Django 管理站点：需要帮助

Question

我正在尝试自定义 djando admin.py.I 想在 class ContributionAdmin 中注册一个模型 Contribution。在管理界面中，我需要打印一个来自另一个模型 Subscriber 的字段 application_number 编号。与 models.How 有外键关系才能做到这一点？

admin.py

class ContributionAdmin(admin.ModelAdmin):
    list_display = ('id','nlcc','subscriber','date','receipt_number','amount', 'status')
    list_filter =  ('nlcc',)
    search_fields = ('receipt_number',)
    exclude = ('subscriber',)
admin.site.register(models.Contribution, ContributionAdmin)

models.py:

class Subscriber(models.Model):
   nlcc = models.ForeignKey(NLCC)
   name = models.CharField(max_length=100,blank=True,null=True)
   type = models.CharField(max_length=50, choices=SUBSCRIBER_TYPE)
   application_date =  models.DateField(null=True)
   application_number =  models.IntegerField()
   staff_agent = models.ForeignKey(StaffAgent, null=True, on_delete=models.SET_NULL)

class Contribution(models.Model):
   nlcc = models.ForeignKey(NLCC)
   subscriber = models.ForeignKey(Subscriber)
   staff_agent = models.ForeignKey(StaffAgent, null=True, on_delete=models.SET_NULL)
   date = models.DateField(null=True)
   initial = models.BooleanField(default=False)
   govt =  models.BooleanField(default=False)
   receipt_number = models.BigIntegerField()
   amount = models.DecimalField(max_digits=10, decimal_places=2)
   status = models.CharField(max_length=50, choices=CONTRIBUTION_STATUS)
   status_date = models.DateField(null=True)
   deleted = models.BooleanField(default=False)
   package = models.ForeignKey('CourierPackage', null=True, on_delete=models.SET_NULL, related_name='contribution')

否则有什么方法可以 return Subscriber 名称而不是对象？

Answer 1

创建一个将 return 所需字段的方法并将此方法的名称添加到 list_display:

class ContributionAdmin(admin.ModelAdmin):

    list_display = ('id','nlcc','subscriber','application_number',
                    'date','receipt_number','amount', 'status')    

    def application_number(self, obj):
        return obj.subscriber.application_number
    application_number.short_description = "Subscriber's Application Number"

更新：如果您想在 subscriber 字段的 select 框中查看 name 和 application_number那么最简单的解决方案就是定义Subscriber模型的__unicode__方法：

class Subscriber(models.Model):
    ...
    def __unicode__(self):
        return u'%s: %s' % (self.name, self.application_number)

更新 2：如果订阅人数太长，那么您可以使用 raw_id_fields 属性:

class ContributionAdmin(admin.ModelAdmin):
    raw_id_fields = ('subscriber', )

更新 3：要将此字段设置为只读，请使用 readonly_fields:

class ContributionAdmin(admin.ModelAdmin):
    readonly_fields = ('subscriber', )

Django 管理站点：需要帮助

Django admin site : Help needed

python

django

django-admin