Get a specific attribute taxonomy terms slug

Question

I'm trying to get terms slug from a specific attribute taxonomy but I get nothing.

$attr_langs = 'pa_languages';
$attr_langs_meta = get_post_meta('id', 'attribute_'.$attr_langs, true);
$term = get_term_by('slug', $attr_langs_meta, $attr_langs);

Thank you so much in advance!

LoicTheAztec LoicTheAztec · Accepted Answer · 2017-11-08T11:51:49

It's normal that it doesn't work as get_post_meta() first function argument needs to be a numerical value but NOT a text string as 'id' (the post ID)…
So you can't get any value for $attr_langs_meta variable.

You can get the product ID in different ways:

1) From the WP_Post object with:
global $post; 
$product_id = $post->ID; 
2) From the WC_Product object with:
$product_id = $product->get_id(); 

Now the correct way for to do it is:

// The defined product attribute taxonomy
$taxonomy = 'pa_languages';

// Get an instance of the WC_Product Object (necessary if you don't have it)  
// from a dynamic $product_id (or defined $product_id)
$product = wc_get_product($product_id);

// Iterating through the product attributes
foreach($product->get_attributes( ) as $attribute){
    // Targeting the defined attribute
    if( $attribute->get_name() == $taxonomy){
        // Iterating through term IDs for this attribute (set for this product)
        foreach($attribute->get_options() as $term_id){
            // Get the term slug
            $term_slug = get_term( $term_id, $taxonomy )->slug;

            // Testing an output
            echo 'Term Slug: '. $term_slug .'<br>';
        }
    }
}

Or also exclusively for a variable product (similar thing):

// The defined product attribute taxonomy
$taxonomy = 'pa_languages';

// Get an instance of the WC_Product Object (necessary if you don't have it)  
// from a dynamic $product_id (or defined $product_id)
$product = wc_get_product($product_id);

// Iterating through the variable product variations attributes
foreach ( $product->get_variation_attributes() as $attribute => $terms ) {
    // Targeting the defined attribute
    if( $attribute == $taxonomy ){
        // Iterating through term slugs for this attribute (set for this product)
        foreach( $terms as $term_slug ){
            // Testing an output
            echo 'Term Slug: ' . $term_slug . '<br>';
        }
    }
}

This should work for you…

Get a specific attribute taxonomy terms slug

1 Answers