0
我有一個用於創建和編輯模型實例的表單。但是，在編輯模型實例時，表單仍嘗試創建新記錄並失敗，因爲唯一的一起字段已存在。初始化表單時，我已經傳遞了該實例。即使實例通過，Django表單也不更新現有記錄
views.py
def organization_course_detail(request, org_id):
'''
Get all courses that are associated with an organization
'''
template_name = 'users/organization-course-list.html'
organization = models.Organization.objects.get(id=org_id)
if request.method == 'POST':
print organization.id
form = forms.CreateOrganizationForm(request.POST, instance=organization)
if form.is_valid():
print 'form is valid'
org = form.save(commit=False)
org.save()
return HttpResponseRedirect(
reverse('users:org-course-list',
kwargs={'org_id': org_id}))
else:
form = forms.CreateOrganizationForm(instance=organization)
forms.py
class CreateOrganizationForm(forms.ModelForm):
'''
A form used to create a new organization. At the same time,
we create a new course that is a clone of "Chalk Talk SAT"
and associate the course with the organization and any student
that signs up from that organization
'''
class Meta:
model = models.Organization
fields = ['name', 'country', 'acronym',]
models.py
class Organization(models.Model):
'''
This is a model where we will have every institution
(test prep centers, governments, schools) that we do workshops
at or create school accounts for
'''
name = models.CharField(max_length=2000)
country = CountryField(null=True, blank='(Select Country)')
date = models.DateTimeField(default=timezone.now)
acronym = models.CharField(max_length=7, help_text="(Up to 7 characters)")
expiration_date = models.DateTimeField(default=timezone.now)
def get_org_admins(self):
return self.admin_for_organizations.all()
class Meta:
unique_together = (
('name', 'country')
)
def __str__(self):
return self.name