/// <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);
}
public void ClearSelection(string name)
{
m_req.RemoveSelection(name);
}