小编Oli*_*ant的帖子

我在djando 1.5中定义了以下模型和管理员.这是子网和vlan之间的多对多关系.我在ManyToMany字段中使用related_name选项,以便能够从相关的子网对象中获取vlan的集合.从管理员向vlan添加子网效果很好.但是,当我尝试将horizo​​ntal_filer添加到子网admin以便将van添加到其vlan集时,我收到一条错误消息,指出vlans属性不存在.我在某些视图中使用子网对象,我可以正确访问vlans属性.

我在这做错了什么？我见过类似的帖子,但我无法适应任何提议的解决方案.

谢谢你的帮助

model.py

from django.db import models

class Subnet(models.Model):
    networkAddress = models.CharField(max_length=15)
    size = models.IntegerField()

    def __unicode__(self):
        return "%s/%s" % (self.networkAddress, self.size)

class IpAddress(models.Model):
    ipAddress = models.CharField(max_length=15)
    subnet = models.ForeignKey(Subnet)

    def __unicode__(self):
        return "%s" % (self.ipAddress)

class Vlan(models.Model):
    number = models.IntegerField()
    description = models.CharField(max_length=150)
    subnets = models.ManyToManyField(Subnet, related_name='vlans', blank=True)

    def __unicode__(self):
        return "VLAN %s (%s)" % (self.number, self.description)

admin.py

from network.models import Subnet, IpAddress, Vlan
from django.contrib import admin

class SubnetAdmin(admin.ModelAdmin):
    filter_horizontal = ('vlans',)

admin.site.register(Subnet, SubnetAdmin)
admin.site.register(IpAddress)
admin.site.register(Vlan) …