def computeNodeEdges(db):
edges = Edge.getMongoItems(db)
nodeEdges = {}
for edgeId in edges:
edge = edges[edgeId]
startNodeId = edge[START_NODE_KEY]
endNodeId = edge[END_NODE_KEY]
addIfKey(nodeEdges, startNodeId, edgeId)
addIfKey(nodeEdges, endNodeId, edgeId)
return nodeEdges
def computeGridIndexes(db):
computed = Computed()
minLat, minLon, maxLat, maxLon = computed.get(MAX_MINS_KEY, db)
grid = Grid(minLat, minLon, maxLat, maxLon)
nodes = Node.getItems(db)
gridIndex = {}
for key in nodes:
node = nodes[key]
lat = node.lat
lon = node.lon
cellID = str(grid.getCellID(lat, lon))
addIfKey(gridIndex, cellID, key)
return gridIndex
