在 Django ModelAdmin 中显示继承的字段

Question

我有 models.py 文件如下。

from django.db import models

class UpdateCreateModelMixin:
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)

class Question(UpdateCreateModelMixin, models.Model):
    name = models.CharField(max_length=100)
    code = ...
    ... (Some more field)

如何在 Django 模型管理中显示更新、创建的字段，我的 admin.py 文件是

from django.contrib import admin
from .models import Question

class QuestionAdmin(admin.ModelAdmin):
    list_display = ('name', 'created', 'updated')
    list_filter = ('created')

admin.site.register(Question, QuestionAdmin)

对于上述 admin.py 文件，我收到此错误。

<class 'assignments.admin.QuestionAdmin'>: (admin.E116) The value of 'list_filter[0]' refers to 'created', which does not refer to a Field.

那么，我如何在 django 模型管理中添加一个继承的字段，为什么上面的操作失败了？

Answer 1

class UpdateCreateModelMixin(models.Model):
    class Meta:
        abstract = True
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)

class Question(UpdateCreateModelMixin):
    name = models.CharField(max_length=100)
    code = ...
    ... (Some more field)

在 Django ModelAdmin 中显示继承的字段

Display an inherited Field in Django ModelAdmin

python

django

django-admin