我已经根据下面的模型构造了一个表格
class Order(models.Model):
STATUS = (
('Pending', 'Pending'),
('Out for delivery', 'Out for delivery'),
('Delivered', 'Delivered'),
)
customer = models.ForeignKey(Customer, null=True, on_delete = models.SET_NULL)
product = models.ForeignKey(Product, null=True, on_delete = models.SET_NULL)
date_created = models.DateTimeField(auto_now_add=True, null=True)
status = models.CharField(max_length=200, null=True, choices=STATUS)
note = models.CharField(max_length=1000, null=True)
delivery_address1 = models.CharField(max_length=1000, null=True)
delivery_address2 = models.CharField(max_length=1000, null=True, blank=True, default='')
delivery_city = models.CharField(max_length=1000, null=True)
delivery_county = models.CharField(max_length=1000, null=True)
delivery_post_code = models.CharField(max_length=1000, null=True)
delivery_country = CountryField()
def __str__(self):
return self.product.name
外键来自以下型号
class UserManager(BaseUserManager):
def create_user(self, email, password=None,is_active=True, is_staff=False, is_admin=False):
if not email:
raise ValueError("Users must have email address")
user_obj = self.model(email = self.normalize_email(email))
if not password:
raise ValueError("Users must have a password")
user_obj.set_password(password)
user_obj.staff = is_staff
user_obj.admin = is_admin
user_obj.active = is_active
user_obj.save(using=self._db)
return user_obj
def create_staffuser(self,email,password=None):
user = self.create_user(email, password=password,is_staff=True)
return user
def create_superuser(self, email, password=None):
user = self.create_user(email, password=password, is_staff=True, is_admin=True)
return user
class User(AbstractBaseUser):
email = models.EmailField(max_length=255,unique=True)
active = models.BooleanField(default=True)
staff = models.BooleanField(default=False)
admin = models.BooleanField(default=False)
USERNAME_FIELD = 'email'
# email and password are required by default
REQUIRED_FIELDS = []
objects = UserManager()
def __str__(self):
return self.email
def get_full_name(self):
return self.email
def get_short_name(self):
return self.email
def has_perm(self, perm, obj=None):
return True
def has_module_perms(self, app_label):
return True
@property
def is_staff(self):
return self.staff
@property
def is_admin(self):
return self.admin
@property
def is_active(self):
return self.active
class Customer(models.Model):
GENDER = (
('Male', 'Male'),
('Female', 'Female'),
)
TITLE = (
('Mr', 'Mr'),
('Mrs', 'Mrs'),
('Miss', 'Miss'),
('Ms', 'Ms'),
('Dr', 'Dr'),
('Sir', 'Sir'),
('Madam', 'Madam'),
)
user = models.OneToOneField(User,on_delete=models.CASCADE)
title = models.CharField(max_length=200, null=True, choices=TITLE)
first_name = models.CharField(max_length=200, null=True)
middle_name = models.CharField(max_length=200, blank=True,default='')
last_name = models.CharField(max_length=200, null=True)
phone = models.CharField(max_length=200, null=True)
country = CountryField()
birth_year = models.CharField(max_length=4, null=True)
gender = models.CharField(max_length=200, null=True, choices=GENDER)
date_created = models.DateTimeField(auto_now=True, null=True)
profile_pic = models.ImageField(null=True, blank=True)
last_purchase = models.DateTimeField(blank=True, null=True)
address1 = models.CharField(max_length=1000,null=True)
address2 = models.CharField(max_length=1000,null=True, blank=True, default='')
city = models.CharField(max_length=1000, null=True)
county = models.CharField(max_length=1000, null=True)
post_code = models.CharField(max_length=1000, null=True)
customer_uuid = models.UUIDField(default=uuid.uuid4)
def __str__(self):
return self.user.email
class Product(models.Model):
CATEGORY = (
('Sports', 'Sports'),
('Fashion', 'Fashion'),
('Toys', 'Toys'),
('Electronics', 'Electronics'),
('Kitchen', 'Kitchen'),
('Jewellery', 'Jewellery'),
)
name = models.CharField(max_length=200, null=True)
category = models.CharField(max_length=200, null=True, choices=CATEGORY)
description = models.CharField(max_length=200, null=True, blank=True)
r_price = models.FloatField(null=True)
d_price = models.FloatField(null=True, blank=True,default='')
start_date = models.DateTimeField(null=True, blank=True,default='')
end_date = models.DateField(null=True, blank=True,default='')
tags = models.ManyToManyField(Tag)
stock = models.CharField(max_length=200, null=True)
min_stock = models.CharField(max_length=200, null=True)
is_active = models.BooleanField(default=False)
product_sku = models.CharField(max_length=200, null=True)
def __str__(self):
return self.product_sku
我希望基于product_sku字段选择我的产品外键实例，并因此自动填充（在模板中）产品模型中的现有实例字段，例如类别，名称，描述和r_price。
对于我的客户外键，也可以搜索并选择customer_uuid或名称（下拉列表）。客户字段的现有实例将是只读的，并在模板上自动填充
请参阅下面的我的表格
class CreateOrderForm(forms.ModelForm):
class Meta:
model = Order
fields = '__all__'
也可以在下面查看我的views.py以创建和更新实例
@login_required
def newOrder(request):
form = CreateOrderForm()
if request.method == 'POST':
form = CreateOrderForm(request.POST or None)
if form.is_valid():
form.save()
return redirect('/')
return render(request, 'accounts/new_order.html', {'form':form})
@login_required
def editOrder(request,pk):
order = Order.objects.get(id=pk)
form = CreateOrderForm(instance=order)
if request.method == "POST":
form = CreateOrderForm(request.POST,instance=order)
if form.is_valid():
form.save()
return redirect('/')
return render(request, 'accounts/edit_order.html', {'form':form})
要实现我需要做的事情需要采取的第一步？