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module Spotlight
##
# Expose Solr index metadata about fields
class FieldMetadata
attr_reader :repository, :blacklight_config
def initialize(repository, blacklight_config)
@repository = repository
@blacklight_config = blacklight_config
end
def field(field_name)
{
document_count: document_counts.fetch(field_name, 0),
value_count: fields.fetch(field_name, {}).fetch('distinct', 0),
terms: fields.fetch(field_name, {}).fetch('topTerms', [])
}
end
private
def luke
@luke ||= repository.send_and_receive('admin/luke', fl: '*', 'json.nl' => 'map')
end
def fields
luke['fields']
end
# This gets the number of *documents* with a field
def document_counts
@document_count ||= begin
solr_resp = repository.search('facet.query' => facet_fields.map { |_key, fields| "#{fields.field}:[* TO *]" },
'rows' => 0,
'facet' => true)
solr_resp['facet_counts']['facet_queries'].each_with_object({}) do |(k, v), h|
h[k.split(/:/).first] = v
end
end
end
def facet_fields
blacklight_config.facet_fields.reject { |_k, v| v.pivot || v.query }
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems