本文整理汇总了Python中django.db.models.manager.BaseManager类的典型用法代码示例。如果您正苦于以下问题：Python BaseManager类的具体用法？Python BaseManager怎么用？Python BaseManager使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了BaseManager类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_manager_methods
def test_manager_methods(self):
"""
This test ensures that the correct set of methods from `QuerySet`
are copied onto `Manager`.
It's particularly useful to prevent accidentally leaking new methods
into `Manager`. New `QuerySet` methods that should also be copied onto
`Manager` will need to be added to `ManagerTest.QUERYSET_PROXY_METHODS`.
"""
self.assertEqual(
sorted(BaseManager._get_queryset_methods(QuerySet).keys()), sorted(self.QUERYSET_PROXY_METHODS)
)示例2: __str__
name = models.CharField(max_length=100)
slug = models.SlugField()
class Meta:
ordering = ['name']
def __str__(self):
return self.name
class DoesNotExistQuerySet(QuerySet):
def get(self, *args, **kwargs):
raise Author.DoesNotExist
DoesNotExistBookManager = BaseManager.from_queryset(DoesNotExistQuerySet)
class Book(models.Model):
name = models.CharField(max_length=300)
slug = models.SlugField()
pages = models.IntegerField()
authors = models.ManyToManyField(Author)
pubdate = models.DateField()
objects = models.Manager()
does_not_exist = DoesNotExistBookManager()
class Meta:
ordering = ['-pubdate']
示例3: get_manager
def get_manager(cls):
return type('DictManager', (BaseManager.from_queryset(cls)), {})