post_parent ) ) break; if ( !$post = get_post( $revision->post_parent ) ) break; // Revisions disabled and we're not looking at an autosave if ( ( ! WP_POST_REVISIONS || !post_type_supports($post->post_type, 'revisions') ) && !wp_is_post_autosave( $revision ) ) { $redirect = 'edit.php?post_type=' . $post->post_type; break; } check_admin_referer( "restore-post_$post->ID|$revision->ID" ); wp_restore_post_revision( $revision->ID ); $redirect = add_query_arg( array( 'message' => 5, 'revision' => $revision->ID ), get_edit_post_link( $post->ID, 'url' ) ); break; case 'diff' : if ( !$left_revision = get_post( $left ) ) break; if ( !$right_revision = get_post( $right ) ) break; if ( !current_user_can( 'read_post', $left_revision->ID ) || !current_user_can( 'read_post', $right_revision->ID ) ) break; // If we're comparing a revision to itself, redirect to the 'view' page for that revision or the edit page for that post if ( $left_revision->ID == $right_revision->ID ) { $redirect = get_edit_post_link( $left_revision->ID ); include( './js/revisions-js.php' ); break; } // Don't allow reverse diffs? if ( strtotime($right_revision->post_modified_gmt) < strtotime($left_revision->post_modified_gmt) ) { $redirect = add_query_arg( array( 'left' => $right, 'right' => $left ) ); break; } if ( $left_revision->ID == $right_revision->post_parent ) // right is a revision of left $post =& $left_revision; elseif ( $left_revision->post_parent == $right_revision->ID ) // left is a revision of right $post =& $right_revision; elseif ( $left_revision->post_parent == $right_revision->post_parent ) // both are revisions of common parent $post = get_post( $left_revision->post_parent ); else break; // Don't diff two unrelated revisions if ( ! WP_POST_REVISIONS || !post_type_supports($post->post_type, 'revisions') ) { // Revisions disabled if ( // we're not looking at an autosave ( !wp_is_post_autosave( $left_revision ) && !wp_is_post_autosave( $right_revision ) ) || // we're not comparing an autosave to the current post ( $post->ID !== $left_revision->ID && $post->ID !== $right_revision->ID ) ) { $redirect = 'edit.php?post_type=' . $post->post_type; break; } } if ( // They're the same $left_revision->ID == $right_revision->ID || // Neither is a revision ( !wp_get_post_revision( $left_revision->ID ) && !wp_get_post_revision( $right_revision->ID ) ) ) break; $post_title = '' . get_the_title() . ''; $h2 = sprintf( __( 'Compare Revisions of “%1$s”' ), $post_title ); $title = __( 'Revisions' ); $left = $left_revision->ID; $right = $right_revision->ID; $redirect = false; break; case 'view' : default : if ( !$revision = wp_get_post_revision( $revision_id ) ) break; if ( !$post = get_post( $revision->post_parent ) ) break; if ( !current_user_can( 'read_post', $revision->ID ) || !current_user_can( 'read_post', $post->ID ) ) break; // Revisions disabled and we're not looking at an autosave if ( ( ! WP_POST_REVISIONS || !post_type_supports($post->post_type, 'revisions') ) && !wp_is_post_autosave( $revision ) ) { $redirect = 'edit.php?post_type=' . $post->post_type; break; } $post_title = '' . get_the_title() . ''; $revision_title = wp_post_revision_title( $revision, false ); $h2 = sprintf( __( 'Revision for “%1$s” created on %2$s' ), $post_title, $revision_title ); $title = __( 'Revisions' ); // Sets up the diff radio buttons $left = $revision->ID; $right = $post->ID; $redirect = false; break; endswitch; // Empty post_type means either malformed object found, or no valid parent was found. if ( !$redirect && empty($post->post_type) ) $redirect = 'edit.php'; if ( !empty($redirect) ) { wp_redirect( $redirect ); exit; } // This is so that the correct "Edit" menu item is selected. if ( !empty($post->post_type) && 'post' != $post->post_type ) $parent_file = $submenu_file = 'edit.php?post_type=' . $post->post_type; else $parent_file = $submenu_file = 'edit.php'; require_once( './admin-header.php' ); ?>

$field_title ) : if ( 'diff' == $action ) { $left_content = apply_filters( "_wp_post_revision_field_$field", $left_revision->$field, $field ); $right_content = apply_filters( "_wp_post_revision_field_$field", $right_revision->$field, $field ); if ( !$content = wp_text_diff( $left_content, $right_content ) ) continue; // There is no difference between left and right $identical = false; } else { add_filter( "_wp_post_revision_field_$field", 'htmlspecialchars' ); $content = apply_filters( "_wp_post_revision_field_$field", $revision->$field, $field ); } ?>

'form-table', 'parent' => true, 'right' => $right, 'left' => $left ); if ( ! WP_POST_REVISIONS || !post_type_supports($post->post_type, 'revisions') ) $args['type'] = 'autosave'; wp_list_post_revisions( $post, $args ); ?>