[英]How to get data from form using POST in django (Horizon Dashboard)?
我是使用django進行開發的新手,並且正在嘗試修改Openstack Horizon Dashboard應用程序(基於django應用程序)。
我實現了一個功能,現在,我正在嘗試做一個表單,但是請求有一些問題。
在我的代碼中,我正在使用POST方法
首先,我想在同一視圖中顯示表單上的內容,而我正在這樣做。
from django import http
from django.utils.translation import ugettext_lazy as _
from django.views.generic import TemplateView
from django import forms
class TesteForm(forms.Form):
name = forms.CharField()
class IndexView(TemplateView):
template_name = 'visualizations/validar/index.html'
def get_context_data(request):
if request.POST:
form = TesteForm(request.POST)
if form.is_valid():
instance = form.save()
else :
form = TesteForm()
return {'form':form}
class IndexView2(TemplateView):
template_name = 'visualizations/validar/index.html'
def get_context_data(request):
text = None
if request.POST:
form = TesteForm(request.POST)
if form.is_valid():
text = form.cleaned_data['name']
else:
form = TesteForm()
return {'text':text,'form':form}
我的urls.py文件是這樣的
from django.conf.urls.defaults import patterns, url
from .views import IndexView
from .views import IndexView2
urlpatterns = patterns('',
url(r'^$',IndexView.as_view(), name='index'),
url(r'teste/',IndexView2.as_view()),
)
我的模板是這樣的
{% block main %}
<form action="teste/" method="POST">{% csrf_token %}{{ form.as_p }}
<input type="submit" name="OK"/>
</form>
<p>{{ texto }}</p>
{% endblock %}
我在django的文檔中搜索了此內容,但django的示例尚不清楚,並且django的aplication僅使用方法,Horizon Dashboard使用類(上面的代碼中的用法)
當我執行此操作時,出現錯誤消息。
此消息說:
AttributeError at /visualizations/validar/
'IndexView' object has no attribute 'POST'
Request Method: GET
Request URL: http://127.0.0.1:8000/visualizations/validar/
Django Version: 1.4.5
Exception Type: AttributeError
Exception Value:'IndexView' object has no attribute 'POST'
Exception Location:
/home/labsc/Documentos/horizon/openstack_dashboard/dashboards/visualizations/validar/views.py in get_context_data, line 14
Python Executable: /home/labsc/Documentos/horizon/.venv/bin/python
Python Version: 2.7.3
我搜索此錯誤,但未發現任何錯誤。
如果有人可以幫助我,我會很感激
您的簽名錯誤:
def get_context_data(request)
應該
def get_context_data(self, **kwargs):
request = self.request
檢查get_context_data和有關動態過濾的單詞
由於您的第一個參數是self
對象,在這種情況下為request
,因此您將得到錯誤。
如果您更仔細地閱讀錯誤消息,則表明該URL是使用GET方法檢索的。 不得發布 :
AttributeError at /visualizations/validar/ 'IndexView' object has no attribute 'POST' Request Method: GET Request URL: http://127.0.0.1:8000/visualizations/validar/
請參閱以下鏈接,深入了解GET vs POST
默認情況下,TemplateView將在嘗試發布到405時返回不允許的方法。 您可以為此編寫自己的post方法:
class IndexView(TemplateView):
template_name = 'visualizations/validar/index.html'
def get_context_data(request):
#define your context and return
context = super(ContactView, self).get_context_data(**kwargs)
#context["testing_out"] = "this is a new context var"
return context
def post(self, request, *args, **kwargs):
context = self.get_context_data()
if context["form"].is_valid:
print 'yes done'
#save your model
#redirect
return super(TemplateView, self).render_to_response(context)
如果要從表單發布,請改用FormView,仍然可以通過覆蓋get_context_data來定義上下文:
從django.views.generic導入TemplateView,FormView
從表單導入ContactUsEmailForm
class ContactView(FormView):
template_name = 'contact_us/contact_us.html'
form_class = ContactUsEmailForm
success_url = '.'
def get_context_data(self, **kwargs):
context = super(ContactView, self).get_context_data(**kwargs)
#context["testing_out"] = "this is a new context var"
return context
def form_valid(self, form):
# This method is called when valid form data has been POSTed.
# It should return an HttpResponse.
#form.send_email()
#print "form is valid"
return super(ContactView, self).form_valid(form)
contact_us = ContactView.as_view()
和urls.py:
from django.conf.urls import patterns, url
urlpatterns = patterns('contact_us.views',
url(r'^$', 'contact_us', name='contact_us'),
)
希望對您有所幫助:)有關FormsView的更多信息 。
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