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# File 'lib/skala/elasticsearch_adapter/search/request_transformation/add_aggregations.rb', line 7
def call
source.facets.try(:each) do |_facet|
target["aggregations"] ||= {}
elasticsearch_aggregation =
if _facet.is_a?(Skala::Adapter::Search::Request::HistogramFacet)
{
"histogram" => {
"field" => _facet.field,
"interval" => _facet.interval
}
.compact
}
elsif _facet.is_a?(Skala::Adapter::Search::Request::RangeFacet)
{
"range" => {
"field" => _facet.field,
"ranges" => _facet.ranges.map do |_range|
{
"key" => _range.key,
"from" => _range.from,
"to" => _range.to
}
.compact
end
}
}
elsif _facet.is_a?(Skala::Adapter::Search::Request::TermsFacet)
{
"terms" => {
"field" => _facet.field,
"size" => _facet.size,
"shard_size" => (_facet.size * 3 if _facet.size)
}
.compact
}
end
if elasticsearch_aggregation
target["aggregations"][_facet.name] = elasticsearch_aggregation
end
end
end
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