private void HandleTermsFacet(string index, Facet facet, IndexQuery indexQuery, IndexSearcher currentIndexSearcher, Dictionary <string, IEnumerable <FacetValue> > results)
{
var terms = database.ExecuteGetTermsQuery(index,
facet.Name, null,
database.Configuration.MaxPageSize);
var termResults = new List <FacetValue>();
var baseQuery = database.IndexStorage.GetLuceneQuery(index, indexQuery, database.IndexQueryTriggers);
foreach (var term in terms)
{
var termQuery = new TermQuery(new Term(facet.Name, term));
var joinedQuery = new BooleanQuery();
joinedQuery.Add(baseQuery, BooleanClause.Occur.MUST);
joinedQuery.Add(termQuery, BooleanClause.Occur.MUST);
var topDocs = currentIndexSearcher.Search(joinedQuery, 1);
if (topDocs.TotalHits > 0)
{
termResults.Add(new FacetValue
{
Count = topDocs.TotalHits,
Range = term
});
}
}
results[facet.Name] = termResults;
}
public static FacetResults ExecuteGetTermsQuery(this DocumentDatabase self, string index, IndexQuery query, string facetSetupDoc, int start, int?pageSize)
{
var facetSetup = self.Documents.Get(facetSetupDoc, null);
if (facetSetup == null)
{
throw new InvalidOperationException("Could not find facets document: " + facetSetupDoc);
}
var facets = facetSetup.DataAsJson.JsonDeserialization <FacetSetup>().Facets;
return(self.ExecuteGetTermsQuery(index, query, facets, start, pageSize));
}
public static FacetResults ExecuteGetTermsQuery(this DocumentDatabase self,
string index, IndexQuery query, string facetSetupDoc)
{
return(self.ExecuteGetTermsQuery(index, query, facetSetupDoc, 0, null));
}
///<summary>
/// Get the possible terms for the specified field in the index
/// You can page through the results by use fromValue parameter as the
/// starting point for the next query
///</summary>
///<returns></returns>
public IEnumerable <string> GetTerms(string index, string field, string fromValue, int pageSize)
{
CurrentOperationContext.Headers.Value = OperationsHeaders;
return(database.ExecuteGetTermsQuery(index, field, fromValue, pageSize));
}
