changes to make dash app work

2024-08-27 15:12:44 +01:00
parent 173c0594a8
commit 7b80b52998
4 changed files with 126 additions and 34 deletions
@@ -130,7 +130,7 @@ Then move the files back in one at a time oldest to newest and run again for eac
                df = df.with_columns(
                    pl.when(pl.col(col).is_null())
                    .then(pl.lit("null"))
-                    .otherwise(pl.col(col).map_elements(lambda x: str(x) if x is not None else "null"))
+                    .otherwise(pl.col(col).map_elements(lambda x: str(x) if x is not None else "null", return_dtype=pl.Utf8))
                    .alias(col)
                )
        return df