Django Haystack + ElasticSearch Внедрение в ОС Windows env

Question

Я разрабатываю проект с HayStack + ElasticSearch для поисковой системы, и мне трудно найти его. Я модели установки и Inexing для моделей, как показано ниже:

models.py:

from django.db import models 
from django.core.urlresolvers import reverse 

class Product(models.Model): 
    title = models.CharField(max_length=500) 
    description = models.TextField(blank=True, null=True) 
    image = models.ImageField(upload_to='products/') 
    price = models.DecimalField(max_digits=20, decimal_places=2) 
    sku = models.CharField(null=True, max_length=100) 
    url = models.URLField(blank=True) 
    displayed_category = models.CharField(null=True, max_length=500) 
    categories = models.ManyToManyField('Category', blank=True) 
    default = models.ForeignKey(
     'Category', related_name='default_category', null=True, blank=True 
    ) 

    def __unicode__(self): 
     return self.title 

    def get_absolute_url(self): 
     return reverse("product_detail", kwargs={"pk": self.pk}) 


class Category(models.Model): 
    title = models.CharField(max_length=120, unique=True) 
    slug = models.SlugField(unique=True) 
    description = models.TextField(null=True, blank=True) 
    timestamp = models.DateTimeField(auto_now=False, auto_now_add=True) 

    def __unicode__(self): 
     return self.title 

views.py:

from datetime import date 
from .models import Product 
from django.views.generic.list import ListView 
from django.views.generic.detail import DetailView 
from django.core.paginator import Paginator 
from haystack.generic_views import SearchView 


class ProductListView(ListView): 
    model = Product 
    paginate_by = 10 



class ProductDetailView(DetailView): 
    model = Product 

class ProductSearchView(SearchView): 
    model = Product 
    def get_queryset(self): 
     queryset = super(ProductSearchView, self).get_queryset() 
     # further filter queryset based on some set of criteria 
     return queryset 

    def get_context_data(self, *args, **kwargs): 
     context = super(ProductSearchView, self).get_context_data(*args, **kwargs) 
     context["query"] = self.request.GET.get("q") 
     return context 

search_index.py:

from haystack import indexes 
from .models import Product 


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

    def prepare_title(self, obj): 
     return obj.title or '' 

    def get_model(self): 
     return Product 

Проект urls.py:

from django.conf.urls import include, url 
from django.contrib import admin 
from django.conf import settings 
from django.conf.urls.static import static 
from products.views import ProductSearchView 

urlpatterns = [ 
    url(r'^$', 'shopsy.views.home', name='home'), 
    url(r'^admin/', include(admin.site.urls)), 
    url(r'^products/', include('products.urls')), 
    url(r'^search/', ProductSearchView.as_view()), 
    url(r'search/$', include('haystack.urls')), 
] 

if settings.DEBUG: 
    urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT) 
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) 

App urls.py:

from django.conf.urls import url 
from .views import ProductListView, ProductDetailView, ProductSearchView 

urlpatterns = [ 
    url(r'^$', ProductListView.as_view(), name='products'), 
    url(r'^(?P<pk>\d+)/$', ProductDetailView.as_view(), name='product_detail'), 

] 

settings.py:

HAYSTACK_CONNECTIONS = { 
    'default': { 
     'ENGINE': 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine', 
     'URL': 'http://127.0.0.1:9200/', 
     'INDEX_NAME': 'haystack', 
    }, 

} 
HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor' 
INTERNAL_IPS = ('127.0.0.1',) 

При всех указанных выше параметров при запуске "manage.py rebuild_index" я получаю следующее сообщение об ошибке.

Removing all documents from your index because you said so. 
Failed to clear Elasticsearch index: ConnectionError(<urllib3.connection.HTTPCon 
nection object at 0x03C12850>: Failed to establish a new connection: [Errno 1006 
1] No connection could be made because the target machine actively refused it) c 
aused by: NewConnectionError(<urllib3.connection.HTTPConnection object at 0x03C1 
2850>: Failed to establish a new connection: [Errno 10061] No connection could b 
e made because the target machine actively refused it) 
Traceback (most recent call last): 
    File "C:\Users\Shazia\Desktop\working directtory\searchEngin\lib\site-packa 
ges\haystack\backends\elasticsearch_backend.py", line 234, in clear 
    self.conn.indices.delete(index=self.index_name, ignore=404) 
    File "C:\Users\Shazia\Desktop\working directtory\searchEngin\lib\site-packa 
ges\elasticsearch\client\utils.py", line 69, in _wrapped 
    return func(*args, params=params, **kwargs) 
    File "C:\Users\Shazia\Desktop\working directtory\searchEngin\lib\site-packa 
ges\elasticsearch\client\indices.py", line 198, in delete 
    params=params) 

Пожалуйста, сообщите, если я что-то делаю или все неправильно.

Answer 1

Если сервер ES не отвечает это может быть по нескольким причинам:

1. Сервер ES не запускается
2. Сервер ES не настроен слушать на локальный или 127.0.0.1
3. ES-сервер не установлен вообще.

В вашем случае это был третий вариант. Вам просто нужно установить Elasticsearch as explained in the Django Haystack docs, запустить его, а затем он будет работать.