Django Rest Framework序列化器分别渲染表单 [英] Django Rest Framework serializers render form individually

问题描述

我知道如何整体呈现序列化器的形式，但我不知道如何像在模板之类的django形式那样单独呈现序列化器。

I know how to render the form of serializers as a whole but I do not know how to render it individually similar to django forms on a template like

{{ form.name }}
{{ form.name.errors }}

我当前的文件和代码如下：

My current files and codes are the following:

models.py

# Create your models here.
from django.db import models
from pygments.lexers import get_all_lexers
from pygments.styles import get_all_styles

LEXERS = [item for item in get_all_lexers() if item[1]]
LANGUAGE_CHOICES = sorted([(item[1][0], item[0]) for item in LEXERS])
STYLE_CHOICES = sorted((item, item) for item in get_all_styles())


class Snippet(models.Model):
    created = models.DateTimeField(auto_now_add=True)
    title = models.CharField(max_length=100, blank=True, default='')
    code = models.TextField()
    linenos = models.BooleanField(default=False)
    language = models.CharField(choices=LANGUAGE_CHOICES, default='python', max_length=100)
    style = models.CharField(choices=STYLE_CHOICES, default='friendly', max_length=100)

    class Meta:
        ordering = ('created',)

serializers.py

from rest_framework import serializers
from snippets.models import Snippet, LANGUAGE_CHOICES, STYLE_CHOICES


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

form.html

{% extends 'main/base.html' %}
{% load rest_framework %}

{% block content %}
    <div class="container">
        <form method="POST" id="id-login-form" class="panel-body">
            {% csrf_token %}
            {% render_form serializer %}
            <!-- {% render_form serializer template_pack='rest_framework/horizontal' %}
            {% render_form serializer template_pack='rest_framework/vertical' %} -->
            <!-- {{ serializer }} -->

            <input type="submit" value="Save">
        </form>
    </div>
{% endblock %}

推荐答案

DRF提供除了 {％render_form％} 之外的另一个模板标记，实际上是在前者中使用以呈现所有

DRF provides another template tag, in addition to {% render_form %} called {% render_field %} that's actually used within the former to render all the fields.

所以您的 views.py 看起来像这样（您需要发送这种样式 dict在您的响应中）：

So your views.py would look something like this (you need to send this style dict in your response):

class SnippetCreate(APIView):
    renderer_classes = [TemplateHTMLRenderer]
    template_name = 'snippets/snippet_create.html'
    style = {'template_pack': 'rest_framework/vertical/'}

    def get(self, request):
        serializer = SnippetSerializer()
        return Response({'serializer': serializer, 'style': self.style})

    def post(self, request):
        serializer = SnippetSerializer(data=request.data)
        return Response({'serializer': serializer, 'style': self.style})

然后您可以在模板中执行以下操作：

And in your template you could then just do:

{% render_field serializer.title style=style %}

{% render_field serializer.code style=style %}

了解发生情况的最佳方法实际上是查看源代码本身：
https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/templatetags/rest_framework.py#L35

Best way to understand what's going on is actually to look at the source itself: https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/templatetags/rest_framework.py#L35

然后调用

https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/rendere rs.py＃L325

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