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So I had asked (in retrospect a pretty non-question) at A little help/cleanup from a real coder? and one of the comments was to not use query_posts and instead use WP_Query. So I did a little digging and tried to implement that, now the code isn't working fully. The MultiPostThumbnails isn't pulling the img I'm only getting the the_post_thubnail not additional img. What am I doing wrong here?

function efs_get_slider(){

    $slider= '<div id="ctslider">
                <div class="flexslider">
                    <ul class="slides">';

    $my_posts = new WP_Query();
    $efs_query= "post_type=slider-image";

    if($my_posts->have_posts()) : while ($my_posts->have_posts()) : $my_posts->the_post(); 

        $flexID = $my_posts->ID;
        $img1= wp_get_attachment_image( get_post_thumbnail_id($flexID),'full',0 );
        $imagemain =  preg_replace( '/(width|height)=\"\d*\"\s/', "", $img1 );

        if (class_exists('MultiPostThumbnails')) {
            $image_name = 'feature-image-2';
            if (MultiPostThumbnails::has_post_thumbnail('slider-image', $image_name)) {
                $image_id = MultiPostThumbnails::get_post_thumbnail_id(
                $attr = array('class' => "secondaryslider");
                $image = wp_get_attachment_image( $image_id, 'full', false, $attr );
                $imagesecondary = preg_replace(

        $cttitle = get_the_title();
        $ctexcerpt = get_the_excerpt();

        $slider.='<li><div class="fourcol secondaryimg">'.$imagesecondary.'</div>';
        $slider.='<div class="threecol flex-caption"><h3>'.
        $slider.='<div class="fivecol last">'.$imagemain.'</div></li>';

    endwhile; endif; wp_reset_postdata();

    $slider.= '</ul>

    return $slider;
share|improve this question
What point is it failing at? Does it not get $image_id? Or is it after that? – mor7ifer Apr 21 '12 at 2:26
yes, it's not getting the $image_id...it's like it's not passing the post ID to the MultiPostThumbnails::get_post_thumbnail_id – Brian Thornton Apr 21 '12 at 6:24
does get_the_ID() work if you try to execute it? – mor7ifer Apr 21 '12 at 8:46
up vote 1 down vote accepted

I'm not familiar with MultiPostThumbnails, but I suspect your problem is:

$flexID = $my_posts->ID;

That code appears to be trying to get the ID of the WP_Query object itself. I don't think that exists. Even if it does, it won't do you much good.

Rather, use this:

$flexID = get_the_ID();

That code gets the ID of the current post in the loop.

In general, make sure to review the WP_Query codex page. You can tighten things up quite a bit. For instance, your whole query can be on one line:

$my_posts = new WP_Query( 'post_type=slider-image' );
share|improve this answer
+1 for the last line. I think the underlying problem is that the new WP_Query() is instantiated without the custom arguments. To use custom args, the construct should be $my_query = new WP_Query( $args ). – Chip Bennett Apr 21 '12 at 22:20
mrwweb, that did the trick...AND it explained what I was missing. my_posts->id getting the id of the wp_query...oi. And, cleaned up a few lines. @m0r7if3r looks like you were on the right track. Now I'm going to read up on get_the_ID() vs $post->ID or whatever the hell I was trying to do! And, Chip, I was able to get it to work before I cleaned up the custom args, so it did work by instantiating w/o the custom args, but...cleaner code all on one line. Thanks!! – Brian Thornton Apr 21 '12 at 23:34

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