def get(self):
self.response.headers["Content-Type"] = "text/xml"
currlocationlat = 41.99765
currlocationlong = -87.6745
tag = self.request.get("tag", None)
if self.request.get("LatLngBounds") == "":
radius = self.request.get("radius", 3)
else:
lat_lo, lng_lo, lat_hi, lng_hi = self.request.get("LatLngBounds").split(",")
distance = float(geoutil.calcDistance(float(lat_lo), float(lng_lo), float(lat_hi), float(lng_hi)))
radius = distance / 2
# self.response.out.write('radius: ' + radius + '\r')
if self.request.get("location") == "":
latitude = self.request.get("latitude", currlocationlat)
longitude = self.request.get("longitude", currlocationlong)
else:
latitude, longitude = self.request.get("location").split(",")
# self.response.out.write('location: ' + str(latitude) + ',' + str(longitude) + '\r')
dist = searchplaces(tag, latitude, longitude, radius, self.request.get("owner", None))
self.response.out.write("<places>")
self.response.out.write("<version>1.1.3</version>")
self.response.out.write("<version-date>2010-08-17</version-date>")
for place in sorted(dist, key=operator.attrgetter("distance")):
ret = xmlEncode(place)
## self.response.out.write(place.name)
## self.response.out.write(place.distance)
## self.response.out.write(place.recordid)
# self.response.out.write('<hr>')
self.response.out.write(ret)
self.response.out.write("</places>")
def searchplaces(tag, latitude, longitude, radius=50, owner=None):
if owner is not None:
ownerclause = "owner = :owner"
else:
ownerclause = ""
if tag is not None:
tagclause = "tag = :search"
else:
tagclause = ""
baseSelect = "SELECT * FROM Place"
print >>sys.stderr, baseSelect
if owner is not None:
if tag is not None:
placeclause = baseSelect + " WHERE " + ownerclause + " AND " + tagclause
places = db.GqlQuery(placeclause, search=tag, owner=owner)
else:
places = db.GqlQuery(baseSelect + " WHERE " + ownerclause, owner=owner)
else:
if tag is not None:
places = db.GqlQuery(baseSelect + " WHERE " + tagclause, search=tag)
else:
places = db.GqlQuery(baseSelect)
dist = []
for place in places:
if (place.latitude == "") or (place.longitude == ""):
distance = 1000
else:
distance = float(geoutil.calcDistance(latitude, longitude, float(place.latitude), float(place.longitude)))
if is_number(radius):
radius = float(radius)
else:
radius = 50
if distance < radius:
dist.append(place)
dist[-1].distance = distance
return dist
