In Ember how do I access an attribute from a different model from the current handlebar in the html file?

I'm trying to do something like:

{{#if model.user.isAdmin}}
<div>
 My name is {{model.user.name}}
</div>
{{/if}}

inside a handlebar from a controller not related to users:

<script type="text/x-handlebars" data-template-name="events/new">

How would I go about this? How can I use/show the values from another model?