wp_create_post_autosave( mixed $post_data )
Creates autosave data for the specified post from $_POST data.
Parameters
- $post_data
-
(Required) Associative array containing the post data or int post ID.
Return
(mixed) The autosave revision ID. WP_Error or 0 on error.
Source
File: wp-admin/includes/post.php
function wp_create_post_autosave( $post_data ) {
if ( is_numeric( $post_data ) ) {
$post_id = $post_data;
$post_data = $_POST;
} else {
$post_id = (int) $post_data['post_ID'];
}
$post_data = _wp_translate_postdata( true, $post_data );
if ( is_wp_error( $post_data ) )
return $post_data;
$post_data = _wp_get_allowed_postdata( $post_data );
$post_author = get_current_user_id();
// Store one autosave per author. If there is already an autosave, overwrite it.
if ( $old_autosave = wp_get_post_autosave( $post_id, $post_author ) ) {
$new_autosave = _wp_post_revision_data( $post_data, true );
$new_autosave['ID'] = $old_autosave->ID;
$new_autosave['post_author'] = $post_author;
// If the new autosave has the same content as the post, delete the autosave.
$post = get_post( $post_id );
$autosave_is_different = false;
foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields( $post ) ) ) as $field ) {
if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
$autosave_is_different = true;
break;
}
}
if ( ! $autosave_is_different ) {
wp_delete_post_revision( $old_autosave->ID );
return 0;
}
/**
* Fires before an autosave is stored.
*
* @since WP-4.1.0
*
* @param array $new_autosave Post array - the autosave that is about to be saved.
*/
do_action( 'wp_creating_autosave', $new_autosave );
return wp_update_post( $new_autosave );
}
// _wp_put_post_revision() expects unescaped.
$post_data = wp_unslash( $post_data );
// Otherwise create the new autosave as a special post revision
return _wp_put_post_revision( $post_data, true );
}
Changelog
Version | Description |
---|---|
WP-2.6.0 | Introduced. |