use change from issue-16

Author: korikuzma

src/anyvlm/storage/base_storage.py

@@ -24,6 +24,11 @@ def close(self) -> None:
     def wipe_db(self) -> None:
         """Wipe all data from the storage backend."""
 
+    @property
+    @abstractmethod
+    def sanitized_url(self) -> str:
+        """Return a sanitized URL (password masked) of the database connection string."""
+
     @abstractmethod
     def add_allele_frequencies(self, caf: CohortAlleleFrequencyStudyResult) -> None:
         """Add allele frequency data to the database. Will skip conflicts.
@@ -34,8 +39,3 @@ def add_allele_frequencies(self, caf: CohortAlleleFrequencyStudyResult) -> None:
 
         :param caf: Cohort allele frequency study result object to insert into the DB
         """
-
-    @property
-    @abstractmethod
-    def sanitized_url(self) -> str:
-        """Return a sanitized URL (password masked) of the database connection string."""

src/anyvlm/storage/mappers.py

@@ -41,7 +41,7 @@ def from_db_entity(
         homozygotes = db_entity.ac_hom
         heterozygotes = db_entity.ac_het
         hemizygotes = db_entity.ac_hemi
-        ac = sum((homozygotes or 0, heterozygotes or 0, hemizygotes or 0))
+        ac = sum(x or 0 for x in (homozygotes, heterozygotes, hemizygotes))
         an = db_entity.an
 
         return CohortAlleleFrequencyStudyResult(