76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
// Copyright 2012-2015 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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// Matches documents that have fields containing terms
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// with a specified prefix (not analyzed).
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// For more details, see
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// http://www.elasticsearch.org/guide/reference/query-dsl/prefix-query.html
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type PrefixQuery struct {
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Query
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name string
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prefix string
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boost *float32
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rewrite string
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queryName string
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}
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// Creates a new prefix query.
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func NewPrefixQuery(name string, prefix string) PrefixQuery {
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q := PrefixQuery{name: name, prefix: prefix}
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return q
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}
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func (q PrefixQuery) Boost(boost float32) PrefixQuery {
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q.boost = &boost
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return q
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}
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func (q PrefixQuery) Rewrite(rewrite string) PrefixQuery {
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q.rewrite = rewrite
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return q
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}
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func (q PrefixQuery) QueryName(queryName string) PrefixQuery {
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q.queryName = queryName
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return q
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}
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// Creates the query source for the prefix query.
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func (q PrefixQuery) Source() interface{} {
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// {
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// "prefix" : {
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// "user" : {
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// "prefix" : "ki",
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// "boost" : 2.0
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// }
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// }
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// }
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source := make(map[string]interface{})
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query := make(map[string]interface{})
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source["prefix"] = query
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if q.boost == nil && q.rewrite == "" && q.queryName == "" {
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query[q.name] = q.prefix
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} else {
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subQuery := make(map[string]interface{})
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subQuery["prefix"] = q.prefix
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if q.boost != nil {
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subQuery["boost"] = *q.boost
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}
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if q.rewrite != "" {
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subQuery["rewrite"] = q.rewrite
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}
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if q.queryName != "" {
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subQuery["_name"] = q.queryName
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}
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query[q.name] = subQuery
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}
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return source
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}
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