django foreignkey(外键)的实现

class Usergroup(models.Model):
  uid=models.AutoField(primary_key=True)
  caption=models.CharField(max_length=64,null=True)
  ctime=models.DateField(auto_now_add=True,null=True)
  uptime=models.DateField(auto_now=True,null=True)
class Userinfo(models.Model):
  username=models.CharField(max_length=32,blank=True)
  password=models.FileField(max_length=60,help_text='pwd')
  email=models.CharField(max_length=60)
  test=models.EmailField(max_length=20,null=True,error_messages={'invalid':'shurumima'})
  user_group=models.ForeignKey('Usergroup',to_field='uid',default=1)  #这里与上面的Usergroup表的uid进行关联，默认取到uid=1的行）
  user_type_choices=(
    (1,'superuser'),
    (2,'commonuser'),
    (3,'com-commonuser'),
  )
  user_type_id=models.IntegerField(choices=user_type_choices,default=1)

def user_info(request):
  if request.method == "GET":
    #userlist = test.objects.all()
    userlist2=models.Userinfo.objects.all()  #获取Userinfo表的所有信息

    # return render(request,'userinfo.html',{'userlist':userlist})
    return render(request, 'userinfo.html', {'userlist2': userlist2})   #模板引用
  elif request.method == "POST":
    u = request.POST.get('user')
    pp= request.POST.get('pwd')
    #test.objects.create(username=u,depno=pp)
    models.Userinfo.objects.create(username=u,password=pp,user_group_id=1)
    return HttpResponse("
注册成功
")

  

    是爷们儿就点下 
   
 是爷们儿就洅点下 
  
  

    
添加主机
    

       
      
      
      
    
    
主机列表
    

      {% for i in userlist2 %}
        
{{ i.username }}
        {{ i.user_group.caption }}
        
      {% endfor %}