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1. ragulka
   Member
   Posted 1 year ago #

   WHen I have created a new taxonomy, then WordPress internal fuction is_taxonomy() does not recognize my taxonomy. This leads to a number of problems - for example, I cannot use wp_insert_term on wp_update_term on wp_set_post_terms

2. Michael Fields
   Theme Wrangler
   Posted 1 year ago #

   I can verify that is_taxonomy() does in fact work on custom taxonomies. The issue that you are most likely experiencing is that you are calling the function too early. The following two examples should illustrate:

   add_action( 'init', 'is_there_a_doggie_treat_taxonomy', 0 );
   add_action( 'init', 'create_doggie_treat_taxonomy', 50 );
   add_action( 'init', 'is_there_a_doggie_treat_taxonomy', 100 );
   
   function is_there_a_doggie_treat_taxonomy() {
   	print ( is_taxonomy( 'doggie-treat' ) ) ? '<p>We Have Treats!</p>' : '<p>No Treats for you!</p>';
   }
   function create_doggie_treat_taxonomy() {
   	register_taxonomy( "doggie-treat", 'post', array(
   		'hierarchical' => true,
   		'label' => 'Doggie Treats',
   		'singular' => 'Doggie Treat',
   		'update_count_callback' => $tax['update_count_callback'],
   		) );
   }

   So, we've hooked into init 3 times. First we have checked to see if our taxonomy exists at 0. Unfortunately , it does not yet exist. At 50, we create the taxonomy and when we check for it again at 100, it is there.

   I would try hooking the function a little later.

   Best,
   -Mike

3. jaredwilli
   Member
   Posted 1 year ago #

   is_taxonomy() was deprecated, and completely removed, same goes for is_post_type()

   Now use these instead

   taxonomy_exists()
   post_type_exists()

   Here's the trac ticket:
   http://core.trac.wordpress.org/ticket/13747

4. Miriam de Paula
   Member
   Posted 1 year ago #

   Please, somebody help me?

   I'm having the same problem, using WP 3.0.1 ...
   I have created a custom taxonomy, named "catalogo", but when I try use print_r( get_categories('taxonomy=catalogo') ) or wp_list_categories('taxonomy=catalogo') ... or when I simply try to check if taxonomy exists, I get an error "Invalid Taxonomy" ...
   taxonomy_exists('catalogo') is returning false for me... Please.. What I did wrong?

   Thanks in advance.
   Miriam de Paula
   drika.santos.sp@gmail.com

5. Miriam de Paula
   Member
   Posted 1 year ago #

   Sorry...
   This post has been moved to a new topic where I can explain better:
   http://wordpress.org/support/topic/wordpress-doesnt-recognize-my-custom-taxonomy?replies=1#post-1630572

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