有一个简单的解决方案称为unique_together，它可以完全满足你的要求。
例如：
class MyModel(models.Model): field1 = models.CharField(max_length=50) field2 = models.CharField(max_length=50) class meta: unique_together = ('field1', 'field2',)在你的情况下：
class Volume(models.Model): id = models.AutoField(primary_key=True) journal_id = models.ForeignKey(Journals, db_column='jid', null=True, verbose_name = "Journal") volume_number = models.CharField('Volume Number', max_length=100) comments = models.TextField('Comments', max_length=4000, blank=True) class meta: unique_together = ('journal_id', 'volume_number',)
