在基于Django类的视图中,从上下文数据设置初始表单域值 [英] Setting initial formfield value from context data in Django class based view
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问题描述
如何拉来自context或get()的关键字没有将字段硬编码到模板中?
class ActivateView(FormView):
template_name ='activate.html'
form_class = ActivationForm
#initial = {'key':'123123123'}< - 这是有用的,但是没用
success_url = 'profile'
def get_context_data(self,** kwargs):
if'activation_key'in self.kwargs:
context = super(ActivateView,self).get_context_data(* * kwargs)
上下文['activation_key'] = self.kwargs ['activation_key']
这是我期望为我设置的值,但它不' t似乎工作
上面的上下文工作正常,但是我将不得不手动构建
表单中的模板非常unDjango。
self.initial ['key'] = self.kwargs ['activation_key']
return context
else:
return super(ActivateView,self ).get_context_data(** kwargs)
解决方案
get_initial
提供动态初始参数:
类ActivationView(FormView):
#...
def get_initial(self):
return {'key':self.kwargs ['activation_key']}
I've got an activation url that carries the activation key ( /user/activate/123123123 ). That works without any issue. get_context_data can plop it into the template fine. What I want to do is have it as an initial value for the key field so the user only needs to enter username and password as created at registration.
How can I pull the key from context or get() without hardcoding the field into the template?
class ActivateView(FormView):
template_name = 'activate.html'
form_class = ActivationForm
#initial={'key': '123123123'} <-- this works, but is useless
success_url = 'profile'
def get_context_data(self, **kwargs):
if 'activation_key' in self.kwargs:
context = super(ActivateView, self).get_context_data(**kwargs)
context['activation_key'] = self.kwargs['activation_key']
"""
This is what I would expect to set the value for me. But it doesn't seem to work.
The above context works fine, but then I would have to manually build the
form in the template which is very unDjango.
"""
self.initial['key'] = self.kwargs['activation_key']
return context
else:
return super(ActivateView, self).get_context_data(**kwargs)
解决方案
You can override get_initial
to provide dynamic initial arguments:
class ActivationView(FormView):
# ...
def get_initial(self):
return {'key': self.kwargs['activation_key']}
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