Craft CMS - Twig macro for finding position of entry in Structure section.

structureHelper.twig

{# Get the position of an entry in a Structure section. #}
{% macro getEntryPosition(entry, level) %}
{% spaceless %}
  {% if entry is defined and entry|length and entry.section is defined and entry.section.type == 'structure' %}
    {% set siblingIds = craft.entries.section(entry.section.handle).level(level|default(2)).ids() %}
    {% set position = null %}
    {% for siblingId in siblingIds %}
      {% if position is null %}
        {% set position = siblingId == entry.id ? loop.index : null %}
      {% endif %}
    {% endfor %}
    {# Begin macro output #}
    {# ------------------ #}
    {# Return just the position #}
    {{ position }}
    {# ------------------ #}
    {# End macro output #}
  {% endif %}
{% endspaceless %}
{% endmacro %}

{# Get the position of an entry in a Structure section based on it's parent entry. #}
{% macro getEntryPositionFromParent(entry) %}
{% spaceless %}
  {% if entry is defined and entry|length and entry.section is defined and entry.section.type == 'structure' %}
    {% set siblingIds = entry.parent.children.ids %}
    {% set position = null %}
    {% for siblingId in siblingIds %}
      {% if position is null %}
        {% set position = siblingId == entry.id ? loop.index : null %}
      {% endif %}
    {% endfor %}
    {# Begin macro output #}
    {# ------------------ #}
    {# Return just the position #}
    {{ position }}
    {# ------------------ #}
    {# End macro output #}
  {% endif %}
{% endspaceless %}
{% endmacro %}