Find the object referenced by a given field name. The field name *field_name* can be for instance "0.name" or "lookup[3]". The *args* and *kwargs* arguments are passed to get_value().
(self, field_name, args, kwargs)
| 298 | return _string.formatter_parser(format_string) |
| 299 | |
| 300 | def get_field(self, field_name, args, kwargs): |
| 301 | """Find the object referenced by a given field name. |
| 302 | |
| 303 | The field name *field_name* can be for instance "0.name" |
| 304 | or "lookup[3]". The *args* and *kwargs* arguments are |
| 305 | passed to get_value(). |
| 306 | """ |
| 307 | first, rest = _string.formatter_field_name_split(field_name) |
| 308 | obj = self.get_value(first, args, kwargs) |
| 309 | # loop through the rest of the field_name, doing |
| 310 | # getattr or getitem as needed |
| 311 | for is_attr, i in rest: |
| 312 | if is_attr: |
| 313 | obj = getattr(obj, i) |
| 314 | else: |
| 315 | obj = obj[i] |
| 316 | return obj, first |