refactor: Move search into class

src/fellchensammlung/forms.py

@@ -182,7 +182,7 @@ class CustomRegistrationForm(RegistrationForm):
 
 
 class AdoptionNoticeSearchForm(forms.Form):
-    location = forms.CharField(max_length=20, label=_("Stadt"), required=False)
+    location_string = forms.CharField(max_length=20, label=_("Stadt"), required=False)
     max_distance = forms.ChoiceField(choices=DistanceChoices, initial=DistanceChoices.ONE_HUNDRED, label=_("Suchradius"))
     sex = forms.ChoiceField(choices=SexChoicesWithAll, label=_("Geschlecht"), required=False,
                             initial=SexChoicesWithAll.ALL)

src/fellchensammlung/tools/search.py

@@ -0,0 +1,58 @@
+import logging
+
+from .geo import GeoAPI
+from ..forms import AdoptionNoticeSearchForm
+from ..models import SearchSubscription, AdoptionNotice, BaseNotification, SexChoicesWithAll, Location
+
+
+def notify_search_subscribers(new_adoption_notice: AdoptionNotice):
+    for search_subscription in SearchSubscription.objects.all():
+        BaseNotification.objects.create(user=search_subscription.owner)
+
+
+class Search():
+    def __init__(self):
+        self.sex = None
+        self.area_search = None
+        self.max_distance = None
+        self.location_string = None
+        self.search_position = None
+        self.location = None
+        self.place_not_found = False  # Indicates that a location was given but could not be geocoded
+        self.search_form = None
+
+    def get_adoption_notices(self):
+        adoptions = AdoptionNotice.objects.order_by("-created_at")
+        adoptions = [adoption for adoption in adoptions if adoption.is_active]
+        if self.sex is not None and self.sex != SexChoicesWithAll.ALL:
+            adoptions = [adoption for adoption in adoptions if self.sex in adoption.sexes]
+        if self.area_search and not self.place_not_found:
+            adoptions = [a for a in adoptions if a.in_distance(self.search_position, self.max_distance)]
+
+        return adoptions
+
+    def search_from_request(self, request):
+        if request.method == 'POST':
+            self.search_form = AdoptionNoticeSearchForm(request.POST)
+            self.search_form.is_valid()
+            self.sex = self.search_form.cleaned_data["sex"]
+            if self.search_form.cleaned_data["location_string"] != "" and self.search_form.cleaned_data["max_distance"] != "":
+                self.area_search = True
+                self.location_string = self.search_form.cleaned_data["location_string"]
+                self.max_distance = int(self.search_form.cleaned_data["max_distance"])
+
+                geo_api = GeoAPI()
+                self.search_position = geo_api.get_coordinates_from_query(self.location_string)
+                if self.search_position is None:
+                    self.place_not_found = True
+        else:
+            self.search_form = AdoptionNoticeSearchForm()
+
+    def subscribe(self, user):
+        logging.info(f"{user} subscribed to search")
+
+        location = Location.get_location_from_string(self.location_string)
+        SearchSubscription.objects.create(owner=user,
+                                          location=location,
+                                          sex=self.sex,
+                                          radius=self.max_distance)

src/fellchensammlung/views.py

@@ -28,6 +28,8 @@ from .tools.admin import clean_locations, get_unchecked_adoption_notices, deacti
 from .tasks import add_adoption_notice_location
 from rest_framework.authtoken.models import Token
 
+from .tools.search import Search
+
 
 def user_is_trust_level_or_above(user, trust_level=TrustLevel.MODERATOR):
     return user.is_authenticated and user.trust_level >= trust_level
@@ -169,37 +171,17 @@ def animal_detail(request, animal_id):
 
 
 def search(request):
-    latest_adoption_list = AdoptionNotice.objects.order_by("-created_at")
-    active_adoptions = [adoption for adoption in latest_adoption_list if adoption.is_active]
+    search = Search()
+    search.search_from_request(request)
     if request.method == 'POST':
+        if "subscribe_to_search" in request.POST:
+            # Make sure user is logged in
+            if not request.user.is_authenticated:
+                return redirect(f"{settings.LOGIN_URL}?next={request.path}")
 
-        sex = request.POST.get("sex")
-        if sex != SexChoicesWithAll.ALL:
-            active_adoptions = [adoption for adoption in active_adoptions if sex in adoption.sexes]
-
-        search_form = AdoptionNoticeSearchForm(request.POST)
-        search_form.is_valid()
-        if search_form.cleaned_data["location"] == "":
-            adoption_notices_in_distance = active_adoptions
-            place_not_found = False
-        else:
-            max_distance = int(request.POST.get('max_distance'))
-            if max_distance == "":
-                max_distance = None
-            geo_api = GeoAPI()
-            search_position = geo_api.get_coordinates_from_query(request.POST['location'])
-            if search_position is None:
-                place_not_found = True
-                adoption_notices_in_distance = active_adoptions
-            else:
-                place_not_found = False
-                adoption_notices_in_distance = [a for a in active_adoptions if a.in_distance(search_position, max_distance)]
-
-        context = {"adoption_notices": adoption_notices_in_distance, "search_form": search_form,
-                   "place_not_found": place_not_found}
-    else:
-        search_form = AdoptionNoticeSearchForm()
-        context = {"adoption_notices": active_adoptions, "search_form": search_form}
+            search.subscribe(request.user)
+    context = {"adoption_notices": search.get_adoption_notices(), "search_form": search.search_form,
+               "place_not_found": search.place_not_found}
     return render(request, 'fellchensammlung/search.html', context=context)