从Wordpress中的媒体库中检索特定图像

Question

I developed a theme in which I show a Bootstrap carousel filled with sponsor images. At the moment the sponsor-images are hardcoded like this:

<div class="item active">
  <div class="row outerDiv">
    <div class="col-xs-12 innerDiv">
      <a href="<?php echo bloginfo('url'); ?>/recruiting-messe/"><img class="carImg img-responsive" src="<?php bloginfo('template_url')?>/images/Sponsoren/PremiumSponsoren.jpg" alt="Premium Sponsoren" style="margin: 0 auto;"></a>
    </div>
  </div>
</div>

I want my authors to be able to change the images without being required to dig into the code itself, but I don't know how to go about it. I thought about maybe retrieving images uploaded into the media library with a certain naming convention or a caption "sponsor" with a loop? What would be the best way to implement something like this and how? Thanks in advance!

Answer 1

Something like this.

$attachment_meta = wp_get_attachment(your_attachment_id);
$caption = $attachment_meta['caption'];

if($caption == 'sponsor') :
// show me the money
endif;

Answer 2

What about just use a plug in for it? Or designate a post,attach a gallery, and use gallery short code for a simple bootstrap carousel to use? Hope this helps.

Answer 3

Maybe you can do the following, use some meta fields plugin like this and add image field where the author can choose which image is sponsored. Then you can do something like this

if($current_attachment_id == get_field('image_field')){
     //Do the trick
}

Answer 4

Thanks to everyone who tried to help. I solved the problem by querying for attachements with a specific title "SponsorenBanner".

$query_images_args = array(
      'post_type'      => 'attachment',
      'post_mime_type' => 'image',
      'post_status'    => 'inherit',
      'posts_per_page' => - 1,
      'title' => 'SponsorenBanner',
      'order' => 'ASC',
      );

    $query_images = new WP_Query( $query_images_args );

    $images = array();
    foreach ( $query_images->posts as $image ) {

      $images[] = wp_get_attachment_url( $image->ID );

    }