Python 在Django中手动保存到另一个模型的路径中未显示图像

我有两个带有

ImageField

的型号。我正在使用

sorl缩略图

生成缩略图。第一个模型绑定了一个表单，而第二个模型在保存时从第一个模型获取其

ImageField

型号.py：

#the first model
class NewImage(models.Model):
    thumbnail = models.ImageField(upload_to='photos')
    time_created = models.DateTimeField()
#second
class Users(models.Model):
    name = models.CharField(max_length=100)
    address = models.CharField(max_length=200)
    thumbnail = models.ImageField(upload_to='photos')
    time_created = models.DateTimeField()

class ImageForm(forms.ModelForm):
  class Meta:
    model = NewImage
    fields = {'thumbnail'}

def saveImage(request):
    if request.method == 'POST':
      user = Users.objects.get(id = 1)
      imageForm = ImageForm(request.POST, request.FILES or None)
        if imageForm.is_valid():
            upload_image = imageForm.save(commit=False)
            upload_image.time_created = timezone.now()
            upload_image.save()
            #save image path to user who uploaded it.
            user.thumbnail = upload_image.thumbnail
            user.save()

forms.py：

#the first model
class NewImage(models.Model):
    thumbnail = models.ImageField(upload_to='photos')
    time_created = models.DateTimeField()
#second
class Users(models.Model):
    name = models.CharField(max_length=100)
    address = models.CharField(max_length=200)
    thumbnail = models.ImageField(upload_to='photos')
    time_created = models.DateTimeField()

class ImageForm(forms.ModelForm):
  class Meta:
    model = NewImage
    fields = {'thumbnail'}

def saveImage(request):
    if request.method == 'POST':
      user = Users.objects.get(id = 1)
      imageForm = ImageForm(request.POST, request.FILES or None)
        if imageForm.is_valid():
            upload_image = imageForm.save(commit=False)
            upload_image.time_created = timezone.now()
            upload_image.save()
            #save image path to user who uploaded it.
            user.thumbnail = upload_image.thumbnail
            user.save()

视图.py：

#the first model
class NewImage(models.Model):
    thumbnail = models.ImageField(upload_to='photos')
    time_created = models.DateTimeField()
#second
class Users(models.Model):
    name = models.CharField(max_length=100)
    address = models.CharField(max_length=200)
    thumbnail = models.ImageField(upload_to='photos')
    time_created = models.DateTimeField()

class ImageForm(forms.ModelForm):
  class Meta:
    model = NewImage
    fields = {'thumbnail'}

def saveImage(request):
    if request.method == 'POST':
      user = Users.objects.get(id = 1)
      imageForm = ImageForm(request.POST, request.FILES or None)
        if imageForm.is_valid():
            upload_image = imageForm.save(commit=False)
            upload_image.time_created = timezone.now()
            upload_image.save()
            #save image path to user who uploaded it.
            user.thumbnail = upload_image.thumbnail
            user.save()

如果我将这些传递给我的模板：

image=NewImage.objects.get（id=1）

和

user=Users.objects.get（id=1）

这将显示我的图像：

{% thumbnail image.thumbnail "200x100" crop="center" as im %}
    <img src="..{{ im.url }}" width="{{ im.width }}" height="{{ im.height }}">
{% endthumbnail %}

{%thumbnail image.thumbnail“200x100”crop=“center”as im%}
{%endthumbnail%}

但这只显示一个方形框：

{% thumbnail user.thumbnail "200x100" crop="center" as im %}
    <img src="..{{ im.url }}" width="{{ im.width }}" height="{{ im.height }}">
{% endthumbnail %}

{%thumbnail user.thumbnail“200x100”crop=“center”as im%}
{%endthumbnail%}

这两个图像都有一个指向在缓存文件夹中创建的图像

sorl缩略图的链接

为什么会发生这种情况？我如何才能显示我的
用户.缩略图？
试试以下方法：

user.thumbnail = upload_image.thumbnail.name
user.save()

还有一件事：

而不是执行
upload\u image.time\u created=timezone.now（）
您可以将模型更改为包含
auto\u now\u add=True
，这将自动将创建的时间保存为实际创建的时间。
像这样：

class NewImage(models.Model):
    thumbnail = models.ImageField(upload_to='photos')
    time_created = models.DateTimeField(auto_now_add=True)

希望有帮助。
为什么不使用foreignkey字段呢？无论如何，要调试这个问题，我建议您转到数据库表（即用户表），检查数据（即路径，通常是相对的）是否保存在数据库中？@Ajeeb.K.p：我已经这样做了，它保存在那里。我指的是上传图像的路径。它们是否相同，即用户和新图像中的缩略图？是的，正如我在问题中解释的那样。他们是一样的，你确定吗。或者是
user.thumbnail=upload\u image.thumbnail.url user.save（）
我想应该保存url。看看这个问题，url是用来显示文件的。对吗？但是，更好的解决办法是在这里使用ForeignKeyField。url仅包括图像路径前面的媒体\u url，即使您保存user.thumboil以上载\u image.thumboil并稍后执行。url，它也会工作