public TParameters ForPage(int page)
{
if (!HasPage(page)) return null;
var p = QueryStringParser<TParameters>.Copy(_parameters);
p.Page = page;
return p;
}
public TParameters NextPage()
{
if (!HasNextPage) return null;
var p = QueryStringParser<TParameters>.Copy(_parameters);
p.Page += 1;
return p;
}
public TParameters PreviousPage()
{
if (!HasPreviousPage) return null;
var p = QueryStringParser<TParameters>.Copy(_parameters);
p.Page -= 1;
return p;
}
public TParameters FirstPage()
{
var p = QueryStringParser <TParameters> .Copy(_parameters);
p.Page = 1;
return(p);
}
public TParameters LastPage()
{
var p = QueryStringParser <TParameters> .Copy(_parameters);
p.Page = (int)Pages;
return(p);
}
protected AggregationFilterModel <TParameters> SignificantTermsFilterFor(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 = propertyInfo.Value.GetValue(Parameters);
var model = new AggregationFilterModel <TParameters>();
var agg = AggregationHelper.SignificantTerms(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);
}
public TParameters ForPage(int page)
{
if (!HasPage(page))
{
return(null);
}
var p = QueryStringParser <TParameters> .Copy(_parameters);
p.Page = page;
return(p);
}
public TParameters PreviousPage()
{
if (!HasPreviousPage)
{
return(null);
}
var p = QueryStringParser <TParameters> .Copy(_parameters);
p.Page -= 1;
return(p);
}
public TParameters NextPage()
{
if (!HasNextPage)
{
return(null);
}
var p = QueryStringParser <TParameters> .Copy(_parameters);
p.Page += 1;
return(p);
}
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);
}