mirror of https://github.com/minio/minio.git
68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
|
// Copyright 2012-2015 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
|
||
|
|
|
||
|
|
// MissingQuery returns documents that have only null values or no value
|
||
|
|
// in the original field.
|
||
|
|
//
|
||
|
|
// For details, see:
|
||
|
|
// https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-missing-query.html
|
||
|
|
type MissingQuery struct {
|
||
|
|
name string
|
||
|
|
queryName string
|
||
|
|
nullValue *bool
|
||
|
|
existence *bool
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewMissingQuery creates and initializes a new MissingQuery.
|
||
|
|
func NewMissingQuery(name string) *MissingQuery {
|
||
|
|
return &MissingQuery{name: name}
|
||
|
|
}
|
||
|
|
|
||
|
|
// QueryName sets the query name for the query that can be used when
|
||
|
|
// searching for matched filters hit.
|
||
|
|
func (q *MissingQuery) QueryName(queryName string) *MissingQuery {
|
||
|
|
q.queryName = queryName
|
||
|
|
return q
|
||
|
|
}
|
||
|
|
|
||
|
|
// NullValue indicates whether the missing filter automatically includes
|
||
|
|
// fields with null value configured in the mappings. Defaults to false.
|
||
|
|
func (q *MissingQuery) NullValue(nullValue bool) *MissingQuery {
|
||
|
|
q.nullValue = &nullValue
|
||
|
|
return q
|
||
|
|
}
|
||
|
|
|
||
|
|
// Existence indicates whether the missing filter includes documents where
|
||
|
|
// the field doesn't exist in the docs.
|
||
|
|
func (q *MissingQuery) Existence(existence bool) *MissingQuery {
|
||
|
|
q.existence = &existence
|
||
|
|
return q
|
||
|
|
}
|
||
|
|
|
||
|
|
// Source returns JSON for the query.
|
||
|
|
func (q *MissingQuery) Source() (interface{}, error) {
|
||
|
|
// {
|
||
|
|
// "missing" : {
|
||
|
|
// "field" : "..."
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
|
||
|
|
source := make(map[string]interface{})
|
||
|
|
params := make(map[string]interface{})
|
||
|
|
source["missing"] = params
|
||
|
|
params["field"] = q.name
|
||
|
|
if q.nullValue != nil {
|
||
|
|
params["null_value"] = *q.nullValue
|
||
|
|
}
|
||
|
|
if q.existence != nil {
|
||
|
|
params["existence"] = *q.existence
|
||
|
|
}
|
||
|
|
if q.queryName != "" {
|
||
|
|
params["_name"] = q.queryName
|
||
|
|
}
|
||
|
|
return source, nil
|
||
|
|
}
|