2025-summer/team-3
12
Fork 0
Code Issues Pull requests Projects Releases Activity

cache GeometryMapItem.to_geojson()

Browse source
This commit is contained in:
Laura Klünder 2016-12-06 22:48:07 +01:00
parent 48b0695a07
commit 32d6033301
1 changed files with 10 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/c3nav/mapdata/models/geometry.py
View file

@ -1,5 +1,6 @@
from collections import OrderedDict from collections import OrderedDict
from django.conf import settings
from django.db import models from django.db import models
from django.utils.translation import ugettext_lazy as _ from django.utils.translation import ugettext_lazy as _
from shapely.geometry.geo import mapping, shape from shapely.geometry.geo import mapping, shape
@ -25,6 +26,7 @@ class GeometryMapItem(MapItem, metaclass=GeometryMapItemMeta):
A map feature A map feature
""" """
geometry = GeometryField() geometry = GeometryField()
cached_geojson = {}
geomtype = None geomtype = None
@ -62,6 +64,14 @@ class GeometryMapItem(MapItem, metaclass=GeometryMapItemMeta):
)) ))
def to_geojson(self): def to_geojson(self):
if settings.DIRECT_EDITING:
return self._to_geojson()
key = (self.__class__, self.name)
if key not in self.cached_geojson:
self.cached_geojson[key] = self._to_geojson()
return self.cached_geojson[key]
def _to_geojson(self):
return [OrderedDict(( return [OrderedDict((
('type', 'Feature'), ('type', 'Feature'),
('properties', self.get_geojson_properties()), ('properties', self.get_geojson_properties()),