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fix: wrap coordinate transform in try/catch so we don't get random failures #139

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Merged
suricactus merged 4 commits into from
Mar 4, 2026
Merged

fix: wrap coordinate transform in try/catch so we don't get random failures #139

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5c0dc3d
typing: improve typing when selecting a project bbox
suricactus Mar 3, 2026
1c48e64
fix: wrap coordinate transform in try/catch so we don't get random fa…
suricactus Mar 3, 2026
785bbfd
Use the `isort` functionality from `ruff` instead of `isort` as a module
suricactus Mar 4, 2026
75edf37
Don't import the whole `qgis.core`, but only the `QgsCsException`
suricactus Mar 4, 2026
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26 changes: 22 additions & 4 deletions libqfieldsync/offliners.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
from pathlib import Path
from typing import Dict, List, NamedTuple, NewType, Optional

import qgis.core
from osgeo import gdal, ogr, osr
from qgis.core import (
Qgis,
Expand Down Expand Up @@ -113,6 +114,11 @@ def convert_to_offline(
if bbox and bbox.isFinite():
only_selected = True
for layer in layers:
if layer.type() != QgsMapLayer.LayerType.VectorLayer:
continue

assert isinstance(layer, QgsVectorLayer)

if Qgis.versionInt() >= 33000: # noqa: PLR2004
no_geometry_types = [
Qgis.GeometryType.Null,
Expand All @@ -131,8 +137,14 @@ def convert_to_offline(
layer.removeSelection()
else:
tr = QgsCoordinateTransform(project.crs(), layer.crs(), project)
layer_bbox = tr.transform(bbox)
layer.selectByRect(layer_bbox)

try:
layer_bbox = tr.transform(bbox)
layer.selectByRect(layer_bbox)
except qgis.core.QgsCsException as err:
logger.warning(
f"Failed to transform project CRS {project.crs().authid()} bbox to layer {layer.name()} CRS {layer.crs().authid()} bbox within `QgisCoreOffliner`: {err}. All features will be offlined for this layer."
)

# If the selection by BBOX did not select anything, make sure we fool `QgsOfflineEditing` something is selected.
# Otherwise when `layer.selectedFeatureIds().isEmpty()`, `QgsOfflineEditing` dumps all features.
Expand Down Expand Up @@ -437,8 +449,14 @@ def _convert_to_offline_project(
tr = QgsCoordinateTransform(
project.crs(), layer_to_offline.crs(), project
)
layer_bbox = tr.transform(bbox)
request.setFilterRect(layer_bbox)

try:
layer_bbox = tr.transform(bbox)
request.setFilterRect(layer_bbox)
except qgis.core.QgsCsException as err:
logger.warning(
f"Failed to transform project CRS {project.crs().authid()} bbox to layer {layer_to_offline.name()} CRS {layer_to_offline.crs().authid()} bbox within `PythonMiniOffliner`: {err}. All features will be offlined for this layer."
)

if filters_mapping[datasource_hash]:
request.setFilterExpression(filters_mapping[datasource_hash])
Expand Down
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