Python Django管理列表\显示属性用法

我有模型和他们的管理代码在下面。问题是如何在其

列表(display

属性)中显示书籍的前三个

标记

？ 我可以在书编辑时显示标签，但我想在书在管理面板中列出时显示它的3个标签

型号.py

class Book(models.Model):
    name = models.CharField(max_length=1000)

    def __unicode__(self):
        return self.name

class BookTag(models.Model):
    name = models.CharField(max_length=1000)
    book = models.ForeignKey(Book,null=False,blank=False)    
    def __unicode__(self):
        return self.name

class BookTagInline(admin.TabularInline):
    model = JobTitleTag

class BookAdmin(admin.ModelAdmin):
    list_display = ('name')
    inlines = [ BookTagInline, ]

admin.site.register(Book,BookAdmin)

admin.py

class Book(models.Model):
    name = models.CharField(max_length=1000)

    def __unicode__(self):
        return self.name

class BookTag(models.Model):
    name = models.CharField(max_length=1000)
    book = models.ForeignKey(Book,null=False,blank=False)    
    def __unicode__(self):
        return self.name

class BookTagInline(admin.TabularInline):
    model = JobTitleTag

class BookAdmin(admin.ModelAdmin):
    list_display = ('name')
    inlines = [ BookTagInline, ]

admin.site.register(Book,BookAdmin)

你能给我一些建议吗？

---

谢谢

在admin类上使用自定义方法

class BookAdmin(admin.ModelAdmin):
    list_display = ('name', 'three_tags')

    def three_tags(self, obj):
        return obj.booktag_set.all()[:3]