如何從TastyPie中的兩個ForeignKey字段獲取數據？

我有兩種模式。如何從TastyPie中的兩個ForeignKey字段獲取數據？

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型號：

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()

我不能評論越來越EateryResource。當我沒有評論，它的工作。如何通過UserResource和CommentsResource獲得EateryResourse。對不起，我的英文。謝謝。

來源

2016-01-20 Vitek

由於評論鏈接到你的餐館通過量一個ForeignKey，你需要定義EateryResource這樣的：

class EateryResource(ModelResource): 

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

來源

2016-01-20 10:11:56

但是我這樣定義的：評論= fields.ForeignKey（EateryCommentsResource，「評論」，全=真） – Vitek

是在你的資源，這是錯誤的。因爲在你的模型中，它被定義爲一個餐館可以有很多評論（因爲評論有一個ForeignKey餐館）。如果你在簡單的django範圍內，你會通過'eatery.comment_set.all（）'（返回一個評論列表）來獲得你對食堂的所有評論。所以你需要在你的資源上反映這一點 - 好吧... –

它的工作。感謝您的解釋！ – Vitek

如何從TastyPie中的兩個ForeignKey字段獲取數據？

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