Filter CPTs by a linked custom Taxonomy in the WP Admin Dashboard is possible with restrict_manage_posts.
In the screenshot there is a CPT list of posts, with a dropdown menu of a linked custom taxonomy terms which are filterable via the filter button next to it.
The code goes in functions.php
So change to your CPT – example uses ‘light’ and Custom Taxonomy – example uses ‘light_category’.
The action has a late priority of ’99’ so it ends up closer to the filter button in the dashboard.
6 comments
Brett Atkin
Works perfectly – took 2 minutes to implement. Thanks!!
Sumit Thakur
How can I remove defult categories like product cat from product list at side of admin panel. Please refer below image and Please send solution on my email ID
https://prnt.sc/wnza8h
Emal ID :: incubers.sumit@gmail.com
Jake
public static function filter_backend_by_taxonomies($post_type, $which)
{
// Apply this to a specific CPT
if (‘product’ !== $post_type) {
return;
}
// A list of custom taxonomy slugs to filter by
$taxonomies = [ ‘product_cat’ ];
// loop through the taxonomy filters array
foreach( $taxonomies as $slug ){
$taxonomy = get_taxonomy( $slug );
$selected = ”;
// if the current page is already filtered, get the selected term slug
$selected = isset( $_REQUEST[ $slug ] ) ? $_REQUEST[ $slug ] : ”;
// render a dropdown for this taxonomy’s terms
wp_dropdown_categories( array(
‘show_option_all’ => $taxonomy->labels->all_items,
‘taxonomy’ => $slug,
‘name’ => $slug,
‘orderby’ => ‘name’,
‘value_field’ => ‘slug’,
‘selected’ => $selected,
‘hierarchical’ => false,
) );
}
}
Fede
I have no idea if there is a better way but I made it work by copying the entire code right underneath the first chunk of code but replaced the part that says:
add_action( ‘restrict_manage_posts’, ‘filter_backend_by_taxonomies’ , 99, 2);
by
add_action( ‘restrict_manage_posts’, ‘filter_backend_by_taxonomies_your-post-type’ , 99, 2);
and also replacing :
function filter_backend_by_taxonomies_( $post_type, $which )
by:
function filter_backend_by_taxonomies_your-post-type( $post_type, $which )
then replace the other parts where your post type and post type category are.
So the whole thing would be: (replace all the parts where it says “your-post-type” with yours)
/**Add custom filters for Custom Post types on admin panel). */
add_action( ‘restrict_manage_posts’, ‘filter_backend_by_taxonomies_your-post-type’ , 99, 2);
/* Filter CPT via Custom Taxonomy */
/* https://generatewp.com/filtering-posts-by-taxonomies-in-the-dashboard/ */
function filter_backend_by_taxonomies_your-post-type( $post_type, $which ) {
/*if( array( ‘room’, ‘premises’!== $post_type) );
return;*/
// Apply this to a specific CPT
if (‘your-post-type’ !== $post_type )
return;
// A list of custom taxonomy slugs to filter by
$taxonomies = array( ‘your-post-type_category’) ;
foreach ( $taxonomies as $taxonomy_slug ) {
// Retrieve taxonomy data
$taxonomy_obj = get_taxonomy( $taxonomy_slug );
$taxonomy_name = $taxonomy_obj->labels->name;
// Retrieve taxonomy terms
$terms = get_terms( $taxonomy_slug );
// Display filter HTML
echo “”;
echo ” . sprintf( esc_html__( ‘Show All %s’, ‘text_domain’ ), $taxonomy_name ) . ”;
foreach ( $terms as $term ) {
printf(
‘%3$s (%4$s)’,
$term->slug,
( ( isset( $_GET[$taxonomy_slug] ) && ( $_GET[$taxonomy_slug] == $term->slug ) ) ? ‘ selected=”selected”‘ : ” ),
$term->name,
$term->count
);
}
echo ”;
}
}
Max
how do we add another post type to the function, can I just add another post type to the if condition followed by a comma ? such as ” if ( ‘light’, ‘show’ !== $post_type) and adding the taxonomy here as well ( $taxonomies = array( ‘light_category’, ‘show_category’ );
ROSEMARY
it doesnt work. We created the custom taxonomies with CPT UI