protected AggregationFilterModel <TParameters> MultiTermFilterFor(string filterName)
{
var propertyInfo = ParameterPropertyCache.FirstOrDefault(c => c.Key == filterName);
if (string.IsNullOrWhiteSpace(propertyInfo.Key))
{
throw new ArgumentOutOfRangeException(nameof(filterName), $"Unable to find parameter named '{filterName}', ensure that either the parameters has a matching property or that a JsonProperty attribute is assigned");
}
var filterValue = ((IEnumerable <string>)propertyInfo.Value.GetValue(Parameters))?.ToList() ?? Enumerable.Empty <string>();
var model = new AggregationFilterModel <TParameters>();
var agg = AggregationHelper.Terms(filterName);
if (agg == null)
{
return(model);
}
model.Name = filterName;
model.Meta = agg.Meta;
model.Type = agg.SearchifyAggregationType();
model.DisplayName = agg.SearchifyDisplayName() ?? model.Name;
model.Items = agg.Buckets.Select(item =>
{
var parameters = QueryStringParser <TParameters> .Copy(Parameters);
var term = item.Key;
var value = item.Key;
if (FilterField.TryParse(item.Key, out FilterField filterField))
{
term = filterField.Text;
value = filterField.Value;
}
var filterValueList = new HashSet <string>(filterValue);
var isSelected = filterValue.Contains(value);
if (isSelected)
{
filterValueList.Remove(value);
}
else
{
filterValueList.Add(value);
}
propertyInfo.Value.SetValue(parameters, filterValueList);
return(new TermFilterItemModel <TParameters>()
{
Term = term,
Value = value,
DocCount = item.DocCount,
Selected = isSelected,
Parameters = parameters
});
}).ToList();
return(model);
}
protected AggregationFilterModel <TParameters> TermFilterFor(string filterName)
{
var propertyInfo = ParameterPropertyCache.FirstOrDefault(c => c.Key == filterName);
if (string.IsNullOrWhiteSpace(propertyInfo.Key))
{
throw new ArgumentOutOfRangeException(nameof(filterName), $"Unable to find parameter named '{filterName}', ensure that either the parameters has a matching property or that a JsonProperty attribute is assigned");
}
if (propertyInfo.Value.PropertyType != typeof(string))
{
return(MultiTermFilterFor(filterName));
}
var filterValue = propertyInfo.Value.GetValue(Parameters);
var model = new AggregationFilterModel <TParameters>();
var agg = AggregationHelper.Terms(filterName);
if (agg == null)
{
return(model);
}
model.Name = filterName;
model.Meta = agg.Meta;
model.Type = agg.SearchifyAggregationType();
model.DisplayName = agg.SearchifyDisplayName() ?? model.Name;
model.Items = agg.Buckets.Select(item =>
{
var parameters = QueryStringParser <TParameters> .Copy(Parameters);
var term = item.Key;
var value = item.Key;
if (FilterField.TryParse(item.Key, out FilterField filterField))
{
term = filterField.Text;
value = filterField.Value;
}
var isSelected = value.Equals(filterValue);
if (propertyInfo.Value != null)
{
var convertablePropertyInfo = Nullable.GetUnderlyingType(propertyInfo.Value.PropertyType) ??
propertyInfo.Value.PropertyType;
propertyInfo.Value.SetValue(parameters,
isSelected ? null : Convert.ChangeType(value, convertablePropertyInfo));
}
return(new TermFilterItemModel <TParameters>()
{
Term = term,
Value = value,
DocCount = item.DocCount,
Selected = isSelected,
Parameters = parameters
});
}).ToList();
return(model);
}
