photon: add a stable identifiant (#53984)

passerelle/apps/photon/models.py

@@ -15,10 +15,13 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import datetime
+import hashlib
+import json
 
 from django.contrib.postgres.fields import JSONField
 from django.db import models
 from django.utils import timezone
+from django.utils.encoding import force_bytes
 from django.utils.http import urlencode
 from django.utils.six.moves.urllib import parse as urlparse
 from django.utils.translation import ugettext_lazy as _
@@ -92,8 +95,11 @@ class Photon(BaseResource):
             result['text'] += '%s ' % result['address']['postcode']
         if result['address'].get('city'):
             result['text'] += '%s' % result['address']['city']
+        result['text'] = result['text'].strip()
         result['display_name'] = result['text']
-        result['id'] = data['properties']['osm_id']
+
+        dict_dump = json.dumps(result['address'], sort_keys=True)
+        result['id'] = hashlib.md5(force_bytes(dict_dump)).hexdigest()
         return result
 
     @endpoint(

tests/test_photon.py

@@ -195,7 +195,7 @@ def test_photon_addresses(mocked_get, app, photon):
     assert data['lon'] == '4.8522272'
     assert data['display_name'] == '208, Rue Garibaldi 69003 Lyon 3ème Arrondissement'
     assert data['text'] == '208, Rue Garibaldi 69003 Lyon 3ème Arrondissement'
-    assert data['id'] == 154419
+    assert data['id'] == '2644ca352fdfef476b3f83ee99f0e8e5'
     assert data['address']['city'] == 'Lyon 3ème Arrondissement'
     assert data['address']['postcode'] == '69003'
     assert data['address']['road'] == 'Rue Garibaldi'
@@ -277,7 +277,7 @@ def test_photon_addresses_clean_cache(app, photon, freezer, mock_photon_search):
     assert AddressCacheModel.objects.count() == 2
 
     freezer.move_to(datetime.timedelta(hours=1, seconds=1))
-    app.get('/photon/%s/addresses?id=%s' % (photon.slug, '154419'))
+    app.get('/photon/%s/addresses?id=%s' % (photon.slug, '2644ca352fdfef476b3f83ee99f0e8e5'))
     call_command('cron', 'hourly')
     assert AddressCacheModel.objects.count() == 1