我正在尝试创建一个项目，在这里您可以创建主题，对于未经身份验证的用户可以是私有的或公开的。然后，您可以在每个主题中输入多个条目，以应用于该主题。现在，我试图在我的new_topic.html中选中一个复选框，如果选中该复选框，它将计算为True，否则为False。但是，当我选中该复选框时，我无法使该复选框的评估结果为True。并且由于某种原因，页面上有两个适用于new_topic.html的复选框；一个带有标签，另一个带有一个盒子。
db.sqlite3数据库。但这没用。request.POST.get('public', False)函数中使用new_topic()。
我的learning_logs/models.py如下：
from django.db import models
from django.contrib.auth.models import User
class Topic(models.Model):
"""A topic the user is learning about."""
text = models.CharField(max_length=200)
date_added = models.DateTimeField(auto_now_add=True)
public = models.BooleanField(default=False)
owner = models.ForeignKey(User, on_delete=models.CASCADE)
def __str__(self):
"""Return a string representation of the model."""
return self.text
class Entry(models.Model):
"""Something specific learned about a topic."""
topic = models.ForeignKey(Topic, on_delete=models.CASCADE)
text = models.TextField()
date_added = models.DateTimeField(auto_now_add=True)
class Meta:
verbose_name_plural = 'entries'
def __str__(self):
"""Return a string representation of the model."""
# Add an ellipsis ONLY if the entry,
# is more than 50 characters long.
if self.text > self.text[:50]:
return self.text[:50] + "..."
elif self.text <= self.text[:50]:
return self.text[:50]
我的learning_logs\views.py如下：
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponseRedirect, Http404
from django.urls import reverse
from django.contrib.auth.decorators import login_required
from .models import Topic, Entry
from .forms import TopicForm, EntryForm
def index(request):
"""The Home Page for Learning Log."""
return render(request, 'learning_logs/index.html')
def check_topic_owner(request, topic):
"""Checks if the topic requested, is requested by the owner.
Else return Http404.
"""
if topic.owner != request.user:
raise Http404
@login_required
def topics(request):
"""Show all topics."""
topics = Topic.objects.filter(owner=request.user).order_by('date_added')
context = {'topics': topics}
return render(request, 'learning_logs/topics.html', context)
@login_required
def topic(request, topic_id):
"""Show a single topic and all its entries."""
topic = get_object_or_404(Topic, id=topic_id)
# Make sure the Topic belongs to the current user.
check_topic_owner(request, topic)
entries = topic.entry_set.order_by('-date_added')
context = {'topic': topic, 'entries': entries}
return render(request, 'learning_logs/topic.html', context)
@login_required
def new_topic(request):
"""Add a new topic."""
if request.method != 'POST':
# No data submitted; create a blank form.
form = TopicForm()
else:
# POST data submitted; process data.
form = TopicForm(data=request.POST)
if form.is_valid():
new_topic = form.save(commit=False)
new_topic.owner = request.user
new_topic.save()
return HttpResponseRedirect(reverse('learning_logs:topics'))
context = {'form': form}
return render(request, 'learning_logs/new_topic.html', context)
@login_required
def new_entry(request, topic_id):
"""Add a new entry for the particular topic."""
topic = get_object_or_404(Topic, id=topic_id)
check_topic_owner(request, topic)
if request.method != 'POST':
# No data submitted; create a blank form.
form = EntryForm()
else:
# POST data submitted; process data.
form = EntryForm(data=request.POST)
if form.is_valid():
new_entry = form.save(commit=False)
new_entry.topic = topic
if new_entry.topic.owner == request.user:
new_entry.save()
else:
return Http404
return HttpResponseRedirect(reverse('learning_logs:topic',
args=[topic_id]))
context = {'topic': topic, 'form': form}
return render(request, 'learning_logs/new_entry.html', context)
@login_required
def edit_entry(request, entry_id):
"""Edit an existing entry."""
entry = get_object_or_404(Entry, id=entry_id)
topic = entry.topic
check_topic_owner(request, topic)
if request.method != 'POST':
# Initial request; pre-fill form with the current entry.
form = EntryForm(instance=entry)
else:
# POST data submitted; process data.
form = EntryForm(instance=entry, data=request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect(reverse('learning_logs:topic',
args=[topic.id]))
context = {'entry': entry, 'topic': topic, 'form': form}
return render(request, 'learning_logs/edit_entry.html', context)
我的learning_logs\forms.py如下：
from django import forms
from .models import Topic, Entry
class TopicForm(forms.ModelForm):
class Meta:
model = Topic
fields = ['text']
labels = {'text': ''}
class EntryForm(forms.ModelForm):
class Meta:
model = Entry
fields = ['text']
labels = {'text': ''}
widgets = {'text': forms.Textarea(attrs={'cols': 80})}
我的learning_logs\templates\learning_logs\new_topic.html如下：
{% extends "learning_logs/base.html" %}
{% load bootstrap3 %}
{% block header %}
<h2>New topic:</h2>
{% endblock header %}
{% block content %}
<h1>Add a new topic:</h1>
<form action="{% url 'learning_logs:new_topic' %}" method='post'
class="form">
{% csrf_token %}
{% bootstrap_form form %}
<div class="form-check">
<input class="form-check-input" type="checkbox" value=True id="public">
<label class="form-check-label" for="public">
Make it public?
</label>
</input>
</div>
{% buttons %}
<button name="submit" class="btn btn-primary">Add Topic</button>
{% endbuttons %}
</form>
{% endblock content %}
我似乎无法解决此错误。提前致谢！任何帮助表示赞赏。
答案 0 :(得分：1)
您有：
<input class="form-check-input" type="checkbox" value=True id="public">
<label class="form-check-label" for="public">
Make it public?
</label>
</input> # <<< this closing tag is wrong
正确的input标签：
<input class="form-check-input" type="checkbox" value=True id="public" />
因此，您将拥有：
<label class="form-check-label" for="public">
Make it public?
</label>
<input class="form-check-input" type="checkbox" value=True id="public" />