public override ITypeSearch <FindProduct> ApplyFilter(ITypeSearch <FindProduct> query)
{
if (string.IsNullOrEmpty(FieldName) == false)
{
string fullFieldName = query.Client.GetFullFieldName(FieldName, typeof(double));
switch (FieldOperator)
{
case NumericOperatorSelectionFactory.OperatorNames.GreaterThan:
RangeFilter <double> greaterThanFilter = RangeFilter.Create(fullFieldName, FieldValue, double.MaxValue);
greaterThanFilter.IncludeLower = false;
greaterThanFilter.IncludeUpper = true;
query = query.Filter(greaterThanFilter);
break;
case NumericOperatorSelectionFactory.OperatorNames.LessThan:
RangeFilter <double> lessThanFilter = RangeFilter.Create(fullFieldName, double.MinValue, FieldValue);
lessThanFilter.IncludeLower = false;
lessThanFilter.IncludeUpper = true;
query = query.Filter(lessThanFilter);
break;
default:
case NumericOperatorSelectionFactory.OperatorNames.Equal:
var termFilter = new TermFilter(fullFieldName, FieldValue);
query = query.Filter(termFilter);
break;
}
}
return(query);
}
private static FilterBuilder <T> GetOrFilterForNumericRange <T>(ITypeSearch <T> query,
IEnumerable <SelectableNumericRange> range,
string fieldName,
Type type)
{
// Appends type convention to field name (like "$$string")
var client = query.Client;
var fullFieldName = client.GetFullFieldName(fieldName, type);
var filters = new List <Filter>();
foreach (var rangeItem in range)
{
var rangeFilter = RangeFilter.Create(fullFieldName,
rangeItem.From ?? 0,
rangeItem.To ?? double.MaxValue);
rangeFilter.IncludeUpper = false;
filters.Add(rangeFilter);
}
var orFilter = new OrFilter(filters);
var filterBuilder = new FilterBuilder <T>(client, orFilter);
return(filterBuilder);
}
public override Filter GetFilter()
{
if (string.IsNullOrEmpty(FieldName))
{
return(null);
}
var fullFieldName = SearchClient.Instance.GetFullFieldName(FieldName, typeof(double));
switch (FieldOperator)
{
case NumericOperatorSelectionFactory.OperatorNames.GreaterThan:
var greaterThanFilter = RangeFilter.Create(fullFieldName, FieldValue, double.MaxValue);
greaterThanFilter.IncludeLower = false;
greaterThanFilter.IncludeUpper = true;
return(greaterThanFilter);
case NumericOperatorSelectionFactory.OperatorNames.LessThan:
var lessThanFilter = RangeFilter.Create(fullFieldName, double.MinValue, FieldValue);
lessThanFilter.IncludeLower = false;
lessThanFilter.IncludeUpper = true;
return(lessThanFilter);
default:
return(new TermFilter(fullFieldName, FieldValue));
}
}
private IEnumerable <EPiServer.Find.Api.Querying.Filter> GetFilters(Commerce.Models.Blocks.ProductSearchBlock productSearchBlock)
{
var filters = new List <EPiServer.Find.Api.Querying.Filter>();
if (productSearchBlock.Nodes?.FilteredItems != null && productSearchBlock.Nodes.FilteredItems.Any())
{
var nodes = productSearchBlock.Nodes.FilteredItems.Select(x => x.GetContent()).OfType <NodeContent>().ToList();
var outlines = nodes.Select(x => _searchService.GetOutline(x.Code)).ToList();
var outlineFilters = outlines.Select(s => new PrefixFilter("Outline$$string.lowercase", s.ToLowerInvariant()))
.ToList();
if (outlineFilters.Count == 1)
{
filters.Add(outlineFilters.First());
}
else
{
filters.Add(new OrFilter(outlineFilters.ToArray()));
}
}
