python - 呈现 : 'BoundField' object is not iterable 时捕获类型错误

Question

我正在尝试将标签列表显示为 tag.name(而不是列表)。但是，当我尝试在列表上运行 for 循环时，它会抛出 "Caught TypeError while rendering: 'BoundField' object is not iterable."

  <dd>{% for tag in form.tags %}{{tag.name}}{% endfor %}</dd>

遍历 .all 将加载页面，但不显示 Tags 字段。

  <dd>{% for tag in form.tags.all %}{{tag.name}}{% endfor %}</dd>



  class Profile(models.Model):

    user = models.ForeignKey(User)

  tagging.register(Profile)




form = ProfileForm(initial={
        "fullname":fullname,
        "location":request.user.get_profile().location,
        "website":request.user.get_profile().website,
        "twitter_account":request.user.get_profile().twitter_account,
        "email":request.user.email,
        "bio":request.user.get_profile().bio,
        "tags":request.user.get_profile().tags
    })



    class ProfileForm(forms.Form):
        fullname = forms.CharField(
             label=_("Full Name"),
             widget=forms.TextInput(),
                            required=False)

        location = forms.CharField(
             label=_("Location"),
             widget=forms.TextInput(),
                            required=False)

        website = forms.CharField(
             label=_("Website"),
             widget=forms.TextInput(),
                            required=False)

        twitter_account = forms.CharField(
             label=_("Twitter"),
             widget=forms.TextInput(),
                            required=False)

        bio = forms.CharField(
             label=_("Bio"),
             widget=forms.Textarea(),
                            required=False)

        tags = forms.CharField(
    label=_("Keywords"),
    widget=forms.Textarea(),
                            required=False)           

非常感谢!

Answer 1

来自 Howto Post 的代码

---

模板:

{% for tag in blogpost.get_tags %}
  <a href="/blog/tag/{{tag}}" alt="{{tag}}" title="{{tag}}">{{tag}}</a>
{%endfor%}

---

型号:

from django.db import models
from tagging.fields import TagField
from tagging.models import Tag

class BlogPost(models.Model):

    title = models.CharField(max_length=30)
    body = models.TextField()
    date_posted = models.DateField(auto_now_add=True)
    tags = TagField()

    def set_tags(self, tags):
        Tag.objects.update_tags(self, tags)

    def get_tags(self, tags):
        return Tag.objects.get_for_object(self)