Why my collection.find() does not work in meteor but work in robomongo?

问题:

I have a publication that should return me all users matching an _id array. here it the query:

Meteor.users.find({             '_id': { $in: myArray}},{                 'profile.name':1,                 'profile.description':1,                 'profile.picture':1,                 'profile.website':1,                 'profile.country':1}             ); 

When I run it in Robomongo (the mongo browser), it works. But my publication only returns undefined. when I console.log(myArray); in the publication, I get something like this ['FZ78Pr82JPz66Gc3p']. This is what I paste in my working Robomongo query.

Alternative question: how can I have a better feedback(log) from the Collection.find() result?

回答1:

It looks like you are trying to specify fields in your find, which you can do like this:

var options = {   fields: {     'profile.name': 1,     'profile.description': 1,     'profile.picture': 1,     'profile.website': 1,     'profile.country': 1   } };  Meteor.users.find({_id: {$in: myArray}}, options); 

However, if this is being used in a publish function, I strongly recommend using only top-level fields like so:

Meteor.users.find({_id: {$in: myArray}}, {fields: {profile: 1}}); 

For more details on why, please see this question.

---

For your second question, you can view the documents returned by a cursor by calling fetch on it. For example:

console.log(Posts.find({_id: {$in: postIds}}).fetch()); 

文章来源: Why my collection.find() does not work in meteor but work in robomongo?