register changed geometries when some important attribute changes
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3 changed files with 12 additions and 0 deletions
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@ -9,6 +9,8 @@ from c3nav.mapdata.models.base import SerializableMixin
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from c3nav.mapdata.utils.geometry import assert_multilinestring, assert_multipolygon
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from c3nav.mapdata.utils.json import format_geojson
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geometry_affecting_fields = ('height', 'width', 'access_restriction')
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class GeometryMixin(SerializableMixin):
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"""
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@ -22,6 +24,10 @@ class GeometryMixin(SerializableMixin):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.orig_geometry = None if 'geometry' in self.get_deferred_fields() else self.geometry
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self._orig = {field.attname: (None if field.name in self.get_deferred_fields()
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else getattr(self, field.attname))
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for field in self._meta.get_fields()
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if field.name in geometry_affecting_fields}
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def get_geojson_properties(self, *args, **kwargs) -> dict:
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result = OrderedDict((
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@ -88,6 +94,10 @@ class GeometryMixin(SerializableMixin):
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def contains(self, x, y) -> bool:
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return self.geometry.contains(Point(x, y))
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@property
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def all_geometry_changed(self):
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return any(getattr(self, attname) != value for attname, value in self._orig.items())
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@property
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def geometry_changed(self):
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if self.orig_geometry is None:
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@ -73,6 +73,7 @@ class LevelGeometryMixin(GeometryMixin):
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return base_subtitle
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def register_change(self, force=False):
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force = force or self.all_geometry_changed
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if force or self.geometry_changed:
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changed_geometries.register(self.level_id, self.geometry if force else self.get_changed_geometry())
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@ -51,6 +51,7 @@ class SpaceGeometryMixin(GeometryMixin):
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def register_change(self, force=True):
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space = self.space
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force = force or self.all_geometry_changed
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if force or self.geometry_changed:
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changed_geometries.register(space.level_id, space.geometry.intersection(
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self.geometry if force else self.get_changed_geometry()
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