我有两个模型ImageField
。 我正在使用sorl-thumbnail
生成缩略图。第一个模型有一个绑定到它的表单,而第二个模型在保存时从第一个模型填充ImageField
。
models.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()
forms.py :
class ImageForm(forms.ModelForm):
class Meta:
model = NewImage
fields = {'thumbnail'}
views.py :
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)
。
这会显示我的图片:
{% thumbnail image.thumbnail "200x100" crop="center" as im %}
<img src="..{{ im.url }}" width="{{ im.width }}" height="{{ im.height }}">
{% endthumbnail %}
但这只显示一个方框:
{% thumbnail user.thumbnail "200x100" crop="center" as im %}
<img src="..{{ im.url }}" width="{{ im.width }}" height="{{ im.height }}">
{% endthumbnail %}
这两个图片都有指向缓存文件夹中创建的图片sorl-thumbnail
的链接。
为什么会发生这种情况?如何显示我的user.thumbnail
?
答案 0 :(得分:0)
试试这个:
user.thumbnail = upload_image.thumbnail.name
user.save()
还有一件事:
而不是upload_image.time_created = timezone.now()
您可以更改模型以包含auto_now_add=True
,这将自动将time_created保存到实际创建的时间。
像这样:
class NewImage(models.Model):
thumbnail = models.ImageField(upload_to='photos')
time_created = models.DateTimeField(auto_now_add=True)
希望它有所帮助。