{% if analytics_tracking_id is defined and analytics_tracking_id is not empty %}
<script>
(function (i, s, o, g, r, a, m) {
i['GoogleAnalyticsObject'] = r
i[r] = i[r] || function () {
(i[r].q = i[r].q || []).push(arguments)
}, i[r].l = 1 * new Date()
a = s.createElement(o),
m = s.getElementsByTagName(o)[0]
a.async = 1
a.src = g
m.parentNode.insertBefore(a, m)
})(window, document, 'script', 'https://www.google-analytics.com/analytics.js', 'ga')
ga('create', '{{ analytics_tracking_id }}', 'auto')
{% if app.user %}
ga('set', 'userId', {{ app.user.id }})
{% endif %}
ga('send', 'pageview')
</script>
{% endif %}