def nearby(self,
latitude,
longitude,
distance_range=5,
ids=None,
exclude_ids=None):
if latitude is None or longitude is None:
return []
queryset = self.get_queryset().filter(is_registered=True,
is_visible=True)
if ids is not None:
queryset = queryset.filter(id__in=ids)
if exclude_ids is not None:
queryset = queryset.exclude(id__in=exclude_ids)
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=distance_range)) * 2
latitude, longitude = float(latitude), float(longitude)
queryset = queryset.filter(
clatitude__range=(latitude - rough_distance,
latitude + rough_distance),
clongitude__range=(longitude - rough_distance,
longitude + rough_distance))
result = []
for customer in queryset:
exact_distance = distance.distance(
(latitude, longitude),
(customer.clatitude, customer.clongitude)).m
result.append((customer, exact_distance))
result.sort(key=lambda x: x[1])
return result
def near(self, latitude=None, longitude=None, distance_range=None, skip_box_approximation=False):
"""
@param float latitude
@param float longitude
@param float distance_range in kilometers | Distance instance
"""
query_set = super(BaseLocationManager, self).get_query_set()
if not (latitude and longitude and distance_range):
return query_set.none()
if not skip_box_approximation:
lat, lon, dis = self._format_params(latitude, longitude, distance_range)
# approximate the area where to search for places
rough_distance = units.degrees(arcminutes=units.nautical(kilometers=dis)) * 2
query_set = query_set.filter(
latitude__range=(
lat - rough_distance,
lat + rough_distance
),
longitude__range=(
lon - rough_distance,
lon + rough_distance
)
)
return query_set
def near(self,
latitude=None,
longitude=None,
distance_range=None,
skip_box_approximation=False):
"""
@param float latitude
@param float longitude
@param float distance_range in kilometers | Distance instance
"""
query_set = super(BaseLocationManager, self).get_query_set()
if not (latitude and longitude and distance_range):
return query_set.none()
if not skip_box_approximation:
lat, lon, dis = self._format_params(latitude, longitude,
distance_range)
# approximate the area where to search for places
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=dis)) * 2
query_set = query_set.filter(
latitude__range=(lat - rough_distance, lat + rough_distance),
longitude__range=(lon - rough_distance, lon + rough_distance))
return query_set
def near(self, latitude=None, longitude=None, distance_range=10):
queryset = super(LocationManager, self).get_queryset()
if not (latitude and longitude and distance_range):
return queryset.none()
latitude = float(latitude)
longitude = float(longitude)
distance_range = float(distance_range)
rough_distance = units.degrees(arcminutes=units.nautical(kilometers=distance_range)) * 2
queryset = queryset.filter(
latitude__range=(
latitude - rough_distance,
latitude + rough_distance
),
longitude__range=(
longitude - rough_distance,
longitude + rough_distance
)
)
locations = []
for location in queryset:
if location.latitude and location.longitude:
exact_distance = distance.distance(
(latitude, longitude),
(location.latitude, location.longitude)
).kilometers
if exact_distance <= distance_range:
locations.append(location)
queryset = queryset.filter(id__in=[l.id for l in locations])
return queryset
def get_nearby_scouts(latitude, longitude, distance_range=50, queryset=None):
from scouts.models import Scout
if queryset is None:
queryset = Scout.objects.all()
rough_distance = units.degrees(arcminutes=units.nautical(kilometers=distance_range)) * 2
latitude, longitude = float(latitude), float(longitude)
queryset = queryset.filter(work_address__latitude__range=(latitude - rough_distance, latitude + rough_distance),
work_address__longitude__range=(longitude - rough_distance, longitude + rough_distance))
return queryset
def nearby(latitude, longitude, distance_range=5):
queryset = House.objects.filter(visible=True)
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=distance_range)) * 2
latitude, longitude = float(latitude), float(longitude)
queryset = queryset.filter(
address__latitude__range=(latitude - rough_distance,
latitude + rough_distance),
address__longitude__range=(longitude - rough_distance,
longitude + rough_distance))
return queryset
def near(self, location, distance=None):
"""
Returns a list of items in the :class:`QuerySet` which are
within the given distance of the given location. Does NOT return
a :class:`QuerySet`.
Accepts either a :class:`Place` instance or a (lat, lon) tuple
for location. Also accepts a Place instance with a
``nearby_distance`` attribute added (as returned from
:func:`loci.utils.geolocate_request`); in this case, distance
need not be explicitly passed.
"""
# figure out if we received an object or tuple and get the location
try:
(latitude, longitude) = location.location
except AttributeError:
(latitude, longitude) = location
# make sure we have a valid location
if not (latitude and longitude):
return []
# get the passed distance or attached to Place
if distance == None:
try:
distance = location.nearby_distance
except AttributeError:
raise ValueError('Distance must be attached or passed explicitly.')
