formsets.py 文件源码

def __init__(self, *args, **kwargs):
        self.base_fields[TOTAL_FORM_COUNT] = IntegerField(widget=HiddenInput)
        self.base_fields[INITIAL_FORM_COUNT] = IntegerField(widget=HiddenInput)
        # MAX_NUM_FORM_COUNT is output with the rest of the management form,
        # but only for the convenience of client-side code. The POST
        # value of MAX_NUM_FORM_COUNT returned from the client is not checked.
        self.base_fields[MAX_NUM_FORM_COUNT] = IntegerField(required=False, widget=HiddenInput)
        super(ManagementForm, self).__init__(*args, **kwargs)