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// 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
// TermsSetQuery returns any documents that match with at least
// one or more of the provided terms. The terms are not analyzed
// and thus must match exactly. The number of terms that must
// match varies per document and is either controlled by a
// minimum should match field or computed per document in a
// minimum should match script.
//
// For more details, see
// https://www.elastic.co/guide/en/elasticsearch/reference/6.1/query-dsl-terms-set-query.html
type TermsSetQuery struct {
name string
values []interface{}
minimumShouldMatchField string
minimumShouldMatchScript *Script
queryName string
boost *float64
}
// NewTermsSetQuery creates and initializes a new TermsSetQuery.
func NewTermsSetQuery(name string, values ...interface{}) *TermsSetQuery {
q := &TermsSetQuery{
name: name,
}
if len(values) > 0 {
q.values = append(q.values, values...)
}
return q
}
// MinimumShouldMatchField specifies the field to match.
func (q *TermsSetQuery) MinimumShouldMatchField(minimumShouldMatchField string) *TermsSetQuery {
q.minimumShouldMatchField = minimumShouldMatchField
return q
}
// MinimumShouldMatchScript specifies the script to match.
func (q *TermsSetQuery) MinimumShouldMatchScript(minimumShouldMatchScript *Script) *TermsSetQuery {
q.minimumShouldMatchScript = minimumShouldMatchScript
return q
}
// Boost sets the boost for this query.
func (q *TermsSetQuery) Boost(boost float64) *TermsSetQuery {
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 *TermsSetQuery) QueryName(queryName string) *TermsSetQuery {
q.queryName = queryName
return q
}
// Source creates the query source for the term query.
func (q *TermsSetQuery) Source() (interface{}, error) {
// {"terms_set":{"codes":{"terms":["abc","def"],"minimum_should_match_field":"required_matches"}}}
source := make(map[string]interface{})
inner := make(map[string]interface{})
params := make(map[string]interface{})
inner[q.name] = params
source["terms_set"] = inner
// terms
params["terms"] = q.values
// minimum_should_match_field
if match := q.minimumShouldMatchField; match != "" {
params["minimum_should_match_field"] = match
}
// minimum_should_match_script
if match := q.minimumShouldMatchScript; match != nil {
src, err := match.Source()
if err != nil {
return nil, err
}
params["minimum_should_match_script"] = src
}
// Common parameters for all queries
if q.boost != nil {
params["boost"] = *q.boost
}
if q.queryName != "" {
params["_name"] = q.queryName
}
return source, nil
}
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