Within my Flexible Content, I’ve created a new layout with an Image field. I am trying to use it to update the post’s featured image. After multiple search attempts, the only thing I was able to find was this:
function acf_set_featured_image( $value, $post_id, $field ){
if($value != ''){
//Add the value which is the image ID to the _thumbnail_id meta data for the current post
update_post_meta($post_id, '_thumbnail_id', $value);
}
return $value;
}
// acf/update_value/name={$field_name} - filter for a specific field based on it's name
add_filter('acf/update_value/name=featimage', 'acf_set_featured_image', 10, 3);
Now this code works perfectly with a stand-alone Image Field, but I can’t get it to work through an Image Field within Flexible Content. Can someone help me with this?
Hi @byoo
Please keep in mind that the value of flexible content has a different structure. So it should be something like this:
function my_acf_save_post( $post_id ) {
// get the flexible content raw values
$flexible_content = get_field('flexible_content_field_name', $post_id, false);
// check if the post has flexible content or not
if( $flexible_content ){
// loop through the values
foreach($flexible_content as $row){
// check if the image is set in certain layout
// please change 'layout_name' with your layout name and
// 'field_1234567890abc' with the image field key
if( $row['acf_fc_layout'] == 'layout_name' && isset($row['field_1234567890abc']) ){
// update the featured image
update_post_meta($post_id, '_thumbnail_id', $row['field_1234567890abc']);
}
}
}
}
// run after ACF saves the $_POST['acf'] data
add_action('acf/save_post', 'my_acf_save_post', 20);
Where “flexible_content_field_name” is the flexible content field name, “layout_name” is the layout name where the image field is located, and “field_1234567890abc” is the image field key.
I hope this helps 🙂
