test_migration.rb

def check_image(url)
  uri = URI(url)
  request = Net::HTTP.new uri.host
  response= request.request_head uri.path
  return response.code.to_i == 200
end

@count = 0
Image.all.each do |i|
       str = i.original
     if str.include?('dpjnlniaq')
       @success = []
       @fail = []
       puts "------ #{str} --------"
       newstr = str.gsub(/dpjnlniaq/,'shopo')
       puts "------New-----#{newstr}---------"
       puts "#### Now at #{@count} #################"
       if check_image(newstr)
          @success << i.id
       else
          @fail << i.id
       end
       @count += 1
     else
        puts "**** Not menthols cloud******"
     end
end