Mix-ins that provide the actual commands for the indexer for various indexing
tasks.
"""
+import functools
+
+import psycopg2.extras
+
# pylint: disable=C0111
-class RankRunner:
- """ Returns SQL commands for indexing one rank within the placex table.
+class AbstractPlacexRunner:
+ """ Returns SQL commands for indexing of the placex table.
"""
+ SELECT_SQL = 'SELECT place_id FROM placex'
- def __init__(self, rank):
+ def __init__(self, rank, analyzer):
self.rank = rank
+ self.analyzer = analyzer
+
+
+ @staticmethod
+ @functools.lru_cache(maxsize=1)
+ def _index_sql(num_places):
+ return """ UPDATE placex
+ SET indexed_status = 0, address = v.addr, token_info = v.ti
+ FROM (VALUES {}) as v(id, addr, ti)
+ WHERE place_id = v.id
+ """.format(','.join(["(%s, %s::hstore, %s::jsonb)"] * num_places))
+
+
+ @staticmethod
+ def get_place_details(worker, ids):
+ worker.perform("""SELECT place_id, (placex_prepare_update(placex)).*
+ FROM placex WHERE place_id IN %s""",
+ (tuple((p[0] for p in ids)), ))
+
+
+ def index_places(self, worker, places):
+ values = []
+ for place in places:
+ values.extend((place[x] for x in ('place_id', 'address')))
+ values.append(psycopg2.extras.Json(self.analyzer.process_place(place)))
+
+ worker.perform(self._index_sql(len(places)), values)
+
+
+class RankRunner(AbstractPlacexRunner):
+ """ Returns SQL commands for indexing one rank within the placex table.
+ """
def name(self):
return "rank {}".format(self.rank)
""".format(self.rank)
def sql_get_objects(self):
- return """SELECT place_id FROM placex
- WHERE indexed_status > 0 and rank_address = {}
- ORDER BY geometry_sector""".format(self.rank)
+ return """{} WHERE indexed_status > 0 and rank_address = {}
+ ORDER BY geometry_sector
+ """.format(self.SELECT_SQL, self.rank)
- @staticmethod
- def sql_index_place(ids):
- return "UPDATE placex SET indexed_status = 0 WHERE place_id IN ({})"\
- .format(','.join((str(i) for i in ids)))
-
-class BoundaryRunner:
+class BoundaryRunner(AbstractPlacexRunner):
""" Returns SQL commands for indexing the administrative boundaries
of a certain rank.
"""
- def __init__(self, rank):
- self.rank = rank
-
def name(self):
return "boundaries rank {}".format(self.rank)
""".format(self.rank)
def sql_get_objects(self):
- return """SELECT place_id FROM placex
- WHERE indexed_status > 0 and rank_search = {}
- and class = 'boundary' and type = 'administrative'
- ORDER BY partition, admin_level
- """.format(self.rank)
-
- @staticmethod
- def sql_index_place(ids):
- return "UPDATE placex SET indexed_status = 0 WHERE place_id IN ({})"\
- .format(','.join((str(i) for i in ids)))
+ return """{} WHERE indexed_status > 0 and rank_search = {}
+ and class = 'boundary' and type = 'administrative'
+ ORDER BY partition, admin_level
+ """.format(self.SELECT_SQL, self.rank)
class InterpolationRunner:
location_property_osmline.
"""
+ def __init__(self, analyzer):
+ self.analyzer = analyzer
+
+
@staticmethod
def name():
return "interpolation lines (location_property_osmline)"
@staticmethod
def sql_get_objects():
- return """SELECT place_id FROM location_property_osmline
+ return """SELECT place_id
+ FROM location_property_osmline
WHERE indexed_status > 0
ORDER BY geometry_sector"""
+
+ @staticmethod
+ def get_place_details(worker, ids):
+ worker.perform("""SELECT place_id, get_interpolation_address(address, osm_id) as address
+ FROM location_property_osmline WHERE place_id IN %s""",
+ (tuple((p[0] for p in ids)), ))
+
+
@staticmethod
- def sql_index_place(ids):
- return """UPDATE location_property_osmline
- SET indexed_status = 0 WHERE place_id IN ({})
- """.format(','.join((str(i) for i in ids)))
+ @functools.lru_cache(maxsize=1)
+ def _index_sql(num_places):
+ return """ UPDATE location_property_osmline
+ SET indexed_status = 0, address = v.addr, token_info = v.ti
+ FROM (VALUES {}) as v(id, addr, ti)
+ WHERE place_id = v.id
+ """.format(','.join(["(%s, %s::hstore, %s::jsonb)"] * num_places))
+
+
+ def index_places(self, worker, places):
+ values = []
+ for place in places:
+ values.extend((place[x] for x in ('place_id', 'address')))
+ values.append(psycopg2.extras.Json(self.analyzer.process_place(place)))
+
+ worker.perform(self._index_sql(len(places)), values)
+
class PostcodeRunner:
ORDER BY country_code, postcode"""
@staticmethod
- def sql_index_place(ids):
- return """UPDATE location_postcode SET indexed_status = 0
- WHERE place_id IN ({})
- """.format(','.join((str(i) for i in ids)))
+ def index_places(worker, ids):
+ worker.perform(""" UPDATE location_postcode SET indexed_status = 0
+ WHERE place_id IN ({})
+ """.format(','.join((str(i[0]) for i in ids))))