Update GSR share code lookup and add owner name display

backend/gsr_booking/serializers.py

@@ -85,8 +85,11 @@ class Meta:
 class GSRShareCodeSerializer(serializers.ModelSerializer):
     status = serializers.SerializerMethodField()
     expires_at = serializers.SerializerMethodField()
-    booking_id = serializers.PrimaryKeyRelatedField(
-        source="booking", queryset=GSRBooking.objects.all(), write_only=True
+    booking_id = serializers.SlugRelatedField(
+        slug_field="booking_id",
+        source="booking",
+        queryset=GSRBooking.objects.all(),
+        write_only=True,
     )
 
     class Meta:
@@ -126,11 +129,23 @@ class SharedGSRBookingSerializer(serializers.ModelSerializer):
 
     building = serializers.CharField(source="gsr.name")
     is_valid = serializers.SerializerMethodField()
+    owner_name = serializers.SerializerMethodField()
 
     class Meta:
         model = GSRBooking
-        fields = ["room_name", "building", "start", "end", "is_valid"]
+        fields = ["room_name", "building", "start", "end", "is_valid", "owner_name"]
         read_only_fields = fields
 
+    def get_owner_name(self, obj):
+        user = obj.reservation.creator if obj.reservation else obj.user
+        if not user:
+            return "Unknown"
+
+        full_name = f"{user.first_name} {user.last_name}".strip()
+        if full_name:
+            return full_name
+
+        return user.username
+
     def get_is_valid(self, obj):
         return obj.end and obj.end > timezone.now()

backend/tests/gsr_booking/test_share_codes.py

@@ -56,7 +56,7 @@ def setUp(self):
     def test_create_share_code_success(self):
         # Creates a gsr share code successfully
         self.client.force_authenticate(user=self.owner)
-        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.id})
+        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.booking_id})
         self.assertEqual(response.status_code, 201)
         payload = json.loads(response.content)
 
@@ -72,13 +72,13 @@ def test_create_share_code_duplicate(self):
         self.client.force_authenticate(user=self.owner)
 
         # First creation
-        response1 = self.client.post("/api/gsr/share/", {"booking_id": self.booking.id})
+        response1 = self.client.post("/api/gsr/share/", {"booking_id": self.booking.booking_id})
         self.assertEqual(response1.status_code, 201)
         payload1 = json.loads(response1.content)
         first_code = payload1["code"]
 
         # Second creation (should return existing code)
-        response2 = self.client.post("/api/gsr/share/", {"booking_id": self.booking.id})
+        response2 = self.client.post("/api/gsr/share/", {"booking_id": self.booking.booking_id})
         self.assertEqual(response2.status_code, 201)  # Changed from 200 to 201
         payload2 = json.loads(response2.content)
 
@@ -89,7 +89,7 @@ def test_create_share_code_duplicate(self):
         self.assertEqual(GSRShareCode.objects.filter(booking=self.booking).count(), 1)
 
     def test_create_share_code_without_auth(self):
-        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.id})
+        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.booking_id})
         self.assertEqual(response.status_code, 403)
         self.assertEqual(GSRShareCode.objects.count(), 0)
 
@@ -217,7 +217,7 @@ def test_create_share_code_for_expired_booking_code_invalid(self):
         self.booking.save(update_fields=["end"])
 
         self.client.force_authenticate(user=self.owner)
-        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.id})
+        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.booking_id})
         self.assertEqual(response.status_code, 201)
         payload = json.loads(response.content)
         self.assertEqual(payload["status"], "expired")
@@ -247,7 +247,7 @@ def test_create_share_code_replaces_expired(self):
 
         # Create again
         self.client.force_authenticate(user=self.owner)
-        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.id})
+        response = self.client.post("/api/gsr/share/", {"booking_id": self.booking.booking_id})
         self.assertEqual(response.status_code, 201)  # Changed from 200 to 201
         payload = json.loads(response.content)