def remove_from_geotree_by_key_name(cls, key_name, coord, gt_key_name=None, max_z=None):
"""this method removes mentionings of a point from geotree
coord is GeoPtProperty
the points itself is not changed (it may not even exist in datastore)
"""
#delete from native tile
if not gt_key_name:
gt_key_name = cls._GEO_TREE_KEY
if not max_z:
max_z = get_max_z(gt_key_name)
tile_str = tile_tuple_to_str(lat_lon_to_tile(coord.lat, coord.lon, max_z))
tile_key_name = '%s,%s' % (tile_str,gt_key_name)
logging.debug(tile_key_name)
t = Tile.get_by_key_name(tile_key_name)
points = json.loads(t.points_native)
for i in range(len(points)):
if points[i]['key_name'] == key_name:
del(points[i])
break
t.points_native = json.dumps(points)
t.put()
#mark this tile updated and update all tiles
gt = cls.get_by_key_name(gt_key_name)
tiles_updated = sorted_tiles_set(gt.tiles_updated)
tiles_updated.insert(tile_key_name)
gt.tiles_updated = list(tiles_updated)
#decrease points count
gt.number_points -= 1
gt.put()
gt.update_tiles()
def remove_point_by_key_name(cls, key_name, gt_key_name=None, max_z=None):
#delete from native tile
if not gt_key_name:
gt_key_name = cls._GEO_TREE_KEY
if not max_z:
max_z = get_max_z(gt_key_name)
p = Point.get_by_key_name(key_name)
tile_str = tile_tuple_to_str(lat_lon_to_tile(p.coord.lat, p.coord.lon, max_z))
tile_key_name = '%s,%s' % (tile_str,gt_key_name)
t = Tile.get_by_key_name(tile_key_name)
points = json.loads(t.points_native)
for i in range(len(points)):
if points[i]['key_name'] == key_name:
del(points[i])
break
t.points_native = json.dumps(points)
t.put()
#mark this tile updated and update all tiles
gt = cls.get_by_key_name(gt_key_name)
tiles_updated = sorted_tiles_set(gt.tiles_updated)
tiles_updated.insert(tile_key_name)
gt.tiles_updated = list(tiles_updated)
#decrease points count
gt.number_points -= 1
gt.put()
gt.update_tiles()
#delete point
p.delete()
def test_tile_tuple_to_str(self):
s = '2,3,4'
t = (2,3,4)
self.assertEqual(s,geomath.tile_tuple_to_str(t))
def test_tile_tuple_to_str(self):
s = '2,3,4'
t = (2, 3, 4)
self.assertEqual(s, geomath.tile_tuple_to_str(t))
