mirror of https://github.com/go-gitea/gitea.git
77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
// 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
|
|
|
|
// ChildrenAggregation is a special single bucket aggregation that enables
|
|
// aggregating from buckets on parent document types to buckets on child documents.
|
|
// It is available from 1.4.0.Beta1 upwards.
|
|
// See: https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-aggregations-bucket-children-aggregation.html
|
|
type ChildrenAggregation struct {
|
|
typ string
|
|
subAggregations map[string]Aggregation
|
|
meta map[string]interface{}
|
|
}
|
|
|
|
func NewChildrenAggregation() *ChildrenAggregation {
|
|
return &ChildrenAggregation{
|
|
subAggregations: make(map[string]Aggregation),
|
|
}
|
|
}
|
|
|
|
func (a *ChildrenAggregation) Type(typ string) *ChildrenAggregation {
|
|
a.typ = typ
|
|
return a
|
|
}
|
|
|
|
func (a *ChildrenAggregation) SubAggregation(name string, subAggregation Aggregation) *ChildrenAggregation {
|
|
a.subAggregations[name] = subAggregation
|
|
return a
|
|
}
|
|
|
|
// Meta sets the meta data to be included in the aggregation response.
|
|
func (a *ChildrenAggregation) Meta(metaData map[string]interface{}) *ChildrenAggregation {
|
|
a.meta = metaData
|
|
return a
|
|
}
|
|
|
|
func (a *ChildrenAggregation) Source() (interface{}, error) {
|
|
// Example:
|
|
// {
|
|
// "aggs" : {
|
|
// "to-answers" : {
|
|
// "children": {
|
|
// "type" : "answer"
|
|
// }
|
|
// }
|
|
// }
|
|
// }
|
|
// This method returns only the { "type" : ... } part.
|
|
|
|
source := make(map[string]interface{})
|
|
opts := make(map[string]interface{})
|
|
source["children"] = opts
|
|
opts["type"] = a.typ
|
|
|
|
// AggregationBuilder (SubAggregations)
|
|
if len(a.subAggregations) > 0 {
|
|
aggsMap := make(map[string]interface{})
|
|
source["aggregations"] = aggsMap
|
|
for name, aggregate := range a.subAggregations {
|
|
src, err := aggregate.Source()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
aggsMap[name] = src
|
|
}
|
|
}
|
|
|
|
// Add Meta data if available
|
|
if len(a.meta) > 0 {
|
|
source["meta"] = a.meta
|
|
}
|
|
|
|
return source, nil
|
|
}
|