public static IndexQuery ApplyFilters(this IndexQuery query, IEnumerable <Filter> parsedFilters, CultureInfo culture)
{
foreach (var filter in parsedFilters)
{
if (filter.UseRangeFiltering)
{
var fromValue = ModelConverter.ParseFieldValue(query.ModelType, filter.Fields, filter.FromValue);
var toValue = ModelConverter.ParseFieldValue(query.ModelType, filter.Fields, filter.ToValue);
query = query.WhereBetween(filter.Fields, fromValue, toValue, filter.FromInclusive, filter.ToInclusive);
}
else
{
if (String.IsNullOrWhiteSpace(filter.FieldValue))
{
continue;
}
// 如果需要分析输入，则需要调用Search方法。动态的Custom Field字段都不用分析输入，其实只有SearchText字段才需要分析输入
if (filter.AnalyzeInput)
{
// 如果一个Filter对应了多个字段，则要同时对它们进行搜索，然后做OR操作
foreach (var field in filter.GetFields())
{
query = query.Or(_ => _.Search(field, filter.FieldValue));
}
}
else
{
var filterValue = ModelConverter.ParseFieldValue(query.ModelType, filter.Fields, filter.FieldValue);
if (filterValue != null)
{
foreach (var field in filter.GetFields())
{
query = query.Or(_ => _.WhereEquals(field, filterValue));
}
}
}
}
}
return(query);
}
