Sha256: 5ccceda70c0867652f190a4b97802c5b9d3ec121ca85ff6b5dfa543f55e4ff04
Contents?: true
Size: 1004 Bytes
Versions: 13
Compression:
Stored size: 1004 Bytes
Contents
module Blacklight
# Create <link rel="alternate"> links from a documents dynamically
class LinkAlternatePresenter
include ActionView::Helpers::OutputSafetyHelper
include ActionView::Helpers::TagHelper
def initialize(controller, document, options)
@controller = controller
@document = document
@options = { unique: false, exclude: [] }.merge(options)
end
attr_reader :controller, :document, :options
# Renders links to alternate representations
# provided by export formats. Returns empty string if no links available.
def render
seen = Set.new
safe_join(document.export_formats.map do |format, spec|
next if options[:exclude].include?(format) || (options[:unique] && seen.include?(spec[:content_type]))
seen.add(spec[:content_type])
tag(:link, rel: "alternate", title: format, type: spec[:content_type], href: controller.polymorphic_url(document, format: format))
end.compact, "\n")
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems