Python rest_framework.serializers 模块，FloatField() 实例源码

def typemap(self, p):
        mapping = {
            ParameterType.String : serializers.CharField,
            ParameterType.Number : serializers.FloatField,
            ParameterType.Integer : serializers.IntegerField,
            ParameterType.Boolean : serializers.BooleanField,
            ParameterType.Array : serializers.ListField,
            ParameterType.Enum : serializers.ChoiceField,
            ParameterType.File : serializers.FileField
        }

        return mapping.get(p, None)

    # TODO: properly handle array and enums

def get_value(self, dictionary):
        """Get value."""
        value = super(FloatField, self).get_value(dictionary)
        return to_representation(value)

def test_should_float_convert_float():
    assert_conversion(serializers.FloatField, graphene.Float)

def __init__(self, allow_extra):
        class Model(serializers.Serializer):
            id = serializers.IntegerField()
            client_name = serializers.CharField(max_length=255)
            sort_index = serializers.FloatField()
            # client_email = serializers.EmailField(required=False, allow_null=True)
            client_phone = serializers.CharField(max_length=255, required=False, allow_null=True)

            class Location(serializers.Serializer):
                latitude = serializers.FloatField(required=False, allow_null=True)
                longitude = serializers.FloatField(required=False, allow_null=True)
            location = Location(required=False, allow_null=True)

            contractor = serializers.IntegerField(required=False, allow_null=True, min_value=0)
            upstream_http_referrer = serializers.CharField(max_length=1023, required=False, allow_null=True)
            grecaptcha_response = serializers.CharField(min_length=20, max_length=1000)
            last_updated = serializers.DateTimeField(required=False, allow_null=True)

            class Skill(serializers.Serializer):
                subject = serializers.CharField()
                subject_id = serializers.IntegerField()
                category = serializers.CharField()
                qual_level = serializers.CharField()
                qual_level_id = serializers.IntegerField()
                qual_level_ranking = serializers.FloatField(default=0)
            skills = serializers.ListField(child=Skill())

        self.allow_extra = allow_extra  # unused
        self.serializer = Model

def field_to_schema(field):
    title = force_text(field.label) if field.label else ''
    description = force_text(field.help_text) if field.help_text else ''

    if isinstance(field, serializers.ListSerializer):
        child_schema = field_to_schema(field.child)
        return coreschema.Array(
            items=child_schema,
            title=title,
            description=description
        )
    elif isinstance(field, serializers.Serializer):
        return coreschema.Object(
            properties=OrderedDict([
                (key, field_to_schema(value))
                for key, value
                in field.fields.items()
            ]),
            title=title,
            description=description
        )
    elif isinstance(field, serializers.ManyRelatedField):
        return coreschema.Array(
            items=coreschema.String(),
            title=title,
            description=description
        )
    elif isinstance(field, serializers.RelatedField):
        return coreschema.String(title=title, description=description)
    elif isinstance(field, serializers.MultipleChoiceField):
        return coreschema.Array(
            items=coreschema.Enum(enum=list(field.choices.keys())),
            title=title,
            description=description
        )
    elif isinstance(field, serializers.ChoiceField):
        return coreschema.Enum(
            enum=list(field.choices.keys()),
            title=title,
            description=description
        )
    elif isinstance(field, serializers.BooleanField):
        return coreschema.Boolean(title=title, description=description)
    elif isinstance(field, (serializers.DecimalField, serializers.FloatField)):
        return coreschema.Number(title=title, description=description)
    elif isinstance(field, serializers.IntegerField):
        return coreschema.Integer(title=title, description=description)

    if field.style.get('base_template') == 'textarea.html':
        return coreschema.String(
            title=title,
            description=description,
            format='textarea'
        )
    return coreschema.String(title=title, description=description)