Passing arguments while debugging

Question

I'm attempting to debug a Ruby script, but I am unable to access one method as seen below.

  def move_objects(target_folder)
    s3_objects.each do |obj|
      binding.pry
      new_key = s3_folder ? obj.key.sub(s3_folder, target_folder) : "#{target_folder}/#{obj.key}"
      obj.put(metadata: { 'new_key' => 'ok' })
      obj.move_to(bucket: bucket_name, key: new_key)
    end
    self
  end

When I call the method as so in Rails C:

 Courts::Aws::S3Util.new('bucket_name').move_objects(target_folder)

I receive the following error.

NameError: undefined local variable or method `target_folder' for main:Object

What is the appropriate way to access this function to debug and read the new_key data?

Answer 1

You should initialize target_folder variable before passing it as an argument to the method

target_folder = "target-folder-name"   # Initialize with appropriate folder name or leave it empty "" (i.e., target_folder = "")

Courts::Aws::S3Util.new('bucket_name').move_objects(target_folder)

Answer 2

Have you tried wrapping the method around a begin / rescue block ?

def move_objects(target_folder)
  begin
    s3_objects.each do |obj|
      binding.pry
      new_key = s3_folder ? obj.key.sub(s3_folder, target_folder) : "#{target_folder}/#{obj.key}"
      obj.put(metadata: { 'new_key' => 'ok' })
      obj.move_to(bucket: bucket_name, key: new_key)
    end
    self
  rescue => e
    binding.pry
  end
end