Making a submit button form field

问题

So there exists a snippet here:

I was going tor reuse this, but when I declare this in my forms.py, and I render the html..

submit_button = SubmitButtonField()

value is not supplied (it's escaped to string None), while name is default to submit_button, probably because of the forms.Widget constructor.

How can I supply the name and the value? I tried to write an init method for the widget...

def __init__(self, name, value, label, attrs):        
    print '%s, %s, %s, %s' %(name, value, label, attrs)
    self.name, self.value,self.label = name, value, label
    self.attrs = attrs

But this doesn't quite make sense if the field is always (supposedly) default to use the widget SubmitButtonWidget... instead I should supply these values in the field init method. But it doesn't allow me to do.

How should I rewrite this snippet so it can accept my supplied values?

回答1:

As written in the comment at the very top of the snippet, the usage is

submit_button = SubmitButtonField(label="", initial=u"Your submit button text")

Your missing value comes from the initial keyword argument. The name is the name of the form field.

来源：https://stackoverflow.com/questions/10868873/making-a-submit-button-form-field