Drupal 7 Adding body class or ID based on Taxonomy term

Hi, thanks for the code. I ran in the same "unidentified property" notice. My solution was to replace

$terms[$node->vid][$key][$term->$key] = $term;

withe this:

$terms[$node->vid][$key][$term-><strong>tid</strong>] = $term;

I am not sure, if it is the right coding way, but my body has the class listed and the notice is gone away. So it is a solution for me at the moment

Hi,
you're using the taxonomy_node_get_term() function in a wrong way. The second parameter isn't meant to be an ID of a particular term - it is the name of a property used as array key. So theoretically you could use any property name of the taxonomy_term_data database table. The only one that makes sense is 'tid', which is the default value anyway. So your call should be:
$results = taxonomy_node_get_terms($node);

So gurkcity's solution is just hardcoding the 'tid', which is unnecessary, when the function is used correctly. So I'm wondering why other people still have errors with that solution. For me it works :-)

As this function prints all used taxonomy terms of any vocabulary used by the node, you would have to add an extra query condition, if you only want to print terms of a particular vocabulary id

Hey Irwin - I don't have time to test it all out, but at a quick glance, I'd say getting results for a specific vocabulary would be as easy as changing the references to node->vid to the vocabulary ID of the vocabulary you want to test for.

So if your Vocabulary is 'Album' as per your other post, has the ID of 4:
$myvid = 4;

and then change all of the:
$node->vid
to
$myvid

Let me know if that works for you. ;)

This is the best solution for designers like me who are not so good with coding. Worked for me after 15 min. Drupal 7 Adaptive theme
Thanks Yuri!

All responses to this case were just a lot of clutter to complicate your life. But your suggestion is wonderful. Thank you very much.

Much-belated (like, more than a year later) thanks, Yuri, for the tip to the very useful Context Module! Does "all this and more!"

Thanks also expressed in a longer revised post on another thread.

Thanks for posting this. Its a far easier technique. Looks like I can use the Context module for a lot of other useful stuff too. ;)

This is how I accomplished it in D7 - less abstracted but if you just want simple terms.

Replace MY_THEME, NAME_OF_YOUR_FIELD and MY_NODE_TYPE with yours and remember to flush the cache as you are adding a new preprocess function in template.php.

function MY_THEME_preprocess_html(&$vars, $hook) {
  // Add the terms to the body classes for MY_NODE_TYPE'.
  if ($node = menu_get_object()) {
    if ($node->type == 'MY_NODE_TYPE') {
      
      // Return an array of taxonomy term ID's.
      $termids = field_get_items('node', $node, 'NAME_OF_YOUR_FIELD');
      
      // Load all the terms to get the name and vocab.
      foreach ($termids as $termid) {
        $terms[] = taxonomy_term_load($termid['tid']);
      }

      // Assign the taxonomy values.
      foreach ($terms as $term) {
        $class = strtolower(drupal_clean_css_identifier($term->name));
        $vocabulary = drupal_clean_css_identifier($term->vocabulary_machine_name);
        $vars['classes_array'][] = 'taxonomy-' . $vocabulary . '-' . $class;
      }
    }
  }
}

OK that was easy enough. I used theme_preprocess_node {} instead of theme_preprocess_html

BUT I also have a view of nodes on one page. How do I pass the taxonomy class into each of these nodes using this method?

You don't include the parent theme name for the hook, you only use your theme name. So you want:

function animares_preprocess_html(&$variables) {

Note that you should also change your code to be a little cleaner by doing this:

function animares_preprocess_html(&$variables) {
  $node = menu_get_object();
  if($node)
  {
    $results = taxonomy_node_get_terms($node);
    if($results) {
      foreach ($results as $item) {
        $variables['classes_array'][] = "taxonomy-".strtolower(drupal_clean_css_identifier($item->name));
      }
    }
  }
}

If you have the term id, there's a function called taxonomy_get_parents() see: https://api.drupal.org/api/drupal/modules!taxonomy!taxonomy.module/funct...

This works great too! It's true it is easy with Context but i don't really like to install a module just to add this function. Plus this is easier!