QiNiuFileField 保存后url却是空的

Question

下面分别是models和view的代码，abc.jpg可以成功提交到qiniu空间，但从代码尝试得到photo.qiniu_image.url却是空，抛出异常"Can not get url of unsaved field."

---

def qiniu_key_maker_image(instance, filename):
    print filename
    return filename

class Photo(models.Model):
    qiniu_image = QiNiuImageField(upload_to=qiniu_key_maker_image, null=True)

---

def save_qiniu_photo(request):
    f = open("abc.jpg")

    photo = Photo()
    photo.qiniu_image = f
    photo.save()

    print photo.qiniu_image.url
    print dir(photo.qiniu_image)
    return HttpResponse(django_qiniu.utils.get_size(f))

django_qiniu version = (0, 0, 1)
qiniu version = '6.1.8'
django 1.4.16

Answer 1

问题已解决，是因为上传的文件名中含有路径，包含/字符。
在models改为下述代码即可：

def qiniu_key_maker_image(instance, filename):
    return os.path.basename(filename)