public override string ToString()
{
var fields = FacetFields?.Select(f => f.ToString()) ?? new string[0];
var facets = string.Join("|", fields);
return(base.ToString() + $"{NumberOfItemsToReturn}{StartPageIndex}{SortField}{facets}{SortDirection}");
}
/// <summary>
/// Creates a browser request from the passed in key value pair query string to handle a multirequest(ex. 2x f_category in query)
/// </summary>
/// <param name="querystring"></param>
/// <param name="page"></param>
/// <param name="useOffset"></param>
/// <param name="itemsPerPage"></param>
/// <returns></returns>
public virtual BrowseRequest CreateMultiBrowseRequest(List <KeyValuePair <string, string> > querystring, int?page = null, bool useOffset = false, int itemsPerPage = 10)
{
Query query = null;
var compiledQuery = BuildBaseQuery(querystring);
if (compiledQuery != null)
{
var luceneParams = compiledQuery as LuceneSearchCriteria;
query = luceneParams?.Query ?? throw new ArgumentException("Provided ISearchCriteria dos not match the allowed ISearchCriteria. Ensure you only use an ISearchCriteria created from the current SearcherProvider");
}
var offset = 0;
if (!page.HasValue)
{
page = 1;
}
var count = page.Value * itemsPerPage;
if (useOffset)
{
offset = (page.Value - 1) * itemsPerPage;
count = itemsPerPage;
}
var browseRequest = new BrowseRequest
{
Offset = offset,
Count = count,
Query = query,
FetchStoredFields = true,
Sort = DetermineSort(querystring)
};
var queryStringKeys = querystring.Select(x => x.Key);
foreach (var facetField in FacetFields.Where(x => queryStringKeys.Contains(x.Alias.FacetFieldAlias())))
{
var facetKvps = querystring.Where(x => x.Key == facetField.Alias.FacetFieldAlias());
foreach (var facetKvp in facetKvps)
{
var facetValue = facetKvp.Value;
if (!string.IsNullOrWhiteSpace(facetValue))
{
var sel = browseRequest.GetSelection(facetKvp.Key) ?? new BrowseSelection(facetKvp.Key);
sel.AddValue(facetValue);
sel.SelectionOperation = facetField.SelectionOperation;
browseRequest.RemoveSelection(facetKvp.Key);
browseRequest.AddSelection(sel);
}
}
}
return(browseRequest);
}
/// <summary>
/// Converts the browser request to facet groups and optionally looks up a display label for the facet value if a facetDisplayDictionaryValues is passed and has a value for the facet alias
/// </summary>
/// <param name="facetMap"></param>
/// <param name="facetDisplayDictionaryValues"></param>
/// <returns></returns>
public virtual IEnumerable <FacetGroup> ConvertToFacetGroups(Dictionary <string, IFacetAccessible> facetMap, Dictionary <string, Dictionary <string, string> > facetDisplayDictionaryValues = null)
{
var facetGroups = new List <FacetGroup>();
if (facetMap.Any())
{
foreach (var map in facetMap)
{
var facetField = FacetFields.FirstOrDefault(x => map.Key == x.Alias.FacetFieldAlias());
var group = new FacetGroup
{
Label = facetField?.Label,
Alias = map.Key
};
var sortOrder = 0;
foreach (var f in map.Value.GetFacets())
{
var facetName = f.Value.ToString();
sortOrder++;
if (facetDisplayDictionaryValues != null)
{
if (facetDisplayDictionaryValues.ContainsKey(map.Key) &&
facetDisplayDictionaryValues[map.Key].ContainsKey(f.Value.ToString()))
{
facetName = facetDisplayDictionaryValues[map.Key][f.Value.ToString()];
}
}
else if (facetField != null)
{
facetName = facetField.CreateValueLabel(f.Value.ToString());
}
var facet = new Facet
{
Label = facetName,
Value = f.Value.ToString(),
Count = f.HitCount,
Sort = sortOrder
};
group.Facets.Add(facet);
}
facetGroups.Add(group);
}
}
return(facetGroups);
}
/// <summary>
/// Converts the selection to a FacetSelection and optionally looks up a display label for the facet value if a facetDisplayDictionaryValues is passed and has a value for the facet alias
/// </summary>
/// <param name="browseSelection"></param>
/// <param name="facetDisplayDictionaryValues"></param>
/// <returns></returns>
public virtual Dictionary <string, IEnumerable <FacetSelection> > ConvertToFacetSelection(BrowseSelection[] browseSelection, Dictionary <string, Dictionary <string, string> > facetDisplayDictionaryValues = null)
{
var facetSelection = new Dictionary <string, IEnumerable <FacetSelection> >();
var selections = browseSelection.ToDictionary(x => x.FieldName, x => x.Values);
if (selections.Any())
{
foreach (var selection in selections)
{
var selectedItems = new List <FacetSelection>();
foreach (var selectedValue in selection.Value)
{
var facetName = selectedValue;
var facetField = FacetFields.FirstOrDefault(x => selection.Key == x.Alias.FacetFieldAlias());
if (facetDisplayDictionaryValues != null)
{
if (facetDisplayDictionaryValues.ContainsKey(selection.Key) && facetDisplayDictionaryValues[selection.Key].ContainsKey(selectedValue))
{
facetName = facetDisplayDictionaryValues[selection.Key][selectedValue];
}
}
else if (facetField != null)
{
facetName = facetField.CreateValueLabel(selectedValue);
}
var facetSel = new FacetSelection
{
Label = facetName,
Value = selectedValue
};
selectedItems.Add(facetSel);
}
facetSelection.Add(selection.Key, selectedItems);
}
}
return(facetSelection);
}