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actionpack-3.0.6/lib/action_view/helpers/form_tag_helper.rb
def select_tag(name, option_tags = nil, options = {})
if Array === option_tags
ActiveSupport::Deprecation.warn 'Passing an array of option_tags to select_tag implicitly joins them without marking them as HTML-safe. Pass option_tags.join.html_safe instead.', caller
end
html_name = (options[:multiple] == true && !name.to_s.ends_with?("[]")) ? "#{name}[]" : name
if blank = options.delete(:include_blank)
if blank.kind_of?(String)
option_tags = "<option value=\"\">#{blank}</option>".html_safe + option_tags
else
option_tags = "<option value=\"\"></option>".html_safe + option_tags
end
end
content_tag :select, option_tags, { "name" => html_name, "id" => sanitize_to_id(name) }.update(options.stringify_keys)
end
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