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50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
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// Copyright 2012-present Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package elastic
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// ExistsQuery is a query that only matches on documents that the field
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// has a value in them.
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//
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// For more details, see:
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// https://www.elastic.co/guide/en/elasticsearch/reference/7.0/query-dsl-exists-query.html
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type ExistsQuery struct {
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name string
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queryName string
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}
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// NewExistsQuery creates and initializes a new exists query.
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func NewExistsQuery(name string) *ExistsQuery {
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return &ExistsQuery{
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name: name,
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}
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}
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// QueryName sets the query name for the filter that can be used
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// when searching for matched queries per hit.
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func (q *ExistsQuery) QueryName(queryName string) *ExistsQuery {
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q.queryName = queryName
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return q
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}
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// Source returns the JSON serializable content for this query.
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func (q *ExistsQuery) Source() (interface{}, error) {
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// {
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// "exists" : {
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// "field" : "user"
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// }
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// }
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query := make(map[string]interface{})
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params := make(map[string]interface{})
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query["exists"] = params
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params["field"] = q.name
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if q.queryName != "" {
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params["_name"] = q.queryName
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}
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return query, nil
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}
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