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I've written a query that is supposed to return all attachments called "no-image" (is part of a function that handle images fallback when there isn't a featured image), the if I get some result, the function returns the first item.

Here's the code:

function misamee_get_image_placeholder($size, $icon = false, $attr = '')
    $transient_key = 'image_placeholder_id';
    $result = get_transient($transient_key);

    if (!$result || empty($result)) {
        $image_name = "no-image";

        $query_args = array(
            'post_type' => 'attachment',
            'post_status' => 'inherit',
            'post_title' => $image_name

        $query = new WP_Query($query_args);
        //echo '<pre>' . print_r($query, true) . '</pre>';

        if ($query->have_posts()) {
            $post = $query->posts[0];
            $result = $post->ID;

        if ($result) {
            set_transient($transient_key, $result, CONTENT_CACHE_LIFETIME);
            return wp_get_attachment_image($result, $size, $icon, $attr);
    return false;

The problem is that this query is clearly ignoring the "post_title" argument, returning all attachments, and therefore returning the last uploaded image (see the commented echo '<pre>' . print_r($query, true) . '</pre>';).

What it's wrong in my query?

share|improve this question
WP_Query doesn't accept a post_title parameter. – montrealist Apr 30 '13 at 13:49
up vote 2 down vote accepted

There is no post_title in WP_Query's parameter list. You need to use name, which accepts a slug not the actual post title.

name (string) - use post slug.

It looks like all you are doing is getting an ID. That is a very heavy query if that is all you need. You can alter the parameters to lighten this up.

$query_args = array(
    'post_type' => 'attachment',
    'post_status' => 'inherit',
    'posts_per_page' => 1, // since you seem to be using only the first result
    'ignore_sticky_posts' => true, // don't juggle sticky posts to the top
    'no_found_rows' => true, // don't calculate total returns
    'name' => $image_name,
    'fields' => 'ids' // only return the post IDs
share|improve this answer
Thank you s_ha_dum! I wonder why I can't query by post_title: I didn't notice that wasn't an option. Also I appreciate your improvement advice to make the query lighter: I already save the result in a transient that expires each few minutes, but it's always good to improve the code :) However, in some cases is not possible to edit the image slug (and I need to allow editors to set the "no-title" for any image I upload). For anyone interested, here is a way to make WP_Query filter by post_title: wordpress.stackexchange.com/questions/22949/query-post-by-title – Andrea Sciamanna Apr 30 '13 at 15:04

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