W3cubDocs

/WordPress

wp_ajax_save_attachment_order()

Ajax handler for saving the attachment order.

Source

File: wp-admin/includes/ajax-actions.php 

function wp_ajax_save_attachment_order() {
	if ( ! isset( $_REQUEST['post_id'] ) ) {
		wp_send_json_error();
	}

	$post_id = absint( $_REQUEST['post_id'] );
	if ( ! $post_id ) {
		wp_send_json_error();
	}

	if ( empty( $_REQUEST['attachments'] ) ) {
		wp_send_json_error();
	}

	check_ajax_referer( 'update-post_' . $post_id, 'nonce' );

	$attachments = $_REQUEST['attachments'];

	if ( ! current_user_can( 'edit_post', $post_id ) ) {
		wp_send_json_error();
	}

	foreach ( $attachments as $attachment_id => $menu_order ) {
		if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
			continue;
		}

		$attachment = get_post( $attachment_id );

		if ( ! $attachment ) {
			continue;
		}

		if ( 'attachment' !== $attachment->post_type ) {
			continue;
		}

		wp_update_post(
			array(
				'ID'         => $attachment_id,
				'menu_order' => $menu_order,
			)
		);
	}

	wp_send_json_success();
}

Uses

Uses Description
wp-includes/capabilities.php: current_user_can()

Returns whether the current user has the specified capability.
wp-includes/pluggable.php: check_ajax_referer()

Verifies the Ajax request to prevent processing requests external of the blog.
wp-includes/functions.php: wp_send_json_error()

Send a JSON response back to an Ajax request, indicating failure.
wp-includes/functions.php: absint()

Convert a value to non-negative integer.
wp-includes/functions.php: wp_send_json_success()

Send a JSON response back to an Ajax request, indicating success.
wp-includes/post.php: wp_update_post()

Update a post with new post data.
wp-includes/post.php: get_post()

Retrieves post data given a post ID or post object.

Changelog

Version Description
3.5.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_ajax_save_attachment_order