show comments like facebook with express - express

Question

I have the next Schema:
var eventSchema = mongoose.Schema({
title: 'string',
propietary_id: 'String',
comments : [{
text: 'string',
user: { type : mongoose.Schema.Types.ObjectId, ref : 'users' },
createdAt: {type: Date, default: Date.now }
}]
});
my query:
Event.find().populate('comments.user').exec(function(err, doc){
console.log(err);
console.log(doc);
});
it's possible return object with events information, 2 comments and total number of comments (like facebook) ?

Answer 1

I would do it like this:
var NBR_OF_COMMENTS = 2;
Event.find().populate('comments.user').exec(function(err, event){
var comments = event.comments;
var totalNbrOfComments = comments.length;
comments.splice(NBR_OF_COMMENTS, totalNbrOfComments - NBR_OF_COMMENTS);
event.comments = {
count: comments.length,
total: totalNbrOfComments,
items: comments,
};
res.json(event);
});
For example, this should return the following:
{
title: 'test',
property_id: '123',
comments: {
count: 2,
total: 5,
items: [
{
text: 'comment 1',
...
},
{
text: 'comment 2',
...
},
],
}
}