如何从admin ModelForm清理方法访问request.user？ [英] How to access request.user from an admin ModelForm clean method?

问题描述

  class MyAdminForm（forms.ModelForm）：我在管理ModelForm上做了一些干净的东西
 def clean（self）：
＃有些东西发生... 
 request.user.message_set.create（message =有些东西发生了）
 
 class MyAdmin（admin.ModelAdmin）：
 form = MyAdminForm 
  

除了threadlocals之外 - 我是否要访问request.user设置消息？我不能将其传递给表单构造函数，因为不会从我的代码调用。

解决方案

您不能在窗体上执行此操作，而不将用户传入窗体构造函数。相反，您可以使用给定请求对象的 ModelAdmin.save_model 函数。

save_model方法给出
HttpRequest，一个模型实例，一个
ModelForm实例和一个布尔值
，基于是添加还是
更改对象。在这里，您可以执行
任何预保存或后保存操作。

http://docs.djangoproject.com/en/dev/ref/contrib /admin/#django.contrib.admin.ModelAdmin.save_model

编辑：
因为你想把逻辑/消息放在干净的函数可以执行以下操作：

  class MyAdminForm（forms.ModelForm）：
 user_messages = [] 
 def clean（self）：
＃有些东西发生... 
 user_messages.append（有些东西发生了）
 
 class MyAdmin（admin.ModelAdmin）：
 form = MyAdminForm 
 def save_model（self，request，obj，form，change）：
 for form.user_messages中的消息：
 request.user.message_set.create（message = message） 
  

很晚编辑：

user.message_set 被设置为在Django 1.4中被弃用。您应该使用 ModelAdmin.message_user 。 https：//docs.djangoproject .com / en / 1.3 / ref / contrib / admin /＃django.contrib.admin.ModelAdmin.message_user

I'm doing some stuff on 'clean' on an admin ModelForm:

class MyAdminForm(forms.ModelForm):
    def clean(self):
        # Some stuff happens...
        request.user.message_set.create(message="Some stuff happened")

class MyAdmin(admin.ModelAdmin):
    form = MyAdminForm

Other than the threadlocals hack - how do I access request.user to set a message? I can't pass it to the form constructor because doesn't get called from my code.

解决方案

You can't do it on the form without passing the user into the form constructor. Instead you can use the ModelAdmin.save_model function which is given the request object.

The save_model method is given the HttpRequest, a model instance, a ModelForm instance and a boolean value based on whether it is adding or changing the object. Here you can do any pre- or post-save operations.

http://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_model

Edit: Since you want to put the logic/messages in the clean function you could do something like:

class MyAdminForm(forms.ModelForm):
    user_messages = []
    def clean(self):
        # Some stuff happens...
        user_messages.append("Some stuff happened")

class MyAdmin(admin.ModelAdmin):
    form = MyAdminForm
    def save_model(self, request, obj, form, change):
        for message in form.user_messages:
            request.user.message_set.create(message=message)

Very late edit:

user.message_set is set to be deprecated in Django 1.4. You should instead use ModelAdmin.message_user. https://docs.djangoproject.com/en/1.3/ref/contrib/admin/#django.contrib.admin.ModelAdmin.message_user

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