transmitters detai added

apps/hadis/serializers/serializers_admin.py

@@ -417,6 +417,7 @@ class AdminTransmitterDetailSerializer(serializers.ModelSerializer):
     died_in = serializers.JSONField()
     description = serializers.JSONField()
     thumbnail = AbsoluteImageField(required=False, allow_null=True)
+    remove_thumbnail = serializers.BooleanField(write_only=True, required=False, default=False)
     reliability = serializers.PrimaryKeyRelatedField(
         queryset=TransmitterReliability.objects.all(),
         required=False,
@@ -448,12 +449,20 @@ class AdminTransmitterDetailSerializer(serializers.ModelSerializer):
             "died_in",
             "description",
             "thumbnail",
+            "remove_thumbnail",
             "share_link",
             "created_at",
             "updated_at",
         ]
         read_only_fields = ["id", "slug", "share_link", "created_at", "updated_at", "reliability_detail"]
 
+    def update(self, instance, validated_data):
+        remove_thumbnail = validated_data.pop("remove_thumbnail", False)
+        if remove_thumbnail and instance.thumbnail:
+            instance.thumbnail.delete(save=False)
+            instance.thumbnail = None
+        return super().update(instance, validated_data)
+
 
 class AdminBookSubjectAreaSerializer(serializers.ModelSerializer):
     class Meta: