!@user.nil?
end
+ ##
+ # ensure that there is a "this_user" instance variable
+ def lookup_this_user
+ unless @this_user = User.active.find_by_display_name(params[:display_name])
+ render_unknown_user params[:display_name]
+ end
+ end
+
##
# render a "no such user" page
def render_unknown_user(name)