django使用创建的主键将数据插入另一个表

Question

我有2张桌子。 Schedule和BookAppt。创建计划后，我想使用创建的scheduleId作为BookAppt中的一个字段插入。但是我的方法有这个错误。

File "C:\Django project\AppImmuneMe2\customuser\views.py", line 62, in my_django_view schedule = data['save1.scheduleId'] KeyError: 'save1.scheduleId'

我可能知道出了什么问题吗？

    # Create a schedule
    user = data['patientId']
    userId = MyUser.objects.get(userId=user)

    save_attrs_schedule = {
        "userId": userId,
        "date": data["date"],
        "startTime": data["time"],
        "endTime": end_time,
        "status": data["status"],
    }
    save1 = Schedule.objects.create(**save_attrs_schedule)

    # Create a BookAppt with schedule that was just created as foreign key
    patient = data['patientId']
    patientId = MyUser.objects.get(userId=patient)
    schedule = data['save1.scheduleId']
    scheduleId = Schedule.objects.get(scheduleId=schedule)

    saveget_attrs_bookappt = {
        "patientId": patientId,
        "clinicId": data["clinicId"],
        "date": data["date"],
        "time": data["time"],
        "scheduleId": scheduleId,
    }
    save2 = BookAppt.objects.create(**saveget_attrs_bookappt)

模型

class Schedule(models.Model):
    scheduleId = models.AutoField(primary_key=True)
    userId = models.ForeignKey(MyUser, on_delete=models.CASCADE)
    title = models.CharField(max_length=100, blank=True, null=True)
    type = models.CharField(max_length=100, blank=True, null=True)
    desc = models.CharField(max_length=255, blank=True, null=True)
    date = models.DateField()
    startTime = models.TimeField()
    endTime = models.TimeField()
    location = models.CharField(max_length=255, blank=True, null=True)
    # reminder
    status = models.CharField(max_length=10, blank=True, null=True)
    active = models.CharField(max_length=10, blank=True, null=True)

    def __str__(self):
        return self.title


class BookAppt(models.Model):
    clinicId = models.CharField(max_length=20)
    patientId = models.ForeignKey(MyUser, on_delete=models.CASCADE)
    scheduleId = models.ForeignKey(Schedule, on_delete=models.CASCADE)
    scheduleTime = models.DateTimeField(blank=True, null=True)
    date = models.DateField()
    time = models.TimeField()
    ticketNo = models.CharField(max_length=5)
    status = models.CharField(max_length=20)

查看

class ScheduleViewSet(viewsets.ModelViewSet):
    permission_classes = [AllowAny]
    queryset = Schedule.objects.all()
    serializer_class = ScheduleSerializer

class BookApptViewSet(viewsets.ModelViewSet):
    permission_classes = [AllowAny]
    queryset = BookAppt.objects.all()
    serializer_class = BookApptSerializer

stacktrace

[05/Feb/2018 17:27:03] "POST /test/ HTTP/1.1" 200 139 Internal Server Error: /api/bookapp/ Traceback (most recent call last): File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\handlers\exception.py", line 41, in inner response = get_response(request) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\handlers\base.py", line 217, in _get_response response = self.process_exception_by_middleware(e, request) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\handlers\base.py", line 215, in _get_response response = response.render() File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\response.py", line 107, in render self.content = self.rendered_content File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\response.py", line 72, in rendered_content ret = renderer.render(self.data, accepted_media_type, context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\renderers.py", line 706, in render context = self.get_context(data, accepted_media_type, renderer_context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\renderers.py", line 679, in get_context 'post_form': self.get_rendered_html_form(data, view, 'POST', request), File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\renderers.py", line 509, in get_rendered_html_form return self.render_form_for_serializer(serializer) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\renderers.py", line 519, in render_form_for_serializer {'style': {'template_pack': 'rest_framework/horizontal'}} File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\renderers.py", line 371, in render return template_render(template, context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\compat.py", line 340, in template_render return template.render(context, request=request) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\backends\django.py", line 66, in render return self.template.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 207, in render return self._render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 199, in _render return self.nodelist.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 990, in render bit = node.render_annotated(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 957, in render_annotated return self.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\defaulttags.py", line 216, in render nodelist.append(node.render_annotated(context)) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 957, in render_annotated return self.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\defaulttags.py", line 322, in render return nodelist.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 990, in render bit = node.render_annotated(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 957, in render_annotated return self.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\library.py", line 203, in render output = self.func(*resolved_args, **resolved_kwargs) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\templatetags\rest_framework.py", line 91, in render_field return renderer.render_field(field, style) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\renderers.py", line 350, in render_field return template_render(template, context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\compat.py", line 340, in template_render return template.render(context, request=request) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\backends\django.py", line 66, in render return self.template.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 207, in render return self._render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 199, in _render return self.nodelist.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 990, in render bit = node.render_annotated(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 957, in render_annotated return self.render(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\defaulttags.py", line 166, in render values = self.sequence.resolve(context, True) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 708, in resolve obj = self.var.resolve(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 849, in resolve value = self._resolve_lookup(context) File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\template\base.py", line 911, in _resolve_lookup current = current() File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\relations.py", line 209, in iter_options self.get_choices(cutoff=self.html_cutoff), File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\relations.py", line 196, in get_choices for item in queryset File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\relations.py", line 196, in <listcomp> for item in queryset File "C:\Users\Baka No Onii Chan\AppData\Local\Programs\Python\Python36-32\lib\site-packages\rest_framework\relations.py", line 215, in display_value return six.text_type(instance) TypeError: __str__ returned non-string (type NoneType) [05/Feb/2018 17:27:24] "GET /api/bookapp/ HTTP/1.1" 500 244570

Answer 1

schedule = save1.id
scheduleId = Schedule.objects.get(scheduleId=schedule)

只需使用此

    def __str__(self):
        return self.clinicId

将此行添加到BookApt模型