python - Django Admin TabularInline 提示缺少字段

Question

我有以下模型和 TabularInline 子类:

class SomeModel(models.Model):
    name = models.CharField(max_length=50)

class SomeModelInline(admin.TabularInline):
    model = SomeModel

class SomeOtherModelAdmin(admin.ModelAdmin):
    inlines = [SomeModelInline]

如果没有显式指定 TabularInline 的字段，Django 的管理会显示字段“id”和“name”。然而，当我尝试这样做时:

class SomeModelInline(admin.TabularInline):
    model = SomeModel
    fields  ['id','name']

Django 抛出 ImproperlyConfigured 异常:

'SomeModelInline.fields' refers to field 'id' that is missing from the form.

这是怎么回事？为什么我不能显式指定 id，即使 Django 显然能够访问它？

Answer 1

Id 不可编辑，默认情况下内联显示可编辑字段，但您也可以显示不可编辑字段

来自django docs

fields can contain values defined in ModelAdmin.readonly_fields to be displayed as read-only.

因此，首先将“id”添加到 readonly_fields，然后将其添加到 fields