steps_to_reproduce.txt

# At a shell...
mkdir whooshtest
cd whooshtest
virtualenv --no-site-packages .
. bin/activate
./bin/pip install -E . django
./bin/pip install -E . django-haystack
./bin/pip install -E . whoosh==1.2.6

./bin/django-admin.py startproject whooshtest
cd whooshtest
chmod 755 manage.py

# Edit settings.py, match these:
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': 'whooshtest.db',                      # Or path to database file if using sqlite3.
        'USER': '',                      # Not used with sqlite3.
        'PASSWORD': '',                  # Not used with sqlite3.
        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
    }
}

# Later in settings.py...
INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    # Uncomment the next line to enable the admin:
    # 'django.contrib.admin',
    # Uncomment the next line to enable admin documentation:
    # 'django.contrib.admindocs',
    'haystack',
    'appy',
)

import os
HAYSTACK_SEARCH_ENGINE = 'whoosh'
HAYSTACK_WHOOSH_PATH = os.path.join(os.path.dirname(__file__), 'the_index')
HAYSTACK_SITECONF = 'search_sites'

# At the shell
./manage.py startapp appy

# In search_sites.py
import haystack
haystack.autodiscover()

# In appy/models.py
import datetime
from django.db import models


class Grumble(models.Model):
    title = models.CharField(max_length=64)
    views = models.PositiveIntegerField(default=0)
    created = models.DateTimeField(blank=True, null=True, default=datetime.datetime.now)
    
    def __unicode__(self):
        return self.title

# In appy/search_indexes.py
import haystack
from haystack import indexes
from models import Grumble


class GrumbleIndex(indexes.SearchIndex):
    text = indexes.CharField(document=True, model_attr='title')
    title = indexes.CharField(model_attr='title')
    views = indexes.IntegerField(model_attr='views')
    created = indexes.DateTimeField(model_attr='created')


haystack.site.register(Grumble, GrumbleIndex)

# Sync it.
./manage.py syncdb

# Drop in some fixture/model data.

# Build the index.
./manage.py rebuild_index --noinput --verbosity=2

# Explore at a Django shell.
./manage.py shell

>>> from haystack.query import SearchQuerySet
>>> SearchQuerySet().filter(views__gte=3)
[<got two results back here (out of three)>]
>>> SearchQuerySet().filter(views__lt=3)
[<got one result back here>]