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[英]How to do auto-reloading of jinja 2 data in Flask without refreshing page?
[英]Django How do i Insert data without refreshing or reloading page
在用户插入数据后如何在 Django 中返回当前页面(request.post)
设想:
如果教师插入学生的成绩,当前页面将重新加载或刷新。
我不知道我是否可以通过使用重定向来实现它。
def grades(request):
V_insert_data = StudentSubjectGrade(
...
)
V_insert_data.save()
//redirect the same page
def teacher(request):
if request.method != 'POST':
raise Http404('Only POSTs are allowed')
try:
......
return render(request, 'Homepage/index.html')
except EmployeeUser.DoesNotExist:
messages.warning(request, 'Your Username and password are Incorrect.')
….
return render(request, 'Homepage/TeacherLogin.html')
网址.py
path('teacher/', Homepage.views.teacher, name='teacher'),
path('grades/', Homepage.views.grades, name='grades'),
这是我得到的错误
更新
当我改变我的
response = redirect(teacher)
return response
对此
return redirect(reverse('teacher'))
我得到相同的结果
再次更新
当我尝试这个时
def grades(request):
V_insert_data = StudentSubjectGrade(
...
)
V_insert_data.save()
return HttpResponseRedirect(request.path_info)
我收到这个错误
我已经清除了我的 cookie,但仍然出现此错误
如果您想在表单成功提交后重定向到同一页面,请返回HttpResponseRedirect
。 让我在这里给出一个示例视图
from django.http import HttpResponseRedirect
def grades(request):
if request.method == 'POST':
# do your stuff here (saving data to db)
return HttpResponseRedirect(request.path_info)
return render(request, template, {'form': your_form})
def grades(request):
V_insert_data = StudentSubjectGrade(
...
)
V_insert_data.save()
return redirect(reverse('teacher'))
def teacher(request):
if request.method == 'POST':
try:
......
return render(request, 'Homepage/index.html')
except EmployeeUser.DoesNotExist:
messages.warning(request, 'Your Username and password are Incorrect.')
….
return render(request, 'Homepage/TeacherLogin.html')
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