Updated on 22 Jul 2025
This Pro tutorial provides the steps for populating the images from a JetEngine Gallery-type of custom field into a Slider (Nestable) Bricks element's query loop.
Update: Added code to include featured image at the beginning whilst ensuring that there's no duplication in case the gallery includes the featured image.
Step 1
If you have not already created a meta field for your post type at JetEngine → Post Types, go to JetEngine → Meta Boxes.
Add a new meta box for your post type having a Gallery field.
Step 2
Edit your posts and populate the gallery for each.
Step 3
Let's create a custom PHP function that returns an array of gallery image IDs given the Gallery-type field's key.
Add the following in child theme's functions.php (do not include the opening PHP tag if adding near the end) or a code snippets plugin:
