Tastypie ManyToMany 中的 POST / PUT 错误
Posted
技术标签:
【中文标题】Tastypie ManyToMany 中的 POST / PUT 错误【英文标题】:Errors with POST / PUT in Tastypie ManyToMany 【发布时间】:2016-04-01 01:32:27 【问题描述】:我在使用带有 Tastypie 的 ManyToMany 发布和放置数据时收到错误消息。 我花了几个小时试图自己弄清楚并查看了以下帖子:
Nesting tastypie UserProfileResource and UserResource, null value in column \"user_id\" violates not-null constraint Django Tastypie Many to Many (self) field update using a PATCH or PUT request?Django TastyPie Patch to a Many-to-Many Django Tastypie not Updating Resource with ManyToManyField django-tastypie: Posting to a Resource having ManytoMany field with through relationshipiapp/models.py
class Rankings(models.Model):
rank_type = models.CharField(max_length=120,default='',blank=True,null=True)
rank = models.IntegerField()
ranking_domain = models.CharField(max_length=120,default='',blank=True,null=True)
ranking_url = models.CharField(max_length=120,default='',blank=True,null=True)
class Keyword(models.Model):
keyword = models.CharField(max_length=120,default='',blank=True,null=True)
u_ts = models.DateTimeField(auto_now_add=True,auto_now=False)
state = models.CharField(max_length=120,default='',blank=True,null=True)
s_ts = models.DateTimeField(blank=True,null=True)
ip = models.CharField(max_length=120,default='',blank=True,null=True)
rankings = models.ManyToManyField(Rankings,blank=True)
iapp/api/resources.py
class KeywordResource(ModelResource):
rankings = fields.ToManyField('iapp.api.resources.RankingsResource', 'rankings',null=True, full=True)
class Meta:
queryset = Keyword.objects.all()
resource_name = 'keyword'
allowed_methods = ['get','post','put','patch']
authentication = ApiKeyAuthentication()
authorization = DjangoAuthorization()
filtering = "keyword": ('exact', 'startswith',),
"state": ('exact',)
class RankingsResource(ModelResource):
class Meta:
queryset = Rankings.objects.all()
resource_name = 'rankings'
fields = ['rank_type']
allowed_methods = ['get','post','put','patch']
authentication = ApiKeyAuthentication()
authorization = DjangoAuthorization()
发布功能:
def add_keyword(self,**kwargs):
keyword = kwargs['keyword']
data = "keyword": keyword,
"u_ts":None,
"state":"added",
"s_ts":None,
"ip":None,
"rankings":["rank_type":'typetest',
"rank":0,
"ranking_domain":'domaintest',
"ranking_url":'urltest']
req_post = requests.post(self.endpoints['keywords'],#dict for different endpoints
headers=self.headers,#my authentication
data=json.dumps(data))
错误:
NOT NULL constraint failed: iapp_rankings.rank
但是,数据(减去排名数据)被添加到数据库中。
任何帮助将不胜感激。
【问题讨论】:
【参考方案1】:问题是,你有fields = ['rank_type']
。
试试fields = ['rank_type', 'rank']
,它应该可以工作。
【讨论】:
以上是关于Tastypie ManyToMany 中的 POST / PUT 错误的主要内容,如果未能解决你的问题,请参考以下文章
@ManyToMany @JoinTable 之类的注释,有啥作用?可以不写吗?