1# (c) 2018-2020 

2# MPIB <https://www.mpib-berlin.mpg.de/>, 

3# MPI-CBS <https://www.cbs.mpg.de/>, 

4# MPIP <http://www.psych.mpg.de/> 

5# 

6# This file is part of Castellum. 

7# 

8# Castellum is free software; you can redistribute it and/or modify it 

9# under the terms of the GNU Affero General Public License as published 

10# by the Free Software Foundation; either version 3 of the License, or 

11# (at your option) any later version. 

12# 

13# Castellum is distributed in the hope that it will be useful, but 

14# WITHOUT ANY WARRANTY; without even the implied warranty of 

15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 

16# Affero General Public License for more details. 

17# 

18# You should have received a copy of the GNU Affero General Public 

19# License along with Castellum. If not, see 

20# <http://www.gnu.org/licenses/>. 

21 

22import logging 

23 

24from django.conf import settings 

25 

26from geopy.exc import GeopyError 

27from geopy.geocoders import Nominatim 

28 

29logger = logging.getLogger(__name__) 

30 

31 

32def geocode_address(address): 

33 query = { 

34 'street': ' '.join([ 

35 address.street, 

36 address.house_number, 

37 ]), 

38 'city': address.city, 

39 'country': address.country, 

40 'postalcode': address.zip_code, 

41 } 

42 try: 

43 geolocator = Nominatim(**settings.NOMINATIM) 

44 return geolocator.geocode(query) 

45 except GeopyError: 

46 logger.info('Geocoding failed for subject with pk "%s"' % address.contact.subject_id) 

47 return None