refactor: Use django form

src/fellchensammlung/forms.py

@@ -126,3 +126,12 @@ class ModerationActionForm(forms.ModelForm):
 class CustomRegistrationForm(RegistrationForm):
     class Meta(RegistrationForm.Meta):
         model = User
+
+
+def _get_distances():
+    return {i: i for i in [10, 20, 50, 100, 200, 500]}
+
+
+class AdoptionNoticeSearchForm(forms.Form):
+    postcode = forms.CharField(max_length=20, label=_("Postleitzahl"))
+    max_distance = forms.ChoiceField(choices=_get_distances, label=_("Max. Distanz"))

src/fellchensammlung/templates/fellchensammlung/search.html

@@ -6,17 +6,7 @@
         {% csrf_token %}
         <input type="hidden" name="longitude" maxlength="200" id="longitude">
         <input type="hidden" name="latitude" maxlength="200" id="latitude">
-        <label for="postcode">{% translate "Postleitzahl" %}
+        {{ search_form.as_p }}
-        </label>
-        <input type="text" name="postcode" maxlength="200" class="textinput form-control" required="" id="postcode">
-        <select name="max_distance" class="select custom-select" required="" id="id_max_distance">
-            <option value="" selected="">---------</option>
-            <option value="25">20km</option>
-            <option value="50">50km</option>
-            <option value="100">100km</option>
-            <option value="200">200km</option>
-            <option value="500">500km</option>
-        </select>
         <input type="submit" value="Search" name="search">
     </form>
     {% include "fellchensammlung/lists/list-adoption-notices.html" %}

src/fellchensammlung/views.py

@@ -13,7 +13,8 @@ from notfellchen import settings
 from fellchensammlung import logger
 from fellchensammlung.models import AdoptionNotice, Text, Animal, Rule, Image, Report, ModerationAction, \
     Member, Location
-from .forms import AdoptionNoticeForm, ImageForm, ReportAdoptionNoticeForm, CommentForm, ReportCommentForm, AnimalForm
+from .forms import AdoptionNoticeForm, ImageForm, ReportAdoptionNoticeForm, CommentForm, ReportCommentForm, AnimalForm, \
+    AdoptionNoticeSearchForm
 from .models import Language, Announcement
 from .tools.geo import GeoAPI
 
@@ -89,6 +90,7 @@ def animal_detail(request, animal_id):
 
 def search(request):
     if request.method == 'POST':
+        search_form = AdoptionNoticeSearchForm(request.POST)
         max_distance = int(request.POST.get('max_distance'))
         if max_distance == "":
             max_distance = None
@@ -97,11 +99,11 @@ def search(request):
 
         latest_adoption_list = AdoptionNotice.objects.order_by("-created_at")
         adoption_notices_in_distance = [a for a in latest_adoption_list if a.in_distance(search_position, max_distance)]
-        context = {"adoption_notices": adoption_notices_in_distance}
+        context = {"adoption_notices": adoption_notices_in_distance, "search_form": search_form}
-        return render(request, 'fellchensammlung/search.html', context=context)
     else:
         latest_adoption_list = AdoptionNotice.objects.order_by("-created_at")
-        context = {"adoption_notices": latest_adoption_list}
+        search_form = AdoptionNoticeSearchForm()
+        context = {"adoption_notices": latest_adoption_list, "search_form": search_form}
     return render(request, 'fellchensammlung/search.html', context=context)