DD.WellWorkover.Cloud/AsbCloudInfrastructure/Services/FileCategoryService.cs

using AsbCloudApp.Data;
using AsbCloudApp.Services;
using AsbCloudDb.Model;
using AsbCloudInfrastructure.Repository;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;

namespace AsbCloudInfrastructure.Services
{
    public class FileCategoryService : CrudCacheServiceBase<FileCategoryDto, FileCategory>, IFileCategoryService
    {
        public FileCategoryService(IAsbCloudDbContext context)
            : base(context)
        {
        }

        public async Task<IEnumerable<FileCategoryDto>> GetWellCaseCategoriesAsync(CancellationToken token)
        {
            var cache = await GetCacheAsync(token)
                .ConfigureAwait(false);
            var dtos = cache
                .Where(kv => kv.Key >= 10000)
                .Where(kv => kv.Key <= 20000)
                .Select(kv => kv.Value);

            return dtos;
        }
    }
}