osm-search/Nominatim
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order search results by existance of housenumbers

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When searching for an address with housenumber, include the house
number lookup already when searching in search_name so that we do
not cut away relevant results in cases where there are too many
street pieces.
This commit is contained in:
Sarah Hoffmann 2015-02-02 07:41:28 +01:00
parent 0f84371748
commit cf5ced6618
1 changed files with 9 additions and 1 deletions
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10
lib/Geocode.php
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@ -553,6 +553,8 @@
// sanity check: if the housenumber is not mainly made
// up of numbers, add a penalty
if (preg_match_all("/[^0-9]/", $sToken, $aMatches) > 2) $aSearch['iSearchRank']++;
// also housenumbers should appear in the first or second phrase
if ($iPhrase > 1) $aSearch['iSearchRank'] += 1;
if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
/*
// Fall back to not searching for this item (better than nothing)
@ -1238,6 +1240,12 @@
$aTerms = array();
$aOrder = array();
if ($aSearch['sHouseNumber'])
{
$sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
$aOrder[] = "exists(select place_id from placex where parent_place_id = search_name.place_id and transliteration(housenumber) ~* E'".$sHouseNumberRegex."' limit 1) desc";
}
// TODO: filter out the pointless search terms (2 letter name tokens and less)
// they might be right - but they are just too darned expensive to run
if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
@ -1318,7 +1326,7 @@
$sSQL .= " where ".join(' and ',$aTerms);
$sSQL .= " order by ".join(', ',$aOrder);
if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
$sSQL .= " limit 50";
$sSQL .= " limit 20";
elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
$sSQL .= " limit 1";
else