public DelegateExpressionFilterBuilder(Expression <Func <TSource, Filter> > filterExpression, Func <Filter, Func <string, Filter> > expressionFilterDelegate) : base(null)
{
FieldNameMethod = (expression, conventions) => {
// highjack fieldname method to parse expression since we now know the conventions
var parser = new FilterExpressionParser(conventions);
var filter = parser.GetFilter(filterExpression);
filterDelegate = expressionFilterDelegate(filter);
return(conventions.FieldNameConvention.GetFieldName(expression));
};
}
public static ITypeSearch <TSource> Filter <TSource, TListItem>(this ITypeSearch <TSource> search,
Expression <Func <TSource, NestedList <TListItem> > > nestedExpression,
Expression <Func <TListItem, Filter> > filterExpression)
{
search.ValidateNotNullArgument("search");
nestedExpression.ValidateNotNullArgument("nestedExpression");
filterExpression.ValidateNotNullArgument("filterExpression");
var path = search.Client.Conventions.FieldNameConvention.GetFieldName(nestedExpression);
if (!path.EndsWith("$$nested"))
{
throw new ArgumentException(string.Format("{0} is not a nested object.", nestedExpression.GetReturnType().Name));
}
var parser = new FilterExpressionParser(search.Client.Conventions);
var filter = parser.GetFilter(filterExpression);
PrependPathOnNestedFilters(path, filter);
var nestedFilter = new NestedFilter(path, filter);
return(search.Filter(nestedFilter));
}
public static ITypeSearch <TSource> TermsFacetFor <TSource>(
this ITypeSearch <TSource> search,
Expression <Func <TSource, string> > fieldSelector, Expression <Func <TSource, Filter> > filterExpression, Action <TermsFacetFilterRequest> facetRequestAction = null)
{
filterExpression.ValidateNotNullArgument("filterExpression");
var filterExpressionParser = new FilterExpressionParser(search.Client.Conventions);
var facetFilter = filterExpressionParser.GetFilter(filterExpression);
var facetName = fieldSelector.GetFieldPath();
var fieldName = search.Client.Conventions.FieldNameConvention.GetFieldName(fieldSelector);
return(new Search <TSource, IQuery>(search, context =>
{
var facetRequest = new TermsFacetFilterRequest(facetName, facetFilter)
{
Field = fieldName
};
if (facetRequestAction.IsNotNull())
{
facetRequestAction(facetRequest);
}
context.RequestBody.Facets.Add(facetRequest);
}));
}