Adapting django version

Readme.md

@@ -1,6 +1,6 @@
 # lostplaces-backend
 
-lostplaces-backend is a django (3.x) based webproject. It once wants to become a software which allows a group of urban explorers to manage, document and share the locations of lost places while not exposing too much / any information to the public.
+lostplaces-backend is a django (4.x) based webproject. It once wants to become a software which allows a group of urban explorers to manage, document and share the locations of lost places while not exposing too much / any information to the public.
 
 The software is currently in early development status, neither scope, datamodel(s) nor features are finalized yet. Therefore we would not recommend to download or install this piece of software anywhere - except your local django dev server.
 

django_lostplaces/lostplaces/models/place.py

@@ -1,6 +1,6 @@
 import os
 import datetime
-from math import round, ceil
+from math import ceil
 
 from django.db import models
 from django.urls import reverse
@@ -78,20 +78,20 @@ class Place(Submittable, Taggable, Mapable):
     # Get center position of LP-geocoordinates.
     def average_latlon(cls, place_list):
         amount = len(place_list)
-        # Init fill values to prevent None
-        # China Corner in Münster
-        # Where I almost always eat lunch
-        # (Does'nt help losing wheight, tho)
-        longitude = 7.6295628132604385
-        latitude = 51.961922091398904
 
         if amount > 0:
+            latitude = 0
+            longitude = 0
+
             for place in place_list:
                 longitude += place.longitude
                 latitude += place.latitude
-            return {'latitude':latitude / amount, 'longitude': longitude / amount}
-
-        return {'latitude': latitude, 'longitude': longitude}
+            return {'latitude': latitude / amount, 'longitude': longitude / amount}
+        else:
+            # Location of China Corner in Münster
+            # Where I almost always eat lunch
+            # (Does'nt help losing wheight, tho)
+            return {'latitude': 51.961922091398904, 'longitude': 7.6295628132604385}
 
     def calculate_place_level(self):
         if self.placevotings.count() == 0:
@@ -112,11 +112,14 @@ class Place(Submittable, Taggable, Mapable):
         accuaries = [];
 
         for vote in self.placevotings.all():
-            vote_age = timezone.now() - vote.created_when;
+            vote_age = timezone.now() - vote.submitted_when;
             accuracy = 100 - (100 / (place_age / vote_age))
             accuaries.append(accuracy)
         
-        return ceil(sum(accuaries) / len(accuaries))
+        if len(accuaries) > 0:
+            return ceil(sum(accuaries) / len(accuaries))
+        else:
+            return 0
 
     def __str__(self):
         return self.name
@@ -216,7 +219,7 @@ def auto_delete_file_on_change(sender, instance, **kwargs):
         old_file.delete(save=False)
 
 
-class PlaceVoting(PlaceAsset, Expireable):
+class PlaceVoting(PlaceAsset):
     vote = models.IntegerField(choices=PLACE_LEVELS)
     
     def get_human_readable_level(self):

django_lostplaces/lostplaces/tests/models/test_place_model.py

@@ -1,13 +1,14 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+import datetime
 from django.test import TestCase
 from django.db import models
 
 from django.contrib.auth.models import User
 from django.utils import timezone
 
-from lostplaces.models import Place
+from lostplaces.models import Place, PlaceVoting
 from lostplaces.tests.models import ModelTestCase
 
 class PlaceTestCase(ModelTestCase):
@@ -106,12 +107,12 @@ class PlaceTestCase(ModelTestCase):
         an empty list
         '''
         avg_latlon = Place.average_latlon([])
-        self.assertEqual(avg_latlon['latitude'], 0,
+        self.assertEqual(avg_latlon['latitude'], 51.961922091398904,
             msg='%s: (no places) average latitude missmatch' % (
                 self.model.__name__
             )
         )
-        self.assertEqual(avg_latlon['longitude'], 0,
+        self.assertEqual(avg_latlon['longitude'], 7.6295628132604385,
             msg='%s: (no places) average longitude missmatch' % (
                 self.model.__name__
             )
@@ -126,29 +127,167 @@ class PlaceTestCase(ModelTestCase):
         )
 
     def test_level_calculation(self):
-        place = self.place
-        explorer = place.submitted_by
+        explorer = self.place.submitted_by
 
         PlaceVoting.objects.create(
             submitted_by=explorer,
-            place=place,
-            vote=5,
-            expires_when=timezone.now()+self.delta
+            place=self.place,
+            vote=5
         )
         PlaceVoting.objects.create(
             submitted_by=explorer,
-            place=place,
-            vote=2,
-            expires_when=timezone.now()+self.delta
+            place=self.place,
+            vote=2
         )
         PlaceVoting.objects.create(
             submitted_by=explorer,
-            place=place,
-            vote=4,
-            expires_when=timezone.now()+self.delta
+            place=self.place,
+            vote=4
         )
 
