如何从TastyPie中的两个ForeignKey字段获取数据？

我有两种模式。如何从TastyPie中的两个ForeignKey字段获取数据？

class Eatery(models.Model): 
    class Meta: 
     db_table = 'eatery' 

    date_pub = models.DateTimeField(auto_now_add=True) 
    name = models.CharField(max_length=54, blank=True) 
    description = models.TextField(max_length=1024) 
    approve_status = models.BooleanField(default=False) 
    author = models.ForeignKey(User, null=False, blank=True, default = None, related_name="Establishment author") 

    class Comments(models.Model): 
     class Meta: 
      db_table = 'comments' 

     eatery = models.ForeignKey(Eatery, null=False) 
     author = models.ForeignKey(User, null=False) 
     date_pub = models.DateTimeField(auto_now_add=True) 
     approve_status = models.BooleanField(default=True) 
     description = models.TextField(max_length=512)

我TastyPie型号：

class EateryCommentsResource(ModelResource): 
    user = fields.ToOneField(UserResource, 'author', full=True) 

    class Meta: 
     queryset = Comments.objects.all() 
     resource_name = 'comments_eatery' 
     filtering = { 
      'author': ALL_WITH_RELATIONS 
     } 
     include_resource_uri = False 
     #always_return_data = True 
     paginator_class = Paginator 

class EateryResource(ModelResource): 

    user = fields.ToOneField(UserResource, 'author', full=True) 
    comments = fields.ForeignKey(EateryCommentsResource, 'comments', full=True) 

    class Meta: 
     queryset = Eatery.objects.all() 
     #excludes = ['description'] 
     resource_name = 'eatery' 
     filtering = { 
      'author': ALL_WITH_RELATIONS, 
      'comments': ALL_WITH_RELATIONS, 
     } 
     fields = ['user', 'comments'] 
     allowed_methods = ['get'] 
     serializer = Serializer(formats=['json']) 
     include_resource_uri = False 
     always_return_data = True 
     paginator_class = Paginator 
     authorization = DjangoAuthorization()

我不能评论越来越EateryResource。当我没有评论，它的工作。如何通过UserResource和CommentsResource获得EateryResourse。对不起，我的英文。谢谢。

来源

2016-01-20 Vitek

由于评论链接到你的餐馆通过量一个ForeignKey，你需要定义EateryResource这样的：

class EateryResource(ModelResource): 

    user = fields.ToOneField(UserResource, 'author', full=True) 
    comments = fields.ToManyField(EateryCommentsResource, 'comment_set', full=True)

来源

2016-01-20 10:11:56

但是我这样定义的：评论= fields.ForeignKey（EateryCommentsResource，“评论”，全=真） – Vitek

是在你的资源，这是错误的。因为在你的模型中，它被定义为一个餐馆可以有很多评论（因为评论有一个ForeignKey餐馆）。如果你在简单的django范围内，你会通过'eatery.comment_set.all（）'（返回一个评论列表）来获得你对食堂的所有评论。所以你需要在你的资源上反映这一点 - 好吧... –

它的工作。感谢您的解释！ – Vitek

如何从TastyPie中的两个ForeignKey字段获取数据？

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