method
tag_options
tag_options(options, escape = true)
private
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# File actionpack/lib/action_view/helpers/tag_helper.rb, line 131 def tag_options(options, escape = true) unless options.blank? attrs = [] options.each_pair do |key, value| if key.to_s == 'data' && value.is_a?(Hash) value.each do |k, v| if !v.is_a?(String) && !v.is_a?(Symbol) v = v.to_json end v = ERB::Util.html_escape(v) if escape attrs << %(data-#{k.to_s.dasherize}="#{v}") end elsif BOOLEAN_ATTRIBUTES.include?(key) attrs << %(#{key}="#{key}") if value elsif !value.nil? final_value = value.is_a?(Array) ? value.join(" ") : value final_value = ERB::Util.html_escape(final_value) if escape attrs << %(#{key}="#{final_value}") end end " #{attrs.sort * ' '}".html_safe unless attrs.empty? end end