deletes a field from a row
| 456 | |
| 457 | |
| 458 | class FieldDeleteClause(BaseDeleteClause): |
| 459 | """ deletes a field from a row """ |
| 460 | |
| 461 | def __init__(self, field): |
| 462 | super(FieldDeleteClause, self).__init__(field, None) |
| 463 | |
| 464 | def __unicode__(self): |
| 465 | return '"{0}"'.format(self.field) |
| 466 | |
| 467 | def update_context(self, ctx): |
| 468 | pass |
| 469 | |
| 470 | def get_context_size(self): |
| 471 | return 0 |
| 472 | |
| 473 | |
| 474 | class MapDeleteClause(BaseDeleteClause): |