在管理中订购django mptt外键不起作用

我使用django mptt创建类别模型，然后将其用作文档模型的外键。类别管理工作正常，类别按预期的树顺序显示。但是，我在管理中对文档模型的排序有两个问题

管理员列表中的文档是按id顺序而不是类别顺序列出的 编辑屏幕中类别的下拉列表按类别id顺序列出。请注意，出于另一个原因，我将抽象类用于category

为什么我在模型中指定的顺序被忽略

Models.py

class Category(MPTTModel):
 parent = models.ForeignKey('self', related_name="children")
 name = models.CharField(max_length=100)


  class Meta:
    abstract = True
    ordering = ('tree_id', 'lft')

  class MPTTMeta:
    ordering = ('tree_id', 'lft')
    order_insertion_by = ['name',]

class CategoryAll(Category):

  class Meta:
    verbose_name = 'Category for Documents'
    verbose_name_plural =  'Categories for Documents'


class Document(models.Model):
  title = models.CharField(max_length=200)
  file = models.FileField(upload_to='uploads/library/all', blank=True, null=True)
  category = models.ForeignKey(CategoryAll)

  class Meta:
    ordering = ('category__tree_id', 'category__lft', 'title')

class Category(MPTTModel):
 parent = models.ForeignKey('self', related_name="children")
 name = models.CharField(max_length=100)


  class Meta:
    abstract = True

  class MPTTMeta:
    order_insertion_by = ['name',]

class CategoryAll(Category):

  class Meta:
    verbose_name = 'Category for Documents'
    verbose_name_plural =  'Categories for Documents'
    ordering = ('lft',)

class Document(models.Model):
  title = models.CharField(max_length=200)
  file = models.FileField(upload_to='uploads/library/all', blank=True, null=True)
  category = models.ForeignKey(CategoryAll)

  class Meta:
    ordering = ('category__tree_id', 'category__lft', 'title')

管理员

class DocAdmin(admin.ModelAdmin):

  list_display = ('title', 'author', 'category')
  list_filter = ('author','category')
  ordering = ('category__tree_id', 'category__lft', 'title')

class DocAdmin(admin.ModelAdmin):

  list_display = ('title', 'author', 'category')
  list_filter = ('author','category')
  ordering = ('category__lft',)

更新修复：

Models.py

class Category(MPTTModel):
 parent = models.ForeignKey('self', related_name="children")
 name = models.CharField(max_length=100)


  class Meta:
    abstract = True
    ordering = ('tree_id', 'lft')

  class MPTTMeta:
    ordering = ('tree_id', 'lft')
    order_insertion_by = ['name',]

class CategoryAll(Category):

  class Meta:
    verbose_name = 'Category for Documents'
    verbose_name_plural =  'Categories for Documents'


class Document(models.Model):
  title = models.CharField(max_length=200)
  file = models.FileField(upload_to='uploads/library/all', blank=True, null=True)
  category = models.ForeignKey(CategoryAll)

  class Meta:
    ordering = ('category__tree_id', 'category__lft', 'title')

class Category(MPTTModel):
 parent = models.ForeignKey('self', related_name="children")
 name = models.CharField(max_length=100)


  class Meta:
    abstract = True

  class MPTTMeta:
    order_insertion_by = ['name',]

class CategoryAll(Category):

  class Meta:
    verbose_name = 'Category for Documents'
    verbose_name_plural =  'Categories for Documents'
    ordering = ('lft',)

class Document(models.Model):
  title = models.CharField(max_length=200)
  file = models.FileField(upload_to='uploads/library/all', blank=True, null=True)
  category = models.ForeignKey(CategoryAll)

  class Meta:
    ordering = ('category__tree_id', 'category__lft', 'title')

管理员

class DocAdmin(admin.ModelAdmin):

  list_display = ('title', 'author', 'category')
  list_filter = ('author','category')
  ordering = ('category__tree_id', 'category__lft', 'title')

class DocAdmin(admin.ModelAdmin):

  list_display = ('title', 'author', 'category')
  list_filter = ('author','category')
  ordering = ('category__lft',)

---

好-找到了一些持久的答案：

为什么显示列表顺序不正确？因为它只使用第一个字段：

ModelAdmin.ordering将排序设置为 指定对象列表的显示方式 在Django管理视图中排序。 这应该是列表中的列表或元组 与模型的订购格式相同 参数

如果没有提供，Django 管理员将使用模型的默认值 订购

注：Django只会尊重第一个 列表/元组中的元素；还有其他的吗 将被忽略

---

为什么选择下拉列表的顺序不正确？因为我必须在子类中有一个顺序，而不仅仅是抽象模型。

没有尝试过，只需阅读文档：

在Django 1.4中更改：Django管理员尊重列表/元组中的所有元素；在1.4版本之前，只有第一个版本受到尊重。