Python 覆盖 Django Admin 的保存方法
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Override save method of Django Admin
提问by Elias MP
Well, I want to save any instance of a model without taking care about DDBB structure. So I decide to override def savein every model′s class. Kind of:
好吧，我想在不关心 DDBB 结构的情况下保存模型的任何实例。所以我决定def save在每个模型的类中覆盖。的种类：
def save(self, force_insert=False, force_update=False, using=None, update_fields=None):
if condition:
raise Exception("You can′t insert that element")
return super(name_class, self).save(self, force_insert=force_insert, force_update=force_update, using=using, update_fields=update_fields)
Well, with this I achieve to insert not raising an exception, but if the instance passes this check I want to insert in the DB whatever primary restriction exists...
好吧，通过这个我实现了插入而不引发异常，但是如果实例通过了这个检查，我想在数据库中插入任何存在的主要限制......
How can I get it?
我怎么才能得到它？
I suppose I must have to override the core code of save, but I checked it and I didn't find the part where I check the conditions for inserting in the DB.
Maybe, The problem is only in the validation of the form.
我想我必须覆盖 的核心代码save，但我检查了它，但没有找到检查插入数据库的条件的部分。也许，问题仅在于表单的验证。
How can I override a specific form in Django Admin? Specifically, that one where I add, Delete or Edit one class of the model.
如何覆盖 Django Admin 中的特定表单？具体来说，我添加、删除或编辑模型的一类。
回答by S?n Lam
You can overwrite save_modelof ModelAdmin.
您可以覆盖ModelAdmin的 save_model。
class MyAdminView(admin.ModelAdmin):
def save_model(self, request, obj, form, change):
super(MyAdminView, self).save_model(request, obj, form, change)
回答by Sayse
You shouldn't be doing any kind of validation at all in the save method, models have a cleanmethod so any validation you wish to do should be done in that instead
您根本不应该在 save 方法中进行任何类型的验证，模型有一个干净的方法，因此您希望进行的任何验证都应该在该方法中完成
For more information, see validating objects
有关更多信息，请参阅验证对象
