Accessing inner `model` in outer template

@fguillen wrote:

I have a model Post which has a method that returns the nextPost.

I want to build a navigation bar that allows me to go to the next post.

This can work like this:

<!-- templates/post.hbs -->
{{#link-to 'posts' model.nextPost}}
  {{model.nextPost.title}}
{{/link-to}}

The problem is that I want to render this control on the outer level, this is in the application.hbs template but in there I have not access to the model/post that is actually rendered.

Check diagram:

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accessing_inner_model_in_outer_template.jpg777x537 22.7 KB

How can I deal with this situation?

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