paramsをhiddenにする
def params2hidden(_params, name, options = {})
hidden_tags = []
case
when _params.is_a?(Hash)
_params.map do |key, value|
hidden_tags += params2hidden(value, "#{name}[#{key}]", options)
end
when _params.is_a?(Array)
_params.map do |value|
hidden_tags += params2hidden(value, "#{name}[]", options)
end
when _params.is_a?(String) || _params.is_a?(Symbol)
hidden_tags << hidden_field_tag(name, _params, options)
end
return hidden_tags
end