Assign Custom Taxonomy Terms
### Step 1: Register Your Custom Taxonomy
Ensure that your custom taxonomy is registered correctly. Here's an example:
function register_custom_taxonomy() {
register_taxonomy(
'custom_taxonomy',
'custom_post_type',
array(
'label' => __('Custom Taxonomy'),
'rewrite' => array('slug' => 'custom-taxonomy'),
'hierarchical' => true,
)
);
}
add_action('init', 'register_custom_taxonomy');### Step 2: Create a Custom Post and Assign Taxonomy Terms
When creating a custom post, use the `wp_insert_post()` function to add the post, and then use `wp_set_post_terms()` to assign custom taxonomy terms using their IDs.
Here’s a complete example:
function create_custom_post_with_taxonomy() {
// Step 2.1: Create a new custom post
$post_data = array(
'post_title' => 'My Custom Post',
'post_content' => 'This is the content of the custom post.',
'post_status' => 'publish',
'post_type' => 'custom_post_type',
);
// Insert the post into the database
$post_id = wp_insert_post($post_data);
// Step 2.2: Assign taxonomy terms (using IDs)
if (!is_wp_error($post_id)) {
// Replace the array values with your custom taxonomy term IDs
$taxonomy_ids = array(12, 34); // Example taxonomy term IDs
// Assign terms to the post
wp_set_post_terms($post_id, $taxonomy_ids, 'custom_taxonomy');
}
return $post_id;
}
add_action('init', 'create_custom_post_with_taxonomy');### Explanation
1. **Register Custom Taxonomy**: Ensure your custom taxonomy (`custom_taxonomy`) is registered.
2. **Create Custom Post**:
– Use `wp_insert_post()` to create a new post of type `custom_post_type`.
3. **Assign Taxonomy Terms**:
– Use `wp_set_post_terms($post_id, $taxonomy_ids, 'custom_taxonomy')` to assign taxonomy terms by their IDs.
### Step 3: Verifying Taxonomy Assignment
You can verify if the terms are assigned correctly by editing the post in the WordPress admin panel or by retrieving the terms programmatically:
$assigned_terms = get_the_terms($post_id, 'custom_taxonomy');
if ($assigned_terms && !is_wp_error($assigned_terms)) {
foreach ($assigned_terms as $term) {
echo $term->name . '<br>';
}
}This approach ensures that your custom taxonomy terms are correctly assigned to your custom post type. Adjust the taxonomy names and IDs based on your specific setup.