不能让部分单词搜索与haystack/elasticsearch一起使用

Question

我正试图让部分单词匹配工作,我已经看过相关的问题,但由于某种原因,我的设置不起作用.我正在使用带有弹性搜索的haystack.有人可以告诉我我做错了什么吗？

class VendorIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.EdgeNgramField(document=True, use_template=True)
    company_name = indexes.CharField(model_attr='company_name', null=True)

    def get_model(self):
        return Vendor

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

编辑:我通过使用自动完成功能完成了这项工作.但是,我觉得这是一个黑客.但这是我的代码:

class VendorIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True)
    company_name = indexes.CharField(model_attr='company_name', null=True)
    company_name_auto = indexes.NgramField(model_attr='company_name')
    def get_model(self):
        return Vendor

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

然后在视图中:

class SearchVendorView(generics.ListAPIView):
    serializer_class = serializers.CustomerVendorSerializer

    def get_queryset(self):
        results = SearchQuerySet().models(Vendor).autocomplete(company_name_auto=self.request.GET.get('q', ''))
        vendors = []

        for vendor in [result.object for result in results]:
            vendor.is_liked = Vendor.objects.from_request(self.request).get(pk=vendor.id).user_vote  
            vendors.append(vendor)      

        return vendors

Answer 1

就我而言：django-haystack==2.5.1+ elasticsearch==5.0.1+java elastic search daemon v2.3.1这足以进行部分搜索：

from haystack import indexes
from authors.models import Author


class AuthorIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.EdgeNgramField(document=True, use_template=True)
    last_name = indexes.CharField(model_attr='last_name')
    first_name = indexes.CharField(model_attr='first_name')

    def get_model(self):
        return Author

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

然后python manage.py rebuild_index您可以通过以下方式搜索：

from haystack.query import SearchQuerySet
SearchQuerySet().filter(content="alex")

找到Alexander.