如何更改 Django 管理中的外键显示文本? [英] How to change ForeignKey display text in the Django Admin?
问题描述
如何在选择 ForeignKey 字段时更改 字段中的显示文本?
How can I change the display text in a <select> field while selecting a field which is a ForeignKey?
我不仅需要显示 ForeignKey 的名称，还需要显示其父项的名称.
I need to display not only the name of ForeignKey, but also the name of it's parent.
推荐答案
如果你想让它只在 admin 中生效，而不是全局生效，那么你可以创建一个自定义的 ModelChoiceField 子类，使用那个在自定义 ModelForm 中，然后设置相关的管理类以使用您的自定义表单.使用一个例子，它具有@Enrique 使用的 Person 模型的外键:
If you want it to take effect only in admin, and not globally, then you could create a custom ModelChoiceField subclass, use that in a custom ModelForm and then set the relevant admin class to use your customized form.
Using an example which has a ForeignKey to the Person model used by @Enrique:
class Invoice(models.Model):
person = models.ForeignKey(Person)
....
class InvoiceAdmin(admin.ModelAdmin):
form = MyInvoiceAdminForm
class MyInvoiceAdminForm(forms.ModelForm):
person = CustomModelChoiceField(queryset=Person.objects.all())
class Meta:
model = Invoice
class CustomModelChoiceField(forms.ModelChoiceField):
def label_from_instance(self, obj):
return "%s %s" % (obj.first_name, obj.last_name)
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