/// <summary>
/// Take ISearchResults from examine, create title and body summary, and update SearchResultsCollection
/// </summary>
/// <param name="ResultsCollection">
/// The Results Collection.
/// </param>
/// <param name="SearchResults">
/// The search Results.
/// </param>
/// <param name="summariser">
/// The summarizer.
/// </param>
/// <param name="PageNumber">
/// The page Number.
/// </param>
/// <param name="pageLength">
/// The page Length.
/// </param>
/// <param name="Stopwatch">
/// The stopwatch.
/// </param>
private static SearchResultsCollection UpdateWithResults(SearchResultsCollection ResultsCollection, ISearchResults SearchResults, int PageNumber = 0, Stopwatch Stopwatch = null)
{
int pageLength = ResultsCollection.ConfigResultsPerPage;
if (ResultsCollection.AllResults == null || !ResultsCollection.AllResults.Any())
{
//Initial Search Population - Default behavior
//Check for empty results
var numResults = SearchResults.TotalItemCount;
if (numResults < 1)
{
ResultsCollection.IsError = true;
ResultsCollection.ErrorCode = "NoResults";
ResultsCollection.ErrorMsg = "Your search returned no results";
return(ResultsCollection);
}
else if (ResultsCollection.ErrorCode == "NoResults")
{
//Clear existing error, if present
ResultsCollection.IsError = false;
ResultsCollection.ErrorCode = "";
ResultsCollection.ErrorMsg = "";
}
//Convert from Examine Results to FullText Results
var convertedResults = ConvertSearchResultsToFullTextResults(SearchResults, ResultsCollection.Summarizer, PageNumber).ToList();
ResultsCollection.AllResults = convertedResults;
}
else
{
//Appending Results to existing collection
var convertedResults = ResultsCollection.AllResults.ToList();
//Convert from Examine Results to FullText Results
convertedResults.AddRange(ConvertSearchResultsToFullTextResults(SearchResults, ResultsCollection.Summarizer, PageNumber).ToList());
//Remove duplicates
ResultsCollection.AllResults = convertedResults.DistinctBy(N => N.NodeId);
}
//End Stopwatch
if (Stopwatch != null)
{
Stopwatch.Stop();
double millisecs = Stopwatch.ElapsedMilliseconds;
var numSecs = Math.Round((millisecs / 1000), 3);
ResultsCollection.TimeTakenSeconds = numSecs;
}
//Handle Paging
var allResults = ResultsCollection.AllResults.ToList();
var totalResults = allResults.Count();
ResultsCollection.TotalResults = totalResults;
var numPages = totalResults % pageLength == 0 ? totalResults / pageLength : totalResults / pageLength + 1;
ResultsCollection.NumOfPages = numPages;
var allPages = new List <SearchResultPage>();
//divide results into pages
if (pageLength > 0)
{
var toSkip = 0;
for (int i = 0; i < numPages; i++)
{
var page = new SearchResultPage();
page.PageNum = i + 1;
toSkip = i * pageLength;
page.Results = allResults.Skip(toSkip).Take(pageLength);
page.ResultsOnPage = page.Results.Count();
page.FirstResult = toSkip + 1;
var lastResult = toSkip + pageLength;
if (lastResult > totalResults)
{
lastResult = totalResults;
}
page.LastResult = lastResult;
allPages.Add(page);
}
}
else
{
ResultsCollection.IsError = true;
ResultsCollection.ErrorCode = "NoPage";
ResultsCollection.ErrorMsg = "Pagination incorrectly set up, no results on page" + PageNumber;
return(ResultsCollection);
}
ResultsCollection.Pages = allPages;
return(ResultsCollection);
}
