Problem encountered while trying to publish a post using Iron Router

I'm encountering some difficulties when trying to create a route that allows me to respond to comments (.../comments/:_id/reply) and publish the related post. Below is the code snippet:

Publications

Meteor.publish('commentUser', function(commentId) {
    var comment = Comments.findOne(commentId);
    return Meteor.users.find({_id: comment && comment.userId});
});

Meteor.publish('commentPost', function(commentId) {
    var comment = Comments.findOne(commentId);
    return Posts.find({_id: comment && comment.postId});
});

Meteor.publish('singleComment', function(commentId) {
    return Comments.find(commentId);
});

Route

this.route('comment_reply', {
    path: '/comments/:_id/reply',
    waitOn: function() {
        return [
            Meteor.subscribe('singleComment', this.params._id),
            Meteor.subscribe('commentUser', this.params._id),
            Meteor.subscribe('commentPost', this.params._id)
        ]
    },
    data: function() {
            return {
                comment: Comments.findOne(this.params._id)
            }
    }

 });

Comment Reply Template

<template name="comment_reply">
    <div class="small-12 columns">
         {{# with post}}
              {{> postItem}}
         {{/with}}
    </div>

    <div class="small-12 columns">
          {{#with comment}}
          {{> comment}}
      {{/with}}
     </div>

     {{> commentReplySubmit}}   

</template> 

Comment Reply Helper

Template.comment_reply.helpers({
     postItem: function() {
         return Posts.findOne(this.comment.postId);
     }
});

While the {{#with comment}} displays correctly, the {{#with post}} does not appear when I access the route. Additionally, if I try to render only {{> postItem}}, it displays the HTML without any data. The console outputs an alert stating: You called Route.prototype.resolve with a missing parameter. "_id" not found in params

Thank you for your assistance!

Answer №1

It seems like there may have been some confusion with the names of your template post and your template helper postItem.

      {{#with post}}
          {{> postItem}}
      {{/with}}

Perhaps it should actually be:

      {{#with postItem}}
          {{> post}}
      {{/with}} 

Could it be that you have both a template and a template helper named postItem?

Additionally, there is a space between # and with, which might not be allowed.

Another approach could be

Template.comment_reply.helpers({
     postItem: function() {
         return Posts.findOne(this.comment.postId);
     }
});

Instead, it might make more sense as:

Template.comment_reply.helpers({
     post: function() {
         return Posts.findOne(this.comment.postId);
     }
});

Answer №2

When attempting to break down the template into smaller templates, you may encounter issues if multiple data contexts are involved with different _Ids. This can result in errors like the one you're currently experiencing. To resolve this, consider structuring your templates like so:

<template name="comment_reply">
    <div class="small-12 columns">
         {{# with post}}
              {{> postItem}}
         {{/with}}
    </div>
</template>

<template name="postItem">
    <div class="small-12 columns">
      {{#with comment}}
          {{> comment}}
      {{/with}}
     </div>
</template> 

<template name="comment">
     {{> commentReplySubmit}}   
</template> 

You may need to adjust the syntax of the templates and routing to ensure everything works smoothly.

I hope this solution proves helpful!

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