public SearchResultViewModel(SearchResultDTO dto)
{
this.Result = dto;
this.Pagination = new PaginationViewModel()
{
Controller = "Search",
Action = "BookSearch",
EntityCount = dto.Results.Count,
EntityName = "Results",
Page = dto.Page,
PageSize = 10,
TotalPages = (int)(dto.Total / 10)
};
}
internal SearchResultDTO Subset(int page, int pageSize)
{
if (this.Results.Count < (page * pageSize))
{
return(SearchResultDTO.Empty());
}
return(new SearchResultDTO()
{
Id = this.Id,
SearchTerm = this.SearchTerm,
Results = this.Results.Skip(page * pageSize).Take(pageSize).ToArray(),
Page = page + 1,
Total = this.Total
});
}
public SearchResultDTO Search(string term, int? userId = null)
{
try
{
term = term.Trim();
if (String.IsNullOrWhiteSpace(term) || term.Length < 3)
{
return SearchResultDTO.Empty();
}
using (var db = new SDCContext())
{
UserProfile profile = null;
if (userId != null)
profile = db.UserProfiles.FirstOrDefault(p => p.UserId == (int)userId);
var booksResult = db.Books
.Where(b => b.Shelf.IsVisible && b.Title.Contains(term))
.Select(b => new SearchResultBookDTO()
{
Id = b.Id,
OwnerId = b.Shelf.Owner.UserId,
OwnerUserName = b.Shelf.Owner.UserName,
OwnerRating = 3.5f,
OwnerAvatarUrl = b.Shelf.Owner.Avatar.Url,
Title = b.Title,
Authors = b.Authors.Select(a => new AuthorDTO()
{
Id = a.Id,
Name = a.Name
}).ToList(),
BookPictures = b.Pictures.Select(p => new BookPictureDTO()
{
Url = p.Url
}).ToList()
}).ToArray();
for(int i = 0; i < booksResult.Length; i++)
{
booksResult[i].Rank = i + 1;
}
BookSearch search = new BookSearch()
{
Date = DateTime.Now,
Term = term,
User = profile
};
db.BookSearches.Add(search);
db.SaveChanges();
var result = new SearchResultDTO(search.Id, booksResult, search.Term);
_cache.Add(result.Id, result);
return result.Subset(0, 10);
}
}
catch (Exception ex)
{
//return empty result
return SearchResultDTO.Empty();
}
}
public void Add(int id, SearchResultDTO result)
{
_cache.Add(id, result);
}
public SearchResultViewModel(SearchResultDTO dto)
{
this.Result = dto;
this.Pagination = new PaginationViewModel()
{
Controller = "Search",
Action = "BookSearch",
EntityCount = dto.Results.Count,
EntityName = "Results",
Page = dto.Page,
PageSize = 10,
TotalPages = (int)(dto.Total / 10)
};
}