Merge pull request 'Add opengraph' (#30) from dev into main

Reviewed-on: #30

pflaenzli/pflaenzli/templates/offer/detail.html

@@ -6,6 +6,11 @@
     <meta name="description"
           content="{{ offer.user.username }} offers {{ offer.title }}!">
     <meta name="author" content="{{ offer.user.username }}">
+    <meta property="og:title" content="{{ offer.title }}">
+    <meta property="og:description"
+          content="{{ offer.user.username }} offers {{ offer.title }}!">
+    <meta property="og:url" content="{{ host }}/offer/{{ offer.id }}">
+    <meta property="og:image" content="{{ host }}{{ offer.image.url }}">
 {% endblock %}
 {% block content %}
     {% if offer.user == request.user %}

pflaenzli/pflaenzli/views.py

@@ -53,6 +53,7 @@ def create_offer(request):
 def offer_detail(request, offer_id):
     offer = get_object_or_404(Offer, id=offer_id)
     wishes = Wish.objects.filter(user=offer.user)
+    host = f"{request.scheme}://{request.META.get('HTTP_HOST')}"
 
     if request.user.is_authenticated:
         if offer.zipcode and request.user.zipcode:
@@ -68,7 +69,7 @@ def offer_detail(request, offer_id):
     else:
         dist = None
 
-    return render(request, "offer/detail.html", {"offer": offer, "wishes": wishes, "dist": dist})
+    return render(request, "offer/detail.html", {"host": host, "offer": offer, "wishes": wishes, "dist": dist})
 
 
 @login_required