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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
// A filter that matches documents using OR boolean operator
// on other queries. Can be placed within queries that accept a filter.
// For details, see:
// http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-or-filter.html
type OrFilter struct {
filters []Filter
cache *bool
cacheKey string
filterName string
}
func NewOrFilter(filters ...Filter) OrFilter {
f := OrFilter{
filters: make([]Filter, 0),
}
if len(filters) > 0 {
f.filters = append(f.filters, filters...)
}
return f
}
func (f OrFilter) Add(filter Filter) OrFilter {
f.filters = append(f.filters, filter)
return f
}
func (f OrFilter) Cache(cache bool) OrFilter {
f.cache = &cache
return f
}
func (f OrFilter) CacheKey(cacheKey string) OrFilter {
f.cacheKey = cacheKey
return f
}
func (f OrFilter) FilterName(filterName string) OrFilter {
f.filterName = filterName
return f
}
func (f OrFilter) Source() interface{} {
// {
// "or" : [
// ... filters ...
// ]
// }
source := make(map[string]interface{})
params := make(map[string]interface{})
source["or"] = params
filters := make([]interface{}, len(f.filters))
params["filters"] = filters
for i, filter := range f.filters {
filters[i] = filter.Source()
}
if f.cache != nil {
params["_cache"] = *f.cache
}
if f.cacheKey != "" {
params["_cache_key"] = f.cacheKey
}
if f.filterName != "" {
params["_name"] = f.filterName
}
return source
}
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