+@when(u'updating osm data')
+def update_from_osm_file(context):
+ """
+ Update a database previously populated with 'loading osm data'.
+ Needs to run indexing on the existing data first to yield the correct result.
+
+ The data is expected as attached text in OPL format.
+ """
+ context.nominatim.run_setup_script('create-functions', 'create-partition-functions')
+
+ cur = context.db.cursor()
+ cur.execute("""insert into placex (osm_type, osm_id, class, type, name,
+ admin_level, housenumber, street, addr_place, isin, postcode,
+ country_code, extratags, geometry) select * from place""")
+ cur.execute(
+ """insert into location_property_osmline
+ (osm_id, interpolationtype, street, addr_place,
+ postcode, calculated_country_code, linegeo)
+ SELECT osm_id, housenumber, street, addr_place,
+ postcode, country_code, geometry from place
+ WHERE class='place' and type='houses' and osm_type='W'
+ and ST_GeometryType(geometry) = 'ST_LineString'""")
+ context.db.commit()
+ context.nominatim.run_setup_script('index', 'index-noanalyse')
+ context.nominatim.run_setup_script('create-functions', 'create-partition-functions',
+ 'enable-diff-updates')
+
+ # create a OSM file in /tmp and import it
+ with tempfile.NamedTemporaryFile(dir='/tmp', suffix='.opl', delete=False) as fd:
+ fname = fd.name
+ for line in context.text.splitlines():
+ if line.startswith('n') and line.find(' x') < 0:
+ line += " x%d y%d" % (random.random() * 360 - 180,
+ random.random() * 180 - 90)
+ fd.write(line.encode('utf-8'))
+ fd.write(b'\n')
+
+ context.nominatim.run_update_script(import_diff=fname)
+ os.remove(fname)