This thread is resolved. Here is a description of the problem and solution.
Problem: I would like to automatically set a post's featured image using the first image in a repeating custom image field.
Solution:
You can use the cred_save_data hook to check the repeating images and get the attachment ID of the first one, then assign that image ID to the _thumbnail_id attribute of the post to set it as the featured image.
add_action('cred_save_data', 'save_img_0_as_featured',10,2);
function save_img_0_as_featured($post_id, $form_data) {
$forms = array( 123, 456 );
if ( in_array( $form_data['id'], $forms ) )
{
$imgs = get_post_meta( $post_id, 'wpcf-rept-img');
if(isset($imgs) && isset($imgs[0])) {
$img = $imgs[0];
$attachment_id = attachment_url_to_postid( $img );
update_post_meta( $post_id, '_thumbnail_id', $attachment_id );
}
}
}
Change 123, 456 to be a comma-separated list of Form IDs where you want to apply this code. Then change rept-img to match your repeating image field slug.
Relevant Documentation:
https://toolset.com/documentation/programmer-reference/cred-api/#cred_save_data
https://developer.wordpress.org/reference/functions/attachment_url_to_postid/
https://codex.wordpress.org/Function_Reference/update_post_meta
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This topic contains 2 replies, has 2 voices.
Last updated by 6 years, 3 months ago.
Assisted by: Christian Cox.
