在Mongoose/node中保存对象(默认值)

Question

我有一个传递给函数的对象,并希望保存带有这些值的数据库条目,并选择具有一些默认值.

实际上......

我在Mongoose中有这样的模式:

var Log = new Schema({
  workspaceId    : { type: String, index: true },
  workspaceName  : { type: String, index: true },
  loginSession   : { type: String, index: true },
  loginToken     : { type: String, index: true },
  logLevel       : { type: Number, enum:[0,1] },
  errorName      : { type: String, index: true },
  message        : { type: String, index: true },
  reqInfo        : { type: String },
  data           : { type: String },
  loggedOn       : { type: Date, index: true },
});
mongoose.model('Log', Log);

要在这张桌子上写东西,我有类似的东西:

exports.Logger = function(logEntry){
  var Log = mongoose.model("Log"),
      req = logEntry.req;

  log = new Log();

  // Sorts out log.reqInfo
  if ( logEntry.req){
    log.reqInfo = JSON.stringify({
      info   : req.info,
      headers: req.headers,
      method : req.method,
      body   :req.body,
      route  :req.route,
      params: req.params    
    });
  } else {
    logEntry.reqInfo = {};
  }

  // Sorts out all of the other fields with sane defaults.
  // FIXME: improve this code, it's grown into something ugly and repetitive
  log.workspaceId = logEntry.workspaceId ? logEntryworkspaceId. : '';
  log.workspaceName = logEntry.workspaceName ? logEntry.workspaceName : '';
  log.loginSession = logEntry.loginSession ? logEntry.loginSession : '';
  log.loginToken = logEntry.loginToken ? logEntry.loginToken : '';
  log.logLevel = logEntry.logLevel ? logEntry.logLevel : 0;
  log.errorName = logEntry.errorName ? logEntry.errorName : '';
  log.message = logEntry.message ? logEntry.message : '';
  log.data = logEntry.data ? logEntry.data : {};

  // Sorts out log.loggedOn
  log.loggedOn = new Date();
  log.save();
} 

这绝对是糟糕的代码.什么是更好的写作方式,没有重复？

Answer 1

我不明白你的代码.那么,如果未设置值,您希望将其设置为空字符串''吗？

如果您需要默认值,最简单的方法是在架构中定义它们.

var Log = new Schema({
  workspaceId    : { type: String, index: true, default: 'your default here' },
  //...
  loggedOn       : { type: Date, index: true, default: Date.now }
});

来自docs