我在Django中有4个模型:产品,订单,lines_Orders和发票。基于这些模型,我想创建一个表格,该表格将在给定订单编号的情况下生成发票。但是我不知道这些视图如何以及如何将这些模型组合成一种形式。
class Product(models.Model):
# productId=models.IntegerField(auto_created=True)
customerId=models.ForeignKey(Customers, on_delete=models.CASCADE)
productNumber=models.CharField(max_length=15, unique=True)
productDescription=models.CharField(max_length=25)
unitPrice = models.FloatField()
storageQuantity=models.FloatField()
class Orders(models.Model):
orderID=models.AutoField(primary_key=True)
customerID = models.ForeignKey(Customers, on_delete=models.CASCADE)
oderDate = models.DateTimeField()
class Order_lines(models.Model):
oderID = models.ForeignKey(Orders, on_delete=models.CASCADE)
productNumber=models.ForeignKey(Product, on_delete=models.CASCADE)
quantity = models.FloatField(default=0.00)
class Invoice(models.Model):
dateInvoice=models.DateField()
receiveDate=models.DateField()
OrderNumber=models.ForeignKey(Orders, on_delete=models.CASCADE)
请协助