I think I'm seeing a bug while using advanced search with relatedTo(). If I use a simple search, like this:

{% set param = {
   order: 'RAND()',
   limit: null,
   search: "#{request.tags}"
} %}

It finds a tag like low confidence without any issue. However, using the code I have below throws no errors, but returns no results:

{% set request = craft.request.getQuery() %}

{% set param = {
  order: 'RAND()',
  limit: null,
} %}

{% set param = craft.config.devMode or craft.config.staging
             ? param|merge({ group: 'testing' })
             : param|merge({ group: 'verified' }) %}

{% set relatedToParam = ['and'] %}

{% if request.tags %}
  {% set tagId = craft.tags.group('specialism').slug(request.tags).ids() %}
  {% set relatedToParam = relatedToParam|merge([{
    targetElement: tagId,
    field: 'tagsSpecialism',
  }]) %}
{% endif %}

{% if relatedToParam|length > 1 %}
    {% set param = param|merge({ relatedTo: relatedToParam }) %}
{% endif %}

{% set users = craft.users(param) %}

I'm fairly confident it's not an issue with my code, as every other search combination is working.


This is expected behaviour and requires proper hyphenated slug-path to work properly with .slug() in my code sample. See answer below!

1 Answer 1


In your working example, you’re mapping request.tags to the search param, but in the non-working example, you’re mapping it to the slug param.

Those two params are handled in very different ways. search will do some normalization routines on the value, and perform a very loose search for those keywords (see https://craftcms.com/docs/searching for more details). But the slug param will actually look for an exact match.

So if request.tags is set to "low confidence" and you pass that value into a slug param, I have complete confidence that it will return zero results, since "low confidence" isn’t actually a valid slug (see what I did there?).

You would have slightly better luck passing request.tags through the kebab filter, which will make the value look a little more like a valid slug. But the search param is probably a better bet unless you know for sure that request.tags is actually going to be a slug.

  • Ah that makes sense, I could add the kebab filter to the {{ option.value }} ... I guess there's a chance users could add odd characters as tags, but they'll be managed anyway. Performance wise, is relatedTo quicker than search? It's more specific using relatedTo but there are a few and conditions. Thanks Brandon!
    – Rob
    Feb 26, 2016 at 16:50
  • It seems search might be slower according to Brad's comment here
    – Rob
    Feb 26, 2016 at 17:00
  • @Rob Yeah search will be a bit slower due to the added complexity. If you can be sure you've got the right slug value to begin with, the relatedTo+slug route is better. Feb 26, 2016 at 17:04
  • Cool, I'll do that. There's no tag.slug on the docs, I've changed to <option value="{{ tag.title|kebab }}"> but is tag.slug an available option? It seems to work too.
    – Rob
    Feb 26, 2016 at 17:13
  • 2
    @Rob Yes, tags have slugs. Will update the docs. Feb 26, 2016 at 17:15

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