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Contents
# frozen_string_literal: true
module Hyrax
module Statistics
# An abstract class for running a query against the Solr terms component
# you must implement `index_key` in the concrete class.
#
# WARNING: you must use a term that isn't parsed (i.e. use _sim instead of _tesim)
class TermQuery
# @api public
# @param [Integer] limit - Limit the number of responses
# @return [Array<Hyrax::Statistics::TermQuery::Result>]
def self.query(limit: 5)
new(limit).query
end
def initialize(limit = 5)
@limit = limit
end
def query
term = index_key
# Grab JSON response (looks like {"terms": {"depositor_tesim": {"mjg36": 3}}} for depositor)
json = Hyrax::SolrService.get(path: 'terms',
'terms.fl': term,
'terms.sort': 'count',
'terms.limit': @limit,
wt: 'json',
'json.nl': 'map',
omitHeader: 'true')
unless json
Rails.logger.error "Unable to reach TermsComponent via Solr connection. Is it enabled in your solr config?"
return []
end
Result.build(json['terms'][term])
end
class Result
# @param [Array<Array>] rows list of of tuples (label, value)
def self.build(rows)
rows.map { |row| Result.new(*row) }
end
def initialize(label, value)
@data = { label: label, data: value }
end
def label
@data[:label]
end
def value
@data[:data]
end
# This enables hash equivalence
def ==(other)
other == @data
end
# Allows us to create a Flot charts pie-graph
def as_json(opts)
@data.as_json(opts)
end
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems