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search_filters_exists.go
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/
search_filters_exists.go
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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
// Filters documents where a specific field has a value in them.
// For details, see:
// http://www.elasticsearch.org/guide/reference/query-dsl/exists-filter.html
type ExistsFilter struct {
Filter
name string
filterName string
}
func NewExistsFilter(name string) ExistsFilter {
f := ExistsFilter{name: name}
return f
}
func (f ExistsFilter) FilterName(filterName string) ExistsFilter {
f.filterName = filterName
return f
}
func (f ExistsFilter) Source() interface{} {
// {
// "exists" : {
// "field" : "..."
// }
// }
source := make(map[string]interface{})
params := make(map[string]interface{})
source["exists"] = params
params["field"] = f.name
if f.filterName != "" {
params["_name"] = f.filterName
}
return source
}