我一直在上下搜索,似乎找不到正确的答案。你知道吗
我一直在玩django和我的测试项目,我不知道如何实现这一点,我试图显示下拉列表内容动态根据外键从我的看法
以下是我的示例视图:
def job_display(request):
job_list = Job_Posting.objects.filter(Publication_Status="A", Available_Slots__gt=0).order_by('-Urgency_Status', '-Date_Modified')
context = {'job_list': job_list}
return render(request, 'frontend/home.html', context)
def save_page(request, job_id):
jreq = get_object_or_404(Job_Posting, fkey=job_id)
form = application_form(request.POST)
if request.method == 'POST':
.....
else:
.....
return render(request, 'frontend/apply.html ... )
我的URL:
urlpatterns = patterns('',
url(r'^$', views.job_display, name='job_display'),
url(r'^(?P<job_id>[0-9]+)/apply$', views.save_page, name='save_page'),
)
我的表格:
class edbackgound(ModelForm):
COURSE = forms.ModelChoiceField(queryset=Educational_Requirement.objects.all())
我的模型:
class Course_Selection(models.Model):
Course = models.CharField(max_length=30, unique=True)
Abbreviation = models.CharField(max_length=100, unique=True)
class Job(models.Model):
Job_Position = models.CharField(max_length=30, null=True, unique=True)
class Job_Posting(models.Model):
fkey = models.OneToOneField(Job, verbose_name="Job Positions")
....
class Educational_Requirement(models.Model):
fkey = models.OneToOneField(Job_Posting, verbose_name="Job Positions")
Ed_req = models.OneToOneField(Course_Selection, verbose_name = 'Educational Requirement')
def __unicode__(self):
return self.Ed_req
我的问题是在modelform中显示选项,在我的视图中,我可以通过save_page
的jreq
通过jreq.fkey
得到当前选中的job_list
,然后保存我的表单。如何通过选定的job_list
填充窗体的ModelChoiceField
。你知道吗
如果我的帖子不清楚,请随意评论我的帖子所缺少的
编辑
我发现您可以通过如下视图设置queryset
:
form.fields['COURSE'].queryset = Educational_Requirement.objects.filter(fkey=jreq.fkey_id)
我的问题是,我使用inlineformset_factory
动态生成字段,如果这样做:
for form in myinlineform:
form.fields['COURSE'].queryset = Educational_Requirement.objects.filter(fkey=jreq.fkey_id)`
我提出的错误是:[u'ManagementForm data is missing or has been tampered with']
确保已在模板中包含内联表单集的管理表单:
在这里阅读更多信息:https://docs.djangoproject.com/en/dev/topics/forms/formsets/#understanding-the-managementform
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