app/views/static/stats.html.erb
<div class="container">
<h1 class="text-center my-4">Statistics</h1>
<h2>Users</h2>
<p>Users created per day, last 30 days</p>
<%= line_chart User.group_by_day(:created_at, last: 30).count %>
<p>Users created per day (all time)</p>
<%= line_chart User.group_by_day(:created_at).count %>
<h2 class="mt-5">Labs</h2>
<p>Labs created per day</p>
<%= line_chart Lab.group_by_day(:created_at).count %>
<p>Labs by country</p>
<%= pie_chart Lab.group(:country_code).count %>
<h2 class="mt-4">Machines</h2>
<p>Created per day, last 30 days</p>
<%= line_chart Machine.group_by_day(:created_at, last: 30).count %>
<p>Created per day (all time)</p>
<%= line_chart Machine.group_by_day(:created_at).count %>
<h2>Jobs</h2>
<p>Jobs created per day</p>
<%= line_chart Job.group_by_day(:created_at).count %>
</div>