BookStack\PageRevision::getPrevious PHP Method

getPrevious() public method

Get the previous revision for the same page if existing
public getPrevious ( ) : PageRevision | null
return PageRevision | null
    public function getPrevious()
    {
        if ($id = static::where('page_id', '=', $this->page_id)->where('id', '<', $this->id)->max('id')) {
            return static::find($id);
        }
        return null;
    }