Get gallery from post object

• redsun

• March 3, 2016 at 3:58 pm

I have a custom post type and each post just has a title and an acf gallery with multiple images. In the admin area on my pages I have assigned a post object “gallery_select” to pull through a list of the galleries (field name “gallery”) belonging to the custom post type. I want to be able to select one gallery and assign it to the page, but am not having much success.

function show_page_gallery() {	
$post_objects = get_field('gallery_select');
if( $post_objects ):
	foreach( $post_objects as $post_object):
		$images = get_field('gallery',$post_object->ID);
		if( $images ):
			foreach( $images as $image ):
				echo '<img src="'.$image['url'].'" />';
			endforeach;
		endif;
	endforeach;
endif;
}

• James

• March 3, 2016 at 5:59 pm

Hi @redsun

Did you call the post object field outside The Loop? If you did, you need to set the post ID for the second parameter like this:

global $post;
$post_objects = get_field('gallery_select', $post->ID);

Also, please make sure that you used a multiple post objects field. If you used a single post object field, you don’t have to loop through the $post_objects variable.

If you still can’t solve the issue, could you please share the JSON or XML export file of your field group?

Thanks!

• redsun

• March 3, 2016 at 8:19 pm

Hi @James

Thank you so much – I’m calling this from functions.php so it’s outside the loop. I only need one gallery so didn’t need the foreach wrapped round the $post_objects variable (and so changed $post_object->ID to $post_objects->ID for the ‘gallery’ field.

function show_page_gallery() {
global $post;
$post_objects = get_field('gallery_select',$post->ID);
if( $post_objects ):
	$images = get_field('gallery',$post_objects->ID);
	if( $images ):
		foreach( $images as $image ):
			echo '<img src="'.$image['url'].'" />';
		endforeach;
	endif;
endif;
}

The example above is much simplified but works. I’ve now added back all the HTML required to wrap and style the gallery images and it’s displaying perfectly.

Thanks again.