if (productSearchBlock.MinPrice > 0 || productSearchBlock.MaxPrice > 0)
{
var rangeFilter = RangeFilter.Create("DefaultPrice$$number",
productSearchBlock.MinPrice.ToString(),
productSearchBlock.MaxPrice == 0 ? double.MaxValue.ToString() : productSearchBlock.MaxPrice.ToString());
rangeFilter.IncludeUpper = true;
filters.Add(rangeFilter);
}
if (productSearchBlock.BrandFilter != null)
{
var brands = productSearchBlock.BrandFilter.Split(',');
var brandFilters = brands.Select(s => new PrefixFilter("Brand$$string.lowercase", s.ToLowerInvariant())).ToList();
if (brandFilters.Count == 1)
{
filters.Add(brandFilters.First());
}
else
{
filters.Add(new OrFilter(brandFilters.ToArray()));
}
}
if (productSearchBlock.Filters == null)
{
return(filters);
}
foreach (var item in productSearchBlock.Filters.FilteredItems)
{
if (item.GetContent() is FilterBaseBlock filter)
{
filters.Add(filter.GetFilter());
}
}
return(filters);
}
private Filter CreateLessThanFilter(string fieldName, Expression valueExpression, bool includeUpper)
{
var valueGetter = Expression.Lambda(valueExpression, false, null).Compile();
var value = valueGetter.DynamicInvoke();
if (value is string)
{
}
else if (value is int)
{
var rangeFilter = RangeFilter.Create(fieldName, Int32.MinValue, (int)value);
rangeFilter.IncludeUpper = includeUpper;
return(rangeFilter);
}
else if (value is DateTime)
{
var rangeFilter = RangeFilter.Create(fieldName, DateTime.MinValue, (DateTime)value);
rangeFilter.IncludeUpper = includeUpper;
return(rangeFilter);
}
return(null);
}
private Filter GetSelectedFilter(List <FacetGroupOption> options, string currentField)
{
var filters = new List <Filter>();
var facets = _facetRegistry.GetFacetDefinitions();
foreach (var facetGroupOption in options)
{
if (facetGroupOption.GroupFieldName.Equals(currentField))
{
continue;
}
var filter = facets.FirstOrDefault(x => x.FieldName.Equals(facetGroupOption.GroupFieldName));
if (filter == null)
{
continue;
}
if (!facetGroupOption.Facets.Any(x => x.Selected))
{
continue;
}
if (filter is FacetStringDefinition)
{
filters.Add(new TermsFilter(_findClient.GetFullFieldName(facetGroupOption.GroupFieldName, typeof(string)),
facetGroupOption.Facets.Where(x => x.Selected).Select(x => FieldFilterValue.Create(x.Name))));
}
else if (filter is FacetStringListDefinition)
{
var termFilters = facetGroupOption.Facets.Where(x => x.Selected)
.Select(s => new TermFilter(facetGroupOption.GroupFieldName, FieldFilterValue.Create(s.Name)))
.Cast <Filter>()
.ToList();
filters.AddRange(termFilters);
}
else if (filter is FacetNumericRangeDefinition)
{
var rangeFilters = filter as FacetNumericRangeDefinition;
foreach (var selectedRange in facetGroupOption.Facets.Where(x => x.Selected))
{
var rangeFilter = rangeFilters.Range.FirstOrDefault(x => x.Id.Equals(selectedRange.Key.Split(':')[1]));
if (rangeFilter == null)
{
continue;
}
filters.Add(RangeFilter.Create(_findClient.GetFullFieldName(facetGroupOption.GroupFieldName, typeof(double)),
rangeFilter.From ?? 0,
rangeFilter.To ?? double.MaxValue));
}
}
}
if (!filters.Any())
{
return(null);
}
if (filters.Count == 1)
{
return(filters.FirstOrDefault());
}
var boolFilter = new BoolFilter();
foreach (var filter in filters)
{
boolFilter.Should.Add(filter);
}
return(boolFilter);
}