Question

我尝试使用Django作为后端上传照片。

我使用的模型是：

def inspection_picture_path(self, filename):
    return 'inspection_{0}/{1}'.format(self.inspection.id, filename)


class InspectionPictures(models.Model):
    inspection = models.ForeignKey(Inspection, on_delete=models.CASCADE)
    picture = models.FileField(upload_to=inspection_picture_path, blank=True)

    def __str__(self):
        return "Inspection-{}".format(self.inspection.id)

在settings.py我有：

MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'master/static/master/img/inspection_pictures'),
STATICFILES_DIRS = (os.path.join(BASE_DIR, 'master/static/master/img/inspection_pictures'),)

我尝试保存图片的view中的功能如下：

def save_pictures(inspection, pictures):

    print(pictures)

    for picture in pictures['pictures']:
        n_picture = InspectionPictures()
        n_picture.inspection_id = inspection.id
        n_picture.picture = picture
        n_picture.save()

print(pictures)给了我以下结果：

<MultiValueDict: {'pictures': [<InMemoryUploadedFile: samsung-s8.png (image/png)>, <InMemoryUploadedFile: Simulator Screen Shot 6 Jul 2017, 15.43.55.png (image/png)>]}>

因此，图像在那里，但是当我尝试保存它们时，我收到一个错误：

AttributeError：＆＃39; bytes＆＃39;对象没有属性＆＃39; _committed＆＃39;

知道我做错了吗？

更新

我在save_pictures函数中调用的视图如下：

@token_required
@transaction.atomic
def add_inspection(request):
    if request.method == "POST":
        data = json.loads(request.POST.get('data'))
        pictures = request.FILES

        n_inspection = Inspection()
        n_inspection.user_id = data['user']['id']
        n_inspection.data = json.dumps(data)
        n_inspection.save()

        save_pictures(n_inspection, pictures)

        return HttpResponse("Its ok.", status=200)
    else:
        return HttpResponse("Something went wrong.", status=400)

Inspection模型是：

class Inspection(models.Model):
    user = models.ForeignKey(to=User)
    data = models.TextField(null=False, blank=False, default=None)
    history = HistoricalRecords()

    class Meta:
        verbose_name_plural = "Inspections"

使用Django上传图片

0 个答案: