Connect Gravity Forms Multi File Upload and Advanced Custom Fields Repeating File-Field #gravity-forms #acf

gf-acf-multi-file-upload.php

<?php
 	 /**
	 * Connect Gravity Forms Multi File Upload and Advanced Custom Fields Repeating File-Field and Gallery Field
	 * REMEMBER: Set ID correctly for forms and fields AND set acf field names
	 */
	 add_action( 'gform_after_submission_4', 'add_form_after_submission', 10, 2 );
	 function add_form_after_submission( $entry, $form ) {

    	//getting post
    	$post = get_post( $entry['post_id'] );

	    if( $post != null ) {

			// Fotos, Gallery Field
			if( rgar( $entry, '30' ) != null && !empty(rgar( $entry, '30' ) ) ) {
                gravity_forms_acf_add_files_to_media_library( $post, $entry, '30', 'acf_production_gallery' ); // @TODO
            }

			// Dokumenter, Repeating File-Field
			if( rgar( $entry, '51' ) != null && !empty(rgar( $entry, '51' ) ) ) {
                gravity_forms_acf_add_files_to_media_library( $post, $entry, '51', 'acf_production_documents', 'acf_production_documents_file' ); // @TODO
            }
		}

		return;
	}

	function gravity_forms_acf_add_files_to_media_library( $post, $entry, $gravity_form_field_id, $acf_field_name, $acf_sub_field_name = null ) {
		$array_file_urls = stripslashes( rgar( $entry, $gravity_form_field_id ) );
	    $array_file_urls = json_decode( $array_file_urls, true );
	    add_files_to_media_library( $post, $array_file_urls, $acf_field_name, $acf_sub_field_name );
	}

	function add_files_to_media_library( $post, $array_file_urls, $acf_field_name, $acf_sub_field_name = null ) {

	    $acf_file_id_array = array();
		$wp_upload_dir = wp_upload_dir();

	    foreach( $array_file_urls as $key => $file_url ) {

	        // $file = rtrim( ABSPATH, '/' ) . parse_url( $file_url , PHP_URL_PATH );
	        $filename = basename( $file_url );
	        $upload_file = wp_upload_bits( $filename, null, file_get_contents( $file_url ) );

	        if ( !$upload_file['error'] ) {

	        	$wp_filetype = wp_check_filetype( $filename, null );
	        	$attachment = array(
					'guid' => $wp_upload_dir['url'] . '/' . $filename,
	        		'post_mime_type' => $wp_filetype['type'],
	        		'post_parent' => $post->ID,
	        		'post_title' => preg_replace('/\.[^.]+$/', '', $filename),
	        		'post_content' => '',
	        		'post_status' => 'inherit'
	        	);

	        	$attachment_id = wp_insert_attachment( $attachment, $upload_file['file'], $post->ID );

	            if ( !is_wp_error( $attachment_id ) ) {
					require_once( ABSPATH . 'wp-admin' . '/includes/image.php' );
	        		require_once( ABSPATH . 'wp-admin' . '/includes/media.php' );
	        		$attachment_data = wp_generate_attachment_metadata( $attachment_id, $upload_file['file'] );
	        		wp_update_attachment_metadata( $attachment_id, $attachment_data );

					if( $acf_sub_field_name != null ) {
						array_push( $acf_file_id_array, array( $acf_sub_field_name => $attachment_id ) );
					} else {
						array_push( $acf_file_id_array, $attachment_id );
					}
	        	}


	        }
	    }

	    if( !empty( $acf_file_id_array ) ) {
	        update_field( $acf_field_name, $acf_file_id_array, $post->ID );
	    }
	}