def query_area(point):
# point='36.589 -1.25435'
try:
data = {}
query1 = select([Soil], func.ST_Contains(Soil.wkb_geometry, func.ST_Transform(func.ST_GeomFromText(f'POINT({point})', 4326), 4326)))
result = conn.execute(query1)
for row in result:
data['pH'] =str(row.phaq)
data['drainage_desc'] = str(row.sdra_descr)
data['soil drainage'] =str(row.drai)
data['soil class'] =str(row.soil)
data['relief'] =str(row.lndf_descr)
data['slope'] =str(row.slop)
query_2 = session.query(Aez).filter(func.ST_Contains(Aez.wkb_geometry, func.ST_Transform(func.ST_GeomFromText(f'POINT({point})', 4326), 4326)))
for i in query_2:
print(f'Aez zone at this point is: ' , i.aezcode)
data['Aez'] = str(i.aezcode)
query_3 = session.query(Rain).filter(func.ST_Contains(func.Geometry(Rain.wkb_geometry),
func.Geometry(func.ST_GeographyFromText(f'POINT({point})'))))
for i in query_3:
print(f'Rain at this point is: ' , i.dn, 'mm')
data['rainfall'] = str(i.dn)
return Area(data)
except Exception as e:
return ErrorModel("Area Not Found")
def get(self):
"""Get all publications."""
params = publication_parser.parse_args()
has_lat = params.latitude is not None
has_lon = params.longitude is not None
has_dist = params.max_distance is not None
if any((has_lat, has_lon, has_dist)) and not all(
(has_lat, has_lon, has_dist)):
raise DistanceFilterMissingParameters
query = Publication.query # noqa: E712
for filter_name, filter_op in params.items():
if not isinstance(filter_op, FilterParam):
if filter_op is None:
continue
for i in publication_parser.args:
if i.name == filter_name:
filter_op = i.type(filter_op)
break
if not isinstance(filter_op, FilterParam):
continue
query = filter_op.apply(query, Publication)
if params.max_distance:
point = func.ST_GeographyFromText(
f"POINT({params.latitude} {params.longitude})", srid=4326)
query = query.filter(
func.ST_DWithin(Publication.loc, point,
params.max_distance * 1000))
return query.all()
def find_by_coordinates(self, db: Session, *, latitude: float,
longitude: float,
distance: float) -> Optional[List[Post]]:
POINT = f"POINT({longitude} {latitude})"
posts = db.query(self.model).filter(
func.ST_DistanceSphere(
Post.point, func.Geometry((
func.ST_GeographyFromText(POINT)))) < distance).all()
return posts
async def filter_pdv_by_lat_and_long(self, lat, lng):
return self.session.query(PDV) \
.filter(
func.ST_Intersects(
func.Geometry(PDV.coverage_area),
func.Geometry(
func.ST_GeographyFromText(f'POINT({lat} {lng})')
)
)
) \
.all()
def get_many(self,
db: Session,
*,
skip: int = 0,
limit: int = 100,
descending: bool = False,
lat: float,
lan: float,
distance: float) -> Optional[List[Post]]:
POINT = "POINT({} {})".format(lan, lat)
posts = db.query(self.model).filter(
func.ST_DistanceSphere(
Post.point, func.Geometry((func.ST_GeographyFromText(POINT))))
< distance).offset(skip).limit(limit).all()
return posts
def distance(self, location):
loc1 = cast(self.location_wkt, Geography)
loc2 = func.ST_GeographyFromText(location.to_wkt())
return db.session.scalar(func.ST_Distance(loc1, loc2))
def on_get(self, req, resp):
resp.content_type = falcon.MEDIA_JSON
session = Session()
matchedSymptoms = json.loads(req.get_header('symptoms'))
location = 'POINT('+req.get_header("latitude")+' '+req.get_header("longitude")+')'
clinicsForSympts = []
for symptId in matchedSymptoms:
clinicsForSympts.append(
set(
session.query(Clinic.id)
.join(Clinic.doctors)
.join(Doctor.specialities)
.join(Speciality.symptoms)
.filter(Symptom.id == symptId)
.distinct(Clinic.id)
.all()
)
)
matchedClinics = set(clinicsForSympts[0]).intersection(*clinicsForSympts)
closestClinic = session.query(Clinic.id) \
.filter(Clinic.id.in_(matchedClinics)) \
.order_by(asc(func.ST_Distance(Clinic.location, func.ST_GeographyFromText(location)))) \
.first()
if closestClinic is None:
resp.status = falcon.HTTP_404
resp.body = json.dumps({})
return
clinicOutput = session.query(Clinic).filter(Clinic.id == closestClinic.id).first()
matchedSpecs = session.query(Speciality.id) \
.join(Speciality.symptoms) \
.filter(Symptom.id.in_(matchedSymptoms)) \
.all()
doctorsOutput = session.query(Doctor).join(Doctor.clinics).join(Doctor.specialities) \
.filter(Clinic.id == closestClinic.id).filter(Speciality.id.in_(matchedSpecs)).distinct(Doctor.id).all()
specsOutput = session.query(Speciality.name).join(Clinic.doctors).join(Doctor.specialities)\
.filter(Clinic.id == closestClinic.id).filter(Speciality.id.in_(matchedSpecs))
losationStringX = session.query(func.ST_X(clinicOutput.location).label('x')).first()
losationStringY = session.query(func.ST_Y(clinicOutput.location).label('y')).first()
respp = {
'name': clinicOutput.name,
'location': str(losationStringX.x) + ' ' + str(losationStringY.y),
'opening': str(clinicOutput.opening),
'closure': str(clinicOutput.closure),
'doctors': [{
'fname': doctor.first_name,
'sname': doctor.second_name,
'pname': doctor.fathers_name,
'specialities': [
spec.name for spec in specsOutput.filter(Doctor.id == doctor.id).all()
],
'cabinet': doctor.cabinet,
'phone': doctor.phone
} for doctor in doctorsOutput
]
}
resp.body = json.dumps(respp)
resp.status = falcon.HTTP_200
