如何在django中创建一个与多个关系的动态生成的表单 [英] how to make dynamically generated forms with one to many relationships in django

问题描述

我正在尝试编写一个测验系统来学习django，用户可以在系统中添加quizes。
我的模型看起来像

i am trying to write a quiz system to learn django where users can add quizes to the system. my models look like

from google.appengine.ext import db

class Quiz(db.Model):
 title=db.StringProperty(required=True)
 created_by=db.UserProperty()
 date_created=db.DateTimeProperty(auto_now_add=True)


class Question(db.Model):
 question=db.StringProperty(required=True)
 answer_1=db.StringProperty(required=True)
 answer_2=db.StringProperty(required=True)
 answer_3=db.StringProperty(required=True)
 correct_answer=db.StringProperty(choices=['1','2','3','4'])
 quiz=db.ReferenceProperty(Quiz)

我的问题是如何创建Form +视图+模板来向用户​​显示一个页面来创建$ c
到目前为止我已经提出了这一点。
视图：

my question is how do create Form+views+templates to present user with a page to create quizes so far i have come up with this. Views:

from google.appengine.ext.db.djangoforms import ModelForm
from django.shortcuts import render_to_response
from models import Question,Quiz
from django.newforms import Form 



def create_quiz(request):

 return render_to_response('index.html',{'xquestion':QuestionForm(),'xquiz':QuizForm()})

class QuestionForm(ModelForm):
 class Meta:
  model=Question
  exclude=['quiz']

class QuizForm(ModelForm):
 class Meta:
  model=Quiz
  exclude=['created_by']

模板（index.html）

template(index.html)

  Please Enter the Questions
<form action="" method='post'>
 {{xquiz.as_table}}
 {{xquestion.as_table}}
 <input type='submit'>
</form>

我如何在测验表单中有多个问题？

How can i have multiple Questions in the quiz form?

推荐答案

到目前为止，如果没有错误，那么现在你应该具有呈现的表单的工作视图。

so far so good, as of now you should be having a working view with the forms rendered, if there are no errors.

现在您只需要处理 create_quiz 视图

if request.method == 'POST':
    xquiz = QuizForm(request.POST)
    quiz_instance = xquiz.save(commit=False)
    quiz_instance.created_by = request.user
    quiz_instance.save()
    xquestion = QuestionForm(request.POST)
    question_instance = xquestion.save(commit=False)
    question_instance.quiz = quiz_instance
    question_instance.save()

更新：如果您正在寻找多个问题表单，那么您需要查看formets， http：//docs.dja ngoproject.com/en/dev/topics/forms/modelforms/#id1

update: if you are looking for multiple question forms then you need to look at formsets, http://docs.djangoproject.com/en/dev/topics/forms/modelforms/#id1

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