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https://github.com/django/django.git
synced 2025-10-24 06:06:09 +00:00
@@ -17,18 +17,21 @@ from django.utils.encoding import python_2_unicode_compatible
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# An example of a custom manager called "objects".
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class PersonManager(models.Manager):
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def get_fun_people(self):
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return self.filter(fun=True)
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# An example of a custom manager that sets get_queryset().
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class PublishedBookManager(models.Manager):
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def get_queryset(self):
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return super(PublishedBookManager, self).get_queryset().filter(is_published=True)
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# An example of a custom queryset that copies its methods onto the manager.
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class CustomQuerySet(models.QuerySet):
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def filter(self, *args, **kwargs):
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queryset = super(CustomQuerySet, self).filter(fun=True)
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@@ -49,6 +52,7 @@ class CustomQuerySet(models.QuerySet):
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return self.all()
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_optin_private_method.queryset_only = False
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class BaseCustomManager(models.Manager):
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def __init__(self, arg):
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super(BaseCustomManager, self).__init__()
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@@ -64,14 +68,17 @@ class BaseCustomManager(models.Manager):
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CustomManager = BaseCustomManager.from_queryset(CustomQuerySet)
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class FunPeopleManager(models.Manager):
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def get_queryset(self):
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return super(FunPeopleManager, self).get_queryset().filter(fun=True)
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class BoringPeopleManager(models.Manager):
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def get_queryset(self):
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return super(BoringPeopleManager, self).get_queryset().filter(fun=False)
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@python_2_unicode_compatible
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class Person(models.Model):
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first_name = models.CharField(max_length=30)
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@@ -93,6 +100,7 @@ class Person(models.Model):
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def __str__(self):
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return "%s %s" % (self.first_name, self.last_name)
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@python_2_unicode_compatible
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class Book(models.Model):
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title = models.CharField(max_length=50)
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@@ -109,10 +117,12 @@ class Book(models.Model):
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# An example of providing multiple custom managers.
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class FastCarManager(models.Manager):
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def get_queryset(self):
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return super(FastCarManager, self).get_queryset().filter(top_speed__gt=150)
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@python_2_unicode_compatible
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class Car(models.Model):
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name = models.CharField(max_length=10)
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