def index_field_link(options)
      raise ArgumentError unless options[:config] && options[:config][:field_name]
      name = options[:config][:field_name]
      links = options[:value].map { |item| link_to_field(name, item, item) }
      safe_join(links, ", ")
    end
def index_field_link(options)
      raise ArgumentError unless options[:config] && options[:config][:field_name]
      name = options[:config][:field_name]
      links = options[:value].map { |item| link_to_field(name, item, item) }
      safe_join(links, ", ")
    end
A Blacklight helper_method
 @param options [Hash{Symbol=>Object}] Blacklight sends :document, :field, :config, :value and whatever else was in options
 @option options [Array{String}] :value
 @option options [Hash] :config including {:field_name => "my_name"}
 @option options [Hash] :document
 @option options [Array{String}] :value the strings you might otherwise have passed to this method singly
 @return [ActiveSupport::SafeBuffer] the html_safe link