Show all tags related to a category?

Question

Is it possible to show all tags that are related to a category? I can't find anything on it.

Thanks.

Edit:

What I am looking for is this:

I know a category slug or name. I want to get all tags associated with entries in that category.

I can't seem to get this to work using the relatedTo param.

Answer 1

You can use the relatedTo param on craft.tags like you can with any Element inside Craft.

All Elements inside Craft can be related to one another. There is a .relatedTo parameter available on all of the query elements like craft.entries and craft.tags.

You will need to pass a category object into this relatedTo parameter. I have included the group param below but this can be omitted if you want to query all of your tags.

{% set tags = craft.tags.group( 'groupName' ).relatedTo( category ) %}

More info on using Relations in Craft: https://craftcms.com/docs/relations

---

UPDATE

The relatedTo param takes one of the following:

• An AssetFileModel, CategoryModel, EntryModel, UserModel, or TagModel object
• An element’s ID
• An array of element objects and/or IDs

To get a CategoryModel using a slug inside your template you can use:

{% set category = craft.categories.slug( 'theslug' ).first() %}

This will set category to a CategoryModel which you can then use inside the .relatedTo param in the above example.

---

UPDATE 2

If you've set category to have their own URL's then category inside the template you've set to use is a CategoryModel.

You then set entries to all entries related to the category. Finally, use these entries to get all related tags.

{% set entries = craft.entries.relatedTo( category ).find() %}
{% set tags = craft.tags.relatedTo( entries ).find() %}