Python rest_framework.fields.ChoiceField() Examples

The following are 1 code examples of rest_framework.fields.ChoiceField(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module rest_framework.fields , or try the search function .
Example #1
Source File: serializers.py    From django-rest-framework-mongoengine with MIT License 4 votes vote down vote up 
def build_standard_field(self, field_name, model_field):
        field_mapping = ClassLookupDict(self.serializer_field_mapping)

        field_class = field_mapping[model_field]
        field_kwargs = get_field_kwargs(field_name, model_field)

        if 'choices' in field_kwargs:
            # Fields with choices get coerced into `ChoiceField`
            # instead of using their regular typed field.
            field_class = self.serializer_choice_field
            # Some model fields may introduce kwargs that would not be valid
            # for the choice field. We need to strip these out.
            # Eg. models.DecimalField(max_digits=3, decimal_places=1, choices=DECIMAL_CHOICES)
            valid_kwargs = set((
                'read_only', 'write_only',
                'required', 'default', 'initial', 'source',
                'label', 'help_text', 'style',
                'error_messages', 'validators', 'allow_null', 'allow_blank',
                'choices'
            ))
            for key in list(field_kwargs.keys()):
                if key not in valid_kwargs:
                    field_kwargs.pop(key)

        if 'regex' in field_kwargs:
            field_class = drf_fields.RegexField

        if not issubclass(field_class, drfm_fields.DocumentField):
            # `model_field` is only valid for the fallback case of
            # `ModelField`, which is used when no other typed field
            # matched to the model field.
            field_kwargs.pop('model_field', None)

        if not issubclass(field_class, drf_fields.CharField) and not issubclass(field_class, drf_fields.ChoiceField):
            # `allow_blank` is only valid for textual fields.
            field_kwargs.pop('allow_blank', None)

        if field_class is drf_fields.BooleanField and field_kwargs.get('allow_null', False):
            field_kwargs.pop('allow_null', None)
            field_kwargs.pop('default', None)
            field_class = drf_fields.NullBooleanField

        return field_class, field_kwargs