * @param integer $iOperator Type of POI search
+ * @param string $sClass Class (or OSM tag key) of POI.
+ * @param string $sType Type (or OSM tag value) of POI.
+ *
+ * @return void
+ */
public function setPoiSearch($iOperator, $sClass, $sType)
{
$this->iOperator = $iOperator;
$this->sType = $sType;
}
- public function isNamedSearch()
- {
- return sizeof($this->aName) > 0 || sizeof($this->aAddress) > 0;
- }
-
- public function isCountrySearch()
- {
- return $this->sCountryCode && sizeof($this->aName) == 0
- && !$this->iOperator && !$this->oContext->hasNearPoint();
- }
-
- public function isPoiSearch()
- {
- return (bool) $this->sClass;
- }
-
+ /**
+ * Check if this might be a full address search.
+ *
+ * @return bool True if the search contains name, address and housenumber.
+ */
public function looksLikeFullAddress()
{
return sizeof($this->aName)
&& preg_match('/[0-9]+/', $this->sHouseNumber);
}
- public function isOperator($iType)
- {
- return $this->iOperator == $iType;
- }
-
- public function hasHouseNumber()
- {
- return (bool) $this->sHouseNumber;
- }
-
- private function poiTable()
- {
- return 'place_classtype_'.$this->sClass.'_'.$this->sType;
- }
-
- public function countryCodeSQL($sVar, $sCountryList)
- {
- if ($this->sCountryCode) {
- return $sVar.' = \''.$this->sCountryCode."'";
- }
- if ($sCountryList) {
- return $sVar.' in ('.$sCountryList.')';
- }
-
- return '';
- }
-
+ /**
+ * Check if any operator is set.
+ *
+ * @return bool True, if this is a special search operation.
+ */
public function hasOperator()
{
return $this->iOperator != Operator::NONE;
}
+ /**
+ * Extract key/value pairs from a query.
+ *
+ * Key/value pairs are recognised if they are of the form [<key>=<value>].
+ * If multiple terms of this kind are found then all terms are removed
+ * but only the first is used for search.
+ *
+ * @param string $sQuery Original query string.
+ *
+ * @return string The query string with the special search patterns removed.
+ */
public function extractKeyValuePairs($sQuery)
{
// Search for terms of kind [<key>=<value>].
return $sQuery;
}
+ /**
+ * Check if the combination of parameters is sensible.
+ *
+ * @param string[] $aCountryCodes List of country codes.
+ *
+ * @return bool True, if the search looks valid.
+ */
public function isValidSearch(&$aCountryCodes)
{
if (!sizeof($this->aName)) {
/////////// Search building functions
+ /**
+ * Derive new searches by adding a full term to the existing search.
+ *
+ * @param mixed[] $aSearchTerm Description of the token.
+ * @param bool $bWordInQuery True, if the normalised version of the word
+ * is contained in the query.
+ * @param bool $bHasPartial True if there are also tokens of partial terms
+ * with the same name.
+ * @param string $sPhraseType Type of phrase the token is contained in.
+ * @param bool $bFirstToken True if the token is at the beginning of the
+ * query.
+ * @param bool $bFirstPhrase True if the token is in the first phrase of
+ * the query.
+ * @param bool $bLastToken True if the token is at the end of the query.
+ * @param integer $iGlobalRank Changable ranking of all searches in the
+ * batch.
+ *
+ * @return SearchDescription[] List of derived search descriptions.
+ */
public function extendWithFullTerm($aSearchTerm, $bWordInQuery, $bHasPartial, $sPhraseType, $bFirstToken, $bFirstPhrase, $bLastToken, &$iGlobalRank)
{
$aNewSearches = array();
return $aNewSearches;
}
- public function extendWithPartialTerm($aSearchTerm, $bStructuredPhrases, $iPhrase, &$aWordFrequencyScores, $aFullTokens)
+ /**
+ * Derive new searches by adding a partial term to the existing search.
+ *
+ * @param mixed[] $aSearchTerm Description of the token.
+ * @param bool $bStructuredPhrases True if the search is structured.
