wordpress nav menu does not recognize single-post as child of a term

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I have a problem and I’m pulling my hair out over it.

I have a vertical nav menu which lists a taxonomy’s terms and child terms.

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The child terms all own a set of posts.

Upon visiting a single-post page, the menu defaults to top level and doesn’t recognize that the single post is a child of any menu item. (i.e. belongs to a tax term in the menu)

Does anyone know how to have a wordpress nav menu recognize when the single post currently being displayed is a child of a term in the menu?

These pics should clarify:

Here I’m viewing gallery of items for term “filigree” child-term “rings”
Viewing gallery of items for term filigree child-term rings

After Clicking on a single ring, the menu retracts to default and no highlight to show current state
Click on a single ring and menu retracts to default and no highlight

Note that “our products” is always bold and not part of the menu. (don’t get me started on that)

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  1. I found a work around to solve this, thought I’d post it in case it’s useful to anobody else out there. Here is my code:

     <?php 
    $terms = wp_get_object_terms($post->ID, 'products');


    if( is_single() ){  ?>
        <script type="text/javascript">
            jQuery(function(){
                jQuery('.menu').find(":contains('<?php echo $terms[1]->name; ?>')").show().addClass('current-menu-item');
            });         
        </script>
        <?php 
    }

?>

    </body>

    Note that ‘products’ is a taxonomy name and the jQuery selector simply parses my <ul> of menu items, finds a child element containing the target term and adds the class which wordpress uses to mark the current menu item ‘current-menu-item’