Question

我希望在保存行时显示成功的消息，使用Django的消息框架和基于类的视图，代码如下所示，但不显示消息。

非常感谢任何帮助

#views.py

from django.views.generic import ListView, CreateView, UpdateView, TemplateView
from django.contrib.messages.views import SuccessMessageMixin

class CreateEmployee(SuccessMessageMixin, CreateView):
    model = Employee
    template_name = 'employees/create.html'
    form_class = frmCreate

    def get_success_url(self):
       return reverse('Employees:Create')

    def get_context_data(self, **kwargs):
        contexto = super(CreateEmployee, self).get_context_data(**kwargs)
        contexto['action'] = reverse('Employees:Create')
        return contexto

    success_message = 'Employee successful created'



#template
#create.html

<form action="{{ action }}" method="POST" role="form">
    {% csrf_token %}

    {{ form.as_p }}

    <input type="submit" value="Save" class="btn btn-success">
<form>

{% if messages %}
    <div class="col-lg-3 color03">
        <ul class="messages">
            {% for message in messages %}
                <li{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</li>
            {% endfor %}
        </ul>
    </div>
{% endif %}

Answer 1

只需使用self.request，就像这样：

from django.contrib import messages
messages.add_message(self.request, messages.INFO, 'Hello world.')

Answer 2

#Using django 3.2

#In views.py  

from django.contrib import messages
from .models import CreateEmployer
from django.views.generic import CreateView

class SignUpView(CreateView):
    model = CreateEmployer
    template_name = ‘employee/register_employee.html’
    fields = '__all__'

    # this method will enable your message to display
    # you can also use it to overwrite form data.
    def form_valid(self, form):
        messages.success(self.request, f”Account created successfully”)
        return super().form_valid(form)


#in your urls.py
from .views import SingUpView
from django.urls import path


urlpatterns = [
    path(‘register/‘, SignUpView.as_view(), name=“user-register"),
]


#in your template

 {% if messages %}
   {% for message in messages %}
     <div class="alert alert-{{message.tags}}">
       {{message}}
     </div>
   {% endfor %}
{% endif %}


#I hope this helps anyone facing same problem in the future.

Answer 3

您必须在settings.py

中设置邮件存储空间

MESSAGE_STORAGE = 'django.contrib.messages.storage.session.SessionStorage'

问候

Answer 4

使用Django 2.2，根据文档here，这是在基于CLASS的视图上对我自己有用的内容：

settings.py

INSTALLED_APPS = [
    'django.contrib.messages',
]

MIDDLEWARE = [
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
]

TEMPLATES = [
    {
        'BACKEND': #,
        'DIRS': #,
        'APP_DIRS': #,
        'OPTIONS': {
            'context_processors': [
                'django.contrib.messages.context_processors.messages',
          ],
     },
]

“默认存储后端取决于会话。这就是为什么必须启用SessionMiddleware并使其出现在MIDDLEWARE中的MessageMiddleware之前。”

views.py

from django.contrib.messages.views import SuccessMessageMixin

class SignUpView(SuccessMessageMixin, CreateView):
    form_class = CustomUserCreationForm
    success_url = reverse_lazy('users:login')
    template_name = 'users/register.html'
    success_message = "%(username)s was created successfully"

urls.py

path(_('register/'), views.SignUpView.as_view(), name='register'),

在模板中：（使用引导程序类）

 {% if messages %}
     {% for message in messages %}
         <div class="text-center alert alert-{{ message.tags }}">
             {{ message|safe }}
         </div>
     {% endfor %}
 {% endif %}

使用基于类的视图显示成功的消息

4 个答案: