How to replace a string/character in topic title?

Product Support
16

thanks @pfaffman , @zogstrip

it has been solved as suggested, and I only needed to put space in the find code:

Topic.where("title LIKE '% %'").find_each do |topic|
  topic.title.gsub!(/-/," ")
  topic.fancy_title.gsub!(/-/," ")
  topic.slug.gsub!(/-/," ")
  puts topic.title
  begin
    topic.save!
  rescue
    puts "oops, something broke."
  end
end