自动完成无法使用具有弹性搜索的 Haystack

Question

I m trying to make autocomplete api for one model in django. First time using haystack with elastic search. Getting error while trying to get autocomplete results.

Failed to query Elasticsearch using 'content_auto:(Jitney)': TransportError(400, u'parsing_exception', u'[query_string] query does not support [fuzzy_min_sim]')

models.py

from __future__ import unicode_literals

from django.db import models


class Movie(models.Model):
    title = models.CharField(max_length=250)
    year = models.CharField(max_length=250)
    location = models.CharField(max_length=250)
    fun_fact = models.CharField(max_length=250, null=True)
    production_company = models.CharField(max_length=250)
    director = models.CharField(max_length=250)
    actor1 = models.CharField(max_length=250)
    actor2 = models.CharField(max_length=250, null=True)
    actor3 = models.CharField(max_length=250, null=True)
    longitude = models.DecimalField(max_digits=9, decimal_places=6)
    latitude = models.DecimalField(max_digits=9, decimal_places=6)

    class Meta:
        db_table = "sf_movies"

    def __str__(self):
        return self.title

search.py

from haystack import indexes
from models import Movie


class MovieIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True)
    year = indexes.CharField(model_attr='year')

    content_auto = indexes.EdgeNgramField(model_attr='title')

    def get_model(self):
        return Movie

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

views.py

from django.shortcuts import render

# Create your views here.
import json
from django.http import HttpResponse
from haystack.query import SearchQuerySet


def autocomplete(request):
    sqs = SearchQuerySet().autocomplete(content_auto=request.GET.get('q', ''))[:5]
    suggestions = [result.title for result in sqs]
    # Make sure you return a JSON object, not a bare list.
    # Otherwise, you could be vulnerable to an XSS attack.
    the_data = json.dumps({
        'results': suggestions
    })
    return HttpResponse(the_data, content_type='application/json')

directory structure

.
── app
│   ├── __init__.py
│   ├── admin.py
│   ├── apps.py
│   ├── migrations
│   │   ├── 0001_initial.py
│   │   ├── __init__.py
│   ├── models.py
│   ├── search.py
│   ├── template
│   │   └── search
│   │       └── indexes
│   │           └── app
│   │               └── movie_text.txt
│   ├── tests.py
│   ├── views.py
├── db.sqlite3
├── manage.py
└── uber_assignment_SF_movies
    ├── __init__.py
    ├── settings.py
    ├── settings.pyc
    ├── urls.py
    ├── wsgi.py

movie_text.txt

{{ object.title }}
{{ object.year }}
{{ object.production_company }}
{{ object.director }}

when i run rebuild_index command i get below output

WARNING: This will irreparably remove EVERYTHING from your search index in connection 'default'.
Your choices after this are to restore from backups or rebuild via the `rebuild_index` command.
Are you sure you wish to continue? [y/N] y
Removing all documents from your index because you said so.
All documents removed.
~

what i am missing unable to find issue here.

Answer 1

There was a mistake with search file name. I named file as "search.py" instead of "search_indexes.py"