This answer was a joint effort with tnorthcutt so I made it community wiki. There are several interesting functions available: the_taxonomies(), which calls get_the_taxonomies(), which in turn calls get_object_taxonomies() and wp_get_object_terms(). the_taxonomies() is a documented template tag and is a light wrapper around a call to get_the_taxonomies(), which is undocumented. get_object_taxonomies() returns a list of … Read more
If you want to check for the existence of a taxonomy, use taxonomy_exists( $taxonomy ): <?php if(taxonomy_exists(‘country’)){ echo ‘All courses in’ . get_the_term_list($post->ID,’country’, ‘ ‘, ‘ ‘, ” ); } ?> etc… Edit If, instead of checking for the existence of a taxonomy, you want to check if the current post belongs to a taxonomy, … Read more
There are some restrictions (caused by lengths of some columns in database). Taxonomies Taxonomy name – 32 characters Term name (and term slug) – 200 characters Posts Post type name – 20 characters Post name (slug) – 200 characters Meta key – 255 characters Options Option name – 64 characters Comments Commenter email – 100 … Read more
I’d suggest the Taxonomy Images Plugin. It says it’s in Beta but I’ve used it on a few sites already and it works great.
I solved this issue by making sure that the calls to register my taxonomies were placed before the calls to registering my custom post types. Weird but it works!
Here is what I came up with, seems to work: add_filter( ‘pre_post_tags_input’, ‘no_tags_input_create’ ); add_filter( ‘pre_post_tax_input’, ‘no_tax_input_create’ ); function no_tags_input_create($tags_input) { $output = array(); foreach( $tags_input as $tag ) if( term_exists( $tag, ‘post_tag’) ) $output[] = $tag; return $output; } function no_tax_input_create($tax_input) { if( !isset($tax_input[‘post_tag’]) ) return $tax_input; $output = array(); $tags = explode(‘,’, $tax_input[‘post_tag’]); … Read more
I believe WordPress can handle multiple query parameter by default. You can load http://wordpresssite.com/?taxonomy-1=term-a&?taxonomy-2=term-b to query all post that belongs to term a (in taxonomy 1) AND term b (in taxonomy 2). Use JQuery load() function to load the intended query parameter, based on the selected item on the sidebar. Hope this help.
How to display term description in empty terms archive?
Thanks for your help everybody. I was using a custom post type and forgot to include ‘post_type’=>’my_custom_post_type’ I finally got to the problem by doing a var_dump on the WP_Query object and looking at the SQL. Running the query directly on the database and picking through it, I eventually found my error.
Taxonomy page lead to 404 page on pagination