public async Task <IHttpActionResult> GetListByCurrentUser(int skip = 0, int take = 30)
{
if (take > 50)
{
take = 50;
}
var userId = User.Identity.GetUserId();
var couponLogs = await _dbContext.CouponLogs.Where(cl => cl.UserId == userId)
.OrderByDescending(cl => cl.CreateTime)
.Skip(() => skip)
.Take(() => take)
.ToListAsync();
var result = new List <CouponLogDto>(couponLogs.Count);
foreach (var couponLog in couponLogs)
{
var dto = new CouponLogDto
{
Id = couponLog.Id,
Event = couponLog.Event,
Change = couponLog.Change,
Balance = couponLog.Balance,
CreateTime = couponLog.CreateTime,
Description = JsonConvert.DeserializeObject(couponLog.Description)
};
await ParseDescription(dto);
result.Add(dto);
}
var response = Request.CreateResponse(HttpStatusCode.OK, result);
var totalCount = await _dbContext.CouponLogs.CountAsync(cl => cl.UserId == userId);
response.Headers.SetTotalCount(totalCount);
return(ResponseMessage(response));
}
/// <summary>
/// 解析各种类型的 Description
/// </summary>
/// <param name="dto">
/// <see cref="CouponLogDto" />
/// </param>
private async Task ParseDescription(CouponLogDto dto)
{
try
{
Func <object, JObject> jObject =
o => JObject.FromObject(o, new JsonSerializer {
NullValueHandling = NullValueHandling.Ignore
});
if (dto.Description.ArticleId != null)
{
var article = await _dbContext.Articles.FindAsync((string)dto.Description.ArticleId);
if (article != null)
{
((JObject)dto.Description).Remove("ArticleId");
dto.Description.Article = jObject(new ArticleDto
{
Id = article.Id,
Title = article.Title,
SequenceNumberForAuthor = article.SequenceNumberForAuthor,
AuthorIdCode = article.Principal.User.IdCode
});
}
}
if (dto.Description.CommentId != null)
{
var comment = await _dbContext.Comments.FindAsync((string)dto.Description.CommentId);
if (comment != null)
{
((JObject)dto.Description).Remove("CommentId");
dto.Description.Comment = jObject(new CommentDto
{
Id = comment.Id,
Content =
comment.Content.Length > 15
? $"{comment.Content.Substring(0, 15)} …"
: comment.Content,
ArticleAuthorIdCode = comment.Article.Principal.User.IdCode,
ArticleSequenceNumberForAuthor = comment.Article.SequenceNumberForAuthor,
SequenceNumberForArticle = comment.SequenceNumberForArticle
});
}
}
if (dto.Description.OperatorId != null)
{
var operatorId = (string)dto.Description.OperatorId;
var user = await _userManager.FindByIdAsync(operatorId);
if (user != null)
{
((JObject)dto.Description).Remove("OperatorId");
dto.Description.Operotor = jObject(new UserDto
{
Id = user.Id,
UserName = user.UserName,
IdCode = user.IdCode
});
}
}
if (dto.Description.UserId != null)
{
var targetUserId = (string)dto.Description.UserId;
var user = await _userManager.FindByIdAsync(targetUserId);
if (user != null)
{
((JObject)dto.Description).Remove("UserId");
dto.Description.User = jObject(new UserDto
{
Id = user.Id,
UserName = user.UserName,
IdCode = user.IdCode
});
}
}
if (dto.Description.InviterId != null)
{
var inviterId = (string)dto.Description.InviterId;
var user = await _userManager.FindByIdAsync(inviterId);
if (user != null)
{
((JObject)dto.Description).Remove("InviterId");
dto.Description.Inviter = jObject(new UserDto
{
Id = user.Id,
UserName = user.UserName,
IdCode = user.IdCode
});
}
}
if (dto.Description.CouponGiftId != null)
{
var gift = await _dbContext.CouponGifts.FindAsync((string)dto.Description.CouponGiftId);
if (gift != null)
{
((JObject)dto.Description).Remove("CouponGiftId");
dto.Description.CouponGift = jObject(new CouponGiftDto
{
Id = gift.Id,
Name = gift.Name
});
}
}
}
catch (RuntimeBinderException)
{
}
}
