如何配置 Tastypie 以将字段视为唯一字段?如果我尝试为标记为唯一的字段插入重复条目,我的期望是收到某种非 500 错误(可能是 409 冲突?)作为响应。
我浏览了文档,看起来对我来说应该很明显,但由于某种原因,我没有得到我期望看到的响应。
这是文档链接:
http://readthedocs.org/docs/django-tastypie/en/latest/fields.html?highlight=unique
示例代码如下:
网址.py
v1_api = Api(api_name='v1')
v1_api.register(CompanyResource())
urlpatterns = patterns('',
(r'^api/', include(v1_api.urls)),
)
资源.py
class CompanyResource(ModelResource):
CompanyName = fields.CharField(attribute='company_name')
CompanyId = fields.CharField(attribute='company_id', unique=True)
Contact = fields.CharField(attribute='contact')
Email = fields.CharField(attribute='email')
Phone = fields.CharField(attribute='phone')
class Meta:
queryset = Company.objects.all()
authentication = BasicAuthentication()
authorization = Authorization()
allowed_methods = ['get', 'post']
模型.py
class Company(models.Model):
company_name = models.TextField(default=None, blank=True, null=True)
company_id = models.CharField(default='', unique=True, db_index=True, max_length=20)
contact = models.TextField(default=None, blank=True, null=True)
email = models.EmailField(default=None, blank=True, null=True)
phone = models.TextField(default=None, blank=True, null=True)
我收到的错误如下(使用 curl 访问我的本地服务):
curl --dump-header - -H "Content-Type: application/json" -X POST --user user:password --data '{"CompanyName": "company", "CompanyId": "1234567890", "Contact": "John", "Email": "example@example.com", "Phone": "555-555-5555"}' http://localhost:8000/api/v1/company/
HTTP/1.0 500 INTERNAL SERVER ERROR
Date: Thu, 15 Sep 2011 18:25:20 GMT
Server: WSGIServer/0.1 Python/2.7.1
Content-Type: application/json; charset=utf-8
{"error_message": "(1062, \"Duplicate entry '1234567890' for key 'api_company_company_id_uniq'\")",
...<snip>...
raise errorclass, errorvalue\n\nIntegrityError: (1062, \"Duplicate entry '1234567890' for key 'api_company_company_id_uniq'\")\n"}
当我unique=True, db_index=True,
从公司模型中删除时,我没有收到完整性错误,而是创建了一个新的重复资源。同样,这不是预期的结果,因为我希望独特地执行一些验证并导致一些非 500 响应。