mongoosejs update

Mongoose JS Model update API详解

最新推荐文章于 2020-12-01 17:30:24 发布

原创最新推荐文章于 2020-12-01 17:30:24 发布 · 154 阅读

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本文深入解析了Mongoose JS中Model.update方法的使用，包括参数解释、有效选项及源码注释。

http://mongoosejs.com/docs/api.html#model_Model.update

Model.update = function update (conditions, doc, options, callback) {
  var mq = new Query({}, {}, this, this.collection);
  return mq.update(conditions, doc, options, callback);
};

Parameters:

conditions <Object>
update <Object>
[options] <Object>
[callback] <Function>

Valid options:

safe (boolean) safe mode (defaults to value set in schema (true))
upsert (boolean) whether to create the doc if it doesn't match (false)
multi (boolean) whether multiple documents should be updated (false)
strict (boolean) overrides the strict option for this update
overwrite (boolean) disables update-only mode, allowing you to overwrite the doc (false)