CODEWITHSUNDEEP
pythondjangoserializationdjango-rest-framework
copser
copser

Reputation: 2641

TypeError in Django REST framework Tutorial 1: Serialization

I was wondering can someone help me and clarify this error for me.

I am doing the Django REST Framework Tutorial, and I got to the part when I am creating a Serializer class.

from django.forms import widgets
from rest_framework import serializers
from snippets.models import Snippet, LANGUAGE_CHOICES, STYLE_CHOICES

class SnippetSerializer(serializers.ModelSerializer):
    pk = serializers.IntegerField(read_only=True)
    title = serializers.CharField(required=False,
                                  max_length=100)
    code = serializers.CharField(style={'type': 'textarea'})
    linenos = serializers.BooleanField(required=False)
    language = serializers.ChoiceField(choices=LANGUAGE_CHOICES,
                                       default='python')
    style = serializers.ChoiceField(choices=STYLE_CHOICES,
                                    default='friendly')

class Meta:
    model = Snippet
    fields = ('id', 'title', 'code', 'linenos', 'language', 'style')


def create(self, validated_attrs):
    """
    Create and return a new 'Snippet' instance, given the validated data.
    """
    return Snippet.objects.create(**validated_attrs)

def update(self, instance, validated_attrs):
    """
    Update and return an existing 'Snippet' instance, given the validated data.
    """
    instance.title = validated_attrs.get('title', instance.title)
    instance.code = validated_attrs.get('code', instance.code)
    instance.linenos = validated_attrs.get('linenos', instance.linenos)
    instance.language = validated_attrs.get('language', instance.language)
    instance.style = validated_attrs.get('style', instance.style)
    instance.save()
    return instance

Now mine problem is this, when I go in to the shell to serialize and when I want to import from snippets.serializers import SnippetSerializer the module throw this error:

>>> from snippets.serializers import SnippetSerializer

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/petarp/Documents/Django_Rest_Framework/serialization_tutorial/tutorial/snippets/serializers.py", line 6, in <module>
    class SnippetSerializer(serializers.ModelSerializer):
  File "/home/petarp/Documents/Django_Rest_Framework/serialization_tutorial/tutorial/snippets/serializers.py", line 10, in SnippetSerializer
    code = serializers.CharField(style={'type': 'textarea'})
  File "/home/petarp/.virtualenvs/env/local/lib/python2.7/site-packages/rest_framework/fields.py", line 468, in __init__
    super(CharField, self).__init__(*args, **kwargs)
TypeError: __init__() got an unexpected keyword argument 'style'

Can someone please clarify this error and help me overcome this.

Upvotes: 2

Views: 1371

Answers (1)

mariodev
mariodev

Reputation: 15484

Use widget attribute do define form field type:

code = serializers.CharField(widget=forms.Textarea())

You're probably using DRF v2.x.x, which doesn't support style argument in Field class

Upvotes: 3

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