Django project serializers

The first step, installation

pip install djangorestframework

The second step is to register the application in settings.py

INSTALLED_APPS = ['rest_framework'
]

The third step is to create a serializers.py file in the appropriate path, as follows:

The main purpose is to obtain the fields of different tables, and collect the fields in multiple tables into a large collection for easy calling

1.model specifies the serialized table

2.fields specify the required fields

3. Put a serialized instance into another serialization, then the field of this instance can also be called in the current serialization, that is, the fields in the two tables are collected together

from rest_framework import serializers
from .models import News,NewsCategory,Comment
from apps.xfzauth.serializers import UserSerializer

class NewsCategorySerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = NewsCategory
        fields = ['id','name']


class NewsSerializer(serializers.HyperlinkedModelSerializer):
    category = NewsCategorySerializer()
    author = UserSerializer()
    class Meta:
        model = News
        fields = ['id','title','desc','thumbnail','category','author','pub_time']


class CommentSerializer(serializers.HyperlinkedModelSerializer):
    author = UserSerializer()
    class Meta:
        model = Comment
        fields = ['id','content','author','pub_time']

The fourth step is to import the serializers.py file in the view, call this file to put the instance to be serialized into the sequence, and then get the data through ajax

many = True: indicates queryset object, False indicates model object, default is False

def news_comment(request):
    commentform = CommentForm(request.POST)
    print(request.POST)
    print(commentform.is_valid())
    if commentform.is_valid():
        content = commentform.cleaned_data.get('content')
        news_id = commentform.cleaned_data.get('news_id')
        news = News.objects.get(pk=news_id)
        comment = Comment.objects.create(content=content,news=news,author=request.user)
        serializer = CommentSerializer(comment,many=True)
        return restful.result(data=serializer.data)
    else:
        return restful.params_error(message=commentform.get_errors())