在Drupal 8中按节点获取分类术语ID

Question

I'm trying to get Taxonomy data by particular node.

How can I get Taxonomy Term Id by using Node object ?

Drupal ver. 8.3.6

Answer 1

If you want to get Taxonomy Term data you can use this code:

$node->get('field_yourfield')->referencedEntities();

Hope it will be useful for you.

PS: If you need just Term's id you can use this:

$node->get('field_yourfield')->getValue();

You will get something like this:

[0 => ['target_id' => 23], 1 => ['target_id'] => 25]

In example my field has 2 referenced taxonomy terms. Thanks!

Answer 2

You could do something like that:

$termId = $node->get('field_yourfield')->target_id;

Then you can load the term with

Term::load($termId);

Hope this helps.

Answer 3

@Kevin Wenger's comment helped me. I'm totally basing this answer on his comment.

In your code, when you have access to a fully loaded \\Drupal\\node\\Entity\\Node you can access all the (deeply) nested properties.

In this example, I've got a node which has a taxonomy term field "field_site". The "field_site" term itself has a plain text field "field_site_url_base". In order to get the value of the "field_site_url_base", I can use the following:

$site_base_url = $node->get('field_site')->entity->field_site_url_base->value;