本文整理汇总了Python中django.db.migrations.AlterModelManagers方法的典型用法代码示例。如果您正苦于以下问题：Python migrations.AlterModelManagers方法的具体用法？Python migrations.AlterModelManagers怎么用？Python migrations.AlterModelManagers使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类django.db.migrations的用法示例。
在下文中一共展示了migrations.AlterModelManagers方法的2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_alter_model_managers_emptying
# 需要导入模块: from django.db import migrations [as 别名]
# 或者: from django.db.migrations import AlterModelManagers [as 别名]
def test_alter_model_managers_emptying(self):
"""
The managers on a model are set.
"""
project_state = self.set_up_test_model("test_almomae", manager_model=True)
# Test the state alteration
operation = migrations.AlterModelManagers("Food", managers=[])
self.assertEqual(operation.describe(), "Change managers on Food")
self.assertIn(("test_almomae", "food"), project_state.models)
managers = project_state.models["test_almomae", "food"].managers
self.assertEqual(managers[0][0], "food_qs")
self.assertIsInstance(managers[0][1], models.Manager)
self.assertEqual(managers[1][0], "food_mgr")
self.assertIsInstance(managers[1][1], FoodManager)
self.assertEqual(managers[1][1].args, ("a", "b", 1, 2))
self.assertEqual(managers[2][0], "food_mgr_kwargs")
self.assertIsInstance(managers[2][1], FoodManager)
self.assertEqual(managers[2][1].args, ("x", "y", 3, 4))
new_state = project_state.clone()
operation.state_forwards("test_almomae", new_state)
managers = new_state.models["test_almomae", "food"].managers
self.assertEqual(managers, []) 示例2: test_alter_model_managers
# 需要导入模块: from django.db import migrations [as 别名]
# 或者: from django.db.migrations import AlterModelManagers [as 别名]
def test_alter_model_managers(self):
"""
The managers on a model are set.
"""
project_state = self.set_up_test_model("test_almoma")
# Test the state alteration
operation = migrations.AlterModelManagers(
"Pony",
managers=[
("food_qs", FoodQuerySet.as_manager()),
("food_mgr", FoodManager("a", "b")),
("food_mgr_kwargs", FoodManager("x", "y", 3, 4)),
]
)
self.assertEqual(operation.describe(), "Change managers on Pony")
managers = project_state.models["test_almoma", "pony"].managers
self.assertEqual(managers, [])
new_state = project_state.clone()
operation.state_forwards("test_almoma", new_state)
self.assertIn(("test_almoma", "pony"), new_state.models)
managers = new_state.models["test_almoma", "pony"].managers
self.assertEqual(managers[0][0], "food_qs")
self.assertIsInstance(managers[0][1], models.Manager)
self.assertEqual(managers[1][0], "food_mgr")
self.assertIsInstance(managers[1][1], FoodManager)
self.assertEqual(managers[1][1].args, ("a", "b", 1, 2))
self.assertEqual(managers[2][0], "food_mgr_kwargs")
self.assertIsInstance(managers[2][1], FoodManager)
self.assertEqual(managers[2][1].args, ("x", "y", 3, 4))
rendered_state = new_state.apps
model = rendered_state.get_model('test_almoma', 'pony')
self.assertIsInstance(model.food_qs, models.Manager)
self.assertIsInstance(model.food_mgr, FoodManager)
self.assertIsInstance(model.food_mgr_kwargs, FoodManager)