无法从Mongoose文档搜索中修改对象 [英] Cant modify objects from Mongoose document search

问题描述

我试图拥有一个通用的REST，该REST返回给定架构的所有记录.

I am trying to have a generic REST that returns all records for a given schema.

  /* Read all entries for a given document type, TODO: limit this to a sensible amount of records, say 500 */  
  app.get( '/data/all/:id' , verifySession , function( req, res )
  {
    exposed[req.params.id].find( {} , function(err,docs)
    { 
      if( docs && req.params.id == "Account" )
        docs.forEach( function(o){ console.log(o); delete o.salt; delete o.hash; console.log(o); } );
        res.json( err || docs ); 
    });     
  });

对于帐户，我不想返回hash和salt，但是o的行为就像是只读的.第二个console.log(o)仍然具有salt和hash.

And for Accounts, I dont want to return the hash and salt, but o behaves as if it is read only. The second console.log(o) still has salt and hash.

帮助?

推荐答案

猫鼬返回不是普通对象的Document实例.

Mongoose returns Document instances, which aren't plain objects.

因此，您需要先使用 toObject 进行转换:

So you need to convert them first using toObject:

var documents = docs.map( function(doc) {
  doc = doc.toObject();
  delete o.salt;
  delete o.hash;
  return doc;
});

或者，您可以告诉find在结果中排​​除hash和salt字段:

Alternatively, you can tell find to exclude hash and salt fields in the results:

exposed[req.params.id].find({}, '-hash -salt', function(err, docs) { ... });

这篇关于无法从Mongoose文档搜索中修改对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！