public static async Task <Paginated <TResult> > PaginateAsync <TSource, TResult>(this IQueryable <TSource> query, int size, int current, Func <TSource, TResult> target, StartFrom startFrom = StartFrom.FirstPage)
{
var total = await query.CountAsync();
List <TResult> result;
if (total > 0)
{
var skipped = PaginationExtensions
.CalculateSkipped(total, size, current, startFrom);
result = await Task.Run(() => query.Skip(skipped)
.Take(size)
.Select(target)
.ToList());
}
else
{
result = await Task.Run(() => query.Select(target)
.ToList());
}
return(new Paginated <TResult>(result, current, size, total));
}
public virtual async Task <IResult> GetAllAsync(Expression <Func <T, bool> > predicate = null, PaginationQuery paginationQuery = null)
{
var data = repository.Get(predicate, paginationQuery);
if (data == null)
{
return(new Result(HttpStatusCode.NotFound, "NotFound"));
}
var list = await data.ToListAsync();
var count = await repository.CountAsync();
return(PaginationExtensions.CreatePaginationResult(list, HttpStatusCode.OK, paginationQuery, count, uriService));
}