+ * @param integer $iPhrase Number of the phrase the token is in.
+ * @param array[] $aFullTokens List of full term tokens with the
+ * same name.
+ *
+ * @return SearchDescription[] List of derived search descriptions.
+ */
+ public function extendWithPartialTerm($aSearchTerm, $bStructuredPhrases, $iPhrase, $aFullTokens)
{
// Only allow name terms.
if (!(isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])) {
&& sizeof($this->aName)
&& strpos($aSearchTerm['word_token'], ' ') === false
) {
- if ($aWordFrequencyScores[$iWordID] < CONST_Max_Word_Frequency) {
+ if ($aSearchTerm['search_name_count'] + 1 < CONST_Max_Word_Frequency) {
$oSearch = clone $this;
$oSearch->iSearchRank++;
$oSearch->aAddress[$iWordID] = $iWordID;
if (preg_match('#^[0-9]+$#', $aSearchTerm['word_token'])) {
$oSearch->iSearchRank += 2;
}
- if ($aWordFrequencyScores[$iWordID] < CONST_Max_Word_Frequency) {
+ if ($aSearchTerm['search_name_count'] + 1 < CONST_Max_Word_Frequency) {
$oSearch->aName[$iWordID] = $iWordID;
} else {
$oSearch->aNameNonSearch[$iWordID] = $iWordID;
/////////// Query functions
- public function queryCountry(&$oDB, $sViewboxSQL)
+ /**
+ * Query database for places that match this search.
+ *
+ * @param object $oDB Database connection to use.
+ * @param mixed[] $aWordFrequencyScores Number of times tokens appears
+ * overall in a planet database.
+ * @param mixed[] $aExactMatchCache Saves number of exact matches.
+ * @param integer $iMinRank Minimum address rank to restrict
+ * search to.
+ * @param integer $iMaxRank Maximum address rank to restrict
+ * search to.
+ * @param integer $iLimit Maximum number of results.
+ *
+ * @return mixed[] An array with two fields: IDs contains the list of
+ * matching place IDs and houseNumber the houseNumber
+ * if appicable or -1 if not.
+ */
+ public function query(&$oDB, &$aWordFrequencyScores, &$aExactMatchCache, $iMinRank, $iMaxRank, $iLimit)
+ {
+ $aPlaceIDs = array();
+ $iHousenumber = -1;
+
+ if ($this->sCountryCode
+ && !sizeof($this->aName)
+ && !$this->iOperator
+ && !$this->sClass
+ && !$this->oContext->hasNearPoint()
+ ) {
+ // Just looking for a country - look it up
+ if (4 >= $iMinRank && 4 <= $iMaxRank) {
+ $aPlaceIDs = $this->queryCountry($oDB);
+ }
+ } elseif (!sizeof($this->aName) && !sizeof($this->aAddress)) {
+ // Neither name nor address? Then we must be
+ // looking for a POI in a geographic area.
+ if ($this->oContext->isBoundedSearch()) {
+ $aPlaceIDs = $this->queryNearbyPoi($oDB, $iLimit);
+ }
+ } elseif ($this->iOperator == Operator::POSTCODE) {
+ // looking for postcode
+ $aPlaceIDs = $this->queryPostcode($oDB, $iLimit);
+ } else {
+ // Ordinary search:
+ // First search for places according to name and address.
