public static HierarchicalFacet HierarchicalFacetFor <TResult>(this IHasFacetResults <TResult> facetsResultsContainer, Expression <Func <TResult, Hierarchy> > fieldSelector)
{
fieldSelector.ValidateNotNullArgument("fieldSelector");
var facetName = fieldSelector.GetFieldPath();
var facet = facetsResultsContainer.Facets[facetName] as TermsFacet;
var resultFacet = new HierarchicalFacet();
foreach (var termCount in facet)
{
if (!termCount.Term.Contains('/'))
{
// create top path
resultFacet.Add(new HierarchyPath {
Path = termCount.Term, Count = termCount.Count
});
}
else
{
// traversing paths
var sections = termCount.Term.Split('/');
var hierarchyPath = resultFacet.Where(x => x.Path.Equals(sections[0])).Single();
for (int i = 2; i < sections.Length; i++)
{
hierarchyPath = hierarchyPath.Where(x => x.Path.Equals(string.Join("/", sections.Take(i)))).Single();
}
hierarchyPath.Add(new HierarchyPath {
Path = termCount.Term, Count = termCount.Count
});
}
}
return(resultFacet);
}
void IShouldGetAHierarchicalFacet()
{
facet = result.HierarchicalFacetFor(x => x.Hierarchy);
facet.Should().NotBeEmpty();
}
void IShouldGetAHierarchicalFacet()
{
facet = result.HierarchicalFacetFor(x => x.Hierarchy);
facet.Should().NotBeEmpty();
}
