如何讓Django Admin顯示與外鍵連接的字段？

Question

如何讓Django將AnotherAim.aimid.code的外鍵顯示在後端AnotherAimAdmin的tabel中？

這是一個經典的管理員「視圖」由兩個不同的tabels在後臺分離：

class AimAdmin(admin.ModelAdmin): 
    list_display = ('code') 

# AnotherAim and AIM are connected via a foreight key 

class AnotherAimAdmin(admin.ModelAdmin): 
    list_display = ('name','sur_name', 'email') 
    search_fields = ['name','sur_name'] 


admin.site.register(Aim,AimAdmin) 
admin.site.register(AnotherAim, AnotherAimAdmin) 

我的模型看起來是這樣的：

class AnotherAim(models.Model): 

    email=models.EmailField(null=True) 
    name= models.CharField(max_length=100) 
    sur_name= models.CharField(max_length=100) 
    code = models.OneToOneField(Aim,null=True) 



class Aim(models.Model): 

    code = models.CharField(max_length=5, null=False) 
    .... 
    .... 

Answer 1

我會組織我的模型作爲這樣的：

class Aim(models.Model): 
    code = models.CharField(max_length=5) 

    def __unicode__(self): 
     return self.code 

class AnotherAim(models.Model): 
    email = models.EmailField(blank=True) 
    name = models.CharField(max_length=100) 
    sur_name = models.CharField(max_length=100) 
    aim = models.OneToOneField(Aim, null=True) 

    def __unicode__(self): 
     return self.name # or another field