将参数传递给 Django 中的动态表单 [英] passing arguments to a dynamic form in django
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问题描述
我在表单中有一个动态表单.实例化表单时,如何从我的视图中传递参数?
I have a Dynamic Form in forms. How can I pass an argument from my view when I instantiate my form?
类似于:
form = DynamicForm("some string argument I'm passing to my form")
这是我的表格:
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)
推荐答案
将其添加为关键字参数,假设它名为 my_arg.确保在调用super()
之前pop()
关键字arg,因为父类的init方法不接受额外的关键字参数.
Add it as keyword argument, say it's called my_arg. Make sure to pop()
the keyword arg before calling super()
, because the parent class's init method doesn't accept extra keyword arguments.
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:
And when you create form it's like this:
form = DynamicForm(..., my_arg='value')
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