如何在循环Django中分配外键答案

【问题标题】：How to assign Foreign key inside loop Django如何在循环Django中分配外键
【发布时间】：2022-01-17 11:41:20
【问题描述】：

我想为循环中的每种颜色分配一个外键

colorArray=[{color:'red', product_id:5}, {color:'yellow', product_id:5}]

产品型号

class Product(models.Model):
    name = models.CharField(max_length=500)
    brand = models.CharField(max_length=500)
    description = models.CharField(max_length=500)

颜色模型

class Color(models.Model):
    colorName = models.CharField(max_length=500)
    product_id = models.ForeignKey(Product, on_delete=models.CASCADE)

观看次数

class AddColors(APIView):
    def post(self,request):
        for i in colorArray:
            s=AddColors()
            s.colorName=i['color']
            s.product_id=i[Product.objects.get(id=i['product_id'])]
            s.save()
        return Response({'colors Saved'})

【问题讨论】：

标签： python django django-models django-views

【解决方案1】：

在你看来你做错了：

class AddColors(APIView):
    def post(self,request):
        for i in colorArray:
            s = AddColors() # This is not correct
            s = Color() # Your model class is Color not AddColors
            s.colorName = i['color']

            # This is also incorrect: 
            s.product_id = i[Product.objects.get(id=i['product_id'])]

            # It should be like this:
            s.product_id = Product.objects.get(id=i['product_id'])

            s.save()
        return Response({'colors Saved'})

【讨论】：