Elasticsearch with multiple parent/child relationship

Question

I\'m building an application with complicated model, says Book, User and Review.

A Review contains both Book and User id. To be able to search for Books that contai

Answer 1

Somths like (just make Books type as parent for Users and Reviews types)

.../index/users/_search?pretty" -d '
    {
        "query": {
            "filtered": {
                "filter": {
                    "and": [
                        {
                            "has_parent": {
                                "parent_type": "books",
                                "filter": {
                                    "has_child": {
                                        "type": "Reviews",
                                        "query": {
                                            "term": {
                                                "text_review": "some word"
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    ]
                }
            }
        }
    }
    '