我正在创建两个模型:原料配方和配方。这是每一项的代码:
原料配方:
from django.db import models
class FeedstockFormulas(models.Model):
ratio = models.FloatField()
feedstock = models.OneToOneField("dashboard.Feedstock", on_delete=models.CASCADE, default="0")
formulas = models.ForeignKey("dashboard.Formulas", on_delete=models.CASCADE, default="")
公式:
from django.db import models
class Formulas(models.Model):
name = models.CharField(max_length=100)
cost = models.FloatField()
weight = models.FloatField()
如何获取配方中的所有原料配方?
qq_笑_17
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