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try to fix MapHistory updating

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Laura Klünder 2017-11-16 19:24:49 +01:00
parent 6dbfa8c023
commit 8c9346a074
3 changed files with 39 additions and 10 deletions
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10
src/c3nav/mapdata/models/geometry/base.py
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@ -5,9 +5,10 @@ from django.db import models
from django.utils.functional import cached_property
from django.utils.translation import ugettext_lazy as _
from shapely.geometry import LineString, Point, mapping
from shapely.ops import unary_union
from c3nav.mapdata.models.base import SerializableMixin
from c3nav.mapdata.utils.geometry import assert_multilinestring
from c3nav.mapdata.utils.geometry import assert_multilinestring, assert_multipolygon
from c3nav.mapdata.utils.json import format_geojson
@ -117,7 +118,12 @@ class GeometryMixin(SerializableMixin):
return False
def get_changed_geometry(self):
return self.geometry if self.orig_geometry is None else self.geometry.symmetric_difference(self.orig_geometry)
if self.orig_geometry is None:
return self.geometry
difference = self.geometry.symmetric_difference(self.orig_geometry)
if self._meta.get_field('geomety').geomtype in ('polygon', 'multipolygon'):
difference = unary_union(assert_multipolygon(difference))
return difference
def save(self, *args, **kwargs):
self.recalculate_bounds()