def test_is_valid_lat(self):
self.failUnless(is_valid_lat(90))
self.failUnless(is_valid_lat(90.0))
self.failUnless(is_valid_lat(D('90.0')))
self.failUnless(is_valid_lat(-90))
self.failUnless(is_valid_lat(-90.0))
self.failUnless(is_valid_lat(D('-90.0')))
self.failIf(is_valid_lat(90.0002))
self.failIf(is_valid_lat(D('90.0002')))
self.failIf(is_valid_lat(-90.0002))
self.failIf(is_valid_lat(D('-90.0002')))
def search(self, lat, lon, radius=None, query=None, category=None):
"""Search for places near a lat/lon, within a radius (in kilometers)."""
precondition(is_valid_lat(lat), lat)
precondition(is_valid_lon(lon), lon)
precondition(radius is None or is_numeric(radius), radius)
precondition(query is None or isinstance(query, basestring), query)
precondition(category is None or isinstance(category, basestring), category)
if isinstance(query, unicode):
query = query.encode('utf-8')
if isinstance(category, unicode):
category = category.encode('utf-8')
kwargs = { }
if radius:
kwargs['radius'] = radius
if query:
kwargs['q'] = query
if category:
kwargs['category'] = category
quargs = urllib.urlencode(kwargs)
if quargs:
quargs = '?'+quargs
endpoint = self._endpoint('search', lat=lat, lon=lon, quargs=quargs)
result = self._request(endpoint, 'GET')[1]
fc = json_decode(result)
return [Feature.from_dict(f) for f in fc['features']]
def get_context_async(self, lat, lon, **kwds):
"""
Starts an asynchronous request using GAE's URL Fetch service.
Returns an RPC object that can be subsequently passed to get_context_result()
**kwds
Keyword arguments to pass when creating the RPC object.
See http://code.google.com/appengine/docs/python/urlfetch/asynchronousrequests.html#create_rpc
"""
rpc = urlfetch.create_rpc(**kwds)
precondition(is_valid_lat(lat), lat)
precondition(is_valid_lon(lon), lon)
endpoint = self._endpoint('context', lat=lat, lon=lon)
headers = self._headers(endpoint, 'GET')
urlfetch.make_fetch_call(rpc, endpoint, headers=headers)
return rpc
def search(self, lat, lon, radius=None, query=None, category=None):
"""Search for places near a lat/lon."""
precondition(is_valid_lat(lat), lat)
precondition(is_valid_lon(lon), lon)
precondition(radius is None or is_numeric(radius), radius)
precondition(query is None or isinstance(query, basestring), query)
precondition(category is None or isinstance(category, basestring), category)
kwargs = {}
if radius:
kwargs["radius"] = radius
if query:
kwargs["q"] = query
if category:
kwargs["category"] = category
quargs = urllib.urlencode(kwargs)
if quargs:
quargs = "?" + quargs
endpoint = self._endpoint("search", lat=lat, lon=lon, quargs=quargs)
result = self._request(endpoint, "GET")[1]
fc = json_decode(result)
return [Feature.from_dict(f) for f in fc["features"]]
def get_context(self, lat, lon):
precondition(is_valid_lat(lat), lat)
precondition(is_valid_lon(lon), lon)
endpoint = self._endpoint('context', lat=lat, lon=lon)
return json_decode(self._request(endpoint, "GET")[1])