index_views.py 文件源码

def is_user_exists(request):
    """
    Checks if user is exists. If exists return True, else False.
    """
    if request.is_ajax():
        is_user_exists_form = IsUserExistsForm(request.GET)

        if is_user_exists_form.is_valid():
            try:
                User.objects.get(username=is_user_exists_form.cleaned_data['username'])
                return HttpResponse(json.dumps(True), content_type='application/json')

            except ObjectDoesNotExist:
                return HttpResponse(json.dumps(False), content_type='application/json')
    else:
        return HttpResponse(status=404)


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