(self, value, **kwargs)
| 264 | self.error("Value must be one of %s" % str(choice_list)) |
| 265 | |
| 266 | def _validate(self, value, **kwargs): |
| 267 | # Check the Choices Constraint |
| 268 | if self.choices: |
| 269 | self._validate_choices(value) |
| 270 | |
| 271 | # check validation argument |
| 272 | if self.validation is not None: |
| 273 | if callable(self.validation): |
| 274 | try: |
| 275 | # breaking change of 0.18 |
| 276 | # Get rid of True/False-type return for the validation method |
| 277 | # in favor of having validation raising a ValidationError |
| 278 | ret = self.validation(value) |
| 279 | if ret is not None: |
| 280 | raise DeprecatedError( |
| 281 | "validation argument for `%s` must not return anything, " |
| 282 | "it should raise a ValidationError if validation fails" |
| 283 | % self.name |
| 284 | ) |
| 285 | except ValidationError as ex: |
| 286 | self.error(str(ex)) |
| 287 | else: |
| 288 | raise ValueError( |
| 289 | 'validation argument for `"%s"` must be a ' "callable." % self.name |
| 290 | ) |
| 291 | |
| 292 | self.validate(value, **kwargs) |
| 293 | |
| 294 | @property |
| 295 | def owner_document(self): |
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