錯誤:(隱藏的字段）選擇一個有效的選擇。 （Django）

Question

我在進行選擇並點擊提交後收到此錯誤消息。我不確定它是如何修復它的。我試圖在頁面上的表單中隱藏HiddenInput。是否有另一種方式做到這一點比在forms.py

Models.py

from django.db import models from django.utils import timezone 
from django import forms 
from django.forms import ModelForm 
from django.contrib.auth.models import User 
from random import randrange 

class Type(models.Model): 
    type = models.CharField(max_length=50) 

    def _unicode__(self): 
     return self.type 

class WordManager(models.Manager): 

    def random(self, type): 
     words = Word.objects.filter(type__type=type) 

     return words[randrange(len(words))] 


class Word(models.Model): 
    dict = models.CharField(max_length=200) 
    type = models.ForeignKey(Type) 

    objects = WordManager() 

    def __unicode__(self): 
     return u'%s %s' % (self.dict, self.type) 

class Question(models.Model): 
    question = models.CharField(max_length=200) 

    def __unicode__(self): 
     return self.question 


class Meta(models.Model): 
    user = models.CharField(max_length=200) 
    time = models.DateTimeField('date published') 

class Result(models.Model): 
    question = models.ForeignKey(Question) 
    word = models.ManyToManyField(Word) 
    user = models.ForeignKey(User) 
    score = models.IntegerField() 

Forms.py

from django import forms 
from django.contrib.auth.models import User 
from django.forms import ModelForm 

from quest.models import Result, Question, Word 

class ResultForm(ModelForm): 
    CHOICES = (
('1', '1'), ('2','2'), ('3','3'), ('4', '4'), ('5', '5') 
) 
question = forms.ModelChoiceField(queryset=Question.objects.all(), widget=forms.HiddenInput()) 
word = forms.ModelChoiceField(queryset=Word.objects.all(), widget=forms.HiddenInput()) 
user = forms.ModelChoiceField(queryset=User.objects.all(), widget=forms.HiddenInput()) 
score = forms.ChoiceField(choices=CHOICES, widget=forms.RadioSelect()) 

class Meta: 
    model = Result 


class UserForm(ModelForm): 
    class Meta: 
     model = User 
     fields = ('username',) 

Views.py

from django.contrib.auth import authenticate, login 
from django.core.urlresolvers import reverse 
from django.shortcuts import render, render_to_response, HttpResponseRedirect 
from django.template import RequestContext 
from django.utils import timezone 

from random import randrange 
import re 

from quest.models import Word, Type, Question, Meta 
from quest.forms import ResultForm, UserForm 

def index(request): 
    state = "Enter ID and password below" 
    username = password = '' 
    if request.POST: 
     username = request.POST.get('username') 
     password = request.POST.get('password') 

     user = authenticate(username=username, password=password) 
     if user is not None: 
      if user.is_active: 
       login(request, user) 
       state = "You're successfully logged in!" 
      else: 
       state = "Your account is disabled." 
     else: 
      state = "Your username and password were incorrect." 

    return render_to_response('index.html',{'state':state, 'username': username}, context_instance=RequestContext(request)) 


def question(request): 
    # Find all words to be replaced from the question marked by '$' 
    question = Question.objects.get(id=1) 

    word_types = re.findall(r"\w+[$]", question.question) 
    word_types = [find_w.rstrip("$") for find_w in word_types] 
    words = [Word.objects.random(type) for type in word_types] 

    question_text = question.question.replace("$", "") 
    for word in words: 
     question_text = question_text.replace(word.type.type, word.dict) 
for word in words: 
    question_text = question_text.replace(word.type.type, word.dict) 

if request.method == 'POST': 
    form = ResultForm(request.POST) 
    if form.is_valid(): 
     form.save() 
     return HttpResponseRedirect(reverse('question')) 
    else: 
     for error in form.errors: 
      print error 
else: 
    form = ResultForm(initial={'question': question.id, 'word': [word.id for word in words], 'user': request.user.id}) 

return render_to_response('quest/question.html', {'final': question_text, 'form': form}, context_instance=RequestContext(request)) 

Answer 1

word = forms.ModelChoiceField(queryset=Word.objects.all(), widget=forms.HiddenInput()) 

其他

作爲一個選擇fi有什麼意義？現在，如果沒有人可以選擇它嗎？ 好的，現在我得到了你想要做的。但下面仍然適用。

而且這樣的：

'word': [word.id for word in words] 

在initial形式的數據是錯誤的。 ModelChoiceField presents很多的選擇 但只有一個可以選擇。所以'word': someword.id將是正確的。

作爲一個方面說明，也許this將有助於如何從 模型中選擇隨機數據。