fix bug

ereuse_devicehub/inventory/forms.py

@@ -282,7 +282,7 @@ class UploadSnapshotForm(FlaskForm, SnapshotMix):
 
         if commit:
             db.session.commit()
-        return response
+        return self.result
 
 
 class NewDeviceForm(FlaskForm):

ereuse_devicehub/migrations/versions/23d9e7ebbd7d_add_snapshot_errors.py

@@ -48,7 +48,9 @@ def upgrade():
         sa.PrimaryKeyConstraint('id'),
         schema=f'{get_inv()}',
     )
+    op.execute(f"CREATE SEQUENCE {get_inv()}.snapshot_errors_seq START 1;")
 
 
 def downgrade():
     op.drop_table('snapshot_errors', schema=f'{get_inv()}')
+    op.execute(f"DROP SEQUENCE {get_inv()}.snapshot_errors_seq;")