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Contents
# frozen_string_literal: true
module Blacklight
module Hierarchy
class FacetTree
def self.build(prefix:, facet_display:, facet_field:)
new(prefix: prefix, facet_display: facet_display, facet_field: facet_field).build
end
def initialize(prefix:, facet_display:, facet_field:)
@prefix = prefix
@facet_config = facet_display.dig(:hierarchy, prefix)
@facet_field = facet_field
end
attr_reader :prefix, :facet_config, :data
def build
return unless facet_config
{}.tap do |tree|
facet_config.first.each do |key|
# TODO: remove baked in notion of underscores being part of the blacklight facet field names
facet_field = [prefix, key].compact.join('_')
tree[facet_field] ||= {}
data = @facet_field.display_facet
next if data.nil?
data.items.each do |facet_item|
path = facet_item.value.split(split_regex)
loc = tree[facet_field]
loc = loc[path.shift] ||= {} while path.length > 0
loc[:_] = HierarchicalFacetItem.new(facet_item.value, facet_item.value.split(split_regex).last, facet_item.hits)
end
end
end
end
def split_regex
@split_regex ||= Regexp.new("\s*#{Regexp.escape(facet_config.length >= 2 ? facet_config[1] : ':')}\s*")
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems