bugfix - made signature compatible with the parent class and by repla…

…cing record with topic and changed the function body accordingly

oarepo_doi/types/doi.py

@@ -36,14 +36,14 @@ def can_create(self, identity, data, receiver, topic, creator, *args, **kwargs):
             )
         super().can_create(identity, data, receiver, topic, creator, *args, **kwargs)
 
-    def is_applicable_to(self, identity, record , *args, **kwargs):
+    def is_applicable_to(self, identity, topic, *args, **kwargs):
         mapping_file = current_app.config.get("DATACITE_MAPPING")
-        mapping = obj_or_import_string(mapping_file[record.schema])()
-        doi_value = mapping.get_doi(record) #if ANY doi already assigned, adding another is not possible
+        mapping = obj_or_import_string(mapping_file[topic.schema])()
+        doi_value = mapping.get_doi(topic) #if ANY doi already assigned, adding another is not possible
         if doi_value:
             return False
         else:
-            return super().is_applicable_to(identity, record, *args, **kwargs)
+            return super().is_applicable_to(identity, topic, *args, **kwargs)
 
     @override
     def stateful_name(self, identity, *, topic, request=None, **kwargs):