public IActionResult PutMessage(int id, [FromBody] MessageUpdateModel model)
{
try
{
var message = _mapper.Map <Message>(model);
message.Id = id;
// Update
_messageService.Update(message);
return(Ok());
}
catch (Exception ex)
{
return(BadRequest(new { message = ex.Message }));
}
}
public async Task <MessageViewModel> UpdateAsync(Guid id, MessageUpdateModel model)
{
if (model is null)
{
throw new ArgumentNullException(nameof(model));
}
var message = await _dbContext.Messages.SingleOrDefaultAsync(x => x.Guid.Equals(id)).ConfigureAwait(false);
message.Payload = model.Payload;
await _dbContext.SaveChangesAsync().ConfigureAwait(false);
return(new MessageViewModel()
{
CreationDate = message.CreationDate,
Id = message.Guid.ToString(),
Payload = message.Payload,
UserName = message.FromUser.FullName ?? ""
});
}
public ActionResult UpdateMessage(Guid messageId, string context, Guid[] deleteImages, HttpPostedFileBase[] images)
{
// 驗證
if (context.Length > 300)
{
return(this.Json(PoResult.Fail("訊息內容超出限制，最多為300字")));
}
// 驗證
if (context.Length == 0 && images == null && deleteImages == null)
{
return(this.Json(PoResult.Fail("沒有可以儲存的訊息內容")));
}
// 組裝model
var messageUpdateModel = new MessageUpdateModel()
{
MessageId = messageId,
Context = context,
DeleteAttachmentIds = deleteImages?.ToList() ?? new List <Guid>()
};
if (images != null)
{
foreach (var image in images)
{
if (image == null || image.ContentLength == 0)
{
continue;
}
if (image.ContentLength > 1024 * 1024)
{
return(this.Json(PoResult.Fail($"檔案「{image.FileName}」大小超出限制，最大1MB")));
}
try
{
using (new System.Drawing.Bitmap(image.InputStream))
{
// ignore
}
}
catch (Exception)
{
return(this.Json(PoResult.Fail($"檔案「{image.FileName}」格式錯誤，請確定上傳的是圖片")));
}
image.InputStream.Position = 0;
}
foreach (var image in images)
{
var fileResult = image.SaveAsLocal("AttachmentImages");
messageUpdateModel.NewAttachments.Add(($"{fileResult.OriName}{fileResult.Extension}", fileResult.VirtualPath));
}
}
var updateResult = this.messageService.UpdateMessage(this.CurrentUser.Id, messageUpdateModel);
if (updateResult.Success)
{
var messageListVmResult = this.messageService.GetMessageListVm(updateResult.Data.Id);
if (messageListVmResult.Success)
{
this.hub.Clients.All.updateMessage(messageListVmResult.Data.MessageId, "updateMessage", messageListVmResult.Data);
}
}
else
{
if (images != null)
{
foreach (var image in messageUpdateModel.NewAttachments)
{
var mapPath = this.Server.MapPath(image.Path);
if (System.IO.File.Exists(mapPath))
{
System.IO.File.Delete(mapPath);
}
}
}
}
return(this.Json(new PoResult {
Success = updateResult.Success, Message = updateResult.Message
}));
}
