Django 如何自动更改布尔字段的值？

此特定的布尔字段确定文章是否为草稿。默认设置为True

当用户编辑草稿时，我希望该值自动更改为False，以便与所有其他帖子一起列出（而不是在草稿列表中）

“提交”按钮是否可以同时提交帖子和更改布尔值？我认为，理想情况下，一旦输入草稿表单，该字段就会更改

以下是相关代码： 编辑草稿的模板

{{ title }}</B></h3></div>
<div class="row">
    <div class="col-sm-12-md-7 col-sm-offset-0 col-sm-8">
        <div class="panel panel default">
            <div class="panel-body">
                <p class="well col-sm-offset-3 col-sm-12">{{ summary }}</p>

                <form class="form-horizontal" method="post" action="" enctype="multipart/form-data">
                    {% csrf_token %}
                    {% include 'posts/form-template.html' %}
                    <div class="form-group col-sm-offset-3 col-sm-6">

                        <div class="col-sm-offset-9 col-sm-10">
                            <button type="submit" class="btn btn-primary">Send</button>
                        </div>

                    </div>

                </form>
            </div>
        </div>
    </div>
</div>

class UpdateForm(forms.ModelForm):
    class Meta:
        model = Post
        fields = [
            "title", "content", "categories", "tags",
        ]

def post_update(request, id=None):
    instance = get_object_or_404(Post, id=id)
    model = Post
    form = UpdateForm(request.POST or None, instance=instance)
    if form.is_valid():
        instance = form.save(commit=False)
        instance.save()

    context = {
        "title": instance.title,
        "instance": instance,
        "form": form,
        "summary": instance.summary,
    }
    return render(request, "posts/suggest_form_update.html", context)

这是Post模型

class Post(models.Model):
        user = models.ForeignKey(settings.AUTH_USER_MODEL, default=1)
        title = models.CharField(max_length=100)
        content = HTMLField()
        draft = models.BooleanField(default=True)
        updated = models.DateTimeField(auto_now=True, auto_now_add=False)
        upvote = VotableManager()
        timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
        categories = models.ManyToManyField(
            'category.Category',
            help_text='Categorize this item.'
        )
        tags = models.ManyToManyField(
            'category.Tag',
            help_text='Tag this item.'
        )

        suggest = models.ForeignKey('Suggest', blank=True, null=True, default=0)


        def get_absolute_url(self):
            return reverse('posts:detail', kwargs={'pk': self.pk})

        def __str__(self):
            return self.title

以下是编辑草稿的视图

{{ title }}</B></h3></div>
<div class="row">
    <div class="col-sm-12-md-7 col-sm-offset-0 col-sm-8">
        <div class="panel panel default">
            <div class="panel-body">
                <p class="well col-sm-offset-3 col-sm-12">{{ summary }}</p>

                <form class="form-horizontal" method="post" action="" enctype="multipart/form-data">
                    {% csrf_token %}
                    {% include 'posts/form-template.html' %}
                    <div class="form-group col-sm-offset-3 col-sm-6">

                        <div class="col-sm-offset-9 col-sm-10">
                            <button type="submit" class="btn btn-primary">Send</button>
                        </div>

                    </div>

                </form>
            </div>
        </div>
    </div>
</div>

class UpdateForm(forms.ModelForm):
    class Meta:
        model = Post
        fields = [
            "title", "content", "categories", "tags",
        ]

def post_update(request, id=None):
    instance = get_object_or_404(Post, id=id)
    model = Post
    form = UpdateForm(request.POST or None, instance=instance)
    if form.is_valid():
        instance = form.save(commit=False)
        instance.save()

    context = {
        "title": instance.title,
        "instance": instance,
        "form": form,
        "summary": instance.summary,
    }
    return render(request, "posts/suggest_form_update.html", context)

---

您可以通过两种方式完成此任务：

在保存对象之前，在您的视图中（在

if form.is_valid（）：

条件中）

通过自定义

save（）

方法，在您的表单中

def save(self, *args, **kwargs):
    self.instance.draft = True
    return super(UpdateForm, self).save(*args, **kwargs)

---

“**这是编辑草稿的视图**”你的视图在哪里？？？@PrakharTrivedi谢谢。现在添加了它。是什么阻止你自己在视图中这样做？你有实例，为什么不能设置draft=False？@TomHiggins Daniel是对的。你应该在你的views.py文件中这样做。这是推荐的方法。@DanielRoseman，Prakar我觉得自己像个白痴！这很有效。谢谢！