验证期间Django Rest Framework序列化程序丢失了ListField数据

Question

I want to serialize a list of strings as well as some other fields. Somehow it doesn't appear to be in validate data.

class OptionsSerializer(serializers.Serializer):
    lst = serializers.ListField(
        serializers.CharField(),
    )
    field_a = serializers.CharField()
    field_b = serializers.IntegerField()

Request payload:

{"lst":["abc"],"field_a":"some text","field_b":1}

Debugger output:

ipdb> serializer.is_valid()
True
ipdb> serializer.validated_data
OrderedDict([('field_a', 'some text'), ('field_b', 1)])

Any ideas about why is it so?

Answer 1

Documentation says you need to set child keyword argument of ListField.

child - A field instance that should be used for validating the objects in the list. If this argument is not provided then objects in the list will not be validated.

Try this:

lst = serializers.ListField(
    child=serializers.CharField()
)

Answer 2

child is keyword argument, therefore you need to initialize the ListField like this:

 lst = serializers.ListField(
        child=serializers.CharField(),
 )