84 lines
3.0 KiB
Python
84 lines
3.0 KiB
Python
"""
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Author: Michel Peltriaux
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Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
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Contact: michel.peltriaux@sgdnord.rlp.de
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Created on: 04.01.22
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"""
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import datetime
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from django.contrib.gis.db.models.functions import Area
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from konova.management.commands.setup import BaseKonovaCommand
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from konova.models import Geometry, ParcelIntersection
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class Command(BaseKonovaCommand):
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help = "Recalculates parcels for entries with geometry but missing parcel information"
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def add_arguments(self, parser):
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parser.add_argument(
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"--force-all",
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action="store_true",
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default=False,
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help="If Attribute set, all entries parcels will be recalculated"
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)
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def handle(self, *args, **options):
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try:
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self.recalculate_parcels(options)
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except KeyboardInterrupt:
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self._break_line()
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exit(-1)
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def recalculate_parcels(self, options: dict):
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force_all = options.get("force_all", False)
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geometry_objects = Geometry.objects.all().exclude(
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geom=None
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)
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if not force_all:
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# Fetch all intersections
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intersection_objs = ParcelIntersection.objects.filter(
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geometry__in=geometry_objects
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)
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# Just take the geometry ids, which seem to have intersections
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geom_with_intersection_ids = intersection_objs.values_list(
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"geometry__id",
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flat=True
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)
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intersected_geom_objs = Geometry.objects.filter(
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id__in=geom_with_intersection_ids
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)
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# Filter those geometries out (they have intersections and do not need to be processed)
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geometry_objects = geometry_objects.difference(intersected_geom_objs)
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self._write_warning("=== Update parcels and districts ===")
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# Order geometries by size to process smaller once at first
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geometries = geometry_objects.annotate(
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area=Area("geom")
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).order_by(
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'area'
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)
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self._write_warning(f"Process parcels for {geometries.count()} geometry entries now ...")
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i = 0
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num_geoms = geometries.count()
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geoms_with_errors = {}
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for geometry in geometries:
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self._write_warning(f"--- {datetime.datetime.now()} Process {geometry.id} now ...")
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try:
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geometry.update_parcels()
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self._write_warning(f"--- Processed {geometry.get_underlying_parcels().count()} underlying parcels")
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except Exception as e:
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geoms_with_errors[geometry.id] = str(e)
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i += 1
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self._write_warning(f"--- {i}/{num_geoms} processed")
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self._write_success("Updating parcels done!")
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for key, val in geoms_with_errors.items():
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self._write_error(f" Error on {key}: {val}")
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self._write_success(f"{num_geoms - len(geoms_with_errors)} geometries successfuly recalculated!")
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self._break_line()
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