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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
// QueryFilter wraps any query to be used as a filter. It can be placed
// within queries that accept a filter.
// For details, see:
// http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-query-filter.html
type QueryFilter struct {
Filter
name string
query Query
cache *bool
filterName string
}
func NewQueryFilter(query Query) QueryFilter {
f := QueryFilter{query: query}
return f
}
func (f QueryFilter) Name(name string) QueryFilter {
f.name = name
return f
}
func (f QueryFilter) Query(query Query) QueryFilter {
f.query = query
return f
}
func (f QueryFilter) Cache(cache bool) QueryFilter {
f.cache = &cache
return f
}
func (f QueryFilter) FilterName(filterName string) QueryFilter {
f.filterName = filterName
return f
}
func (f QueryFilter) Source() interface{} {
// {
// "query" : {
// "..." : "..."
// }
// }
source := make(map[string]interface{})
if f.filterName == "" && (f.cache == nil || *f.cache == false) {
source["query"] = f.query.Source()
} else {
params := make(map[string]interface{})
source["fquery"] = params
params["query"] = f.query.Source()
if f.filterName != "" {
params["_name"] = f.filterName
}
if f.cache != nil {
params["_cache"] = *f.cache
}
}
return source
}
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