Python 如何从TastyPie中的两个ForeignKey字段获取数据?
我有两个模型Python 如何从TastyPie中的两个ForeignKey字段获取数据?,python,django,tastypie,Python,Django,Tastypie,我有两个模型 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) appr
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)
我的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()
我无法获取带有评论的EateryResource。当我没有评论的时候,它是有效的。如何使用UserResource和CommentsResource获取EaterySource。
对不起我的英语。谢谢 由于注释通过外键链接到您的餐厅,因此您需要如下定义您的
餐厅资源
:
class EateryResource(ModelResource):
user = fields.ToOneField(UserResource, 'author', full=True)
comments = fields.ToManyField(EateryCommentsResource, 'comment_set', full=True)
但我的定义如下:comments=fields.ForeignKey(EateryCommentsResource,'comments',full=True)是在您的资源中,这是错误的。因为在您的模型中定义了一个餐馆可以有许多注释(因为注释有一个餐馆的外键)。如果您在普通的django范围内,您将通过
Eatery.comment\u set.all()
(返回注释列表)获得您对一家餐馆的所有注释,对吗?所以你也需要在你的资源上反映这一点。。。