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tweak postcode search

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Give a preference to left-right reading, i.e <postcode>,<address>
prefers a postcode search while <address>,<postcode> rather does
an address search.

Also exclude non-addressables, countries and state from results when a
postcode is contained in the query.
This commit is contained in:
Sarah Hoffmann
2023-06-20 10:54:04 +02:00
parent 1b50381852
commit d0a1e8e311
5 changed files with 17 additions and 5 deletions
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10
nominatim/api/search/token_assignment.py
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@@ -270,7 +270,12 @@ class _TokenSequence:
if (base.postcode.start == 0 and self.direction != -1)\
or (base.postcode.end == query.num_token_slots() and self.direction != 1):
log().comment('postcode search')
yield dataclasses.replace(base, penalty=self.penalty)
# <address>,<postcode> should give preference to address search
if base.postcode.start == 0:
penalty = self.penalty
else:
penalty = self.penalty + 0.1
yield dataclasses.replace(base, penalty=penalty)
# Postcode or country-only search
if not base.address:
@@ -278,6 +283,9 @@ class _TokenSequence:
log().comment('postcode/country search')
yield dataclasses.replace(base, penalty=self.penalty)
else:
# <postcode>,<address> should give preference to postcode search
if base.postcode and base.postcode.start == 0:
self.penalty += 0.1
# Use entire first word as name
if self.direction != -1:
log().comment('first word = name')