# prune down the set of places before checking precisely
#deg_lat = Decimal(str(degrees(arcminutes=nautical(miles=distance))))
deg_lat = degrees(arcminutes=nautical(miles=distance))
lat_range = (latitude - deg_lat, latitude + deg_lat)
long_range = (longitude - deg_lat * 2, longitude + deg_lat * 2)
queryset = self.filter(
latitude__range=lat_range,
longitude__range=long_range
)
locations = []
for location in queryset:
if location.latitude and location.longitude:
location.exact_distance = geopy.distance.distance(
(latitude, longitude),
(location.latitude, location.longitude)
)
if location.exact_distance.miles <= distance:
locations.append(location)
return locations
def refreshtrips(request):
latitude = request.POST.get('latitude')
longitude = request.POST.get('longitude')
request.session['latitude'] = latitude
request.session['longitude'] = longitude
lat = float(latitude)
long = float(longitude)
distance_range = float(ALLOWABLE_DIST)
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=distance_range)) * 2
all_trips = Trip.objects.filter(
date__date=timezone.now() + timedelta(hours=9),
status='ACT',
meetup_pt__latitude__range=(lat - rough_distance,
lat + rough_distance),
meetup_pt__longitude__range=(
long - rough_distance, long + rough_distance)).annotate(
avail_passengers=MAX_PASSENGERS - Count('passenger')).filter(
avail_passengers__lte=4,
avail_passengers__gt=0).order_by('avail_passengers')
nearby = []
for trip in all_trips:
if trip.meetup_pt.latitude and trip.meetup_pt.longitude:
exact_distance = distance.distance(
(lat, long),
(trip.meetup_pt.latitude, trip.meetup_pt.longitude)).kilometers
if exact_distance <= distance_range:
trip.distance = exact_distance
nearby.append(trip)
sorted(nearby, key=lambda m: m.distance)
trip_cards = loader.render_to_string('discover/tripcards.html',
{'trips': nearby})
output_data = {'trip_cards': trip_cards}
return JsonResponse(output_data)
def near_by_lat_lng(self, latitude, longitude, proximity):
"""
Find service provider within latitude and longitude with distance
:param latitude: latitude
:param longitude: longitude
:param proximity: distance
:return: service-provider queryset
"""
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=proximity)) * 2
queryset = self.get_queryset() \
.exclude(latitude=None) \
.exclude(longitude=None) \
.filter(
latitude__range=(latitude - rough_distance, latitude + rough_distance),
longitude__range=(longitude - rough_distance, longitude + rough_distance)
)
return queryset.filter(id__in=[
obj.id for obj in queryset if proximity >= distance.distance((
latitude, longitude), (obj.latitude, obj.longitude)).kilometers
])
def organize(request):
if request.POST.get('latitude') is not None and request.POST.get(
'longitude') is not None:
latitude = request.POST.get('latitude')
longitude = request.POST.get('longitude')
request.session['latitude'] = latitude
request.session['longitude'] = longitude
lat = float(latitude)
long = float(longitude)
distance_range = float(ALLOWABLE_DIST)
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=distance_range)) * 2
all_meetup_pts = Meetup.objects.filter(
latitude__range=(lat - rough_distance, lat + rough_distance),
longitude__range=(long - rough_distance, long + rough_distance))
nearby = []
for meetup_pt in all_meetup_pts:
if meetup_pt.latitude and meetup_pt.longitude:
exact_distance = distance.distance(
(lat, long),
(meetup_pt.latitude, meetup_pt.longitude)).kilometers
if exact_distance <= distance_range:
meetup_pt.distance = exact_distance
nearby.append(meetup_pt)
sorted(nearby, key=lambda m: m.distance)
context = {'nearby_meetups': nearby}
return render(request, 'discover/organize.html', context)
else:
return HttpResponseRedirect(reverse('discover:index'))
def distance_to_degrees(d):
#Just an approximation, but speeds up clustering by a huge amount and doesnt introduce much error
#over small distances
return degrees(arcminutes=nautical(meters=d))
def nautical(self):
return units.nautical(kilometers=self.kilometers)
def nautical(self):
return units.nautical(kilometers=self.kilometers)
def nautical(self): # pylint: disable=C0111
return units.nautical(kilometers=self.kilometers)
def get_bounding_box(latitude, longitude, distancekm):
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=distancekm)) * 2
return latitude - rough_distance, latitude + rough_distance, longitude - rough_distance, longitude + rough_distance
def get_offset(distance_range=10):
rough_distance = units.degrees(arcminutes=units.nautical(kilometers=distance_range)) * 2
return rough_distance
def createTrip(request):
organizer = request.POST.get('organizer')
selected_meetup = request.POST.get('choice')
organizer = organizer.strip(' ')
latitude = request.session['latitude']
longitude = request.session['longitude']
lat = float(latitude)
long = float(longitude)
if len(organizer) == 0:
distance_range = float(ALLOWABLE_DIST)
rough_distance = units.degrees(arcminutes=units.nautical(
kilometers=distance_range)) * 2
all_meetup_pts = Meetup.objects.filter(
latitude__range=(lat - rough_distance, lat + rough_distance),
longitude__range=(long - rough_distance, long + rough_distance))
nearby = []
for meetup_pt in all_meetup_pts:
if meetup_pt.latitude and meetup_pt.longitude:
exact_distance = distance.distance(
(lat, long),
(meetup_pt.latitude, meetup_pt.longitude)).kilometers
if exact_distance <= distance_range:
meetup_pt.distance = exact_distance
nearby.append(meetup_pt)
sorted(nearby, key=lambda m: m.distance)
context = {
'nearby_meetups':
nearby,
'error_message':
"You did not enter a name. Please type your name or nickname."
