gistfile1.txt

    ActiveRecord::Base.connection.execute("delete from article_info where article_id = 1")
    article_infos = ArticleInfo.find_all_by_article_id(1)
    article_infos.size.should == 0
    article_copy1 = Article.find(1)
    puts "article_info1: #{article_copy1.article_info}"
    article_copy2 = Article.find(1)
    puts "article_info2: #{article_copy2.article_info}"
    article_copy1.last_slide = 1
    article_copy2.last_slide = 2

    article_copy1.save
    article_copy2.save

    article_infos = ArticleInfo.find_all_by_article_id(1)
    article_infos.size.should == 2