Menu Adam R Brown

WP hooks navigation: Home/browseActions indexFilters index

Source View: attachment_fields_to_save

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
673            * Filters the attachment fields to be saved.
674            *
675            * @since 2.5.0
676            *
677            * @see wp_get_attachment_metadata()
678            *
679            * @param array $post       An array of post data.
680            * @param array $attachment An array of attachment metadata.
681            */
682           $post = apply_filters( 'attachment_fields_to_save', $post, $attachment );
683
684           if ( isset($attachment['image_alt']) ) {
685                $image_alt = wp_unslash( $attachment['image_alt'] );
686                if ( $image_alt != get_post_meta($attachment_id, '_wp_attachment_image_alt', true) ) {
687                     $image_alt = wp_strip_all_tags( $image_alt, true );
688
689                     // Update_meta expects slashed.
690                     update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
691                }