Question

SelectionChanged

    AttributeError at /search/
    'NoneType' object has no attribute '_default_manager'

    Request Method: GET
    Request URL:    http://127.0.0.1:8000/search/?q=desktop
    Django Version: 1.9
    Exception Type: AttributeError
    Exception Value:'NoneType' object has no attribute '_default_manager'
    Exception Location: /home/ankit/venv/django/lib/python3.4/site-packages/haystack/query.py in post_process_results, line 219
    Python Executable:  /home/ankit/venv/django/bin/python
    Python Version: 3.4.3
    Python Path:    ['/home/ankit/venv/django/p2',
                     '/home/ankit/venv/django/lib/python3.4',
                     '/home/ankit/venv/django/lib/python3.4/plat-x86_64-linux-gnu',
                     '/home/ankit/venv/django/lib/python3.4/lib-dynload',
                     '/usr/lib/python3.4',
                     '/usr/lib/python3.4/plat-x86_64-linux-gnu',
                     '/home/ankit/venv/django/lib/python3.4/site-packages']
    Server time:    Sun, 27 Dec 2015 10:29:28 +0000

我的search_indexes.py

import datetime
from haystack import indexes
from inventory.models import Item

class ItemIndex(indexes.SearchIndex, indexes.Indexable):
text = indexes.CharField(document=True, use_template=True)
pub_date = indexes.DateTimeField(model_attr='pub_date')

content_auto = indexes.EdgeNgramField(model_attr='title')

def get_model(self):
    return Item

def index_queryset(self, using=None):
    return self.get_model().objects.all()

我的settings.py文件

HAYSTACK_CONNECTIONS = {
    'default': {
    'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',
    'PATH': os.path.join(os.path.dirname(__file__), 'whoosh_index'),
    },
}

Answer 1

django.db.model.get_model在1.9中不再可用，因此在调用None时会返回django.db.models.get_model，但在最近的提交中（从1月3日起）{{1} }}用于在使用Django 1.7或更高版本时使用utils.app_loading.py，否则使用旧的django.apps.apps.get_model。

因此，最好升级到最新的开发版django.db.models._get_models。

我正在使用django haystack与whoosh，但在搜索栏中输入一些搜索查询后出现一些错误，下面是描述

1 个答案: