public async Task <IEnumerable <IPostSummary> > GetPostSummaries(IPostFilter postFilter)
{
var allPostMetadata = await _postSummaryRepository.GetPostSummaries();
var query = allPostMetadata.AsQueryable();
var filterTag = postFilter.Tag;
if (!string.IsNullOrWhiteSpace(filterTag))
{
query = query.Where(x => x.Tags.Contains(filterTag, StringComparer.InvariantCultureIgnoreCase));
}
var filterAuthor = postFilter.Author;
if (!string.IsNullOrWhiteSpace(filterAuthor))
{
query = query.Where(x => x.Author.Equals(filterAuthor, StringComparison.InvariantCultureIgnoreCase));
}
var filterYear = postFilter.Year;
if (filterYear.HasValue)
{
query = query.Where(x => x.PublishedOn.Year == filterYear.Value);
}
var filterMonth = postFilter.Month;
if (filterMonth.HasValue)
{
query = query.Where(x => x.PublishedOn.Month == filterMonth.Value);
}
var filterLanguageCode = postFilter.LanguageCode;
if (!string.IsNullOrWhiteSpace(filterLanguageCode))
{
query = query.Where(x => x.LanguageCode.Equals(filterLanguageCode, StringComparison.InvariantCultureIgnoreCase));
}
var filterIncludesDraft = postFilter.IncludesDraft;
query = query.Where(x => x.IsDraft == filterIncludesDraft);
var postSummaries = query.ToList();
return(postSummaries);
}
public async Task <IEnumerable <IPostSummary> > GetPostSummaries()
{
var isEmpty = !_postSummaries.Any();
if (isEmpty)
{
var postSummaries = await _postSummaryRepository.GetPostSummaries();
foreach (var postSummary in postSummaries)
{
_postSummaries.Add(postSummary);
}
}
return(_postSummaries);
}
public IEnumerable <PostSummary> GetPostSummaries()
{
return(repository.GetPostSummaries());
}