Django CreateView ModelForm下拉字段queryset过滤器 [英] Django CreateView ModelForm dropdown field queryset filter

问题描述

这是我第一次使用Django（1.6），但我一直无法弄清楚：

This is my first real go with Django (1.6) and I haven't been able to figure this out:

我正试图限制CreateView仅显示在项目模型中具有活动状态（2）的项目：

I'm trying to limit a dropdown on a CreateView to only show projects that have an active status (2) in the Project model:

class ProjectStatus(models.Model):
    name = models.CharField(max_length=8)

class Project(models.Model):
    name = models.CharField(max_length=30)
    status = models.ForeignKey(ProjectStatus)

class WorkLog(models.Model):
    project = models.ForeignKey(Project)
    author = models.ForeignKey(User)
    log_date = models.DateField( default=datetime.date.today)
    accomplishments = models.TextField()

我的form.py：

class WorklogCreateForm(ModelForm):

class Meta:
    model = WorkLog
    fields = [ 'project', 'log_date', 'accomplishments' ]

def __init__(self, *args, **kwargs):
    super(WorklogCreateForm, self).__init__(self, *args, **kwargs)
    self.fields['project'].queryset = Project.objects.filter(Project.status == 2)

和我的CreateView从views.py：

and my CreateView from views.py:

class WorklogCreate(CreateView):
    form_class = WorklogCreateForm
    success_url = reverse_lazy('dashboard')

但是我收到错误：

TypeError at /log/add/
'bool' object has no attribute '__getitem__'

将我的过滤器更改为（Project.status.id == 2）我改为：

If I change my filter to be (Project.status.id == 2) I instead get:

AttributeError at /log/add/
'ReverseSingleRelatedObjectDescriptor' object has no attribute 'id'

我想我已经接近了，但是显然我没有足够的把握。有任何想法吗？谢谢。

I think I'm close but don't quite have the firm grasp I need apparently. Any ideas? Thanks.

推荐答案

尝试像这样过滤。

 self.fields['project'].queryset = Project.objects.filter(status_id=2)

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