Django admin 的 list_display 变量统计后台作者发贴总数

models.py

class Article(models.Model):
'''
文章表
'''
title = models.CharField(u"文章标题",max_length=255,unique=True)
categroy = models.ForeignKey("Category",verbose_name=u"板块")
#blank=True,null=True,后台提交form允许keywords为空
keywords = models.CharField(u'文章关键字',max_length=255,blank=True,null=True)
description = models.TextField(u'描述',max_length=200,blank=True,null=True)
head_img = models.ImageField(u"缩略图",upload_to="static/uploads")
#content = models.TextField(u"文章内容",)
content = RichTextField(blank=True,null=True,verbose_name="文章内容")
author = models.ForeignKey("UserProfile",verbose_name=u"作者")
publish_date = models.DateTimeField(u'发布时间',auto_now=True)
hideden = models.BooleanField(u"是否隐藏",default=False)
weight = models.IntegerField(u"优先级",default=1000)

def __unicode__(self):
return "<%s,author:%s>" %(self.title,self.author)

class UserProfile(models.Model):
'''
用户表
'''

user = models.OneToOneField(User)
name = models.CharField(max_length=32)
group = models.ManyToManyField('UserGroup')

def __unicode__(self):
return self.name

admin.py
#自定义userProfile列表项
class UserprofileAdmin(admin.ModelAdmin):
list_display = ('name','get_user_article')

def get_user_article(self,user_id):
num = models.Article.objects.filter(author_id=user_id)
return len(num)

get_user_article.short_description = u'发贴数'

admin.site.register(models.UserProfile,UserprofileAdmin)

后台userprofile 列表展示结果