/// <summary>
/// 更新文件信息，并添加数据库更新记录
/// </summary>
/// <param name="file">待更新的文件信息</param>
/// <param name="operation">表示数据库操作类型（增删改）的枚举值</param>
/// <returns>更新成功则返回<c>true</c>，否则返回<c>false</c></returns>
private bool UpdateFile(DepartFiles file, Operation operation)
{
return(_departFilesBll.ExecuteTranscation(() =>
{
var s = _departFilesBll.Update(file);
if (s)
{
var d = new DbUpdateLog
{
OperateType = (int)operation,
TableName = nameof(DepartFiles),
TargetId = file.Id,
UpdateTime = DateTime.Now
};
return _dbUpdateLogBll.Add(d).Id > 0;
}
return false;
}));
}
public ApiReturns Post()
{
var request = HttpContext.Current.Request;
var directoryId = request["dir"].ToInt32();
if (directoryId <= 0)
{
return(ApiReturns.BadRequest());
}
var directory = _dirBll.QuerySingle(directoryId);
if (directory == null)
{
return(ApiReturns.BadRequest());
}
var files = request.Files;
if (files.Count > 0)
{
var loginUser = LoginStatus.GetLoginUser();
var fileIsCommom = LoginStatus.IsSuperAdminLogin() && directory.IsCommon;
var file = files[0];
var fileName = Path.GetFileNameWithoutExtension(file.FileName);
var departFile = new DepartFiles
{
DepartmentId = LoginStatus.IsSuperAdminLogin() ? 0 : loginUser.DepartmentId.Value,
FileDirectoryId = directoryId, FileName = fileName, IsCommon = fileIsCommom, SystemUserId = loginUser.Id, LastModifyTime = DateTime.Now
};
#region 的文件已存在于服务器
// 对比哈希值，相同文件只保存一份副本
var hash = file.InputStream.GetMd5();
var dbFile = _fileInfoBll.QuerySingle(f => f.IsDeleted == false && f.HashCode == hash);
if (dbFile != null)
{
departFile.FileInfoId = dbFile.Id;
var addSuccess = _departFilesBll.ExecuteTranscation(() =>
{
if (_departFilesBll.Add(departFile).Id > 0)
{
var log = new DbUpdateLog
{
OperateType = (int)Operation.Insert,
TableName = nameof(DepartFiles),
TargetId = departFile.Id,
UpdateTime = DateTime.Now
};
return(_dbUpdateLogBll.Add(log).Id > 0);
}
return(false);
});
var res = _fileBll.QuerySingle(departFile.Id);
if (addSuccess)
{
return(ApiReturns.Created(res));
}
return(ApiReturns.BadRequest());
}
#endregion
#region 的文件未存在于服务器
// 路径
var d = DateTime.Now;
var ext = Path.GetExtension(file.FileName);
var dir = $"/docs/{d.Year}-{d.Month}-{d.Day}/";
var name = $"{Guid.NewGuid()}{ext}";
var path = $"{WebConfig.FileUploadDir}{dir}";
if (!Directory.Exists(path))
{
lock (_lockObj)
{
Directory.CreateDirectory(path);
}
}
// 保存文件到磁盘
file.SaveAs($"{path}{name}");
// 保存到数据库
var serverFileName = $"{dir}{name}";
dbFile = new Guoli.Fs.Model.FileInfo
{
Extension = ext,
HashCode = hash,
Path = serverFileName,
Size = file.InputStream.Length,
UploadTime = d
};
var success = _fileInfoBll.ExecuteTranscation(() =>
{
var s = _fileInfoBll.Add(dbFile).Id > 0;
if (s)
{
departFile.FileInfoId = dbFile.Id;
if (_departFilesBll.Add(departFile).Id > 0)
{
var log = new DbUpdateLog
{
OperateType = (int)Operation.Insert,
TableName = nameof(DepartFiles),
TargetId = departFile.Id,
UpdateTime = DateTime.Now
};
return(_dbUpdateLogBll.Add(log).Id > 0);
}
return(false);
}
return(false);
});
if (success)
{
var data = _fileBll.QuerySingle(departFile.Id);
return(ApiReturns.Created(data));
}
return(ApiReturns.BadRequest());
#endregion
}
return(ApiReturns.BadRequest());
}