单击按钮不更新django中的视图
单击按钮不更新django中的视图
提问于 2020-07-06 08:30:01
我有一个带有任务列表的视图，并试图在单击时进行简单的任务分配，但它不起作用。你能支持一下吗？我在控制台中看到类似这样的东西："POST /task/allocate HTTP/1.1“3020。谢谢。
我
型号：
class Task(models.Model):
name = models.CharField(max_length=248)
note = models.TextField(blank=True, null=True)
priority = models.NullBooleanField(blank=True, null=True)
status = models.IntegerField(choices=TASK_STATUS, default=TASK_STATUS[0][0])
placed_date = models.DateField(auto_now=True)
due_date = models.DateTimeField(blank=True, null=True)
completed = models.BooleanField(default=False)
completed_date = models.DateField(blank=True, null=True)
created_by = models.ForeignKey(
User,
null=True,
blank=True,
related_name="hana_created_by",
on_delete=models.CASCADE)
assigned_to = models.ForeignKey(User,
null=True,
blank=True,
related_name="hana_assigned_to",
on_delete=models.CASCADE)urls：
path('excel_table', ex_views.ExcelTableView.as_view(), name = "excel-table"),
path("task/add", ex_views.TaskAddView.as_view(), name="task-add"),
path("task/<int:task_id>/", ex_views.TaskDetailView.as_view(), name="task-detail"),
path("task/<int:pk>/edit", ex_views.TaskEditView.as_view(), name="task-update"),
path("task/allocate", views.task_allocator, name="task-allocate"),视图：
class TaskAllocateView(View):
def post(self, request):
if request.POST.get("task_allocate") is not None:
tasks = Task.objects.filter(assigned_to=None)
for task in tasks:
task.assigned_to = random.choice(User.objects.all())
task.status = 1
task.save()
current_site = get_current_site(request)
subject = render_to_string('email/assigned_subject.txt', {"task": task})
body = render_to_string('email/assigned_body.txt', {
'task': task,
'site': current_site,
})
to_email = task.assigned_to.email
email = EmailMessage(subject, body, to=[to_email])
email.send()
if tasks:
messages.success(request, "Tasks succesfully allocated to your employees. Check status!")
messages.success(request, ('Notification email has been sent to assignees!'))
else:
messages.warning(request, "All tasks already allocated!")
messages.warning(request, ('Notification email already sent!'))
return redirect(reverse("excel-table"))
return redirect(reverse("excel-table"))模板：
<form method="POST" action="{% url "task-allocate" %}" role="form" class="d-inline">
{% csrf_token %}
<div style="display:inline;">
<button class="btn btn-info btn-sm" type="submit" name="task_allocate">
Task Allocate
</button>
</div>
</form>回答 1
Stack Overflow用户
发布于 2020-07-06 11:21:26
if t.assigned_to != None:
t.status = 1
t.save()
messages.success(request, "Tasks succesfully allocated to your employees. Check status!")
return redirect(reverse("excel-table"))这个if将永远不会被执行，因为在你保存它之前，created_by将保持为空。
t.assigned_to = random.choice(User.objects.all())
if t.assigned_to != None:你这样做的想法是，这个t.assigned_to不再是None，它仍然是None，因为你没有保存。
希望这篇文章能对你有所帮助。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/62747721
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