使用 django CreateView 更新 onetoone
update onetoone using django CreateView
我正在使用 CreateView 来更新我的 Person 模型。该模型与 Adress 具有一对一关系。尝试更新我的 Person 模型时,我无法同时更新 Adress 模型。它只是给了我现有地址的列表,但无法添加新地址。我可以看到这在管理员中是可能的。在 CreateView 中可以这样做吗?
model.py:
class Person(Model):
fname=CharField(default="missing",max_length=100)
lname=CharField(default="missing",max_length=100)
mobil=PhoneField(default='9999999999')
mail=EmailField(default='contact@gmail.com')
padress=OneToOneField(Adress,on_delete=CASCADE,primary_key=True)
def __str__(self):
return self.fname
class Meta:
ordering=('fname','lname')
class Adress(Model):
street=CharField(default='missing',max_length=100)
snumb=CharField(default='missing',max_length=15)
town=CharField(default='missing',max_length=100)
postn=CharField(default='99999',max_length=5,validators=[postnvali])
def __str__(self):
return self.town
class Meta:
ordering=('street','town')
view.py
class PCreate(CreateView):
template_name='kammem/create.html'
model=Person
fields=['fname','lname','mobil','mail','padress']
success_url=reverse_lazy('forl')
url.py
path('pcreate/',PCreate.as_view(),name='pcreate'),
template:
{% extends 'edit2.html' %}
{% block add %}
<form method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Save">
</form>
{% endblock %}
any suggestions?
ok, here is an update. I can save both instances and also create the relation. But I still can't exit the function, please look at the following:
class PCreate2(CreateView):
form_class=PersonForm
template_name='kabmmem/create.html'
success_url=reverse_lazy('forl')
def form_valid(self,form):
# create address and person
street = form.cleaned_data['street']
snumb = form.cleaned_data['snumb']
town = form.cleaned_data['town']
postn = form.cleaned_data['postn']
fname = form.cleaned_data['fname']
lname = form.cleaned_data['lname']
mobil = form.cleaned_data['mobil']
mail = form.cleaned_data['mail']
a=Adress.objects.create(street=street,snumb=snumb,town=town,postn=postn)
pe=Person.objects.create(fname=fname,lname=lname,mobil=mobil,mail=mail,padress=a)
return HttpResponseRedirect(self.get_success_url())
return 语句给出:AttributeError: 'NoneType' object has no attribute 'dict'
所以,我还是迷路了...
return 声明
您可以设置一个 PersonForm
ModelForm 并在其中定义地址字段。将此表单分配给视图的 form_class
属性将确保地址字段可用于在页面上进行编辑。
验证表单后,您必须手动创建地址对象并将其分配给表单的 padress
字段。您可以在视图的 form_valid
方法中执行此操作。
forms.py
from django import forms
class PersonForm(forms.ModelForm):
street=forms.CharField(max_length=100)
snumb=forms.CharField(max_length=15)
town=forms.CharField(max_length=100)
postn = forms.CharField(max_length=5, validators=[postnvali])
class Meta:
model = Person
exclude = ['padress']
views.py
class PCreate(CreateView):
form_class=PersonForm
template_name='kammem/create.html'
success_url=reverse_lazy('forl')
def form_valid(self, form):
# create address
street = form.cleaned_data['street']
snumb = form.cleaned_data['snumb']
town = form.cleaned_data['town']
postn = form.cleaned_data['postn']
address = Address.objects.create(street=street, snumb=snumb, town=town, postn=postn)
# get the response
response = super().form_valid(form)
# assign the address to the person object
self.object.padress = address
self.object.save()
# return the response
return response
好的,经过大量研究终于找到了解决方案。我只是在 CreateView 函数中设置了两个表,return 成功了 url。这是一个丑陋的解决方案。我有谁知道更好的解决方案,请告诉我。更新外部字段是一种很常见的模式,但是涉及到这个的文档我真的很少,
views.py:
class PCreate2(CreateView):
form_class=PersonForm
template_name='kammem/create.html'
def form_valid(self,form):
# create address
street = form.cleaned_data['street']
snumb = form.cleaned_data['snumb']
town = form.cleaned_data['town']
postn = form.cleaned_data['postn']
fname = form.cleaned_data['fname']
lname = form.cleaned_data['lname']
mobil = form.cleaned_data['mobil']
mail = form.cleaned_data['mail']
a=Adress.objects.create(street=street,snumb=snumb,town=town,postn=postn)
pe=Person.objects.create(fname=fname,lname=lname,mobil=mobil,mail=mail,padress=a)
return HttpResponseRedirect(reverse_lazy('personer'))
我正在使用 CreateView 来更新我的 Person 模型。该模型与 Adress 具有一对一关系。尝试更新我的 Person 模型时,我无法同时更新 Adress 模型。它只是给了我现有地址的列表,但无法添加新地址。我可以看到这在管理员中是可能的。在 CreateView 中可以这样做吗?
