Django-Haystack 给出属性错误？

Question

我正在尝试将 Haystack 和 Whoosh 与我的 Django 应用程序结合使用。我按照 Haystack 文档上的步骤操作，但在搜索时出现此错误

AttributeError at /search/
'module' object has no attribute 'get_model'

search_indexes.py -

import datetime
from haystack import indexes
from movies.models import Movie


class MovieIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True)
    title = indexes.CharField(model_attr='title')

    def get_model(self):
        return Movie

    def index_queryset(self, using=None):
        """Used when the entire index for model is updated."""
        return self.get_model().objects.all()

我在任何地方都找不到关于这个错误的帮助，我做错了什么？

堆栈跟踪 -

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/search/?q=The+Revenant&models=movies.movie

Django Version: 1.9.1
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'whoosh',
 'haystack',
 'registration',
 'crispy_forms',
 'movies',
 'mptt')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware')



Traceback:

File "/home/dr_sherlock/movienalyse/virmovienalyse/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  149.                     response = self.process_exception_by_middleware(e, request)

File "/home/dr_sherlock/movienalyse/virmovienalyse/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  147.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/home/dr_sherlock/movienalyse/virmovienalyse/local/lib/python2.7/site-packages/haystack/views.py" in __call__
  51.         self.results = self.get_results()

File "/home/dr_sherlock/movienalyse/virmovienalyse/local/lib/python2.7/site-packages/haystack/views.py" in get_results
  91.         return self.form.search()

File "/home/dr_sherlock/movienalyse/virmovienalyse/local/lib/python2.7/site-packages/haystack/forms.py" in search
  116.         return sqs.models(*self.get_models())

File "/home/dr_sherlock/movienalyse/virmovienalyse/local/lib/python2.7/site-packages/haystack/forms.py" in get_models
  110.                 search_models.append(models.get_model(*model.split('.')))

Exception Type: AttributeError at /search/
Exception Value: 'module' object has no attribute 'get_model'

Python 2.7.6
Django 1.9.1
干草堆 2.4.1
呼呼 2.7.0

Answer 1

在我看来，这像是 Haystack 和 Django 版本之间的兼容性问题。 Django 最近重新设计了 get_model 系统（我认为在 1.9 中），所以如果你升级的是 Django 而不是 Haystack - 或者 vice-versa - 这可能是问题所在。

我猜你的索引文件中的 get_model() 引用是一个潜在的 red-herring，问题出在 Haystack 内部，因为它无法在预期的位置找到该方法到.

Answer 2

我在 haystack\forms.py 中替换了以下行：

if self.is_valid():
        for model in self.cleaned_data['models']:
            search_models.append(models.get_model(*model.split('.')))

通过这个：

if self.is_valid():
        for model in self.cleaned_data['models']:
            model_info = model.split('.')
            search_models.append(apps.get_model(app_label=model_info[0], model_name=model_info[1]))

随着导入

from django.apps import apps

我发现只需按照收到的错误调用堆栈进行更改即可更改行。对你来说，它似乎在 "/home/dr_sherlock/movienalyse/virmovienalyse/local/lib/python2.7/site-packages/haystack/forms.py"

编辑：获取最新版本的 haystack 解决了问题

pip uninstall django-haystack
pip install git+https://github.com/django-haystack/django-haystack.git

来自

Answer 3

只需在您的搜索索引中定义一个新方法class (search_indexes.py)

from .models import mymodel
from haystack import indexes
class MyIndex(indexes.SearchIndex,indexes.Indexable):

     def get_model(self):
        return mymodel

Django-Haystack 给出属性错误？

Django-Haystack giving attribute error?

python

django

django-haystack

whoosh