Python 如何删除Django模型中的记录？
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How to delete a record in Django models?
提问by user426795
I want to delete a particular record. Such as
我想删除一个特定的记录。如
delete from table_name where id = 1;
How can I do this in a django model?
我怎样才能做到这一点django model？
回答by Wolph
There are a couple of ways:
有几种方法：
To delete it directly:
直接删除：
SomeModel.objects.filter(id=id).delete()
To delete it from an instance:
要从实例中删除它：
instance = SomeModel.objects.get(id=id)
instance.delete()
回答by VicX
回答by Milad Khodabandehloo
MyModel.objects.get(pk=1).delete()
this will raise exception if the object with specified primary key doesn't exist because at first it tries to retrieve the specified object.
如果具有指定主键的对象不存在，这将引发异常，因为它首先尝试检索指定的对象。
MyModel.objects.filter(pk=1).delete()
this wont raise exception if the object with specified primary key doesn't exist and it directly produces the query
如果具有指定主键的对象不存在并且直接生成查询，则不会引发异常
DELETE FROM my_models where id=1
回答by lilhamad
If you want to delete one item
如果要删除一项
wishlist = Wishlist.objects.get(id = 20)
wishlist.delete()
If you want to delete all items in Wishlist for example
例如，如果您想删除愿望清单中的所有项目
Wishlist.objects.all().delete()
回答by siful islam
if you want to delete one instance then write the code
如果要删除一个实例，则编写代码
delet= Account.objects.get(id= 5)
delet.delete()
if you want to delete all instance then write the code
如果要删除所有实例，请编写代码
delet= Account.objects.all()
delete.delete()
