Taxonomies Archives - Page 2 of 2

I find myself creating taxonomies for a lot of my custom port types. I went ahead and setup a helper function to make it easier for me to create these taxonomies. A lot more could be done with this, but I find it covers 90% of what I need.

/**
 * Create a taxonomy for a CPT
 * @param string taxonomy slug
 * @param string CPT slug
 * @param string Taxonomy Menu / Page Title
 * @param array  Overwrite the rewrite
 */
function jb_register_taxonomy($tax_name = '', $post_type = '', $menu_title = '', $rewrite = array()){
        
        if(empty($rewrite)){
		$rewrite = array( 'slug' => $tax_name );
	}

	register_taxonomy(
		$tax_name,
		$post_type,
		array(
			'label' => __( $menu_title ),
			'rewrite' => $rewrite, 
			'capabilities' => array(
				'assign_terms' => 'edit_posts',
				'edit_terms' => 'edit_posts'
			),
			'hierarchical' => true
		)
	);
}

//usage
jb_register_taxonomy('taxonomy-slug', 'post-type', 'Taxonomy Title');

/**

* Create a taxonomy for a CPT

* @param string taxonomy slug

* @param string CPT slug

* @param string Taxonomy Menu / Page Title

* @param array Overwrite the rewrite

function jb_register_taxonomy($tax_name = '', $post_type = '', $menu_title = '', $rewrite = array()){

if(empty($rewrite)){

$rewrite = array( 'slug' => $tax_name );

}

register_taxonomy(

$tax_name,

$post_type,

array(

'label' => __( $menu_title ),

'rewrite' => $rewrite,

'capabilities' => array(

'assign_terms' => 'edit_posts',

'edit_terms' => 'edit_posts'

'hierarchical' => true

)

);

}

//usage

jb_register_taxonomy('taxonomy-slug', 'post-type', 'Taxonomy Title');

Recently we had a client who wanted the ability to add new taxonomy terms from the front end of their site. This turned out to be pretty easy using the following code.

//here we take the term name from the client and use the wp_insert_terms() function to add this term to our 'taxonomy'
$new_term = wp_insert_term(
			$_POST['new_term'], // the term 
			'taxonomy', // the taxonomy
			array(
			 	'slug' => sanitize_title_with_dashes($_POST['new_term'], '', 'save') //this function will clean and save our term name as a url safe slug
			)
	    );

//this part is not needed to create the term, but in our use case this new term is also being applied to a post
$tag = array( $new_term['term_id'] );
wp_set_post_terms( $post_id, $tag, 'taxonomy' );

//here we take the term name from the client and use the wp_insert_terms() function to add this term to our 'taxonomy'

$new_term = wp_insert_term(

$_POST['new_term'], // the term

'taxonomy', // the taxonomy

array(

'slug' => sanitize_title_with_dashes($_POST['new_term'], '', 'save') //this function will clean and save our term name as a url safe slug

)

);

//this part is not needed to create the term, but in our use case this new term is also being applied to a post

$tag = array( $new_term['term_id'] );

wp_set_post_terms( $post_id, $tag, 'taxonomy' );

Obviously this is just the bare minimum required. You are on your own for validation and such.

Category: Taxonomies

CPT Taxonomy Function

Add Taxonomy Term Programmatically