Checks if a user has a specific role. Uses the match
utility, so anything passed in for the role will be passed to the match function. The needle
is a flat list of all user roles, and the haystack is what you pass into the component. Thus,
you are able to pass an and/or array into the this for more complicated role checks. Note, that the
has-role helper uses positional parameters to make an array, thus, your answer will always be wrapped
in one array, so use this when formatting your checks.
Usage:
<!-- if the match function returns true this will return true -->
{{has-role 'admin'}} <!-- Checks for 'admin' role -->
{{has-role 'admin' 'stats'}} <!-- Checks for 'admin' OR 'stats' role -->
{{has-role (array 'admin' 'stats')}} <!-- Checks for 'admin' AND 'stats' role -->
{{has-role 'admin' (array 'supervisor' 'stats')}} <!-- Checks for 'admin' OR ('supervisor' AND 'stats')-->