[Gelöst] Using $query_args to filter for a taxonomy value

[Author]

Artikel

[alexG-4]

I've written a Views filter that lets me dynamically filter Views based on posts having a specific tag value in a taxonomy.

After a bit of investigation, I determined that I need to use this structure within $query_args

[tax_query] => Array
(
[0] => Array
(
[taxonomy] => .... slug of taxonomy ...
[field] => id
[terms] => Array
(
[0] => ... ID of taxonomy term ...
)
[operator] => IN
[include_children] => 1
)
[relation] => AND
)

... and I got it working OK.

My question is about the [field] argument. Is there an option to use slugs instead of IDs for the taxonomy terms?

I would much rather use slugs to make my code more meaningful. I tried using 'field' => 'slug' and using slugs, but that didn't work.

Any way to do that?

Thanks

Alex

[Christian Cox]

Try using the field 'name' instead of 'slug'. Here's a filter query that only shows featured products (defined by a term in the product_visibility taxonomy):

add_filter( 'wpv_filter_query', 'featured_products',99,3 );
function featured_products( $query_args,$views_settings, $view_id) {

  if ($view_id == 10){
    $query_args = array(
      'post_type'  => 'product',
      'tax_query' => array(
        array(
          'taxonomy'     => 'product_visibility',
          'field'   => 'name',
          'terms' => 'featured',
          'operator' => 'IN'
        ),
      ),
    );
  }
  return $query_args;
}

[alexG-4]

Doh!

I actually tried using 'name' as a guess, but it didn't work because of some other mistake I'd made: I just assumed my guess was wrong!

I tried to find documentation on this but couldn't find it: is there documentation available?

Alex

[Christian Cox]

Slug should work too, actually. The WP documentation for taxonomy parameters in a query is here: https://codex.wordpress.org/Class_Reference/WP_Query#Taxonomy_Parameters

[alexG-4]

Thanks, Christian.

Still learning about what's WP and what's Toolset!

Very helpful - thanks.

Alex