Gravity Perks // GP Media Library // ACF // Auto-attach Uploaded Files to Post created by "GF-Advanced Post Creation Add-On"

gp-media-library-attach-media-gform_advancedpostcreation.php

<?php
/**
 * Gravity Perks // GP Media Library // ACF
 * Auto-attach Uploaded Files to Post created by "GF-Advanced Post Creation Add-On"
 * this function help if you wish to attach the Files to the Post you generate
 * If you use ACF and limit File/Image/Gallery Field (Files uploaded to this post) this is necessary
 * 
 * Install & Activate GP Media Library, Install & Activate Advanced Post Creation Add-On
 * use GF-Upload-Field > Perk > Upload to Media Libray checkbox:true
 * at Post Creation > Feed Settings => dont use Media Library (empty Select File Upload Fields)
 * at Post Creation > Feed Settings => use your ACF Fieldname and select File Upload Field at Dropdown
 * Set ACF Field Return Value to ID
 * Enjoy that you can limit ACF Field for Files uploaded to this post
 * 
 * http://gravitywiz.com/documentation/gp-media-library/
 * https://gravitywiz.com/uploading-files-to-advanced-custom-fields-using-the-gravity-forms-advanced-post-creation-add-on/
 * https://docs.gravityforms.com/advanced-post-creation-add-on-using-third-party-post-types/
*/


add_action( 'gform_advancedpostcreation_post_after_creation', function( $post_id, $feed, $entry, $form ) {
    if( is_callable( 'gp_media_library' ) ) {
        $file_ids = gp_media_library()->get_file_ids_by_entry( $entry, $form );
        if( $file_ids ) {
            foreach( $file_ids as $field_id => $_file_ids ) {
                foreach( $_file_ids as $file_id ) {
                    wp_update_post( array(
                        'ID' => $file_id,
                        'post_parent' => $post_id
                    ) );
                }
            }
        }
    }
}, 10, 4 );