(首先抱歉我的英语不好) 我试图在用户保存更改时在UpdateView中显示消息!
这是我的观点
class NeedUpdateView(UpdateView):
model = Need
template_name = 'purchases/needs_update_form.html'
pk_url_kwarg = 'need_id'
success_message = 'List successfully saved!!!!'
fields = [
'detail',
]
保存应用时加载相同的模板!但我喜欢在保存对象时显示引导警报!
这是模板中显示消息的代码
{% if messages %}
<div class="alert alert-success">
{% for m in messages %}
<li{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ m }}</li>
{% endfor %}
</div>
{% endif %}
并在设置中添加此
MESSAGE_STORAGE = 'django.contrib.messages.storage.session.SessionStorage'
但是我无法显示消息!对象的更改保存正常,只需要显示消息!
编辑:我在这里显示我的设置,以显示我按照文档中的所有步骤
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.locale.LocaleMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
DJANGO_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
]
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, "templates")],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
'django.template.context_processors.i18n',
'apps.cart.context_processors.cart',
],
},
},
]
答案 0 :(得分:12)
要enable the messages in class based views,您需要使用SuccessMessageMixin
。
from django.contrib.messages.views import SuccessMessageMixin
class NeedUpdateView(SuccessMessageMixin, UpdateView):
...
success_message = 'List successfully saved!!!!'
答案 1 :(得分:0)
您还可以像这样覆盖form_valid方法:
from django.contrib import messages
from django.http import HttpResponseRedirect
class NeedUpdateView(UpdateView):
...
def form_valid(self, form):
messages.success(self.request, "This is my success message")
super().form_valid(form)
return HttpResponseRedirect(self.get_success_url())