added table

src/components/data_table.py

@@ -18,14 +18,13 @@ def render(app: Dash, data: pd.DataFrame) -> html.Div:
     )
     def update_data_table(
         years: list[str], months: list[str], categories: list[str]
-    ) -> list[dict]:
+    ) -> html.Div:
         filtered_data = data.query(
             "year in @years and month in @months and category in @categories"
         )
 
         if filtered_data.shape[0] == 0:
-            return []
-
+            return html.Div("No data selected.", id=ids.DATA_TABLE)
         def create_pivot_table() -> pd.DataFrame:
             pt = filtered_data.pivot_table(
                 values=DataSchema.AMOUNT,
@@ -36,16 +35,6 @@ def render(app: Dash, data: pd.DataFrame) -> html.Div:
             )
             return pt.reset_index().sort_values(DataSchema.AMOUNT, ascending=False)
 
-        return create_pivot_table().to_dict("records")
+        return html.Div(dcc.Data_table(data=create_pivot_table(data), id=ids.DATA_TABLE)
 
-    return html.Div(
-        DataTable(
-            id=ids.DATA_TABLE,
-            columns=[
-                {"name": col, "id": col}
-                for col in [DataSchema.CATEGORY, DataSchema.AMOUNT]
-            ],
-            data=[],
-            sort_action="native",
-        )
-    )
+    return html.Div(id=ids.DATA_TABLE)