Title: greglbd's Replies | WordPress.org

---

# greglbd

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## Forum Replies Created

Viewing 1 replies (of 1 total)

 *   Forum: [Themes and Templates](https://wordpress.org/support/forum/themes-and-templates/)
   
   In reply to: [[Understrap] [gallery] shortcode is not working](https://wordpress.org/support/topic/gallery-shortcode-is-not-working/)
 *  [greglbd](https://wordpress.org/support/users/greglbd/)
 * (@greglbd)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/gallery-shortcode-is-not-working/#post-8570813)
 * Hi,
 * I kinda solved this, it’s a little hacky but uses bootstrap. I actually wanted
   a carousel rather than thumbs but this is what i have. It seems a few attributes
   were missing from the `shortcode_atts` array.
 *     ```
       <?php
       //Based on Jeff Hays code and his article here: http://robido.com/wordpress/wordpress-gallery-filter-to-modify-the-html-output-of-the-default-gallery-shortcode-and-style/ 
       // Custom filter function to modify default gallery shortcode output
       // Adapted by Greg Conn of Live Breathe Digital to output a bootstrap carousel.
       function bootstrap_wp_gallery( $output, $attr ) {
   
       	// Initialize
       	global $post, $wp_locale;
   
       	// Gallery instance counter
       	static $instance = 0;
       	$instance++;
   
       	// Validate the author's orderby attribute
       	if ( isset( $attr['orderby'] ) ) {
       		$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
       		if ( ! $attr['orderby'] ) unset( $attr['orderby'] );
       	}
   
       	// Get attributes from shortcode
       	extract( shortcode_atts( array(
       		'order'      => 'ASC',
       		'orderby'    => 'menu_order ID',
       		'id'         => $post->ID,
       		'itemtag'    => 'div',
       		'icontag'    => 'div',
       		'captiontag' => 'div',
       		'columns'    => 3,
       		'size'       => 'thumbnail',
       		'exclude'    => '',
       		'include'    => '',
       		'ids'        => ''
       	), $attr ) );
   
       	// Initialize
       	$id = intval( $id );
       	$attachments = array();
       	if ( $order == 'RAND' ) $orderby = 'none';
   
       	if ( ! empty( $include ) ) {
   
       		// Include attribute is present
       		$include = preg_replace( '/[^0-9,]+/', '', $include );
       		$_attachments = get_posts( array( 'include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby ) );
   
       		// Setup attachments array
       		foreach ( $_attachments as $key => $val ) {
       			$attachments[ $val->ID ] = $_attachments[ $key ];
       		}
   
       	} else if ( ! empty( $exclude ) ) {
   
       		// Exclude attribute is present 
       		$exclude = preg_replace( '/[^0-9,]+/', '', $exclude );
   
       		// Setup attachments array
       		$attachments = get_children( array( 'post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby ) );
       	} else {
       		// Setup attachments array
       		$attachments = get_children( array( 'post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby ) );
       	}
   
       	if ( empty( $attachments ) ) return '';
   
       	// Filter gallery differently for feeds
       	if ( is_feed() ) {
       		$output = "\n";
       		foreach ( $attachments as $att_id => $attachment ) $output .= wp_get_attachment_link( $att_id, $size, true ) . "\n";
       		return $output;
       	}
   
       	// Filter tags and attributes
       	$itemtag = tag_escape( $itemtag );
       	$captiontag = tag_escape( $captiontag );
       	$columns = intval( $columns );
       	$itemwidth = $columns > 0 ? floor( 12 / $columns ) : 100;
       	$float = is_rtl() ? 'right' : 'left';
       	$selector = "gallery-{$instance}";
   
        // Filter gallery CSS
        //<div id='$selector' class='gallery galleryid-{$id} row'>"
       	$output = apply_filters( 'gallery_style', "		
   
           <div id='gallery-carousel' class='carousel slide galleryid-{$id}' data-ride='carousel'>
             <div class='carousel-inner' role='listbox' data-link='".isset( $attr['link'] ) ."' data-file='".$attr['link']."'>"
       	);
   
   
   
       	// Iterate through the attachments in this gallery instance
       	$i = 0;
       	foreach ( $attachments as $id => $attachment ) {
   
       		// Attachment link
       		$link = isset( $attr['link'] ) && 'file' == $attr['link'] ? wp_get_attachment_link( $id, $size, false, false, false, array('class'=>'carousel-image') ) : wp_get_attachment_link( $id, $size, true, false, false, array('class'=>'carousel-image') ); 
   
           if(!isset($attr) || (isset( $attr['link'] ) && 'none' == $attr['link'])) {
             $link = wp_get_attachment_image( $id, $size, false, array('class'=>'carousel-image') );
           }
   
   
       		// Start itemtag
       		$active = ($i==0 ? 'active' :'');
       		$output .= "<{$itemtag} class='carousel-item {$active}'>";
   
       		// icontag
       		$output .= "
   
       			$link
       		";
   
       		if ( $captiontag && trim( $attachment->post_excerpt ) ) {
   
       			// captiontag
       			$output .= "
       			<{$captiontag} class='carousel-caption'>
       				" . wptexturize($attachment->post_excerpt) . "
       			</{$captiontag}>";
   
       		}
   
       		// End itemtag
       		$output .= "</{$itemtag}>";
   
       		// Line breaks by columns set
       		//if($columns > 0 && ++$i % $columns == 0) $output .= '<br style="clear: both">';
           ++$i;
       	}
   
       	// End gallery output
       	$output .= "
       		<a class='left carousel-control' href='#gallery-carousel' role='button' data-slide='prev'>
           <span class='fa fa-angle-left' aria-hidden='true'></span>
           <span class='sr-only'>Previous</span>
         </a>
         <a class='right carousel-control' href='#gallery-carousel' role='button' data-slide='next'>
           <span class='fa fa-angle-right' aria-hidden='true'></span>
           <span class='sr-only'>Next</span>
         </a>
       	</div></div>\n";
   
       	return $output;
   
       }
   
       // Apply filter to default gallery shortcode
       add_filter( 'post_gallery', 'bootstrap_wp_gallery', 10, 2 );
       ```
   

Viewing 1 replies (of 1 total)