class Everyone(ImageContent):
"""A map of Accent users around the world."""
def __init__(self, geocoder):
self.geocoder = geocoder
self.google_maps = GoogleMaps(geocoder)
self.firestore = Firestore()
@cached(cache=TTLCache(maxsize=1, ttl=CACHE_TTL_S))
def _markers(self):
"""Returns a list of users' home locations to be shown on a map."""
markers = ''
for user in self.firestore.users():
try:
home = user.get('home')
location = self.geocoder[home]
# Use (city) name and region instead of latitude and longitude
# to avoid leaking users' exact addresses.
markers += '|%s,%s' % (location.name, location.region)
except (KeyError, AstralError):
# Skip users with address errors.
pass
return markers
def image(self, user):
"""Generates a map with user locations."""
return self.google_maps.map_image(markers=self._markers(),
marker_icon=MARKER_ICON_URL)
class Everyone(ImageContent):
"""A map of Accent users around the world."""
def __init__(self, geocoder):
self._geocoder = geocoder
self._google_maps = GoogleMaps(geocoder)
self._firestore = Firestore()
@cached(cache=TTLCache(maxsize=1, ttl=CACHE_TTL_S))
def _markers(self):
"""Returns a list of users' home locations to be shown on a map."""
markers = ''
for user in self._firestore.users():
try:
home = user.get('home')
location = self._geocoder[home]
# Use the latitude and longitude of the city name and region
# instead of the exact coordinates to anonymize user addresses.
city = '%s, %s' % (location.name, location.region)
anonymized = self._geocoder[city]
markers += '|%f,%f' % (anonymized.latitude,
anonymized.longitude)
except (KeyError, AstralError):
# Skip users with address errors.
pass
return markers
def image(self, user, width, height):
"""Generates a map with user locations."""
try:
return self._google_maps.map_image(width, height,
markers=self._markers(),
marker_icon=MARKER_ICON_URL)
except DataError as e:
raise ContentError(e)
