How do i get sites by group handle/name?

Question

How can I get sites by their group handle/name within twig templates? Documentation only mentions querying sites by group id - getSitesByGroupId.

Answer 1

If you already have a reference to a Site model (i.e. the global currentSite Twig variable), you can get other sites in that group, like this:

{% set currentSiteGroup = currentSite.group %}
{% set sitesInGroup = currentSiteGroup.sites %}

{# Bonus — Remove the current site from that list: #}
{% set otherSitesInGroup = sitesInGroup|without(currentSite) %}

Answer 2

I would rather suggest you to do that in PHP but the Twig way would be the following

{% set allSites = craft.app.getSites().getAllSites() %}
{% set sitesWithGroup = [] %}
{% for site in allSites %}
    {% if site.getGroup().name == 'my group name' %}
        {% set sitesWithGroup = sitesWithGroup|merge([site]) %}
    {% endif %}
{% endfor %}

Answer 3

I find Twig/Craft filters to be the most concise and readable for things like this.

{% set allSites = craft.app.sites.getAllSites() %}
{% set filteredSites = allSites|filter(s => s.group == 'My Group Name') %}

More useful filters here