Accessing nested objects in a Meteor application using Blaze and Spacebars - mongodb

Question

I am doing a Meteor project for educational purpose. It's a blog with a post list page and a post detail page where logged-in users can add comments. Disclaimer: In the project I cannot use aldeed-simple schema and I won't use pub/sub methods. I am using iron-router and the accounts-password package for user authentication.
Step 1
I' ve set a basic application layout and a basic routing:
Router.route('/posts', function () {
this.render('navbar', {
to:"navbar"
});
this.render('post_list', {
to:"main"
});
});
Router.route('/post/:_id', function () {
this.render('navbar', {
to:"navbar"
});
this.render('post_detail', {
to:"main",
data:function(){
return Posts.findOne({_id:this.params._id})
}
});
Step 2
I ve created a post detail view which include a comment form. Find the code below:
<template name="post_detail">
<div class="container">
<p>Title: {{title}}</p>
<h5>Description: </h5>
<p>{{description}}</p>
<h4>Comments</h4>
<ul>
{{#each comment in comments}}
<li>{{comment}}</li>
{{/each}}
</ul>
{{>comments}}
</div>
</template>
<!-- Comments -->
<template name="comments">
<form class="js-add-comment-form">
<input type="text" id="comment" class="form-control"/>
<button type="submit" class="btn btn-default js-add-comment">Add a comment</button>
</form>
Step 3
I've added an event helper to the comment template in order to add user comments. The form takes the comment and the user Id. See code below:
Template.comments.events({
'submit .js-add-comment-form': function(event) {
event.preventDefault();
var comment = event.target.comment.value;
console.log(comment);
var user = Meteor.userId();
var email = Meteor.user().emails[0].address;
console.log(email)
console.log(user);
if (Meteor.user()){
Posts.update(
{_id: this._id},
{$push: {comments: {comments:comment, user}}});
event.target.comment.value = "";
}
}
});
Find below a post detail view in the browser:
I've inserted some comments but I cannot display it on the page. Instead I get and Object object for each comment and user id. If I go to the console this is my object:
How can I access those objects and display those field values(comments and user) on the page? Any help ? Thanks Sandro.

Answer 1

This is happening because {{comment}} is an object itself. Here's some sample code to get the message property showing:
<template name="post_detail">
<div class="container">
<p>Title: {{title}}</p>
<h5>Description: </h5>
<p>{{description}}</p>
<h4>Comments</h4>
<ul>
{{#each comment in comments}}
<li>{{comment.comments}} | {{emailForUser comment.user}}</li>
{{/each}}
</ul>
{{>comments}}
</div>
</template>
If you want to get the user's email address as per my example above, you'll want to add a template helper:
Template.post_detail.helpers({
emailForUser( id ) {
var user = Meteor.users.findOne({_id: id});
if( user ) {
return user.emails[0].address;
}
}
});