如何在DJango管理界面中显示ForeignKey反向查找列表？

Question

我有几个型号:

class Customer(models.Model):
    customer_name = models.CharField(max_length=200)

    def __unicode__(self):
        return self.customer_name

    class Meta:
        ordering = ('customer_name',)

class Unit(models.Model):
    unit_number = models.IntegerField()
    rentable = models.BooleanField()
    owner = models.ForeignKey(Customer, related_name='units', blank=True, null=True)

    def __unicode__(self):
        return str(self.unit_number)

    class Meta:
        ordering = ('unit_number',)

当我添加一个单元时,我的管理界面工作正常(我可以选择将其分配给哪个客户)但是当我在DJango管理界面中创建/编辑客户时,它没有列出任何单位可供选择从.如何在该部分中启用查找以匹配创建/编辑客户区域中的查找？

Answer 1

默认情况下,ModelAdmin只允许您管理模型"本身",而不是相关模型.要编辑相关的单元模型,您需要定义"InlineModelAdmin" - 例如admin.TabularInline - 并将其附加到您的CustomerAdmin.

https://docs.djangoproject.com/en/dev/ref/contrib/admin/#inlinemodeladmin-objects

例如,在您的admin.py中:

from django.contrib import admin
from models import Customer, Unit

class UnitInline(admin.TabularInline):
    model = Unit

class CustomerAdmin(admin.ModelAdmin):
    inlines = [
        UnitInline,
    ]
admin.site.register(Customer, CustomerAdmin)