python - Django import/export : Admin interface "TypeError at/"

Question

我正在尝试弄清楚如何使用 Django Import-Export，

https://pypi.python.org/pypi/django-import-export

通过阅读文档

https://django-import-export.readthedocs.org/en/latest/getting_started.html#admin-integration

管理集成:

示例代码和随后生成的照片之间的差距，对于我的基本 python 知识来说似乎是巨大的。

我已经成功编写了以下代码:

geographical_system/models.py:

from django.db import models
from django.utils.translation import ugettext_lazy as _

class Regional_Units(models.Model):
    regional_unit = models.CharField(
        max_length=64, verbose_name=_(u'Regional Units'))

    def __unicode__(self):
        return u'%s' % (self.regional_unit)

geographical_system/resources.py:

from import_export import resources
from geographical_system.models import Regional_Units
from import_export.admin import ImportExportModelAdmin


class Regional_Units_Resource(resources.ModelResource):

    class Meta(object):
        model = Regional_Units


class Regional_Units_Resource_Admin(ImportExportModelAdmin):
    resouce_class = Regional_Units_Resource # Why originally commented out?
    #pass #Why pass?

geographical_system/admin.py:

from django.contrib import admin
from geographical_system.models import Regional_Units
from geographical_system.resources import Regional_Units_Resource_Admin


admin.site.register(Regional_Units)
admin.site.register(Regional_Units_Resource_Admin)  # **Improvising here**, otherwise nothing would happen

结果错误

当然是我的即兴admin.site.register(Regional_Units_Resource_Admin)导致访问时出现如下信息

http://127.0.0.1:8000/admin/geographical_system/regional_units/

TypeError at /admin/geographical_system/regional_units/

'RenameBaseModelAdminMethods' object is not iterable

Request Method:     GET
Request URL:    http://127.0.0.1:8000/admin/geographical_system/regional_units/
Django Version:     1.6
Exception Type:     TypeError
Exception Value:    

'RenameBaseModelAdminMethods' object is not iterable

Exception Location:     /home/flyer/.virtualenvs/rara/lib/python2.7/site-packages/django/contrib/admin/sites.py in register, line 71
Python Executable:  /home/flyer/.virtualenvs/rara/bin/python
Python Version:     2.7.5
Python Path:    

['/home/flyer/02/rara',
 '/home/flyer/.virtualenvs/rara/lib64/python27.zip',
 '/home/flyer/.virtualenvs/rara/lib64/python2.7',
 '/home/flyer/.virtualenvs/rara/lib64/python2.7/plat-linux2',
 '/home/flyer/.virtualenvs/rara/lib64/python2.7/lib-tk',
 '/home/flyer/.virtualenvs/rara/lib64/python2.7/lib-old',
 '/home/flyer/.virtualenvs/rara/lib64/python2.7/lib-dynload',
 '/usr/lib64/python2.7',
 '/usr/lib/python2.7',
 '/usr/lib64/python2.7/lib-tk',
 '/home/flyer/.virtualenvs/rara/lib/python2.7/site-packages']

问题

• 为什么会出现此错误？
• 我怎么能最终进入这个启用了导入和导出选项的漂亮管理界面？

Answer 1

虽然我不熟悉这个特定的应用程序，但你应该做的是替换

admin.site.register(Regional_Units)
admin.site.register(Regional_Units_Resource_Admin)

与

admin.site.register(Regional_Units, Regional_Units_Resource_Admin)

如果其他一切正常，它应该可以工作。 admin register() 方法需要模型作为第一个参数，并且(可选)一个 ModelAdmin 类(或子类)作为第二个参数。

旁注:由于您刚刚开始使用 python/django，请尝试遵守约定。这意味着不要在类名称中的单词之间使用 _(即 RegionalUnits 是一个合适的名称)并尝试将 ModelAdmin 声明放在 admin.py 模块中(即 RegionalUnitsResourceAdmin 应在 admin.py 中声明而不是导入)。