public PagedResponse <RatingResponse> CreateProductRatingsPaginatedResponse(
int productId,
PaginationFilter pagination,
GetAllRatingsFilter filter,
SortingFilter sorting,
List <RatingResponse> response)
{
var nextPage = pagination.PageNumber >= 1
? uriService.GetProductRatingUri(productId,
new PaginationQuery(pagination.PageNumber + 1, pagination.PageSize),
filter,
sorting)
.ToString()
: null;
var previousPage = pagination.PageNumber - 1 >= 1
? uriService.GetProductRatingUri(productId,
new PaginationQuery(pagination.PageNumber - 1, pagination.PageSize),
filter,
sorting)
.ToString()
: null;
return(CreatePaginatedResponse(pagination, sorting, response, nextPage, previousPage));
}
private string GenerateKey(
GetAllRatingsFilter filter,
PaginationFilter pagination,
SortingFilter sortingFilter)
{
return(MyModelCacheKey.GeneratePaginationQuery(pagination)
.GenerateRatingFilterQuery(filter)
.GenerateSortingQuery(sortingFilter));
}
public Task <List <Rating> > GetAllAsync(
GetAllRatingsFilter filter,
PaginationFilter pagination,
SortingFilter sortingFilter)
{
IQueryable <Rating> queryable = Context.Ratings;
queryable = FilterProducts(queryable, filter);
queryable = ApplySort(queryable, sortingFilter);
return(queryable.ApplyPagination(pagination).ToListAsync());
}
public Uri GetProductRatingUri(
int productId,
PaginationQuery pagination,
GetAllRatingsFilter filter,
SortingFilter sorting)
{
var uri = new Uri(baseUri
+ ApiRoutes.ProductRatings.GetAll.Replace("{productId}", productId.ToString()));
var modifiedUri = uri.AbsoluteUri.GeneratePaginationQuery(pagination)
.GenerateRatingFilterQuery(filter)
.GenerateSortingQuery(sorting);
return(new Uri(modifiedUri));
}
public Task <List <Rating> > GetAllAsync(
GetAllRatingsFilter filter,
PaginationFilter pagination,
SortingFilter sortingFilter)
{
var key = GenerateKey(filter, pagination, sortingFilter);
return(cache.GetOrCreate(key,
entry =>
{
entry.SetOptions(cacheOptions);
return ratingRepository.GetAllAsync(filter, pagination, sortingFilter);
}));
}
private IQueryable <Rating> FilterProducts(IQueryable <Rating> queryable, GetAllRatingsFilter filter)
{
if (!string.IsNullOrWhiteSpace(filter.Comment))
{
queryable = queryable.Where(x => x.Comment.ToLower().Contains(filter.Comment.ToLower()));
}
if (filter.RatingFrom.HasValue)
{
queryable = queryable.Where(x => x.Value >= filter.RatingFrom.Value);
}
if (filter.RatingTo.HasValue)
{
queryable = queryable.Where(x => x.Value <= filter.RatingTo.Value);
}
return(queryable);
}
public static string GenerateRatingFilterQuery(this string uri, GetAllRatingsFilter filter)
{
return(uri.AddQuery(nameof(filter.Comment), filter.Comment)
.AddQuery(nameof(filter.RatingFrom), filter.RatingFrom)
.AddQuery(nameof(filter.RatingTo), filter.RatingTo));
}
