Load images into Gallery in code

• robnero

• November 16, 2015 at 9:25 am

I’m slightly familiar with the load_value filter, and using it in the functions.php file. I’m using the filter now to compile a lot of data, and then pre-populate a wysiwyg field upon a form loading in the frontend.

Can I do this for a gallery too?

I would like to query the posts and find images that are attached, and then pre-populate the gallery field with these images.

thanks!

• John Huebner

• November 18, 2015 at 12:41 pm

Yes, you can do this. In the load value filter for the gallery field you would return and array of attachment IDs.

• robnero

• November 18, 2015 at 7:10 pm

Thanks John! I knew that, but your message sparked me to look from another angle!

I had this:
$value = array(array('ID' => '253'), array('ID' => '170'));

But, it should be this:
$value = array('253', '170');

Used this full function:

//IMAGES field
	function load_team_summary_images( $value, $post_id, $field ){
	    global $allUpdatesImages;
	    
	    $value = $allUpdatesImages;
	
	    return $value;
	}
	add_filter('acf/load_value/key=field_564900d0c98d1', 'load_team_summary_images', 10, 3);

Works perfectly. I am attaching the images (from a Gallery field) to the post, so I used get_attached_media('image', $oUpdateID); with the post ID to get all the IDs of the attached media.