feat: Allow (un)subscribing without commenting

src/fellchensammlung/forms.py

@@ -142,6 +142,7 @@ class CommentForm(forms.ModelForm):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.helper = FormHelper()
+        self.helper.form_action = "comment"
         self.helper.form_class = 'form-comments'
         self.helper.add_input(Submit('submit', _('Kommentieren'), css_class="btn2"))
 

src/fellchensammlung/templates/fellchensammlung/details/detail_adoption_notice.html

@@ -4,7 +4,23 @@
 
 {% block content %}
     <div class="detail-adoption-notice-header">
-        <h1 class="detail-adoption-notice-header">{{ adoption_notice.name }}</h1>
+        <h1 class="detail-adoption-notice-header">{{ adoption_notice.name }}
+            {% if not is_subscribed %}
+            <form class="notification-card-mark-read" method="post">
+                {% csrf_token %}
+                <input type="hidden" name="action" value="subscribe">
+                <input type="hidden" name="adoption_notice_id" value="{{ adoption_notice.pk }}">
+                <button class="btn2" type="submit" id="submit"><i class="fa-solid fa-bell"></i></button>
+            </form>
+            {% else %}
+            <form class="notification-card-mark-read" method="post">
+                {% csrf_token %}
+                <input type="hidden" name="action" value="unsubscribe">
+                <input type="hidden" name="adoption_notice_id" value="{{ adoption_notice.pk }}">
+                <button class="btn2" type="submit" id="submit"><i class="fa-solid fa-bell-slash"></i></button>
+            </form>
+            {% endif %}
+        </h1>
         {% if has_edit_permission %}
             <a class="btn2"
                href="{% url 'adoption-notice-add-photo' adoption_notice_id=adoption_notice.pk %}">{% translate 'Foto hinzufügen' %}</a>

src/fellchensammlung/views.py

@@ -75,9 +75,17 @@ def change_language(request):
 
 def adoption_notice_detail(request, adoption_notice_id):
     adoption_notice = AdoptionNotice.objects.get(id=adoption_notice_id)
+    if request.user.is_authenticated:
+        try: 
+            subscription = Subscriptions.objects.get(owner=request.user, adoption_notice=adoption_notice)
+            is_subscribed = True
+        except Subscriptions.DoesNotExist:
+            is_subscribed = False
     has_edit_permission = user_is_owner_or_trust_level(request.user, adoption_notice)
     if request.method == 'POST':
+        action = request.POST.get("action")
         if request.user.is_authenticated:
+            if action == "comment":
                 comment_form = CommentForm(request.POST)
 
                 if comment_form.is_valid():
@@ -100,12 +108,20 @@ def adoption_notice_detail(request, adoption_notice_id):
                                                             text=f"{request.user}: {comment_instance.text}",
                                                             comment=comment_instance)
                             notification.save()
+            else:
+                comment_form = CommentForm(instance=adoption_notice)
+            if action == "subscribe":
+                Subscriptions.objects.create(owner=request.user, adoption_notice=adoption_notice)
+                is_subscribed = True
+            if action == "unsubscribe":
+                    subscription.delete()
+                    is_subscribed = False
         else:
             raise PermissionDenied
     else:
         comment_form = CommentForm(instance=adoption_notice)
     context = {"adoption_notice": adoption_notice,"comment_form": comment_form, "user": request.user,
-               "has_edit_permission": has_edit_permission}
+               "has_edit_permission": has_edit_permission, "is_subscribed": is_subscribed}
     return render(request, 'fellchensammlung/details/detail_adoption_notice.html', context=context)