Ray*_*ger 8 django django-models django-admin
我得到了这些模型：
@python_2_unicode_compatible
class Media(models.Model):
the_image = FilerImageField(null=True)
title = models.CharField(verbose_name="Title", max_length=255, null=True, blank=True)
alt_text = models.CharField(verbose_name="Alt Text", max_length=255, null=True, blank=True)
created = models.DateTimeField(default=now)
modified = models.DateTimeField(editable=True, auto_now=True)
product_image_gallery = models.ForeignKey('Product', related_name="product_image_gallery", null=True, blank=True, verbose_name="Product's Image Gallery")
def __str__(self):
return self.the_image.__str__()
@python_2_unicode_compatible
class Product( models.Model ):
name = models.CharField(verbose_name="Name", max_length=255)
slug = models.SlugField(verbose_name="Slug", max_length=255, unique=True)
price = models.PositiveIntegerField(verbose_name='Price', null=True, blank=True)
sale_price = models.PositiveIntegerField(verbose_name="Sale Price", null=True, blank=True)
sku = models.CharField(verbose_name="SKU", max_length=255)
def __str__(self):
return "%s" % (self.sku, )
我有这些管理对象：
class Media_Admin(admin.ModelAdmin):
search_fields = ['id', 'the_image', 'title', 'product_image_gallery__sku']
list_display = ['the_image', 'image_tag', 'title', 'product_image_gallery', 'created']
readonly_fields = ('image_tag',)
fieldsets = [
( "Data", {
'classes': ('grp-collapse grp-open',),
'fields': ['the_image', 'title', 'alt_text']}),
]
admin.site.register(Media, Media_Admin)
工作list_display正常，但搜索总是给出错误：
Related Field got invalid lookup: icontains
我不知道我做错了什么，我对 SKU 使用双下划线product_image_gallery__sku，但它仍然给出错误，我尝试过product_image_gallery它也是一个错误。
我的踪迹：
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/admin/mooimom_id/media/?q=A7005
Django Version: 1.10.7
Python Version: 2.7.13
Installed Applications:
['corsheaders',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.humanize',
'tinymce',
'easy_thumbnails',
'filer',
'mptt',
'storages',
'django_extensions']
Installed Middleware:
['corsheaders.middleware.CorsMiddleware',
'htmlmin.middleware.HtmlMinifyMiddleware',
'htmlmin.middleware.MarkRequestMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'mooimom_django.mooimom_middleware.SimpleMiddleware',
'ratelimitbackend.middleware.RateLimitMiddleware']
Traceback:
File "C:\Python27\lib\site-packages\django\core\handlers\exception.py" in inner
42. response = get_response(request)
File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Python27\lib\site-packages\django\contrib\admin\options.py" in wrapper
544. return self.admin_site.admin_view(view)(*args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in _wrapped_view
149. response = view_func(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\views\decorators\cache.py" in _wrapped_view_func
57. response = view_func(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\contrib\admin\sites.py" in inner
211. return view(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in _wrapper
67. return bound_func(*args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in _wrapped_view
149. response = view_func(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in bound_func
63. return func.__get__(self, type(self))(*args2, **kwargs2)
File "C:\Python27\lib\site-packages\django\contrib\admin\options.py" in changelist_view
1543. self.list_max_show_all, self.list_editable, self,
File "C:\Python27\lib\site-packages\django\contrib\admin\views\main.py" in __init__
78. self.queryset = self.get_queryset(request)
File "C:\Python27\lib\site-packages\django\contrib\admin\views\main.py" in get_queryset
346. qs, search_use_distinct = self.model_admin.get_search_results(request, qs, self.query)
File "C:\Python27\lib\site-packages\django\contrib\admin\options.py" in get_search_results
905. queryset = queryset.filter(reduce(operator.or_, or_queries))
File "C:\Python27\lib\site-packages\django\db\models\query.py" in filter
796. return self._filter_or_exclude(False, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\db\models\query.py" in _filter_or_exclude
814. clone.query.add_q(Q(*args, **kwargs))
File "C:\Python27\lib\site-packages\django\db\models\sql\query.py" in add_q
1227. clause, _ = self._add_q(q_object, self.used_aliases)
File "C:\Python27\lib\site-packages\django\db\models\sql\query.py" in _add_q
1247. current_negated, allow_joins, split_subq)
File "C:\Python27\lib\site-packages\django\db\models\sql\query.py" in _add_q
1253. allow_joins=allow_joins, split_subq=split_subq,
File "C:\Python27\lib\site-packages\django\db\models\sql\query.py" in build_filter
1178. lookup_class = field.get_lookup(lookups[0])
File "C:\Python27\lib\site-packages\django\db\models\fields\related.py" in get_lookup
694. raise TypeError('Related Field got invalid lookup: %s' % lookup_name)
Exception Type: TypeError at /admin/mooimom_id/media/
Exception Value: Related Field got invalid lookup: icontains
原来错误是因为
search_fields = ['id', 'the_image', 'title', 'product_image_gallery__sku']
“the_image”是一个 FilerImageField 对象，它会导致错误。
当我把它变成：
search_fields = ['id', 'title', 'product_image_gallery__sku']