WP_Query on custom taxonomy works fine but fails if run through wp_ajax_

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I’m using WP_Query to collate some info about posts based on their custom taxonomy.
My arguments are as follows: 

$args = array(
        'posts_per_page'=> -1,
        'post_status' => 'publish'
    );

    if ( isset($_POST['tag_id']) ) :
        $args['tax_query'] =
            array(array(
                'taxonomy' => 'region',
                'field' => 'id',
                'terms' => $_POST['tax_id'],
            ));
    endif;

Then I loop through and collate my data. And that works perfectly well. But because it’s quite a heavy query, and appears for each taxonomy id I thought I’d run it on user demand and return the data with wp_ajax_

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The same query seems to ignore all the tax_query arguments when returned through ajax. The arguments are the same and the correct “terms” is being passed. It’s identical. I can’t figure it out. Is this a bug? It’s bugging me.

Updated to put the code in pastebin:
http://pastebin.com/rxSJ1C2n

The class is at the top, then the bit of jQuery I’ve put at the bottom but is actually in a separate file.

Post Views: 5

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1 comment

  1. I don’t see your call to the ajaxurl in your code. Are you actually getting an ajax response?

    Try this javascript:

    jQuery(document).ready( function($) {
    $("a.getviews").click( function() {
        var td = $(this).parent();
        /* only fetch results once */
        $(this).unbind('click').bind('click', function(){return false;});
        // replace button with loader
        $(td).html('<span class="loader"></span>');

        $.ajax({
                type: 'POST',
                url: ajaxurl,
                data: { action: "get_views", tax_id: td.attr("id") },
                success: function(response) {
                $("td").html(response);
                return false;                               
            }

            });

            });
    });

    With large ajax responses I always have better luck buffering the output.

    Add ob_start(); before your loop then at the end add:

    $response = ob_get_contents();
                ob_end_clean();

            echo $response;

                die(1);