Question

我在我的Django应用程序中使用ElasticSearch-DSL搜索产品。我能够获取结果并将其放在模板（search.html）中，并且按预期方式工作。

我做了一些研究，但不知道如何在模板中添加多面搜索以及如何实现多面搜索。

我的documents.py

from django_elasticsearch_dsl import Document
from django_elasticsearch_dsl.registries import registry
from products.models import Products
from elasticsearch_dsl import FacetedSearch, TermsFacet, DateHistogramFacet


@registry.register_document
class CarDocument(Document):
    class Index:
        # Name of the Elasticsearch index
        name = 'cars'
        # See Elasticsearch Indices API reference for available settings
        settings = {'number_of_shards': 1,
                    'number_of_replicas': 1}



    class Django:
        model = Products # The model associated with this Document

        # The fields of the model you want to be indexed in Elasticsearch
        fields = [
            'body_id',
            'product_make',
            'model_name',
            'product_id',
            'model_id', 
            'variant',
            'transmission',
            'bodystyle',
            'yom',
            'status',
            'ex_showroom',
            'registration_fees',
            'insurance',
            'handling_charges',
            'fastag',
            'on_road_price',
            'min_price',
            'max_price',
            'rating',

        ]

        # Ignore auto updating of Elasticsearch when a model is saved
        # or deleted:
        # ignore_signals = True

        # Don't perform an index refresh after every update (overrides global setting):
        # auto_refresh = False

        # Paginate the django queryset used to populate the index with the specified size
        # (by default it uses the database driver's default setting)
        # queryset_pagination = 5000

和我的views.py代码如下：

from django.shortcuts import render
from elasticsearch_dsl import Q
from elasticsearch_dsl.query import MultiMatch
# Create your views here.
from search.documents import CarDocument
from products.models import Products
from django.core.paginator import (
    Paginator, Page, EmptyPage, PageNotAnInteger
)
from django.utils.functional import LazyObject

def search(request):
   q = request.GET.get('q')
   if q:
       #cars = CarDocument.search().query("match", model_name=q)
      q = request.GET.get('q', None)
      query1 = MultiMatch(query=q,  fields=['product_make', 'bodystyle','model_name','variant','transmission','yom'],fuzziness='AUTO')

      s = CarDocument.search().query(query1)
      total = s.count()
      s= s[0:total]
      cars = s.execute()

      paginator = Paginator(cars, 100)
      page = request.GET.get('page')
      cars = paginator.get_page(page)
   else:
      cars = ''


   return render(request, 'search/search.html', {'cars': cars})

def product_detail(request,*args, **kwargs):

    return render(request, 'product_details.html', {})

我的urls.py

urlpatterns = [
    url(r'^$', home_view, name='home'),
    url(r'^home/', home_view, name='home'),
    url(r'^search/', search, name='search'),
    url(r'^select/', select, name='select'),
    url('ajax/home_view/',home_view, name='ajax_load_models'),
    url(r'^carmodels/(?P<product_make>\w+)/(?P<model_name>\w+)/$', product_detail, name='product_detail'),
    ]+ static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

我的问题是我应该进行哪些更改以及在product_make，body_style，max-min价格范围等上使用多面搜索的地方。

Answer 1

this page上有一个示例方面：

class BlogSearch(FacetedSearch):
    index = 'blogs'
    doc_types = [Blog, Post]
    fields = ['title', 'category', 'description', 'body']

    facets = {
        'type': TermsFacet(field='_type'),
        'category': TermsFacet(field='category'),
        'weekly_posts': DateHistogramFacet(field='published_from',interval='week')
    }

    def search(self):
        ' Override search to add your own filters '
        s = super(BlogSearch, self).search()
        return s.filter('term', published=True)

# when using:
blog_search = BlogSearch("web framework", filters={"category": "python"})

# supports pagination
blog_search[10:20]

response = blog_search.execute()

# easy access to aggregation results:
for category, hit_count, is_selected in response.facets.category:
print(
    "Category %s has %d hits%s." % (
        category,
        hit_count,
        ' and is chosen' if is_selected else ''
    )
)

以上代码由链接的文档页面的贡献者拥有版权，并根据Apache License 2.0获得许可。

具有多面搜索的Django Elastic Search DSL

1 个答案: