Follwing是我的模特
class Group(Log_Active_Owned_Model_Mixin):
group_name = SafeCharField(max_length = 100, null=False, blank=False, sanitize_cb=safe_name_sanitizer)
group_creator = ForeignKey(to=PSS_User, null=False, related_name="group_creator")
members = ManyToManyField(to=PSS_User, through="GroupMemberShip", related_name="group_member")
class Meta:
ordering = ("Meta", )
## other methods also exists in this class.
class GroupMemberShip(Log_Active_Owned_Model_Mixin, ResolvableModelMixin):
MEMBER_NONE = 1
MEMBER_ADMIN = 2
MEMBER_STANDARD = 4
VALID_MEMBERSHIPS = (
(MEMBER_ADMIN, "Admin" ),
(MEMBER_STANDARD, "Standard" ),
(MEMBER_NONE, "None" )
)
member = ForeignKey(to=PSS_User, null=False, related_name="groups")
group = ForeignKey(to=Group, null=False, related_name="members")
membership_type = SmallIntegerField(editable=False, null=False, blank=False, choices=VALID_MEMBERSHIPS)
membership_request = ForeignKey(to=GroupMemberShipRequest, null=True, blank=True) # null True for group creator
class Meta:
ordering = ("date_created")
unique_together = ("member", "group")
## other methods also exists in this class.
class GroupMemberShipRequest(Log_Active_Owned_Model_Mixin):
GRP_MEMBERSHIP_REQ_STATUS_ACCEPTED = 1
GRP_MEMBERSHIP_REQ_STATUS_REJECTED = 2
GRP_MEMBERSHIP_REQ_STATUS_PENDING = 4
VALID_REQUEST_STATUSES = (
(GRP_MEMBERSHIP_REQ_STATUS_ACCEPTED, "Accepted"),
(GRP_MEMBERSHIP_REQ_STATUS_REJECTED, "Rejected"),
(GRP_MEMBERSHIP_REQ_STATUS_PENDING, "Pending")
)
# TODO :-
# Add a field in request-type. There are two types of requests :-
# User can request admin to include him in the request.
# Admin can request other user, to become part of given group.
GRP_REQUEST_ACTIVE = 1
GRP_REQUEST_PASSIVE = 2
VALID_GRP_REQUESTS = (
(GRP_REQUEST_ACTIVE, "Active"),
(GRP_REQUEST_PASSIVE, "Passive")
)
request_initiator = ForeignKey(to=PSS_User, null=False, blank=False)
request_acceptor_rejector = ForeignKey(to=PSS_User, null=True, blank=False)
request_status = SmallIntegerField(null=False, editable=False, choices=VALID_REQUEST_STATUSES, default=GRP_MEMBERSHIP_REQ_STATUS_PENDING)
target_group = ForeignKey(to=Group, null=False, blank=False, related_name="members")
request_type = SmallIntegerField(null=False, editable=False, default=GRP_REQUEST_ACTIVE, choices=VALID_GRP_REQUESTS)
以下是不同类型的操作,使用此组模型可以实现: -
对于创建/删除操作,事情很清楚,但我对更新操作感到困惑,因为有很多事情可以更新。目前,我在Group类中添加了辅助方法,它完成了上述所有活动。
我的问题是,如何将其与DRF(Django Rest Framework)ModelViewSets集成。由于只有一个update()方法,它只能提供上述更新方案之一。我如何处理其他更新场景?(一个可能的解决方案,我认为在请求中使用操作类型标志并在update()方法中检查它,以决定调用哪个模型方法,但它有点天真的解决方案。有没有更好的方法在Django Rest Framework中执行此操作?)
提前致谢。
答案 0 :(得分:1)
考虑一下这篇文章Best Practices for Designing a Pragmatic RESTful API
将其视为具有RESTful原则的子资源。例如,GitHub的API允许您使用PUT / gists /:id / star和unstar与DELETE / gists /:id / star加注。
在你的情况下,一组有4种不同的动作。我在DRF中看到了解决它的两种方法。按照上面的提示,您可以使用@detail_route装饰器:
from rest_framework.decorators import detail_route
class GroupViewSet(viewsets.ModelViewset):
@detail_route(methods=['put', 'delete'])
def send_invite(self, request, pk=None):
# check for the method provided
# do your logic and return a Response object
pass
它会在详细信息页
之后的视图集路由器中添加其他端点/api/groups/:id/send_invite/
它可以很好地完成简单的任务。但是当你需要一个复杂的嵌套逻辑时,你会发现这个包有用drf-nested-routers。它允许您相互构建视图。
/api/groups/:id/admin/:id/
但有时它有点矫枉过正,它违反了设计API的最佳实践