如何在Django admin的“列表显示”中显示外键和多对多字段？

如何在Django admin中显示外键和多对多字段

型号。py:

class Book(models.Model):
    title = models.CharField(max_length=150, blank=False)

class Character(models.Model):
    book = models.ForeignKey(Book, on_delete=models.CASCADE, related_name='character')
    name = models.CharField(max_length=50)

class Author(models.Model):
    book = models.ManyToManyField(Book, related_name='author')
    name = models.CharField(max_length=50)

class BookAdmin(admin.ModelAdmin):
    list_display = ('title', 'characters', 'authors')

    def characters(self, obj):
        ???

    def authors(self, obj):
        ???

admin.py:

class Book(models.Model):
    title = models.CharField(max_length=150, blank=False)

class Character(models.Model):
    book = models.ForeignKey(Book, on_delete=models.CASCADE, related_name='character')
    name = models.CharField(max_length=50)

class Author(models.Model):
    book = models.ManyToManyField(Book, related_name='author')
    name = models.CharField(max_length=50)

class BookAdmin(admin.ModelAdmin):
    list_display = ('title', 'characters', 'authors')

    def characters(self, obj):
        ???

    def authors(self, obj):
        ???

---

您可以获取相关的

字符

s/

作者

s，然后在逗号分隔的列表中加入名称：

class BookAdmin(admin.ModelAdmin):
    list_display = ('title', 'characters', 'authors')

    def characters(self, obj):
        return ', '.join([c.name for c in obj.character.all()])

    def authors(self, obj):
        return ', '.join([a.name for a in obj.author.all()])

---

由于

related\u name

是相反的关系，并且可以有多个

字符

s/

作者

s，因此将这些字符命名为复数是有意义的。

如何显示？用逗号分隔的列表还是什么？