Move project extent reprojection from Django to QGIS worker - #1763
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8 lines less! Great!
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Thanks, will clean history and merge. |
- Add `reproject_extent()` to `docker-qgis/qfc_worker/utils.py`, using `QgsCoordinateTransform` to reproject a `QgsRectangle` to WGS84 (EPSG:4326) and validating the result against the target CRS's area of use - Compute the reprojected extent in `_extract_project_details`, then store the WKT (or an empty string on failure) in `details["extent"]` - In `QgisProjectQueryset.update_from_details()` in `docker-app/qfieldcloud/project/models.py` just parse the already-reprojected WKT with `GEOSGeometry` - Remove the unused `transform_wkt_crs()` helper and its Django-side tests (`geometry_utils.py`, `test_geometry_utils.py`, `test_utils.py`) - Add tests for `reproject_extent()` - Document in `type_defs.py` that `extent` is now pre-reprojected WGS84 WKT
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Until now, we did the re-projection for
QgisProject.extentfrom the clients CRS to our target one (WGS 84) in the Django on every run ofQgisProjectQueryset.update_from_details(), which is not efficient. Thats why this PR moves it to QGIS worker.Changes:
reproject_extent()todocker-qgis/qfc_worker/utils.py, usingQgsCoordinateTransformto reproject aQgsRectangleto WGS84 (EPSG:4326) and validating the result against the target CRS's area of useopen_qgis_project_temporarily()right after reading the project, storing the WKT (or an empty string on failure) indetails["extent"]QgisProjectQueryset.update_from_details()indocker-app/qfieldcloud/project/models.pyjust parse the already-reprojected WKT withGEOSGeometrytransform_wkt_crs()helper and its Django-side testsreproject_extent()type_defs.pyandprocess_projectfile.pythatextentis now pre-re-projected in WGS84