model.py:
class Person(Model):
fname=CharField(default="missing",max_length=100)
lname=CharField(default="missing",max_length=100)
mobil=PhoneField(default='9999999999')
mail=EmailField(default='contact@gmail.com')
padress=OneToOneField(Adress,on_delete=CASCADE,primary_key=True)
def __str__(self):
return self.fname
class Meta:
ordering=('fname','lname')
class Adress(Model):
street=CharField(default='missing',max_length=100)
snumb=CharField(default='missing',max_length=15)
town=CharField(default='missing',max_length=100)
postn=CharField(default='99999',max_length=5,validators=[postnvali])
def __str__(self):
return self.town
class Meta:
ordering=('street','town')
view.py
class PCreate(CreateView):
template_name='kammem/create.html'
model=Person
fields=['fname','lname','mobil','mail','padress']
success_url=reverse_lazy('forl')
url.py
path('pcreate/',PCreate.as_view(),name='pcreate'),
template:
{% extends 'edit2.html' %}
{% block add %}
<form method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Save">
</form>
{% endblock %}
any suggestions?
ok, here is an update. I can save both instances and also create the relation. But I still can't exit the function, please look at the following:
class PCreate2(CreateView):
form_class=PersonForm
template_name='kabmmem/create.html'
success_url=reverse_lazy('forl')
def form_valid(self,form):
# create address and person
street = form.cleaned_data['street']
snumb = form.cleaned_data['snumb']
town = form.cleaned_data['town']
postn = form.cleaned_data['postn']
fname = form.cleaned_data['fname']
lname = form.cleaned_data['lname']
mobil = form.cleaned_data['mobil']
mail = form.cleaned_data['mail']
a=Adress.objects.create(street=street,snumb=snumb,town=town,postn=postn)
pe=Person.objects.create(fname=fname,lname=lname,mobil=mobil,mail=mail,padress=a)
return HttpResponseRedirect(self.get_success_url())
return 语句给出:AttributeError: 'NoneType' object has no attribute 'dict'
所以,我还是迷路了...
return 声明
您可以设置一个 PersonForm
ModelForm 并在其中定义地址字段。将此表单分配给视图的 form_class
属性将确保地址字段可用于在页面上进行编辑。
验证表单后,您必须手动创建地址对象并将其分配给表单的 padress
字段。您可以在视图的 form_valid
方法中执行此操作。
forms.py
from django import forms
class PersonForm(forms.ModelForm):
street=forms.CharField(max_length=100)
snumb=forms.CharField(max_length=15)
town=forms.CharField(max_length=100)
postn = forms.CharField(max_length=5, validators=[postnvali])
class Meta:
model = Person
exclude = ['padress']
views.py
class PCreate(CreateView):
form_class=PersonForm
template_name='kammem/create.html'
success_url=reverse_lazy('forl')
def form_valid(self, form):
# create address
street = form.cleaned_data['street']
snumb = form.cleaned_data['snumb']
town = form.cleaned_data['town']
postn = form.cleaned_data['postn']
address = Address.objects.create(street=street, snumb=snumb, town=town, postn=postn)
# get the response
response = super().form_valid(form)
# assign the address to the person object
self.object.padress = address
self.object.save()
# return the response
return response
好的,经过大量研究终于找到了解决方案。我只是在 CreateView 函数中设置了两个表,return 成功了 url。这是一个丑陋的解决方案。我有谁知道更好的解决方案,请告诉我。更新外部字段是一种很常见的模式,但是涉及到这个的文档我真的很少,
views.py:
class PCreate2(CreateView):
form_class=PersonForm
template_name='kammem/create.html'
def form_valid(self,form):
# create address
street = form.cleaned_data['street']
snumb = form.cleaned_data['snumb']
town = form.cleaned_data['town']
postn = form.cleaned_data['postn']
fname = form.cleaned_data['fname']
lname = form.cleaned_data['lname']
mobil = form.cleaned_data['mobil']
mail = form.cleaned_data['mail']
a=Adress.objects.create(street=street,snumb=snumb,town=town,postn=postn)
pe=Person.objects.create(fname=fname,lname=lname,mobil=mobil,mail=mail,padress=a)
return HttpResponseRedirect(reverse_lazy('personer'))