module LibrariesHelper
  def show_library_tags(library, opts = {})
    html = ''
    library.library_tags.each do |tag|
      klass = "edu-filter-btn fl cdefault #{library_tag_class(tag)} #{opts[:class]}"
      html += content_tag(:span, tag.name, class: klass)
    end

    raw html
  end

  def library_tag_class(tag)
    case tag.name
    when '优秀案例' then 'edu-activity-red'
    when '入库案例' then 'edu-activity-blue'
    end
  end
end