{{- $page_link := .Permalink -}}
{{- $categories := .Params.categories -}}
{{- $c := 0 -}}

{{- $sectionPages := where .Site.RegularPages "Section" .Section -}}
{{- $relatedCategoryExcludeSection := .Params.relatedByCategoryExcludeSection -}}

<div class="px1 px2l grid flex flex-grid flex-wrap flex-gutter-3">
 {{- range $page := .Site.RegularPages -}}

 {{- $has_common_categories := intersect $categories .Params.categories | len | lt 0 -}}
 {{- if and $has_common_categories (ne $page_link $page.Permalink) (lt ($.Scratch.Get "$c") 500)}}
 {{- $.Scratch.Add "$c" 1 -}}

 {{- if eq $relatedCategoryExcludeSection "true" -}}
 {{- if not (in $sectionPages $page) -}}
 {{- partial "sub" . -}}
 {{- end -}}
 {{- else -}}
 {{- partial "sub" . -}}
 {{- end -}}

{{- end -}}
{{- end -}}
</div>