public async Task <List <NearestPlace> > GetNearest(string type, double lat, double lng, int distance)
{
var client = GetClient();
var searchDescriptor = new SearchDescriptor <Place>();
var dumper = new NestDescriptorDumper(client.RequestResponseSerializer);
searchDescriptor
.Index <Place>()
.Query(x =>
x.Bool(b =>
b.Must(
m => m.Term(t => t.Field(f => f.Types).Value(type)),
m => m.GeoDistance(g =>
g.Distance(new Distance(distance, DistanceUnit.Kilometers))
.Location(lat, lng)
.Field(f => f.Geometry.Location))
)
))
.ScriptFields(x =>
x.ScriptField("distance", s => s.Source($"doc['geometry.location'].arcDistance({lat},{lng})")))
.Source(true)
.DocValueFields(d =>
d.Field(f => f.Name)
.Field(f => f.Vicinity)
.Field(f => f.Types))
;
var sss = dumper.Dump <SearchDescriptor <Place> >(searchDescriptor);
var results = await client.SearchAsync <Place>(searchDescriptor);
return(ToNearestPlaces(results.Hits));
}
public async Task <TermVectorsModel> TermVectors(string queryString, double lat, double lng)
{
var client = GetClient();
var searchDescriptor = new SearchDescriptor <Place>();
var dumper = new NestDescriptorDumper(client.RequestResponseSerializer);
#region Search
QueryContainerDescriptor <Place> queryContainer = new QueryContainerDescriptor <Place>();
var query = queryContainer.Bool(b =>
b.Should(
q => q.Match(m => m.Field(f => f.Name).Query(queryString)),
q => q.Match(m => m.Field(f => f.Vicinity).Query(queryString))
)
);
Func <SortDescriptor <Place>, SortDescriptor <Place> > SortByGeo =
(SortDescriptor <Place> s) => s.GeoDistance(g =>
g.Field(f => f.Geometry.Location)
.DistanceType(GeoDistanceType.Arc)
.Unit(DistanceUnit.Kilometers)
.Order(SortOrder.Ascending)
.Points(new GeoLocation(lat, lng)));
Func <SortDescriptor <Place>, IPromise <IList <ISort> > > sort = s => SortByGeo(s.Descending(SortSpecialField.Score).Descending(d => d.Rating));
searchDescriptor
.Index <Place>()
.Query(x => query)
.Sort(sort)
.ScriptFields(x =>
x.ScriptField("distance", s => s.Source($"doc['geometry.location'].arcDistance({lat},{lng})")))
.Take(10)
.Source(true)
;
#endregion
var results = await client.SearchAsync <Place>(searchDescriptor);
var model = ToSearchPlaces(results.Hits).First();
var term = new TermVectorsDescriptor <Place>(IndexName.From <Place>(), TypeName.From <Place>());
term.Index <Place>()
.Id(Id.From(model))
.Fields(tf => tf.Vicinity, tf => tf.Name)
;
var sss = dumper.Dump <TermVectorsDescriptor <Place> >(term);
var termVectorsResult = await client.TermVectorsAsync <Place>(term);
return(ToTermVectorsModel(termVectorsResult, model));
}
public async Task <List <SearchPlace> > Search(string queryString, double lat, double lng, bool descRates)
{
var client = GetClient();
var searchDescriptor = new SearchDescriptor <Place>();
var dumper = new NestDescriptorDumper(client.RequestResponseSerializer);
QueryContainerDescriptor <Place> queryContainer = new QueryContainerDescriptor <Place>();
var query = queryContainer.Bool(b =>
b.Should(
q => q.Match(m => m.Field(f => f.Name).Query(queryString)),
q => q.Match(m => m.Field(f => f.Vicinity).Query(queryString))
)
);
Func <SortDescriptor <Place>, SortDescriptor <Place> > SortByGeo =
(SortDescriptor <Place> s) => s.GeoDistance(g =>
g.Field(f => f.Geometry.Location)
.DistanceType(GeoDistanceType.Arc)
.Unit(DistanceUnit.Kilometers)
.Order(SortOrder.Ascending)
.Points(new GeoLocation(lat, lng)));
Func <SortDescriptor <Place>, IPromise <IList <ISort> > > sort = s => SortByGeo(descRates ? s.Descending(SortSpecialField.Score).Descending(d => d.Rating) : s.Descending(SortSpecialField.Score));
searchDescriptor
.Index <Place>()
.Query(x => query)
.Sort(sort)
.ScriptFields(x =>
x.ScriptField("distance", s => s.Source($"doc['geometry.location'].arcDistance({lat},{lng})")))
.Take(10)
.Source(true)
;
var sss = dumper.Dump <SearchDescriptor <Place> >(searchDescriptor);
var results = await client.SearchAsync <Place>(searchDescriptor);
return(ToSearchPlaces(results.Hits));
}
public async Task <object> Aggregation(double lat, double lng)
{
var client = GetClient();
var searchDescriptor = new SearchDescriptor <Place>();
var dumper = new NestDescriptorDumper(client.RequestResponseSerializer);
var maxRating = "maxRating";
var minDistance = "minDistance";
searchDescriptor
.Aggregations(aggs =>
aggs
.Max(maxRating, max => max.Field(f => f.Rating))
.Min(minDistance, min => min.Script($"doc['geometry.location'].arcDistance({lat},{lng})"))
);
var results = await client.SearchAsync <Place>(searchDescriptor);
var sss = dumper.Dump <SearchDescriptor <Place> >(searchDescriptor);
return(results.Aggregations);
}
public async Task <List <BestPlaceAround> > GetBestPlacesAround(int distance, double lat, double lng, bool descRates, bool openedOnly)
{
var client = GetClient();
var searchDescriptor = new SearchDescriptor <Place>();
var dumper = new NestDescriptorDumper(client.RequestResponseSerializer);
Func <SortDescriptor <Place>, bool, SortDescriptor <Place> > SortByRates = (SortDescriptor <Place> s, bool desc) => desc?s.Descending(d => d.Rating) : s;
searchDescriptor
.Index <Place>()
.Query(x =>
x.Bool(b =>
b.Must(
m => m.Term(t => t.Field(f => f.OpeningHours.OpenNow).Value(openedOnly)),
m => m.GeoDistance(g =>
g.Distance(new Distance(distance, DistanceUnit.Kilometers))
.Location(lat, lng)
.Field(f => f.Geometry.Location))
)
))
.Sort(s => SortByRates(s.GeoDistance(g =>
g.Field(f => f.Geometry.Location)
.DistanceType(GeoDistanceType.Arc)
.Unit(DistanceUnit.Kilometers)
.Order(SortOrder.Ascending)
.Points(new GeoLocation(lat, lng))), descRates))
.ScriptFields(x =>
x.ScriptField("distance", s => s.Source($"doc['geometry.location'].arcDistance({lat},{lng})")))
.Take(10)
.Source(true)
;
var sss = dumper.Dump <SearchDescriptor <Place> >(searchDescriptor);
var results = await client.SearchAsync <Place>(searchDescriptor);
return(ToBestPlacesAround(results.Hits));
}
