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https://github.com/osm-search/Nominatim.git
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106 lines
3.7 KiB
Python
106 lines
3.7 KiB
Python
"""
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Helper classes for filling the place table.
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"""
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import random
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import string
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class PlaceColumn:
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""" Helper class to collect contents from a behave table row and
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insert it into the place table.
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"""
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def __init__(self, context):
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self.columns = {'admin_level' : 15}
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self.context = context
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self.geometry = None
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def add_row(self, row, force_name):
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""" Parse the content from the given behave row as place column data.
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"""
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for name, value in zip(row.headings, row.cells):
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self._add(name, value)
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assert 'osm_type' in self.columns, "osm column missing"
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if force_name and 'name' not in self.columns:
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self._add_hstore('name', 'name',
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''.join(random.choice(string.printable)
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for _ in range(int(random.random()*30))))
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return self
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def _add(self, key, value):
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if hasattr(self, '_set_key_' + key):
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getattr(self, '_set_key_' + key)(value)
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elif key.startswith('name+'):
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self._add_hstore('name', key[5:], value)
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elif key.startswith('extra+'):
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self._add_hstore('extratags', key[6:], value)
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elif key.startswith('addr+'):
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self._add_hstore('address', key[5:], value)
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elif key in ('name', 'address', 'extratags'):
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self.columns[key] = eval('{' + value + '}')
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else:
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assert key in ('class', 'type'), "Unknown column '{}'.".format(key)
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self.columns[key] = None if value == '' else value
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def _set_key_name(self, value):
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self._add_hstore('name', 'name', value)
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def _set_key_osm(self, value):
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assert value[0] in 'NRW' and value[1:].isdigit(), \
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"OSM id needs to be of format <NRW><id>."
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self.columns['osm_type'] = value[0]
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self.columns['osm_id'] = int(value[1:])
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def _set_key_admin(self, value):
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self.columns['admin_level'] = int(value)
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def _set_key_housenr(self, value):
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if value:
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self._add_hstore('address', 'housenumber', value)
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def _set_key_postcode(self, value):
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if value:
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self._add_hstore('address', 'postcode', value)
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def _set_key_street(self, value):
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if value:
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self._add_hstore('address', 'street', value)
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def _set_key_addr_place(self, value):
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if value:
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self._add_hstore('address', 'place', value)
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def _set_key_country(self, value):
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if value:
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self._add_hstore('address', 'country', value)
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def _set_key_geometry(self, value):
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self.geometry = self.context.osm.parse_geometry(value, self.context.scene)
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assert self.geometry is not None, "Bad geometry: {}".format(value)
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def _add_hstore(self, column, key, value):
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if column in self.columns:
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self.columns[column][key] = value
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else:
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self.columns[column] = {key: value}
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def db_insert(self, cursor):
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""" Insert the collected data into the database.
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"""
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if self.columns['osm_type'] == 'N' and self.geometry is None:
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pt = self.context.osm.grid_node(self.columns['osm_id'])
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if pt is None:
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pt = (random.random()*360 - 180, random.random()*180 - 90)
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self.geometry = "ST_SetSRID(ST_Point(%f, %f), 4326)" % pt
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else:
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assert self.geometry is not None, "Geometry missing"
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query = 'INSERT INTO place ({}, geometry) values({}, {})'.format(
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','.join(self.columns.keys()),
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','.join(['%s' for x in range(len(self.columns))]),
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self.geometry)
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cursor.execute(query, list(self.columns.values()))
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