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// 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
// FuzzyLikeThisFieldQuery is the same as the fuzzy_like_this query,
// except that it runs against a single field. It provides nicer query DSL
// over the generic fuzzy_like_this query, and support typed fields query
// (automatically wraps typed fields with type filter to match only on the specific type).
// For more details, see
// http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-flt-field-query.html
type FuzzyLikeThisFieldQuery struct {
Query
field string
boost *float32
likeText *string
fuzziness interface{}
prefixLength *int
maxQueryTerms *int
ignoreTF *bool
analyzer string
failOnUnsupportedField *bool
queryName string
}
// NewFuzzyLikeThisFieldQuery creates a new fuzzy like this field query.
func NewFuzzyLikeThisFieldQuery(field string) FuzzyLikeThisFieldQuery {
q := FuzzyLikeThisFieldQuery{
field: field,
}
return q
}
func (q FuzzyLikeThisFieldQuery) LikeText(likeText string) FuzzyLikeThisFieldQuery {
q.likeText = &likeText
return q
}
// Fuzziness can be an integer/long like 0, 1 or 2 as well as strings like "auto",
// "0..1", "1..4" or "0.0..1.0".
func (q FuzzyLikeThisFieldQuery) Fuzziness(fuzziness interface{}) FuzzyLikeThisFieldQuery {
q.fuzziness = fuzziness
return q
}
func (q FuzzyLikeThisFieldQuery) PrefixLength(prefixLength int) FuzzyLikeThisFieldQuery {
q.prefixLength = &prefixLength
return q
}
func (q FuzzyLikeThisFieldQuery) MaxQueryTerms(maxQueryTerms int) FuzzyLikeThisFieldQuery {
q.maxQueryTerms = &maxQueryTerms
return q
}
func (q FuzzyLikeThisFieldQuery) IgnoreTF(ignoreTF bool) FuzzyLikeThisFieldQuery {
q.ignoreTF = &ignoreTF
return q
}
func (q FuzzyLikeThisFieldQuery) Analyzer(analyzer string) FuzzyLikeThisFieldQuery {
q.analyzer = analyzer
return q
}
func (q FuzzyLikeThisFieldQuery) Boost(boost float32) FuzzyLikeThisFieldQuery {
q.boost = &boost
return q
}
func (q FuzzyLikeThisFieldQuery) FailOnUnsupportedField(fail bool) FuzzyLikeThisFieldQuery {
q.failOnUnsupportedField = &fail
return q
}
func (q FuzzyLikeThisFieldQuery) QueryName(queryName string) FuzzyLikeThisFieldQuery {
q.queryName = queryName
return q
}
// Creates the query source for the ids query.
func (q FuzzyLikeThisFieldQuery) Source() interface{} {
// {
// "fuzzy_like_this_field" : {
// "name.first": {
// "like_text" : "text like this one",
// "max_query_terms" : 12
// }
// }
source := make(map[string]interface{})
query := make(map[string]interface{})
source["fuzzy_like_this_field"] = query
fq := make(map[string]interface{})
query[q.field] = fq
fq["like_text"] = q.likeText
if q.maxQueryTerms != nil {
fq["max_query_terms"] = *q.maxQueryTerms
}
if q.fuzziness != nil {
fq["fuzziness"] = q.fuzziness
}
if q.prefixLength != nil {
fq["prefix_length"] = *q.prefixLength
}
if q.ignoreTF != nil {
fq["ignore_tf"] = *q.ignoreTF
}
if q.boost != nil {
fq["boost"] = *q.boost
}
if q.analyzer != "" {
fq["analyzer"] = q.analyzer
}
if q.failOnUnsupportedField != nil {
fq["fail_on_unsupported_field"] = *q.failOnUnsupportedField
}
if q.queryName != "" {
fq["_name"] = q.queryName
}
return source
}
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