python - 将帖子标题转换为 CamelCase

Question

我正在尝试将帖子标题转换为 CamelCase 以创建 Twitter 主题标签，我正在使用 strip 但它返回一个对象，我不知道这是否是正确的方法？

# views.py
def post_create(request):
    if not request.user.is_authenticated():
        raise Http404

    form_class = PostCreateForm
    if request.method == 'POST':

        form = form_class(request.POST, request.FILES)
        if form.is_valid():

            instance = form.save(commit=False)
            instance.creator = request.user
            instance.slug = slugify(instance.title)
            instance.hashtag = instance.title.strip()
            instance.save()


            slug = slugify(instance.title)
            return redirect(instance.get_absolute_url())

    else:
        form = form_class()

    context = {
        'form': form,
    }

    return render(request, "posts/post_create.html", context)

返回 <built-in method strip of unicode object at 0x031ECB48>在模板 var 中，我正在寻找的结果是这样的 MyPostTitle进入模板

    # Template view
    <h3>#{{instance.hashtag|title}}</h3>

模型.py

class Post(models.Model):
    creator = models.ForeignKey(ProfileUser)
    title = models.CharField(max_length=80)
    hashtag = models.CharField(max_length=80)
    slug = models.SlugField(unique=True)

    def __unicode__(self):
        return self.title

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

Answer 1

strip 仅删除字符串开头或结尾的空格 ( https://docs.python.org/2/library/string.html#string.strip )。你可能会使用

instance.hashtag = instance.title.replace(' ', '')

作为旁注，将此功能作为方法添加到您的模型类中可能会更清晰:

class Post(models.Model):
    ...
    def hashtag(self):
        if self.title is not None:
            return self.title.replace(' ', '')