refactor: Use custom CSV export view

Remove dependency on djangorestframework-csv

people/views/export.py

@@ -0,0 +1,33 @@
+import csv
+import typing
+
+from django.http import HttpResponse
+from django.views.generic.list import BaseListView
+
+from .. import models, serializers
+
+
+class CsvExportView(BaseListView):
+    model = None
+    serializer_class = None
+
+    def render_to_response(self, context: typing.Dict) -> HttpResponse:
+        response = HttpResponse(content_type='text/csv')
+        response['Content-Disposition'] = f'attachment; filename="{self.get_context_object_name(self.object_list)}.csv"'
+        
+        serializer = self.serializer_class(self.get_queryset(), many=True)
+        writer = csv.DictWriter(response, fieldnames=self.serializer_class.Meta.fields)
+        writer.writeheader()
+        writer.writerows(serializer.data)
+            
+        return response
+
+
+class PersonExportView(CsvExportView):
+    model = models.Person
+    serializer_class = serializers.PersonExportSerializer
+    
+
+class RelationshipExportView(CsvExportView):
+    model = models.Relationship
+    serializer_class = serializers.RelationshipSerializer