+ $aNamedPlaceIDs = $this->queryNamedPlace(
+ $oDB,
+ $aWordFrequencyScores,
+ $iMinRank,
+ $iMaxRank,
+ $iLimit
+ );
+
+ if (sizeof($aNamedPlaceIDs)) {
+ foreach ($aNamedPlaceIDs as $aRow) {
+ $aPlaceIDs[] = $aRow['place_id'];
+ $aExactMatchCache[$aRow['place_id']] = $aRow['exactmatch'];
+ }
+ }
+
+ //now search for housenumber, if housenumber provided
+ if ($this->sHouseNumber && sizeof($aPlaceIDs)) {
+ $aResult = $this->queryHouseNumber($oDB, $aPlaceIDs, $iLimit);
+
+ if (sizeof($aResult)) {
+ $iHousenumber = $aResult['iHouseNumber'];
+ $aPlaceIDs = $aResult['aPlaceIDs'];
+ } elseif (!$this->looksLikeFullAddress()) {
+ $aPlaceIDs = array();
+ }
+ }
+
+ // finally get POIs if requested
+ if ($this->sClass && sizeof($aPlaceIDs)) {
+ $aPlaceIDs = $this->queryPoiByOperator($oDB, $aPlaceIDs, $iLimit);
+ }
+ }
+
+ if (CONST_Debug) {
+ echo "<br><b>Place IDs:</b> ";
+ var_Dump($aPlaceIDs);
+ }
+
+ if (sizeof($aPlaceIDs) && $this->sPostcode) {
+ $sSQL = 'SELECT place_id FROM placex';
+ $sSQL .= ' WHERE place_id in ('.join(',', $aPlaceIDs).')';
+ $sSQL .= " AND postcode = '".$this->sPostcode."'";
+ if (CONST_Debug) var_dump($sSQL);
+ $aFilteredPlaceIDs = chksql($oDB->getCol($sSQL));
+ if ($aFilteredPlaceIDs) {
+ $aPlaceIDs = $aFilteredPlaceIDs;
+ if (CONST_Debug) {
+ echo "<br><b>Place IDs after postcode filtering:</b> ";
+ var_Dump($aPlaceIDs);
+ }
+ }
+ }
+
+ return array('IDs' => $aPlaceIDs, 'houseNumber' => $iHousenumber);
+ }
+
+
+ private function queryCountry(&$oDB)
{
$sSQL = 'SELECT place_id FROM placex ';
$sSQL .= "WHERE country_code='".$this->sCountryCode."'";
$sSQL .= ' AND rank_search = 4';
- if ($sViewboxSQL) {
- $sSQL .= " AND ST_Intersects($sViewboxSQL, geometry)";
+ if ($this->oContext->bViewboxBounded) {
+ $sSQL .= ' AND ST_Intersects('.$this->oContext->sqlViewboxSmall.', geometry)';
}
$sSQL .= " ORDER BY st_area(geometry) DESC LIMIT 1";
return chksql($oDB->getCol($sSQL));
}
- public function queryNearbyPoi(&$oDB, $sCountryList, $sViewboxSQL, $sViewboxCentreSQL, $sExcludeSQL, $iLimit)
+ private function queryNearbyPoi(&$oDB, $iLimit)
{
if (!$this->sClass) {
return array();
$sSQL = 'SELECT count(*) FROM pg_tables WHERE tablename = \''.$sPoiTable."'";
if (chksql($oDB->getOne($sSQL))) {
$sSQL = 'SELECT place_id FROM '.$sPoiTable.' ct';
- if ($sCountryList) {
+ if ($this->oContext->sqlCountryList) {
$sSQL .= ' JOIN placex USING (place_id)';
}
if ($this->oContext->hasNearPoint()) {
$sSQL .= ' WHERE '.$this->oContext->withinSQL('ct.centroid');
- } else {
- $sSQL .= " WHERE ST_Contains($sViewboxSQL, ct.centroid)";
- }
- if ($sCountryList) {
- $sSQL .= " AND country_code in ($sCountryList)";
+ } elseif ($this->oContext->bViewboxBounded) {
+ $sSQL .= ' WHERE ST_Contains('.$this->oContext->sqlViewboxSmall.', ct.centroid)';
}
- if ($sExcludeSQL) {
- $sSQL .= ' AND place_id not in ('.$sExcludeSQL.')';
+ if ($this->oContext->sqlCountryList) {
+ $sSQL .= ' AND country_code in '.$this->oContext->sqlCountryList;
}
- if ($sViewboxCentreSQL) {
- $sSQL .= " ORDER BY ST_Distance($sViewboxCentreSQL, ct.centroid) ASC";
+ $sSQL .= $this->oContext->excludeSQL(' AND place_id');
+ if ($this->oContext->sqlViewboxCentre) {
+ $sSQL .= ' ORDER BY ST_Distance(';
+ $sSQL .= $this->oContext->sqlViewboxCentre.', ct.centroid) ASC';
} elseif ($this->oContext->hasNearPoint()) {
$sSQL .= ' ORDER BY '.$this->oContext->distanceSQL('ct.centroid').' ASC';
}
$sSQL .= 'class=\''.$this->sClass."' and type='".$this->sType."'";
$sSQL .= ' AND '.$this->oContext->withinSQL('geometry');
$sSQL .= ' AND linked_place_id is null';
- if ($sCountryList) {
- $sSQL .= " AND country_code in ($sCountryList)";
+ if ($this->oContext->sqlCountryList) {
+ $sSQL .= ' AND country_code in '.$this->oContext->sqlCountryList;
}
$sSQL .= ' ORDER BY '.$this->oContext->distanceSQL('centroid')." ASC";
$sSQL .= " LIMIT $iLimit";
return array();
}
- public function queryPostcode(&$oDB, $sCountryList, $iLimit)
+ private function queryPostcode(&$oDB, $iLimit)
{
$sSQL = 'SELECT p.place_id FROM location_postcode p ';
}
$sSQL .= "p.postcode = '".reset($this->aName)."'";
- $sCountryTerm = $this->countryCodeSQL('p.country_code', $sCountryList);
- if ($sCountryTerm) {
- $sSQL .= ' AND '.$sCountryTerm;
- }
+ $sSQL .= $this->countryCodeSQL(' AND p.country_code');
+ $sSQL .= $this->oContext->excludeSQL(' AND p.place_id');
$sSQL .= " LIMIT $iLimit";
if (CONST_Debug) var_dump($sSQL);
return chksql($oDB->getCol($sSQL));
}
- public function queryNamedPlace(&$oDB, $aWordFrequencyScores, $sCountryList, $iMinAddressRank, $iMaxAddressRank, $sExcludeSQL, $sViewboxSmall, $sViewboxLarge, $iLimit)
+ private function queryNamedPlace(&$oDB, $aWordFrequencyScores, $iMinAddressRank, $iMaxAddressRank, $iLimit)
{
$aTerms = array();
$aOrder = array();
}
}
- $sCountryTerm = $this->countryCodeSQL('country_code', $sCountryList);
+ $sCountryTerm = $this->countryCodeSQL('country_code');
if ($sCountryTerm) {
$aTerms[] = $sCountryTerm;
}
}
}
+ $sExcludeSQL = $this->oContext->excludeSQL('place_id');
if ($sExcludeSQL) {
- $aTerms[] = 'place_id not in ('.$sExcludeSQL.')';
+ $aTerms[] = $sExcludeSQL;
}
- if ($sViewboxSmall) {
- $aTerms[] = 'centroid && '.$sViewboxSmall;
+ if ($this->oContext->bViewboxBounded) {
+ $aTerms[] = 'centroid && '.$this->oContext->sqlViewboxSmall;
}
if ($this->oContext->hasNearPoint()) {
} else {
$sImportanceSQL = '(CASE WHEN importance = 0 OR importance IS NULL THEN 0.75-(search_rank::float/40) ELSE importance END)';
}
- if ($sViewboxSmall) {
- $sImportanceSQL .= " * CASE WHEN ST_Contains($sViewboxSmall, centroid) THEN 1 ELSE 0.5 END";
- }
- if ($sViewboxLarge) {
- $sImportanceSQL .= " * CASE WHEN ST_Contains($sViewboxLarge, centroid) THEN 1 ELSE 0.5 END";
- }
+ $sImportanceSQL .= $this->oContext->viewboxImportanceSQL('centroid');
$aOrder[] = "$sImportanceSQL DESC";
if (sizeof($this->aFullNameAddress)) {
return array();
}
-
- public function queryHouseNumber(&$oDB, $aRoadPlaceIDs, $sExcludeSQL, $iLimit)
+ private function queryHouseNumber(&$oDB, $aRoadPlaceIDs, $iLimit)
