Question

我有一个帖子模型和一个postImage模型：

class PostImage(models.Model):
    post =  models.ForeignKey(Post, related_name="images")
    # @@@@ figure out a way to have image folders per user...
    image = models.ImageField(upload_to='images')
    description = models.CharField(max_length=100)
    order = models.IntegerField()

我为两者创建了tastypie资源：

class PostImageResource(ModelResource):
    class Meta:
        queryset = PostImage.objects.all()
        resource_name = 'postImage'


class PostResource(ModelResource):
    images = fields.ForeignKey(PostImageResource, 'images', full=True)
    class Meta:
        queryset = Post.objects.all()
        resource_name = 'post'

当我尝试浏览api/v1/post/?format=json时，出现以下错误：

The object '' has an empty attribute 'image' and doesn't allow a default or null value.

我还没有任何PostImages。

如果我摆脱images = fields.foreignKey中的PostResource行，它就可以了。如果我浏览到api/v1/postImage/?format=json，则不会显示任何错误，只会显示一个空集合。

Answer 1

试试这个：

class PostResource(ModelResource):
    images = fields.OneToManyField(PostImageResource, 'images', full=True)
    class Meta:
        queryset = Post.objects.all()
        resource_name = 'post'

-------编辑-------

嗯...

在你的模特中：

class PostImage(models.Model):
    post =  models.ForeignKey(Post, related_name="images")
    image = models.ImageField(upload_to='images', null=True, blank=True)
    description = models.CharField(max_length=100)
    order = models.IntegerField()

注意null = True且空白= True。

django-tastypie外键问题

1 个答案: