How to use ACF Repeaters with parent & child elements.
With Parent & Child Elements, such as the Checklist Element, we use the ACF Repeater & ACF Repeater Sub Field together.
You can find an example of this on any Single Project page on the Programmer prebuilt. Here, in the Single Project Content Layout Section, you can see the URLs section on the right. Here, a Checklist Element has been used to pull values from the URLs Repeater Field, found in the Project Fields Field Group.
In the Checklist Element, the Dynamic Content of ‘ACF Repeater’ has been applied, and set to the URLs field.
Then in the Child Item field, the ‘ACF Repeater Sub Field’ has been added as the dynamic content, with the Sub Field of project_url.
In this way, however many urls are in the URL Sub Field in each specific project post, would then be repeated on the front end of the post. In this example, there were three URLs added to this specific post.
How To Pull An ACF Repeater Single Value
The ACF Repeater Single Value Dynamic Content allows a single value of the Repeater Sub Fields to be targeted. For example, if you wanted to only pull the first link from the repeater demonstrated above, you could add the Repeater Single Value Dynamic Content into a Text Element, setting the Repeater field name, the Sub Field name, and the value you require. In this example, this would pull the first URL in the Sub Field list.