Allow adding location when none exist

map/forms.py

@@ -0,0 +1,23 @@
+from django import forms
+
+from map.models import FriendLocation
+
+
+class LocationForm(forms.ModelForm):
+    class Meta:
+        model = FriendLocation
+        fields = [
+            'latitude',
+            'longitude',
+            'start_date',
+            'end_date',
+            'friend',
+        ]
+        widgets = {'friend': forms.HiddenInput()}
+
+    def __init__(self, request, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.request = request
+
+    def clean_friend(self):
+        return self.request.user

map/urls.py

@@ -5,4 +5,5 @@ from map import views
 urlpatterns = [
     path('', views.MapView.as_view(), name='map'),
     path('change-location/<int:pk>', views.EditLocationView.as_view(), name='change-location'),
+    path('add-location/<int:pk>', views.AddLocationView.as_view(), name='add-location'),
 ]

map/views.py

@@ -5,6 +5,7 @@ from django.urls import reverse_lazy
 from django.views import generic
 
 from map import models
+from map.forms import LocationForm
 from map.mixins import QuickActionsMixin
 
 
@@ -14,13 +15,22 @@ class MapView(LoginRequiredMixin, QuickActionsMixin, generic.ListView):
     template_name = 'map/map.html'
 
     def get_quick_actions(self):
-        return [
-            {
-                'url': reverse_lazy('change-location', kwargs={'pk': self.request.user.location.pk}),
-                'category': 'secondary',
-                'display': f'Change your location'
-            },
-        ]
+        try:
+            return [
+                {
+                    'url': reverse_lazy('change-location', kwargs={'pk': self.request.user.location.pk}),
+                    'category': 'secondary',
+                    'display': f'Change your location'
+                },
+            ]
+        except models.FriendLocation.DoesNotExist:
+            return [
+                {
+                    'url': reverse_lazy('add-location', kwargs={'pk': self.request.user.pk}),
+                    'category': 'secondary',
+                    'display': f'Add your location'
+                },
+            ]
 
 
 class EditLocationView(LoginRequiredMixin, generic.UpdateView):
@@ -44,3 +54,19 @@ class EditLocationView(LoginRequiredMixin, generic.UpdateView):
             return redirect('map')
 
         return super().dispatch(request, *args, **kwargs)
+
+
+class AddLocationView(LoginRequiredMixin, generic.CreateView):
+    model = models.FriendLocation
+    context_object_name = 'location'
+    template_name = 'map/change_location.html'
+    success_url = reverse_lazy('map')
+
+    def get_initial(self):
+        initial = super().get_initial()
+        initial = initial.copy()
+        initial['friend'] = self.request.user
+        return initial
+
+    def get_form(self, form_class=None):
+        return LocationForm(self.request, **self.get_form_kwargs())