Django Rest FrameWork再练习

可能有重构目前应用的需求，rest framework是值得有必要深入去了解的。

所以，这应该是第三次看官方文档来练习，

希望能获取更深入的记忆。

__author__ = 'CHENGANG882'
from rest_framework import serializers
from .models import Snippet, LANGUAGE_CHOICES, STYLE_CHOICES

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

    def create(self, validated_data):
        return Snippet.objects.create(**validated_data)

    def update(self, instance, validated_data):
        instance.title = validated_data.get('title', instance.title)
        instance.code = validated_data.get('code', instance.code)
        instance.linenos = validated_data('linenos', instance.linenos)
        instance.language = validated_data('language', instance.language)
        instance.style = validated_data('style', instance.style)
        instance.save()
        return instance