$def with (publisher, fid='', following=False)

$ subscriber = ctx.user and ctx.user.key


<div>
  $if ctx.user:
    <form class="follow-form" id="follow_$fid" method="POST" action="$(subscriber)/follows.json"
          property="follow" typeof="Follows" vocab="http://schema.org/">
      <input type="hidden" value="$following" name="state"/>
      <input type="hidden" value="$publisher" name="publisher"/>
      <input type="hidden" value="$request.fullpath" name="redir_url"/>
      $ css_treatment = 'delete' if following else 'primary'
      <button type="submit" class="cta-btn cta-btn--$(css_treatment)">$_("Unfollow" if following else "Follow")</button>
    </form>
  $else:
    <a class="cta-btn cta-btn--primary" href="/account/login?redir_url=$(ctx.path)">$_("Follow")</a>
</div>