Crop Featured Image

Hey,

This is not a feature built into the plugin but you can accomplish this with the following code:

add_action('acf/save_post', function ($post_id) {
    
    $value = get_field('my_crop_image_field', $post_id);
    
    if ($value) {
        if (!is_numeric($value)) {
            $value = $value['ID'];
        }
        update_post_meta($post_id, '_thumbnail_id', $value);
        
    // Check if field is here AND empty
    } elseif($value === false) {
        delete_post_meta($post_id, '_thumbnail_id');
    }
    
}, 11);

Just make sure you update my_crop_image_field so it’s the actual name of the ACF crop image field.

The code is originally from this thread.

Hello,

Do I add the code in my functions.php file? If not where do I add the code you provided?

You also said “Just make sure you update my_crop_image_field” What does it mean? I update it with what information? Where do I find my_crop_image_field?

Thanks in advance,
— GM

Hey, my_crop_image_field should be the name of the field that you have specified when creating the field.

The code should go to theme functions.php or a custom plugin.

Using this plugin assumes the user has certain level of coding experience. If using custom code is too difficult, I encourage hiring someone with coding experience to create a custom solution that works in the specific case.

• This reply was modified 2 years, 7 months ago by joppuyo.
• This reply was modified 2 years, 7 months ago by joppuyo.

Thank you so much!

Since this issue is solved, I’m going to close this thread.

Actually I’ve tried your code but I don’t see any change. Thanks for your patience. Maybe I need to hire a developer to see if my theme could be the problem.
It generate a feature image when a video is embedded on a post.

• This reply was modified 2 years, 7 months ago by gmcoffi.