Display deepest child category for current product in woocommerce
It seems like it should be easy to do, but I have not been able and cannot find any posts about it.
I can display all categories related to a product or top category, but how do you echo only the lowest / deepest category for a product?
Cat-A [x]
Cat-B [x]
Cat-C [x]
Cat-D [ ]
Cat-E [ ]
Cat-F [ ]
Cat-G [ ]
Cat-H [ ]
If this example is a product pedigree, all I want to print is "Cat-C".
But I don't want to manually set the category level like other solutions, I want it to always print the junior child, is a product on an archive page or a separate product page.
Any idea on how / should this be done?
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Try something like:
// get all product cats for the current post
$categories = get_the_terms( get_the_ID(), 'product_cat' );
// wrapper to hide any errors from top level categories or products without category
if ( $categories && ! is_wp_error( $category ) ) :
// loop through each cat
foreach($categories as $category) :
// get the children (if any) of the current cat
$children = get_categories( array ('taxonomy' => 'product_cat', 'parent' => $category->term_id ));
if ( count($children) == 0 ) {
// if no children, then echo the category name.
echo $category->name;
}
endforeach;
endif;
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I finally found anwser at https://wordpress.stackexchange.com/a/55921/59863 I added the correct taxonomy for woocommerce and foreach / echo at the bottom to spit out the name.
//Get all terms associated with post in woocommerce taxonomy 'product_cat'
$terms = get_the_terms( $post->ID, 'product_cat' );
//Get an array of their IDs
$term_ids = wp_list_pluck($terms,'term_id');
//Get array of parents - 0 is not a parent
$parents = array_filter(wp_list_pluck($terms,'parent'));
//Get array of IDs of terms which are not parents.
$term_ids_not_parents = array_diff($term_ids, $parents);
//Get corresponding term objects.
$terms_not_parents = array_intersect_key($terms, $term_ids_not_parents);
//Extract the name of the category from the array and post it.
foreach($terms_not_parents as $term_not_parent)
echo $term_not_parent->name;
The only drawback of this code is that if a product has only 1 category with a parent value of 0, it will break. I don't need this functionality at the moment, but I'm going to go back and fix it with "if null".
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