Django Haystack LocationField在Elasticsearch中创建为字符串而不是geo_point

Question

我正在将django 1.8.9，django-rest-framework，django-
haystack与Elasticsearch一起使用，并尝试使LocationField工作，创建了索引，但是类型始终string是geo_point，而不是，因此显然没有地理搜索有效。

settings.py：

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.gis',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.admin',
    'django_extensions',
    'elasticsearch',
    'rest_framework',
    'haystack',
)

requirements.txt：

Django==1.8.9
django-appconf==1.0.1
django-compressor==1.6
django-extensions==1.6.1
django-filter==0.11.0
django-haystack==2.4.1
djangorestframework==3.3.1
djangorestframework-jwt==1.7.2
ecdsa==0.13
elasticsearch==2.2.0
Fabric==1.10.2
future==0.15.2
geopy==1.11.0
gunicorn==19.4.1
Markdown==2.6.5
paramiko==1.16.0
psycopg2==2.6.1
pycrypto==2.6.1
PyJWT==1.4.0
python-dateutil==2.4.2
python-memcached==1.57
setproctitle==1.1.9
six==1.10.0
urllib3==1.14

search_indexes.py：

from haystack import indexes
from blah.api.models import MyModel


class MyIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True)
    description = indexes.CharField(model_attr='description')
    location = indexes.LocationField(model_attr='get_location')
    created = indexes.DateTimeField(model_attr='created')

    def get_model(self):
        return MyModel

MyModel的get_location属性：

from haystack.utils.geo import Point
def get_location(self):
    return Point(self.lng, self.lat)

创建的elasticsearch索引（对格式很抱歉！）：

{  
   "myindex":{  
      "mappings":{  
         "modelresult":{  
            "properties":{  
               "created":{  
                  "type":"date",
                  "format":"strict_date_optional_time||epoch_millis"
               },
               "description":{  
                  "type":"string"
               },
               "django_ct":{  
                  "type":"string"
               },
               "django_id":{  
                  "type":"string"
               },
               "id":{  
                  "type":"string"
               },
               "location":{  
                  "type":"string"
               },
               "text":{  
                  "type":"string"
               }
            }
         }
      }
   }
}

有人有什么想法吗？感觉是django，django-haystack和elasticsearch之间版本的组合不能很好地发挥，但是我似乎无法获得任何组合。

Answer 1

好的，我已经弄清楚了问题所在：在Elasticsearch
2.0中，存在元数据更改，其中一项boost已被删除：https :
//www.elastic.co/guide/en/elasticsearch/reference/current/breaking_20_mapping_changes
.html＃migration-meta-
fields

追溯到elasticsearch/transport.py，对http://127.0.0.1:9200/myindex/_mapping/modelresult的PUT请求在正文中包括“
_boost”：{“ name”：“ boost”，“ null_value”：1.0}。

因此，跟踪呼叫并将其重新存储为CURL：

创建索引

curl -X PUT -d '{"settings": {"analysis": {"filter": {"haystack_edgengram": {"max_gram": 15, "type": "edgeNGram", "min_gram": 2}, "haystack_ngram": {"max_gram": 15, "type": "nGram", "min_gram": 3}}, "tokenizer": {"haystack_ngram_tokenizer": {"max_gram": 15, "type": "nGram", "min_gram": 3}, "haystack_edgengram_tokenizer": {"max_gram": 15, "type": "edgeNGram", "side": "front", "min_gram": 2}}, "analyzer": {"edgengram_analyzer": {"filter": ["haystack_edgengram", "lowercase"], "type": "custom", "tokenizer": "standard"}, "ngram_analyzer": {"filter": ["haystack_ngram", "lowercase"], "type": "custom", "tokenizer": "standard"}}}}}' http://127.0.0.1:9200/myindex

失败的请求

curl -X PUT -d '{"modelresult": {"_boost": {"name": "boost", "null_value": 1.0}, "properties": {"django_id": {"include_in_all": false, "index": "not_analyzed", "type": "string"}, "description": {"type": "string", "analyzer": "snowball"}, "created": {"type": "date"}, "text": {"type": "string", "analyzer": "snowball"}, "django_ct": {"include_in_all": false, "index": "not_analyzed", "type": "string"}, "location": {"type": "geo_point"}}}}' http://127.0.0.1:9200/myindex/_mapping/modelresult

改变这项工作

curl -X PUT -d '{"modelresult": {"properties": {"django_id": {"include_in_all": false, "index": "not_analyzed", "type": "string"}, "description": {"type": "string", "analyzer": "snowball"}, "created": {"type": "date"}, "text": {"type": "string", "analyzer": "snowball"}, "django_ct": {"include_in_all": false, "index": "not_analyzed", "type": "string"}, "location": {"type": "geo_point"}}}}' http://127.0.0.1:9200/myindex/_mapping/modelresult

因此，python修复 在haystack / backends /
elasticsearch_backend.py中，注释掉了第137-140行中current_mapping的bo​​ost部分