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from django import forms
from django.contrib import messages
from django.contrib.messages.views import SuccessMessageMixin
from django.http import HttpResponse, HttpResponseRedirect
from django.template import engines
from django.template.response import TemplateResponse
from django.urls import path, re_path, reverse
from django.views.decorators.cache import never_cache
from django.views.generic.edit import FormView
TEMPLATE = """{% if messages %}
<ul class="messages">
{% for message in messages %}
<li{% if message.tags %} class="{{ message.tags }}"{% endif %}>
{{ message }}
</li>
{% endfor %}
</ul>
{% endif %}
"""
@never_cache
def add(request, message_type):
# Don't default to False here to test that it defaults to False if
# unspecified.
fail_silently = request.POST.get('fail_silently', None)
for msg in request.POST.getlist('messages'):
if fail_silently is not None:
getattr(messages, message_type)(request, msg, fail_silently=fail_silently)
else:
getattr(messages, message_type)(request, msg)
return HttpResponseRedirect(reverse('show_message'))
@never_cache
def add_template_response(request, message_type):
for msg in request.POST.getlist('messages'):
getattr(messages, message_type)(request, msg)
return HttpResponseRedirect(reverse('show_template_response'))
@never_cache
def show(request):
template = engines['django'].from_string(TEMPLATE)
return HttpResponse(template.render(request=request))
@never_cache
def show_template_response(request):
template = engines['django'].from_string(TEMPLATE)
return TemplateResponse(request, template)
class ContactForm(forms.Form):
name = forms.CharField(required=True)
slug = forms.SlugField(required=True)
class ContactFormViewWithMsg(SuccessMessageMixin, FormView):
form_class = ContactForm
success_url = show
success_message = "%(name)s was created successfully"
urlpatterns = [
re_path('^add/(debug|info|success|warning|error)/$', add, name='add_message'),
path('add/msg/', ContactFormViewWithMsg.as_view(), name='add_success_msg'),
path('show/', show, name='show_message'),
re_path(
'^template_response/add/(debug|info|success|warning|error)/$',
add_template_response, name='add_template_response',
),
path('template_response/show/', show_template_response, name='show_template_response'),
]
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