File: search_queries_nested.go

package info (click to toggle)
golang-gopkg-olivere-elastic.v5 5.0.83-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 2,848 kB
  • sloc: makefile: 18; sh: 2
file content (96 lines) | stat: -rw-r--r-- 2,536 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.

package elastic

// NestedQuery allows to query nested objects / docs.
// The query is executed against the nested objects / docs as if they were
// indexed as separate docs (they are, internally) and resulting in the
// root parent doc (or parent nested mapping).
//
// For more details, see
// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-nested-query.html
type NestedQuery struct {
	query          Query
	path           string
	scoreMode      string
	boost          *float64
	queryName      string
	innerHit       *InnerHit
	ignoreUnmapped *bool
}

// NewNestedQuery creates and initializes a new NestedQuery.
func NewNestedQuery(path string, query Query) *NestedQuery {
	return &NestedQuery{path: path, query: query}
}

// ScoreMode specifies the score mode.
func (q *NestedQuery) ScoreMode(scoreMode string) *NestedQuery {
	q.scoreMode = scoreMode
	return q
}

// Boost sets the boost for this query.
func (q *NestedQuery) Boost(boost float64) *NestedQuery {
	q.boost = &boost
	return q
}

// QueryName sets the query name for the filter that can be used
// when searching for matched_filters per hit
func (q *NestedQuery) QueryName(queryName string) *NestedQuery {
	q.queryName = queryName
	return q
}

// InnerHit sets the inner hit definition in the scope of this nested query
// and reusing the defined path and query.
func (q *NestedQuery) InnerHit(innerHit *InnerHit) *NestedQuery {
	q.innerHit = innerHit
	return q
}

// IgnoreUnmapped sets the ignore_unmapped option for the filter that ignores
// unmapped nested fields
func (q *NestedQuery) IgnoreUnmapped(value bool) *NestedQuery {
	q.ignoreUnmapped = &value
	return q
}

// Source returns JSON for the query.
func (q *NestedQuery) Source() (interface{}, error) {
	query := make(map[string]interface{})
	nq := make(map[string]interface{})
	query["nested"] = nq

	src, err := q.query.Source()
	if err != nil {
		return nil, err
	}
	nq["query"] = src

	nq["path"] = q.path

	if q.scoreMode != "" {
		nq["score_mode"] = q.scoreMode
	}
	if q.boost != nil {
		nq["boost"] = *q.boost
	}
	if q.queryName != "" {
		nq["_name"] = q.queryName
	}
	if q.ignoreUnmapped != nil {
		nq["ignore_unmapped"] = *q.ignoreUnmapped
	}
	if q.innerHit != nil {
		src, err := q.innerHit.Source()
		if err != nil {
			return nil, err
		}
		nq["inner_hits"] = src
	}
	return query, nil
}