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Contents
module GovukPublishingComponents
module AppHelpers
class TaxonBreadcrumbs
# @param content_item A taxon
def initialize(content_item)
@content_item = TaxonBreadcrumbs::ContentItem.new(content_item)
end
# Generate a breadcrumb trail for a taxon, using the taxon_parent link field
#
# @return [Hash] Payload for the GOV.UK breadcrumbs component
# @see https://govuk-component-guide.herokuapp.com/components/breadcrumbs
def breadcrumbs
ordered_parents = all_parents.map.with_index do |parent, index|
{
title: parent.title,
url: parent.base_path,
is_page_parent: index.zero?,
}
end
ordered_parents << {
title: "Home",
url: "/",
is_page_parent: ordered_parents.empty?,
}
ordered_parents.reverse
end
private
attr_reader :content_item
def all_parents
parents = []
direct_parent = content_item.parent_taxon
while direct_parent
parents << direct_parent
direct_parent = direct_parent.parent_taxon
end
parents
end
class ContentItem
attr_reader :content_item
def initialize(content_item)
@content_item = content_item
end
def parent_taxon
@parent_taxon ||= begin
parent_content_item = content_item.dig("links", "parent_taxons", 0)
ContentItem.new(parent_content_item) unless parent_content_item.nil?
end
end
def phase_is_live?(taxon)
taxon["phase"] == "live"
end
def title
content_item.fetch("title")
end
def base_path
content_item.fetch("base_path")
end
end
end
end
end
Version data entries
448 entries across 448 versions & 1 rubygems