public void Should_Use_Phrase_Suggester_If_Is_Phrase_And_First_Search_Does_Not_Return_Anything_And_Suggested_Phrase_Is_Not_Null()
{
const string wrongPhrase = "web from";
const string correctPhrase = "web form";
var correctPhraseSearchResults = new List <SearchResult> {
new SearchResult {
Id = 123
}, new SearchResult {
Id = 345
}
};
var topPhrase = new RankedPhrase
{
Rank = correctPhraseSearchResults.Count,
Content = correctPhrase,
Results = correctPhraseSearchResults
};
_siteSearchService.Setup(y => y.GetRawResults(wrongPhrase, false)).Returns(new List <SearchResult>());//return empty list
_phraseSuggester.Setup(x => x.GetTopPhraseAndResults(wrongPhrase)).Returns(topPhrase);
_controller = GetController(true);
var result = _controller.GetResult(wrongPhrase, null, TopKeywords) as PartialViewResult;
SiteSearchVm vm = (SiteSearchVm)result.Model;
_phraseSuggester.Verify(x => x.GetTopPhraseAndResults(wrongPhrase), Times.Once);
Assert.AreEqual(vm.SpellCheckerSuggestionWord, topPhrase.Content);
Assert.AreEqual(vm.SearchedTerm, wrongPhrase);
}
public ActionResult GetResult(string keywords, bool?isstrict, string topSearchKeywords)
{
bool isStrictQuery = isstrict ?? false;
//TODO: use Input Sanitizer instead
var keywordsCollection = InputSanitiser.ExtractWordsFromInput(keywords).ToList(); //sanitise input
bool isPhrase = keywordsCollection.Count > 1;
var sanitisedKeywordsAsString = string.Join(" ", keywordsCollection);
var didYouMean = sanitisedKeywordsAsString;
//First search exact word
var results = _siteSearchService.GetRawResults(sanitisedKeywordsAsString, false).ToList();
//If no reasults and q is not strict - search fuzzy but display the corrected word
if (!results.Any() && !isStrictQuery && keywordsCollection.Any())
{
if (isPhrase)
{
RankedPhrase topPhrase = PhraseSuggester.GetTopPhraseAndResults(sanitisedKeywordsAsString);
if (topPhrase != null)
{
didYouMean = topPhrase.Content;
results = topPhrase.Results.ToList();
}
}
else
{
didYouMean = _spellChecker.Check(sanitisedKeywordsAsString);
results = _siteSearchService.GetRawResults(sanitisedKeywordsAsString, true).ToList();
}
}
//Finally if still no results return the partial with top search words suggestions
if (!results.Any())
{
List <string> topSearchedTerms = topSearchKeywords.Split(',').ToList();
var vm = new NoResultsFoundVm {
SearchedTerm = sanitisedKeywordsAsString, Keywords = topSearchedTerms
};
return(PartialView("_NoSearchResultsAndSuggestions", vm));
}
else
{
var contentResults = _siteSearchService.ConvertSearchResultToPublishedContentWithTemplate(results, ContentCache, UmbracoContext);
var mappedResults = _siteSearchService.MapToCustomResults(contentResults);
var vm = new SiteSearchVm
{
SearchedTerm = sanitisedKeywordsAsString,
SpellCheckerSuggestionWord = didYouMean,
SearcResults = mappedResults,
};
return(PartialView("_SiteSearchResultsAndSuggestionsPartial", vm));
}
}
public RankedPhrase GetTopPhraseAndResults(string keywords)
{
var termsInPhrase = InputSanitiser.ExtractWordsFromInput(keywords).Take(3).ToList(); //get up to 3 real words and sanitised
var termsTop5Candidates = new List <List <string> >();
foreach (var word in termsInPhrase)
{
//if exact match exists it will be included in the top suggestions list as well as the other 5
var topSpellCheckerSuggestions = _spellChecker.GetTopSuggestions(word, 4);
var topSpellCheckerSuggestionsStoWordsCleaned = InputSanitiser.GetRealWordsOnly(topSpellCheckerSuggestions);
termsTop5Candidates.Add(topSpellCheckerSuggestionsStoWordsCleaned);
}
//The inutual null is used so that the first cross-join will have something to build on (with strings, null + s = s)
IEnumerable <string> combinations = new List <string> {
null
};
foreach (var list in termsTop5Candidates)
{
// cross join the current result with each member of the next list
combinations = combinations.SelectMany(o => list.Select(s => o + " " + s));
}
//for reference: https://stackoverflow.com/questions/12251874/when-to-use-a-parallel-foreach-loop-instead-of-a-regular-foreach
var phraseseAndResults = new ConcurrentBag <RankedPhrase>();
Parallel.ForEach(combinations, currentCombination =>
{
var trimmedItem = currentCombination.Trim(); //trim white space
var searchResultsItems = _siteSearchService.GetRawResults(trimmedItem, false).ToList();
var phrase = new RankedPhrase
{
Rank = searchResultsItems.Count,
Results = searchResultsItems,
Content = trimmedItem
};
phraseseAndResults.Add(phrase);
});
return(phraseseAndResults.OrderByDescending(x => x.Rank).FirstOrDefault());
}
