def get(self):
login_user = get_login_user()
# bbox is in GeoJson notation [minlon,minlat,maxlon,maxlat]
bbox = self.request.get('bbox',"0,0,0,0").split(',')
minlat = float(bbox[1])
minlon = float(bbox[0])
maxlat = float(bbox[3])
maxlon = float(bbox[2])
geojson = {"type": "FeatureCollection"}
geojson['features'] = []
box = geo.geotypes.Box(maxlat,maxlon,minlat,minlon)
for geoix in GeoIndex.bounding_box_fetch(GeoIndex.all(), box, max_results=111):
try:
con = geocode_contact(geoix.contact_ref, include_attic=False, login_user=login_user)
if con:
# geoconding successful
geojson['features'].extend(con)
else:
nongeo.append(encode_contact(contact_ref, login_user, include_attic=False))
except db.ReferencePropertyResolveError:
logging.critical("AttributeError while encoding")
geojson["bbox"] = bbox
logging.debug("Return %s objects" % (len(geojson['features'])))
# encode and return
# self.response.headers['Content-Type'] = "application/json"
self.response.headers['Content-Type'] = "text/plain"
self.response.out.write(json.dumps(geojson))
def get(self):
login_user = get_login_user()
query = self.request.get('query',"")
include_attic = True if self.request.get('attic',None) else False
# data structures for data transport to client
nongeo = []
geojson = []
geojson = {"type": "FeatureCollection"}
geojson['features'] = []
minlat = 0.0
maxlat = 0.0
minlon = 0.0
maxlon = 0.0
if query:
cis = lookup_contacts(query, include_attic)
# Save the query result in memcache together with the information about
# which portion of it we are displaying (the first result_size datasets as
# it is a fresh query!)
if login_user:
if not memcache.set('query', {'query': query, 'offset': 0, 'results': cis}, time=5000, namespace=str(login_user.key())):
logging.error("memcache failed")
# fetch a number of data from the results
for contact in db.get(cis[0:settings.RESULT_SIZE]):
if not contact:
# may happen if index is not up to date
logging.warning("Query returned invalid contact reference")
continue
try:
con = geocode_contact(contact, include_attic=include_attic, login_user=login_user)
if con:
# geoconding successful
geojson['features'].extend(con)
else:
nongeo.append(encode_contact(contact_ref, login_user, include_attic=False))
except db.ReferencePropertyResolveError:
logging.critical("AttributeError while encoding")
# calculate bounding box (viewport)
for feature in geojson['features']:
coords = feature['geometry']['coordinates']
if feature['id'] == 'display':
# initialize to first point
if minlon == 0.0:
minlon = coords[0]
maxlon = coords[0]
if coords[0] > maxlon:
maxlon = coords[0]
if coords[0] < minlon:
minlon = coords[0]
if minlat == 0.0:
minlat = coords[1]
maxlat = coords[1]
if coords[1] > maxlat:
maxlat = coords[1]
if coords[1] < minlat:
minlat = coords[1]
geojson["bbox"] = [minlon,minlat,maxlon,maxlat]
# encode and return
# self.response.headers['Content-Type'] = "application/json"
self.response.headers['Content-Type'] = "text/plain"
self.response.out.write(json.dumps(geojson, indent= 2 if settings.DEBUG else 0))
