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Diffstat (limited to 'vendor/gopkg.in/olivere/elastic.v5/search_queries_has_child.go')
-rw-r--r-- | vendor/gopkg.in/olivere/elastic.v5/search_queries_has_child.go | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/vendor/gopkg.in/olivere/elastic.v5/search_queries_has_child.go b/vendor/gopkg.in/olivere/elastic.v5/search_queries_has_child.go new file mode 100644 index 000000000..27cea7ad6 --- /dev/null +++ b/vendor/gopkg.in/olivere/elastic.v5/search_queries_has_child.go @@ -0,0 +1,131 @@ +// 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 + +// HasChildQuery accepts a query and the child type to run against, and results +// in parent documents that have child docs matching the query. +// +// For more details, see +// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-has-child-query.html +type HasChildQuery struct { + query Query + childType string + boost *float64 + scoreMode string + minChildren *int + maxChildren *int + shortCircuitCutoff *int + queryName string + innerHit *InnerHit +} + +// NewHasChildQuery creates and initializes a new has_child query. +func NewHasChildQuery(childType string, query Query) *HasChildQuery { + return &HasChildQuery{ + query: query, + childType: childType, + } +} + +// Boost sets the boost for this query. +func (q *HasChildQuery) Boost(boost float64) *HasChildQuery { + q.boost = &boost + return q +} + +// ScoreMode defines how the scores from the matching child documents +// are mapped into the parent document. Allowed values are: min, max, +// avg, or none. +func (q *HasChildQuery) ScoreMode(scoreMode string) *HasChildQuery { + q.scoreMode = scoreMode + return q +} + +// MinChildren defines the minimum number of children that are required +// to match for the parent to be considered a match. +func (q *HasChildQuery) MinChildren(minChildren int) *HasChildQuery { + q.minChildren = &minChildren + return q +} + +// MaxChildren defines the maximum number of children that are required +// to match for the parent to be considered a match. +func (q *HasChildQuery) MaxChildren(maxChildren int) *HasChildQuery { + q.maxChildren = &maxChildren + return q +} + +// ShortCircuitCutoff configures what cut off point only to evaluate +// parent documents that contain the matching parent id terms instead +// of evaluating all parent docs. +func (q *HasChildQuery) ShortCircuitCutoff(shortCircuitCutoff int) *HasChildQuery { + q.shortCircuitCutoff = &shortCircuitCutoff + return q +} + +// QueryName specifies the query name for the filter that can be used when +// searching for matched filters per hit. +func (q *HasChildQuery) QueryName(queryName string) *HasChildQuery { + q.queryName = queryName + return q +} + +// InnerHit sets the inner hit definition in the scope of this query and +// reusing the defined type and query. +func (q *HasChildQuery) InnerHit(innerHit *InnerHit) *HasChildQuery { + q.innerHit = innerHit + return q +} + +// Source returns JSON for the function score query. +func (q *HasChildQuery) Source() (interface{}, error) { + // { + // "has_child" : { + // "type" : "blog_tag", + // "score_mode" : "min", + // "query" : { + // "term" : { + // "tag" : "something" + // } + // } + // } + // } + source := make(map[string]interface{}) + query := make(map[string]interface{}) + source["has_child"] = query + + src, err := q.query.Source() + if err != nil { + return nil, err + } + query["query"] = src + query["type"] = q.childType + if q.boost != nil { + query["boost"] = *q.boost + } + if q.scoreMode != "" { + query["score_mode"] = q.scoreMode + } + if q.minChildren != nil { + query["min_children"] = *q.minChildren + } + if q.maxChildren != nil { + query["max_children"] = *q.maxChildren + } + if q.shortCircuitCutoff != nil { + query["short_circuit_cutoff"] = *q.shortCircuitCutoff + } + if q.queryName != "" { + query["_name"] = q.queryName + } + if q.innerHit != nil { + src, err := q.innerHit.Source() + if err != nil { + return nil, err + } + query["inner_hits"] = src + } + return source, nil +} |