Django-Haystack: the NoneType object does not have the _default_manager attribute

Question

I am trying to add a haystack search to my base.html to include it globally on my site. These are errors though when I submit a search

I get:

Django-Haystack: the NoneType object does not have the _default_manager attribute

I added it to INSTALLED_APPS and my urls.py ../ manage.py rebuild_index works fine.

models.py:

class Site(models.Model): site_name = models.CharField(max_length=100, blank=False, null=False) site_manager = models.CharField(max_length=100, blank=False, null=False) address_1 = models.CharField(max_length=100, blank=False, null=False) address_2 = models.CharField(max_length=100, blank=True, null=True) address_3 = models.CharField(max_length=100, blank=True, null=True) town_city = models.CharField(max_length=100, verbose_name='Town/City') county = models.CharField(max_length=100, blank=False, null=False) postcode = models.CharField(max_length=100, blank=False, null=False) region = models.CharField(max_length=100, blank=True, null=True) tel = models.CharField(max_length=100, blank=False, null=False) email = models.EmailField(max_length=100, blank=False, null=False) creation = models.DateField(auto_now_add=True) last_modified = models.DateField(auto_now=True) def __unicode__(self): return self.site_name 

SiteIndex.py:

 class SiteIndex(indexes.SearchIndex, indexes.Indexable): text = indexes.CharField(document=True, use_template=True) site_name = indexes.CharField(model_attr='site_name') site_manager = indexes.CharField(model_attr='site_manager') address_1 = indexes.CharField(model_attr='address_1') address_2 = indexes.CharField(model_attr='address_2') address_3 = indexes.CharField(model_attr='address_3') town_city = indexes.CharField(model_attr='town_city') county = indexes.CharField(model_attr='county') postcode = indexes.CharField(model_attr='postcode') region = indexes.CharField(model_attr='region') tel = indexes.CharField(model_attr='tel') email = indexes.CharField(model_attr='email') creation = indexes.DateField(model_attr='creation') last_modified = indexes.DateField(model_attr='last_modified') def get_model(self): return Site def index_queryset(self, using=None): return self.get_model().objects.all() 

site_text.txt:

 {{ object.site_name }} {{ object.site_manager }} # ect 

base.html

 <form action="/search/" method="get"> <input type="text" name="q"> <input type="submit" value="Search"> </form> 

UPDATE:

I noticed that if I upgrade to DJango 1.8. It works. Is there a problem with other versions of django uptodate?

Answer 1

The error is because your version of Haystack does not support your version of Django. You need to upgrade django-haystack version if you want to use Django 1.9+

Support for Django 1.9 was added in Haystack 2.5 , and support for Django 1.10 was added in Haystack 2.5.1 .

Answer 2

You can install the latest version from github (as in the alarm answer), but using pip:

 pip uninstall django-haystack pip install -e git+https://github.com/django-haystack/django-haystack.git#egg=django-haystack 

Answer 3

I worked on this by installing the latest version from github (currently 2.5.dev0):

 pip uninstall django-haystack git clone https://github.com/django-haystack/django-haystack cd django-haystack python setup.py install