{
$sPlaceIDs = join(',', $aRoadPlaceIDs);
$sSQL = 'SELECT place_id FROM placex ';
$sSQL .= 'WHERE parent_place_id in ('.$sPlaceIDs.')';
$sSQL .= " AND transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
- if ($sExcludeSQL) {
- $sSQL .= ' AND place_id not in ('.$sExcludeSQL.')';
- }
+ $sSQL .= $this->oContext->excludeSQL(' AND place_id');
$sSQL .= " LIMIT $iLimit";
if (CONST_Debug) var_dump($sSQL);
$sSQL .= " or interpolationtype='all') and ";
$sSQL .= $iHousenumber.">=startnumber and ";
$sSQL .= $iHousenumber."<=endnumber";
-
- if ($sExcludeSQL) {
- $sSQL .= ' AND place_id not in ('.$sExcludeSQL.')';
- }
+ $sSQL .= $this->oContext->excludeSQL(' AND place_id');
$sSQL .= " limit $iLimit";
if (CONST_Debug) var_dump($sSQL);
$sSQL = 'SELECT place_id FROM location_property_aux';
$sSQL .= ' WHERE parent_place_id in ('.$sPlaceIDs.')';
$sSQL .= " AND housenumber = '".$this->sHouseNumber."'";
- if ($sExcludeSQL) {
- $sSQL .= " AND place_id not in ($sExcludeSQL)";
- }
+ $sSQL .= $this->oContext->excludeSQL(' AND place_id');
$sSQL .= " limit $iLimit";
if (CONST_Debug) var_dump($sSQL);
$sSQL .= " or interpolationtype='all') and ";
$sSQL .= $iHousenumber.">=startnumber and ";
$sSQL .= $iHousenumber."<=endnumber";
-
- if ($sExcludeSQL) {
- $sSQL .= ' AND place_id not in ('.$sExcludeSQL.')';
- }
+ $sSQL .= $this->oContext->excludeSQL(' AND place_id');
$sSQL .= " limit $iLimit";
if (CONST_Debug) var_dump($sSQL);
}
- public function queryPoiByOperator(&$oDB, $aParentIDs, $sExcludeSQL, $iLimit)
+ private function queryPoiByOperator(&$oDB, $aParentIDs, $iLimit)
{
$sPlaceIDs = join(',', $aParentIDs);
$aClassPlaceIDs = array();
$sSQL .= " AND class='".$this->sClass."' ";
$sSQL .= " AND type='".$this->sType."'";
$sSQL .= " AND linked_place_id is null";
+ $sSQL .= $this->oContext->excludeSQL(' AND place_id');
$sSQL .= " ORDER BY rank_search ASC ";
$sSQL .= " LIMIT $iLimit";
$sSQL .= " WHERE ST_Contains('$sPlaceGeom', l.centroid)";
}
- if ($sExcludeSQL) {
- $sSQL .= ' AND l.place_id not in ('.$sExcludeSQL.')';
- }
+ $sSQL .= $this->oContext->excludeSQL(' AND l.place_id');
$sSQL .= 'limit 300) i ';
if ($sOrderBySQL) {
$sSQL .= 'order by order_term asc';
$sSQL .= " AND ST_DWithin(l.geometry, f.centroid, $fRange)";
$sSQL .= " AND l.class='".$this->sClass."'";
$sSQL .= " AND l.type='".$this->sType."'";
- if ($sExcludeSQL) {
- $sSQL .= " AND l.place_id not in (".$sExcludeSQL.")";
- }
+ $sSQL .= $this->oContext->excludeSQL(' AND l.place_id');
if ($sOrderBySQL) {
$sSQL .= "ORDER BY orderterm ASC";
}
return $aClassPlaceIDs;
}
+ private function poiTable()
+ {
+ return 'place_classtype_'.$this->sClass.'_'.$this->sType;
+ }
+
+ private function countryCodeSQL($sVar)
+ {
+ if ($this->sCountryCode) {
+ return $sVar.' = \''.$this->sCountryCode."'";
+ }
+ if ($this->oContext->sqlCountryList) {
+ return $sVar.' in '.$this->oContext->sqlCountryList;
+ }
+
+ return '';
+ }
/////////// Sort functions
projects / nominatim.git / blobdiff