add heavy caching to mapdata api

src/c3nav/mapdata/models/base.py

@@ -4,6 +4,8 @@ from django.db import models
 from django.db.models.base import ModelBase
 from django.utils.translation import ugettext_lazy as _
 
+from c3nav.mapdata.lastupdate import set_last_mapdata_update
+
 MAPITEM_TYPES = OrderedDict()
 
 
@@ -40,5 +42,9 @@ class MapItem(models.Model, metaclass=MapItemMeta):
     def tofile(self):
         return OrderedDict()
 
+    def save(self, *args, **kwargs):
+        with set_last_mapdata_update():
+            super().save(*args, **kwargs)
+
     class Meta:
         abstract = True

src/c3nav/mapdata/models/geometry.py

@@ -8,7 +8,7 @@ from shapely.geometry.geo import mapping, shape
 from c3nav.mapdata.fields import GeometryField
 from c3nav.mapdata.models import Elevator
 from c3nav.mapdata.models.base import MapItem, MapItemMeta
-from c3nav.mapdata.utils import format_geojson
+from c3nav.mapdata.utils.json import format_geojson
 
 GEOMETRY_MAPITEM_TYPES = OrderedDict()
 

src/c3nav/mapdata/models/package.py

@@ -4,6 +4,8 @@ from django.conf import settings
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
+from c3nav.mapdata.lastupdate import set_last_mapdata_update
+
 
 class Package(models.Model):
     """
@@ -93,5 +95,9 @@ class Package(models.Model):
 
         return data
 
+    def save(self, *args, **kwargs):
+        with set_last_mapdata_update():
+            super().save(*args, **kwargs)
+
     def __str__(self):
         return self.name