gcg-website/layouts/partials/pagination.html

{{ $paginator := .Paginator }}
{{ $adjacent_links := 2 }}
{{ $max_links := (add (mul $adjacent_links 2) 1) }}
{{ $lower_limit := (add $adjacent_links 1) }}
{{ $upper_limit := (sub $paginator.TotalPages $adjacent_links) }}
{{ if gt $paginator.TotalPages 1 }}

<nav>
  <ul class="pagination">
    {{ if ne $paginator.PageNumber 1 }}
    <li class="page-item">
      <a class="page-link" href="{{ $paginator.First.URL }}">
        {{ partial "mdi" "step-backward-2" }}
      </a>
    </li>
    {{ end }}
    {{ if $paginator.HasPrev }}
    <li class="page-item">
      <a href="{{ $paginator.Prev.URL }}" class="page-link">
        {{ partial "mdi" "step-backward" }}
      </a>
    </li>
    {{ end }}
    {{ range $paginator.Pagers }}
      {{ $.Scratch.Set "page_number_flag" false }}
      {{ if gt $paginator.TotalPages $max_links }}
        {{ if le $paginator.PageNumber $lower_limit }}
          {{ if le .PageNumber $max_links }}
            {{ $.Scratch.Set "page_number_flag" true }}
          {{ end }}
        {{ else if ge $paginator.PageNumber $upper_limit }}
          {{ if gt .PageNumber (sub $paginator.TotalPages $max_links) }}
            {{ $.Scratch.Set "page_number_flag" true }}
          {{ end }}
        {{ else }}
          {{ if and ( ge .PageNumber (sub $paginator.PageNumber $adjacent_links) ) ( le .PageNumber (add $paginator.PageNumber $adjacent_links) ) }}
            {{ $.Scratch.Set "page_number_flag" true }}
          {{ end }}
        {{ end }}
      {{ else }}
        {{ $.Scratch.Set "page_number_flag" true }}
      {{ end }}
      {{ if eq ($.Scratch.Get "page_number_flag") true }}
        <li class="page-item {{ if eq . $paginator }}active{{ end }}">
          <a href="{{ .URL }}" class="page-link">
            {{ .PageNumber }}
          </a>
        </li>
      {{ end }}
    {{ end }}
    {{ if $paginator.HasNext }}
    <li class="page-item">
      <a href="{{ $paginator.Next.URL }}" class="page-link">
        {{ partial "mdi" "step-forward" }}
      </a>
    </li>
    {{ end }}
    {{ if ne $paginator.PageNumber $paginator.TotalPages }}
    <li class="page-item">
      <a class="page-link" href="{{ $paginator.Last.URL }}">
        {{ partial "mdi" "step-forward-2" }}
      </a>
    </li>
    {{ end }}
  </ul>
</nav>
{{ end }}