我有一些基于类的视图,我使用 Django 消息框架 如果表单 POST
is_valid
,则发送 success_message。
如果表单 POST 无效,我还想发送自定义
error_message
。
如何配置
success_message
非常明显,只需使用 SuccessMessageMixin 和
添加“success_message”变量。我尝试过同样的方法
error_message,但我的所有尝试都没有显示
表单页面上的错误闪现消息 - 我的尝试在下面的 else:
块中被注释掉。
向 CBV 发送错误消息似乎是一种非常常见的情况,但我在 Django 文档或其他在线地方找不到任何示例。
有谁知道我怎样才能完成这个任务?
澄清一下 - 我不是在谈论添加 ValidationErrors 是为特定领域创建的。我有 ValidationErrors 字段工作正常。这 指的是出现在顶部的自定义闪现消息 页。
#views.py
class DocCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
model = Doc
form_class = DocForm
template_name = "doc/doc_form.html"
context_object_name = 'doc'
success_message = 'Doc successfully created!'
error_meesage = "Error saving the Doc, check fields below."
def form_valid(self, form):
form.instance.created_by = self.request.user
return super().form_valid(form)
def form_submit(self, request):
if request.method == 'POST':
form = DocForm(request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect(reverse('doc-detail'))
else:
# messages.error(self.request, error_message)
# messages.add_message(self.request, messages.ERROR, error_message)
# form = DocForm()
return redirect('doc-detail', pk=post.pk)
#base.html
{% if messages %}
{% for message in messages %}
<div class="alert {% if message.tags %}alert-{{ message.tags }}{% endif %}">
{{ message }}<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span></button></div>
{% endfor %}
{% endif %}
{% block content %}
{% endblock content %}
form_invalid(…)
方法[Django-doc] 添加错误消息:
from django.contrib import messages
class DocCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
model = Doc
form_class = DocForm
template_name = "doc/doc_form.html"
context_object_name = 'doc'
success_message = 'Doc successfully created!'
error_message = 'Error saving the Doc, check fields below.'
def get_success_url(self):
return reverse('doc-detail', kwargs={'pk': self.object.pk})
def form_valid(self, form):
form.instance.created_by = self.request.user
return super().form_valid(form)
def form_invalid(self, form):
messages.error(self.request, self.error_message)
return super().form_invalid(form)
尝试将消息添加到
form_submit
,类似这样的:
#views.py
class DocCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
model = Doc
form_class = DocForm
template_name = "doc/doc_form.html"
context_object_name = 'doc'
success_message = 'Doc successfully created!'
error_meesage = "Error saving the Doc, check fields below."
def form_valid(self, form):
form.instance.created_by = self.request.user
return super().form_valid(form)
def form_submit(self, request):
if request.method == 'POST':
form = DocForm(request.POST)
if form.is_valid():
form.save()
else:
messages.error(self.request, self.error_message)
return HttpResponseRedirect(reverse('doc-detail'))
return redirect('doc-detail', pk=post.pk)