public async Task <IActionResult> Search(string term)
{
term = (term ?? "").Trim();
IEnumerable <SearchResult> results;
if (term == "")
{
results = Array.Empty <SearchResult>();
}
else
{
var allPosts = await _postRepository.GetAll();
results = _postIndexer.GenerateIndexContent(allPosts).Search(term).Select(
m => new SearchResult(allPosts.First(p => p.Id == m.Key), m.Weight, m.SourceLocationsIfRecorded)
);
}
return(View(
"Search",
new SearchResultsModel(
term,
results.ToNonNullImmutableList(),
await _postRepository.GetMostRecentStubs(5),
await _postRepository.GetStubs(null, null, true),
await _postRepository.GetArchiveLinks(),
_siteConfiguration.OptionalCanonicalLinkBase,
_siteConfiguration.GetGoogleAnalyticsIdIfAny(Request),
_postContentCache
)
));
}
private CachedPostIndexContent GetData(NonNullImmutableList <Post> posts)
{
if (posts == null)
{
throw new ArgumentNullException(nameof(posts));
}
var cachedData = _cache.TryToRetrieve();
if ((cachedData != null) && cachedData.IsValidForPostsData(posts))
{
return(cachedData);
}
var postIndexData = _postIndexer.GenerateIndexContent(posts);
var liveData = new CachedPostIndexContent(
postIndexData,
posts
);
_cache.Store(liveData);
return(liveData);
}