Question

让用户可以选择公开主题。这个会需要一个名为public的属性作为Topic模型的一部分（默认情况下应该设置为False）和new_topic页面上的一个表单元素，允许用户将主题从私有更改为public [在此输入链接描述] [1]

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)
    owner = models.ForeignKey(User)

    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)
    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."""
        return self.text[:50] + "..."enter code here

Answer 1

您只需将其添加为Topic型号上的字段：

即可

public = models.BooleanField(default=False)

然后将其添加到TopicForm的字段列表中，它将自动呈现在表单上：

fields = ['text', 'public']

Answer 2

我也陷入了困境。我有模板上的表单元素的解决方案。我已经像复选框那样实现了它：

new_topic.html

<label><input type="checkbox" name="public"/> Public</label>

我通过添加元属性 public ：

编辑了forms.py

forms.py

class TopicForm(forms.ModelForm):
    class Meta:
        model = Topic
        fields = ['text']
        labels = {'text': ''}
        public = forms.BooleanField(required=False)

在new_topic函数下的views.py中，我添加了复选框检查：

@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(request.POST)
        if form.is_valid():
            new_topic = form.save(commit=False)
            new_topic.owner = request.user
            if request.POST["public"]:
                new_topic.public = True
            new_topic.save()
            return HttpResponseRedirect(reverse('learning_logs:topics'))

    context = {'form': form}
    return render(request, 'learning_logs/new_topic.html', context)

单击复选框时，属性public已正确更改为true，但我无法覆盖该主题的@login_required。确切地说，新创建的主题不公开。如果有人在这一点上有解决方案，那就太棒了

在Django模型中添加公共属性

2 个答案: