Django模板queryset.example_set.all（）显示不同的主键

Question

class Medicine(models.Model):
    medicalrec = models.ForeignKey(MedicalRec,related_name='med_set')
    medicine = models.ForeignKey(Stock,related_name='stock_set')
    stockpk = models.IntegerField()

class MedicalRec(models.Model):
    patient = models.ForeignKey(Patient)
    date = models.DateField()
    disease = models.TextField()
    treatment = models.TextField()
    billed = models.BooleanField()

我正在尝试访问medrec或n的外键pk。但不是真正的PK，而是每次都显示1,2,3 ...... n.medicine.id给1,2,3 ...而不是真正的3,4,5是否有解决方法呢？

class MyException(Exception):
   def __init__(self, arg):
      pass

raise MyException