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。
string
geo_point
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。
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
boost
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}。
elasticsearch/transport.py
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boost部分