AngularJS - Conditionally apply an attribute?

Conditionally applying an element is easy - just use ng-show. But what about an attribute?

IE

<div ui-sortable>
  ...
</div>

needs to be sortable only for admins, so do something like...

<div ng-conditional-attribute=" {'ui-sortable': 'user.isAdmin()'} ">
  ...
</div>

Create a custom directive or template and switch between the version with sortable attached and the version without.

Since a lot of directives also work from class you might be able to use ng-class="{'ui-sortable': user.isAdmin()}".

I don't know enough about the angular-ui directives to know what restrictions they have

Late to the party but it may help someone:

ng-readonly =""

will set the attribute if the expression is truthy.

There are a number of other ng attributes that work this way.