public async Task <IActionResult> SearchPagination([FromQuery] AdminDTO_Filter filter)
 {
     return(Ok(await _adminService.SearchPagination(filter)));
 }
        public async Task <ServiceResponseWithPagination <List <AdminDTO_ToReturn> > > SearchPagination(AdminDTO_Filter filter)
        {
            var admin = _dbContext.Admins.AsQueryable();

            if (!string.IsNullOrWhiteSpace(filter.Name))
            {
                admin = admin.Where(x => x.Name.Contains(filter.Name));
            }
            admin = admin.Where(x => x.Email.Contains(filter.Email));

            // 2. Order => Order by
            if (!string.IsNullOrWhiteSpace(filter.OrderingField))
            {
                try
                {
                    admin = admin.OrderBy($"{filter.OrderingField} {(filter.AscendingOrder ? "ascending" : "descending")}");
                }
                catch
                {
                    return(ResponseResultWithPagination.Failure <List <AdminDTO_ToReturn> >($"Could not order by field: {filter.OrderingField}"));
                }
            }

            var paginationResult = await _httpContext.HttpContext.InsertPaginationParametersInResponse(admin, filter.RecordsPerPage, filter.Page);

            // var custom = await cus.Paginate(filter).ToListAsync();
            var result = _mapper.Map <List <AdminDTO_ToReturn> >(await admin.Paginate(filter).ToListAsync());

            return(ResponseResultWithPagination.Success(result, paginationResult));
        }