
了解数据库技术:SQLite与MySQL的比较
wp_create_post_autosave ( $post_data )
wp_create_post_autosave: 这是一个为一个文章创建自动保存的函数。它可以用来在用户编辑时自动保存对文章的修改。
从`$_POST`数据中为指定的文章创建自动保存数据。
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. $old_autosave = wp_get_post_autosave( $post_id, $post_author ); if ( $old_autosave ) { $new_autosave = _wp_post_revision_data( $post_data, true ); $new_autosave['ID'] = $old_autosave->ID; $new_autosave['post_author'] = $post_author; $post = get_post( $post_id ); // If the new autosave has the same content as the post, delete the autosave. $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 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 ); }