fix: do not return failed_rows and do not use functions on empty df

Author: Gigaszi

mapswipe_workers/mapswipe_workers/utils/process_mapillary.py

@@ -125,7 +125,7 @@ def coordinate_download(
         if len(downloaded_metadata):
             downloaded_metadata = pd.concat(downloaded_metadata, ignore_index=True)
         else:
-            downloaded_metadata = pd.DataFrame(downloaded_metadata)
+            return pd.DataFrame(downloaded_metadata)
 
         failed_tiles = pd.DataFrame(failed_tiles, columns=tiles.columns).reset_index(
             drop=True
@@ -137,11 +137,12 @@ def coordinate_download(
             if col not in downloaded_metadata.columns:
                 downloaded_metadata[col] = None
 
-        downloaded_metadata = downloaded_metadata[
-            downloaded_metadata['geometry'].apply(lambda point: point.within(polygon))
-        ]
+        if downloaded_metadata.isna().all().all() == False or downloaded_metadata.empty == True:
+            downloaded_metadata = downloaded_metadata[
+                downloaded_metadata['geometry'].apply(lambda point: point.within(polygon))
+            ]
 
-        return downloaded_metadata, failed_tiles
+        return downloaded_metadata
 
 
 def geojson_to_polygon(geojson_data):
@@ -226,7 +227,7 @@ def get_image_metadata(
     sampling_threshold = None,
 ):
     aoi_polygon = geojson_to_polygon(aoi_geojson)
-    downloaded_metadata, failed_tiles = coordinate_download(
+    downloaded_metadata = coordinate_download(
         aoi_polygon, level, attempt_limit
     )
     downloaded_metadata = downloaded_metadata[

mapswipe_workers/tests/unittests/test_process_mapillary.py

@@ -200,7 +200,7 @@ def test_coordinate_download(self, mock_download_and_process_tile):
             None,
         )
 
-        metadata, failed = coordinate_download(
+        metadata = coordinate_download(
             self.test_polygon, self.level
         )
 
@@ -214,12 +214,11 @@ def test_coordinate_download_with_failures(self, mock_download_and_process_tile)
             pd.Series({"x": 1, "y": 1, "z": self.level}),
         )
 
-        metadata, failed = coordinate_download(
+        metadata = coordinate_download(
             self.test_polygon, self.level
         )
 
         self.assertTrue(metadata.empty)
-        self.assertFalse(failed.empty)
 
     def test_filter_within_time_range(self):
         start_time = "2016-01-20 00:00:00"
@@ -284,10 +283,7 @@ def test_filter_missing_columns(self):
 
     @patch("mapswipe_workers.utils.process_mapillary.coordinate_download")
     def test_get_image_metadata(self, mock_coordinate_download):
-        mock_coordinate_download.return_value = (
-            self.fixture_df,
-            None,
-        )
+        mock_coordinate_download.return_value = self.fixture_df
         result = get_image_metadata(self.fixture_data)
         self.assertIsInstance(result, dict)
         self.assertIn("ids", result)
@@ -296,10 +292,7 @@ def test_get_image_metadata(self, mock_coordinate_download):
 
     @patch("mapswipe_workers.utils.process_mapillary.coordinate_download")
     def test_get_image_metadata_filtering(self, mock_coordinate_download):
-        mock_coordinate_download.return_value = (
-            self.fixture_df,
-            None,
-        )
+        mock_coordinate_download.return_value = self.fixture_df
 
         params = {
             "is_pano": True,
@@ -315,10 +308,7 @@ def test_get_image_metadata_filtering(self, mock_coordinate_download):
 
     @patch("mapswipe_workers.utils.process_mapillary.coordinate_download")
     def test_get_image_metadata_no_rows(self, mock_coordinate_download):
-        mock_coordinate_download.return_value = (
-            self.fixture_df,
-            None,
-        )
+        mock_coordinate_download.return_value = self.fixture_df
 
         params = {
             "is_pano": True,
@@ -332,10 +322,7 @@ def test_get_image_metadata_no_rows(self, mock_coordinate_download):
     def test_get_image_metadata_empty_response(self, mock_coordinate_download):
         df = self.fixture_df.copy()
         df = df.drop(df.index)
-        mock_coordinate_download.return_value = (
-            df,
-            None
-        )
+        mock_coordinate_download.return_value = df
 
         with self.assertRaises(ValueError):
             get_image_metadata(self.fixture_data)
@@ -344,10 +331,7 @@ def test_get_image_metadata_empty_response(self, mock_coordinate_download):
     @patch("mapswipe_workers.utils.process_mapillary.coordinate_download")
     def test_get_image_metadata_size_restriction(self, mock_coordinate_download, mock_filter_results):
         mock_filter_results.return_value = pd.DataFrame({'ID': range(1, 100002)})
-        mock_coordinate_download.return_value = (
-            self.fixture_df,
-            None,
-        )
+        mock_coordinate_download.return_value = self.fixture_df
 
         with self.assertRaises(ValueError):
             get_image_metadata(self.fixture_data)