+        self.place.calculate_place_level()
+
         self.assertEqual(
             4,
-            place.calculate_place_level()
+            self.place.level,
+            msg='Expecting the place level to be 4'
         )
+
+    def test_level_calculation_no_votes(self):
+        self.place.calculate_place_level()
+        self.assertEqual(
+            5,
+            self.place.level,
+            msg='Expecting the default place level to be 5'
+        )
+
+    def test_level_mid_accuracy(self):
+        explorer = self.place.submitted_by
+        six_month_ago = datetime.timedelta(days=180)
+        self.place.submitted_when = timezone.now() - six_month_ago
+
+        votings = [
+            {
+                'date': timezone.now() - datetime.timedelta(days=170),
+                'vote': 5
+            },
+            {
+                'date': timezone.now() - datetime.timedelta(days=23),
+                'vote': 2
+            },
+            {
+                'date': timezone.now() - datetime.timedelta(days=1),
+                'vote': 4
+            }
+        ]
+
+        for vote in votings:
+            voting = PlaceVoting.objects.create(
+                submitted_by=explorer,
+                place=self.place,
+                vote= vote['vote']
+            )
+            voting.submitted_when = vote['date']
+            voting.save()
+
+        self.assertEqual(
+            65,
+            self.place.calculate_voting_accuracy()
+        )
+
+    def test_level_high_accuracy(self):
+        explorer = self.place.submitted_by
+        six_month_ago = datetime.timedelta(days=180)
+        self.place.submitted_when = timezone.now() - six_month_ago
+
+        votings = [
+            {
+                'date': timezone.now() - datetime.timedelta(days=9),
+                'vote': 5
+            },
+            {
+                'date': timezone.now() - datetime.timedelta(days=14),
+                'vote': 2
+            },
+            {
+                'date': timezone.now() - datetime.timedelta(days=0),
+                'vote': 4
+            }
+        ]
+
+        for vote in votings:
+            voting = PlaceVoting.objects.create(
+                submitted_by=explorer,
+                place=self.place,
+                vote= vote['vote']
+            )
+            voting.submitted_when = vote['date']
+            voting.save()
+
+        self.assertEqual(
+            96,
+            self.place.calculate_voting_accuracy()
+        )
+
+    def test_level_low_accuracy(self):
+        explorer = self.place.submitted_by
+        six_month_ago = datetime.timedelta(days=180)
+        self.place.submitted_when = timezone.now() - six_month_ago
+
+        votings = [
+            {
+                'date': timezone.now() - datetime.timedelta(days=177),
+                'vote': 5
+            },
+            {
+                'date': timezone.now() - datetime.timedelta(days=150),
+                'vote': 2
+            },
+            {
+                'date': timezone.now() - datetime.timedelta(days=100),
+                'vote': 4
+            }
+        ]
+
+        for vote in votings:
+            voting = PlaceVoting.objects.create(
+                submitted_by=explorer,
+                place=self.place,
+                vote= vote['vote']
+            )
+            voting.submitted_when = vote['date']
+            voting.save()
+
+        self.assertEqual(
+            21,
+            self.place.calculate_voting_accuracy()
+        )
+
+    def test_level_accuracy_zero_timedelta(self):
+        explorer = self.place.submitted_by
+        six_month_ago = datetime.timedelta(days=180)
+        self.place.submitted_when = timezone.now() - six_month_ago
+
+        votings = [
+            {
+                'date': timezone.now() - datetime.timedelta(days=0),
+                'vote': 4
+            }
+        ]
+
+        for vote in votings:
+            voting = PlaceVoting.objects.create(
+                submitted_by=explorer,
+                place=self.place,
+                vote= vote['vote']
+            )
+            voting.submitted_when = vote['date']
+            voting.save()
+
+        self.assertEqual(
+            100,
+            self.place.calculate_voting_accuracy(),
+            msg='Expecting the accurcy to be 100% when the vote is 0 time units old'
+        )
+
+        

django_lostplaces/lostplaces/views/place_views.py

@@ -221,12 +221,11 @@ class PlaceVoteView(IsEligibleToSeePlaceMixin, View):
             voting = PlaceVoting.objects.create(
                 submitted_by=explorer,
                 place=place,
-                vote=vote,
-                expires_when=timezone.now()+self.delta
+                vote=vote
             )
             messages.success(self.request, _('Vote submitted'))
         else:
-            voting.expires_when=timezone.now()+self.delta
+            voting.submitted_when = timezone.now()
             voting.vote = vote
             messages.success(self.request, _('Your vote has been update'))