}
return render(request, 'discover/organize.html', context)
else:
new_meetup = get_object_or_404(Meetup, pk=selected_meetup)
new_trip = Trip(meetup_pt=new_meetup,
organizer=organizer,
date=timezone.now() + timedelta(hours=9))
new_trip.save()
ip = request.session['host_ip']
new_passenger = Passenger(trip=new_trip,
name=organizer,
ip=ip,
latitude=lat,
longitude=long)
new_passenger.save()
request.session['joined_trip'] = new_trip.id
request.session['passenger'] = organizer
request.session['passengerID'] = new_passenger.id
return HttpResponseRedirect(
reverse('discover:detail', args=(new_trip.id, )))
arcseconds = units.arcseconds(arcminutes=arcminutes - int(arcminutes))
format_dict = dict(
symbols,
degrees=degrees,
minutes=abs(arcminutes),
seconds=abs(arcseconds)
)
return fmt % format_dict
DISTANCE_FORMAT = "%(magnitude)s%(unit)s"
DISTANCE_UNITS = {
'km': lambda d: d,
'm': lambda d: units.meters(kilometers=d),
'mi': lambda d: units.miles(kilometers=d),
'ft': lambda d: units.feet(kilometers=d),
'nm': lambda d: units.nautical(kilometers=d),
'nmi': lambda d: units.nautical(kilometers=d)
}
def format_distance(kilometers, fmt=DISTANCE_FORMAT, unit='km'):
"""
TODO docs.
"""
magnitude = DISTANCE_UNITS[unit](kilometers)
return fmt % {'magnitude': magnitude, 'unit': unit}
_DIRECTIONS = [
('north', 'N'),
('north by east', 'NbE'),
('north-northeast', 'NNE'),
('northeast by north', 'NEbN'),
('northeast', 'NE'),
def nautical(self): # pylint: disable=C0111
return units.nautical(kilometers=self.kilometers)
def search(request):
context = RequestContext(request)
if request.method == 'POST':
search_text = request.POST['search_text']
search_type = request.POST['type']
granted=Permission.objects.filter(permitted__exact=request.user)
granted=[i.owner for i in granted]
#Keyword Search Option
if search_type == 'all':
q1 = Bulletin.objects.filter(
Q(title__icontains=search_text) |
Q(text_description__icontains=search_text))
query = q1.order_by('date_created', 'title')
# Title Search Option
if search_type == 'title':
# if text is contained within title
q1 = Bulletin.objects.filter(title__icontains=search_text)
# order by publication date, then headline
query =q1.order_by('date_created', 'title')
#Author Search Option
if search_type == 'author':
# gets author id based on search of username
author = User.objects.get(username__exact=search_text)
id = author.id
# query db to find all bulletins with given id
q1 = Bulletin.objects.filter(author_id__exact=id)
# order by publication date, then headline
query =q1.order_by('date_created', 'title')
if search_type == 'date':
# if text is contained within title
q1 = Bulletin.objects.filter(date_created=search_text)
# order by publication date, then headline
query =q1.order_by('date_created', 'title')
if search_type =='location':
lat,long=location_lookup(search_text)
rough_distance = units.degrees(arcminutes=units.nautical(miles=50))
q1=Bulletin.objects.filter(Q(lat__range=(lat-rough_distance,lat+rough_distance))|Q(long__range=(long-rough_distance,long+rough_distance)))
query=q1.order_by('date_created','title')
bulletins=[]
for b in query:
# if b.author in granted:
bulletins.append(b)
# # print string
# print "bulletins"
# print bulletins
return render_to_response('search.html', {'bulletins':bulletins}, context)
else:
#The request is not a POST so it's probably a GET request
return render_to_response('search.html', {}, context)
