python elasticsearch-dsl父子关系

Question

我开始使用python库elasticsearch-dsl.

我正在尝试实现父子关系,但它无法正常工作:

    class Location(DocType):
        name = String(analyzer='snowball', fields={'raw': String(index='not_analyzed')})
        latitude = String(analyzer='snowball')
        longitude = String(analyzer='snowball')
        created_at = Date()

   class Building(DocType):
       parent = Location()

Answer 1

elasticsearch-dsl使用MetaField构建了父子关系:

class Location(DocType):
    name = String(analyzer='snowball', fields={'raw': String(index='not_analyzed')})
    latitude = String(analyzer='snowball')
    longitude = String(analyzer='snowball')
    created = Date()

    class Meta:
        doc_type = 'location' 

class Building(DocType):

    class Meta:
        doc_type = 'building'
        parent = MetaField(type='location')

如何插入和查询(HT到@Maresh):
- DSL获取:ChildDoc.get(id=child_id, routing=parent_id)
- DSL插入:我相信它child.save(id=child_id, routing=parent_id)
- 字典插入:'_parent': parent_id在字典中 指定