-<%= render :partial => "blocks", :locals => { :show_revoke_link => (current_user and current_user.moderator?), :show_user_name => false, :show_creator_name => true } %>
+<%= render :partial => "blocks", :locals => { :show_revoke_link => can?(:revoke, UserBlock), :show_user_name => false, :show_creator_name => true } %>