{{ $sessions_without_day := where (where (where .pages (trim ".Params.when_day" " ") "eq" nil) ".Params.title" "ne" nil) ".Params.hidden" "ne" "true" }}
{{ $sessions_without_time := where (where (where .pages (trim ".Params.when_time" " ") "eq" nil) ".Params.title" "ne" nil) ".Params.hidden" "ne" "true" }}
{{ $sessions := union $sessions_without_day $sessions_without_time }}

{{ if gt (len ($sessions)) 0 }}
<h5>Sessions not mapped to any day or time </h5>
<ul>
    {{ range $sessions }}
    <li> {{ partial "link.html" . }}
    {{ end }}
</ul>
{{ end }}