Django中的隐藏字段不在cleaning_data中

I have this form:

我有这样的形式：

class CollaboratorForm(forms.Form):
    user = forms.CharField(label="Username",max_length=100)
    canvas = forms.IntegerField(widget=forms.HiddenInput)
    ....
    def clean_user(self):
        user = self.cleaned_data['user']
        canvas = self.cleaned_data['canvas']

In the view I'm simply calling

在视图中我只是打电话

if form.is_valid():

I get the error:

我收到错误：

KeyError at /canvas/1/add-collaborator/
'canvas'

According to firebug the value is posting, it's just doesn't seem to be making it to my clean function. Am I doing it wrong?

根据萤火虫的价值是发布，它似乎似乎没有成为我的清洁功能。我做错了吗？

EDIT: Post data

编辑：发布数据

canvas  1
csrfmiddlewaretoken 2cb73be791b32ca9a41566082c804312
user    username

EDIT2: I would also be willing to take an answer that could tell me how to send the primary key to the clean_user function, where the primary key is the /1/ in the example url above. The function in the view that is called is:

EDIT2：我也愿意接受一个可以告诉我如何将主键发送到clean_user函数的答案，其中主键是上面示例url中的/ 1 /。调用的视图中的函数是：

def canvas_add_collaborator(request, pk):

So I would want to send the pk to the clean_user function which would solve my problem by not needing the hidden field.

所以我想把pk发送到clean_user函数，它可以通过不需要隐藏字段来解决我的问题。

3 个解决方案

#1

You need to change the method name to clean(), not clean_user(). 'canvas' is not in the cleaned_data if you are just validating the user field.

您需要将方法名称更改为clean（），而不是clean_user（）。如果您只是验证用户字段，'canvas'不在cleaning_data中。

#2

I solved my problem (probably not the best way, but works) using this:

我解决了我的问题（可能不是最好的方法，但有效）使用这个：

class CollaboratorForm(forms.Form):
    ....
    def __init__(self, *args, **kwargs):
        self.request = kwargs.pop('canvas', None)
        super(CollaboratorForm, self).__init__(*args, **kwargs)

Then in my view:

然后在我看来：

def canvas_add_collaborator(request, pk):
    ....
    form.canvas = pk

Maybe not the most elegant solution, but it works for now. Feedback welcome.

也许不是最优雅的解决方案，但它现在可以使用。欢迎反馈。

#3

I found that the order in the declaration of fields matters, so if you want to access cleaned_data['canvas'] in the clean_user method, you must declare canvas first in your fields. I have tested this in Model forms

我发现字段声明中的顺序很重要，因此如果要在clean_user方法中访问cleaning_data ['canvas']，则必须先在字段中声明画布。我已经在模型表格中测试了这个

#1