This post originated from an RSS feed registered with Ruby Buzz by Red Handed. Original Post: Thin Strand of Search-and-Replace Rails Feed Title: RedHanded Feed URL: http://redhanded.hobix.com/index.xml Feed Description: sneaking Ruby through the system Latest Ruby Buzz Posts Latest Ruby Buzz Posts by Red Handed Latest Posts From RedHanded

If you’re playing with Rails and you want to better understand Ruby blocks, as well as method chaining, Matthew Bohnsack has a great one-liner, which boils to:

  Article.find_all.each { |a| a.body.gsub! \
    /src="\/(.*.(jpg|gif|png))/, 'src=\"http://bohnsack.com\1';
    a.save }

More like three or four lines, but still. He breaks it up, explains each part, with short paragraph-long lessons. I like how code like the above has the feeling of a sed recipe, but isn’t utterly cryptic.