async Task <NormalResult> Update(
BaseChannel <IRfid> channel_param,
List <Entity> update_entities,
CancellationToken token)
{
if (update_entities.Count > 0)
{
try
{
BaseChannel <IRfid> channel = channel_param;
if (channel == null)
{
channel = RfidManager.GetChannel();
}
try
{
await FillBookFields(channel, update_entities, token);
}
finally
{
if (channel_param == null)
{
RfidManager.ReturnChannel(channel);
}
}
}
catch (Exception ex)
{
string error = $"填充图书信息时出现异常: {ex.Message}";
SetGlobalError("rfid", error);
return(new NormalResult {
Value = -1, ErrorInfo = error
});
}
// 自动检查 EAS 状态
// CheckEAS(update_entities);
}
return(new NormalResult());
}
// 填充读者信息的其他字段(第二阶段)
async Task <NormalResult> FillPatronDetail(bool force = false)
{
// 已经填充过了
if (_patron.PatronName != null &&
force == false)
{
return(new NormalResult());
}
string pii = _patron.PII;
if (string.IsNullOrEmpty(pii))
{
pii = _patron.UID;
}
if (string.IsNullOrEmpty(pii))
{
return(new NormalResult());
}
// return.Value:
// -1 出错
// 0 读者记录没有找到
// 1 成功
GetReaderInfoResult result = await
Task <GetReaderInfoResult> .Run(() =>
{
return(GetReaderInfo(pii));
});
if (result.Value != 1)
{
string error = $"读者 '{pii}': {result.ErrorInfo}";
SetPatronError("getreaderinfo", error);
return(new NormalResult {
Value = -1, ErrorInfo = error
});
}
SetPatronError("getreaderinfo", "");
if (string.IsNullOrEmpty(_patron.State) == true)
{
OpenDoor();
}
if (force)
{
_patron.PhotoPath = "";
}
// string old_photopath = _patron.PhotoPath;
Application.Current.Dispatcher.Invoke(new Action(() =>
{
_patron.SetPatronXml(result.RecPath, result.ReaderXml, result.Timestamp);
this.patronControl.SetBorrowed(result.ReaderXml);
}));
// 显示在借图书列表
List <Entity> entities = new List <Entity>();
foreach (Entity entity in this.patronControl.BorrowedEntities)
{
entities.Add(entity);
}
if (entities.Count > 0)
{
try
{
BaseChannel <IRfid> channel = RfidManager.GetChannel();
try
{
await FillBookFields(channel, entities, new CancellationToken());
}
finally
{
RfidManager.ReturnChannel(channel);
}
}
catch (Exception ex)
{
string error = $"填充读者信息时出现异常: {ex.Message}";
SetGlobalError("rfid", error);
return(new NormalResult {
Value = -1, ErrorInfo = error
});
}
}
#if NO
// 装载图象
if (old_photopath != _patron.PhotoPath)
{
Task.Run(() => {
LoadPhoto(_patron.PhotoPath);
});
}
#endif
return(new NormalResult());
}