app/templates/bands.hbs
<div class="col-md-4">
<div class="list-group">
<div class="list-group-item">
{{input type="text" class="new-band" placeholder="New band" value=newName insert-newline="createBand" }}
<button class="btn btn-primary btn-sm new-band-button" {{action "createBand"}}
disabled={{disabled}}>Add</button>
</div>
{{#each model as |band|}}
{{#link-to "bands.band.songs" band class="list-group-item band-link"}}
{{band.name}}
<span class="pointer glyphicon glyphicon-chevron-right"></span>
{{/link-to}}
{{/each}}
</div>
</div>
<div class="col-md-8">
<div class="list-group">
{{outlet}}
</div>
</div>