feat(generic): add export support to list views

using https://django-tables2.readthedocs.io/en/latest/pages/export.html

apis_core/generic/views.py

@@ -22,6 +22,9 @@
 from django_tables2 import SingleTableMixin
 from django_tables2.columns import library
 from django_tables2.tables import table_factory
+from django_tables2.export.views import ExportMixin
+
+from datetime import datetime
 
 from apis_core.apis_metainfo.models import Uri
 from apis_core.utils.helpers import create_object_from_uri, get_importer_for_model
@@ -100,6 +103,7 @@ def get_permission_required(self):
 class List(
     GenericModelMixin,
     PermissionRequiredMixin,
+    ExportMixin,
     SingleTableMixin,
     FilterView,
 ):
@@ -123,6 +127,11 @@ def get_table_class(self):
         table_class = first_member_match(table_modules, GenericTable)
         return table_factory(self.model, table_class)
 
+    def get_export_filename(self, extension):
+        now = datetime.now()
+        filename = f"{self.get_table_class().__name__}_{now.strftime('%Y-%m-%d_%H-%M-%S')}.{extension}"
+        return filename
+
     def get_table_kwargs(self):
         kwargs = super().get_table_kwargs()