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89 lines
2.6 KiB
89 lines
2.6 KiB
// 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 es
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// MatchPhrasePrefixQuery is the same as match_phrase, except that it allows for
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// prefix matches on the last term in the text.
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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-match-query-phrase-prefix.html
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type MatchPhrasePrefixQuery struct {
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name string
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value interface{}
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analyzer string
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slop *int
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maxExpansions *int
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boost *float64
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queryName string
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}
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// NewMatchPhrasePrefixQuery creates and initializes a new MatchPhrasePrefixQuery.
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func NewMatchPhrasePrefixQuery(name string, value interface{}) *MatchPhrasePrefixQuery {
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return &MatchPhrasePrefixQuery{name: name, value: value}
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}
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// Analyzer explicitly sets the analyzer to use. It defaults to use explicit
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// mapping config for the field, or, if not set, the default search analyzer.
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func (q *MatchPhrasePrefixQuery) Analyzer(analyzer string) *MatchPhrasePrefixQuery {
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q.analyzer = analyzer
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return q
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}
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// Slop sets the phrase slop if evaluated to a phrase query type.
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func (q *MatchPhrasePrefixQuery) Slop(slop int) *MatchPhrasePrefixQuery {
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q.slop = &slop
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return q
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}
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// MaxExpansions sets the number of term expansions to use.
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func (q *MatchPhrasePrefixQuery) MaxExpansions(n int) *MatchPhrasePrefixQuery {
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q.maxExpansions = &n
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return q
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}
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// Boost sets the boost to apply to this query.
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func (q *MatchPhrasePrefixQuery) Boost(boost float64) *MatchPhrasePrefixQuery {
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q.boost = &boost
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return q
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}
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// QueryName sets the query name for the filter that can be used when
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// searching for matched filters per hit.
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func (q *MatchPhrasePrefixQuery) QueryName(queryName string) *MatchPhrasePrefixQuery {
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q.queryName = queryName
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return q
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}
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// Source returns JSON for the function score query.
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func (q *MatchPhrasePrefixQuery) Source() (interface{}, error) {
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// {"match_phrase_prefix":{"name":{"query":"value","max_expansions":10}}}
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source := make(map[string]interface{})
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match := make(map[string]interface{})
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source["match_phrase_prefix"] = match
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query := make(map[string]interface{})
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match[q.name] = query
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query["query"] = q.value
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if q.analyzer != "" {
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query["analyzer"] = q.analyzer
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}
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if q.slop != nil {
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query["slop"] = *q.slop
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}
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if q.maxExpansions != nil {
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query["max_expansions"] = *q.maxExpansions
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}
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if q.boost != nil {
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query["boost"] = *q.boost
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}
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if q.queryName != "" {
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query["_name"] = q.queryName
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}
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return source, nil
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}
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