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cache get_render_level_data

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Laura Klünder 2017-10-19 14:02:03 +02:00
parent 9bfa48ba2c
commit e1eeef6405
1 changed files with 11 additions and 2 deletions
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13
src/c3nav/mapdata/render/base.py
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@ -1,10 +1,11 @@
import pickle
from django.core.cache import cache
from django.db import transaction
from django.db.models import Q
from shapely.ops import unary_union
from c3nav.mapdata.models import Level
from c3nav.mapdata.models import Level, MapUpdate
class LevelGeometries:
@ -45,11 +46,19 @@ class LevelGeometries:
def get_render_level_data(level):
cache_key = 'mapdata:render_level_data:%s:%s' % (str(level.pk if isinstance(level, Level) else level),
MapUpdate.cache_key())
result = cache.get(cache_key, None)
if result is not None:
return result
if isinstance(level, Level):
level_pk, level_base_altitude = level.pk, level.base_altitude
else:
level_pk, level_base_altitude = Level.objects.filter(pk=level).values_list('pk', 'base_altitude')[0]
levels = Level.objects.filter(Q(on_top_of=level_pk) | Q(base_altitude__lte=level_base_altitude))
levels = levels.values_list('geoms_cache', 'default_height')
result = levels.values_list('geoms_cache', 'default_height')
cache.set(cache_key, result, 900)
return levels