将参数传递给django中的动态表单

Question

我在表格中有动态表格.当我实例化表单时,如何从我的视图中传递参数？

就像是:

form = DynamicForm("some string argument I'm passing to my form")

这是我的形式:

class DynamicForm(Form):
def __init__(self, *args, **kwargs):
    super(DynamicForm, self).__init__(*args, **kwargs)
    for item in range(5):
        self.fields['test_field_%d' % item] = CharField(max_length=255)

Answer 1

将其添加为关键字参数,假设它名为my_arg.pop()在调用之前确保关键字arg super(),因为父类的init方法不接受额外的关键字参数.

class DynamicForm(Form):
  def __init__(self, *args, **kwargs):
    my_arg = kwargs.pop('my_arg')
    super(DynamicForm, self).__init__(*args, **kwargs)
    for item in range(5):
        self.fields['test_field_%d' % item] = CharField(max_length=255)

当你创建表单时,它是这样的:

form = DynamicForm(..., my_arg='value')