我有这样的模型:
class ItemGroup(models.Model):
group_id = models.AutoField(primary_key=True)
category = models.CharField(max_length=200, blank=True, null=True)
name = models.CharField(max_length=45, blank=True, null=True)
def __str__(self):
return self.name
现在我正在尝试建立一个工厂:
class ItemGroupFactory(DjangoModelFactory):
class Meta:
model = ItemGroup
category = FuzzyChoice(['category1', 'category2'])
name = Sequence(lambda n: "%s%d" % (SelfAttribute("category"), n))
问题是,这不起作用,而测试我得到:
django.db.utils.DatabaseError: Data too long for column 'name' at row 1
那么如何在序列中使用SelfAttribute? 我正在使用:
Django 1.8.14
djangorestframework 3.4.6
fake-factory 0.5.3
mysql-connector-python 2.1.3
factory-boy 2.7.0
答案 0 :(得分:1)
问题是这是一种不正确的方法。对于一项任务,即根据我已经使用LazyAttributeSequence
的属性创建序列。像这样:
class ItemGroupFactory(DjangoModelFactory):
class Meta:
model = ItemGroup
category = FuzzyChoice(['gadżety', 'jedzenie'])
name = LazyAttributeSequence(lambda o,n: "%s%d" % (o.category, n))