|  | @@ 1053-1058 (lines=6) @@ | 
                                                            
                                    | 1050 |  |         if ($action == 'add-column') { | 
                                                            
                                    | 1051 |  |             $nn = ($params->nn ? " NOT NULL" : ""); | 
                                                            
                                    | 1052 |  |             $default = null; | 
                                                            
                                    | 1053 |  |             if ($params->default === null) { | 
                                                            
                                    | 1054 |  |                 $default = " DEFAULT NULL"; | 
                                                            
                                    | 1055 |  |             } elseif (strlen($params->default)) { | 
                                                            
                                    | 1056 |  |                 $default = " DEFAULT {$this->_escape($params->default)}"; | 
                                                            
                                    | 1057 |  |             } | 
                                                            
                                    | 1058 |  |             $this->sql .= " ADD COLUMN `{$params->name}` {$params->dataType}" . $nn . $default; | 
                                                            
                                    | 1059 |  |         } elseif ($action == 'drop-column') { | 
                                                            
                                    | 1060 |  |             $this->sql .= " DROP COLUMN "; | 
                                                            
                                    | 1061 |  |             foreach ($params as $col) { | 
                                                                                
                                |  | @@ 1072-1077 (lines=6) @@ | 
                                                            
                                    | 1069 |  |             $this->sql .= " MODIFY COLUMN"; | 
                                                            
                                    | 1070 |  |             $nn = ($params->nn ? " NOT NULL" : ""); | 
                                                            
                                    | 1071 |  |             $default = null; | 
                                                            
                                    | 1072 |  |             if ($params->default === null) { | 
                                                            
                                    | 1073 |  |                 $default = " DEFAULT NULL"; | 
                                                            
                                    | 1074 |  |             } elseif (strlen($params->default)) { | 
                                                            
                                    | 1075 |  |                 $default = " DEFAULT {$this->_escape($params->default)}"; | 
                                                            
                                    | 1076 |  |             } | 
                                                            
                                    | 1077 |  |             $this->sql .= " `{$params->name}` `{$params->new_name}` {$params->dataType}" . $nn . $default; | 
                                                            
                                    | 1078 |  |         } | 
                                                            
                                    | 1079 |  |  | 
                                                            
                                    | 1080 |  |         if (self::$autorun) { |