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Refactor logging

Russ Olsen - Eloquent Ruby - 226

class SomeApplication
def do_something
with_logging('load') { @doc = Document.load( 'resume.txt' ) }

Do something with the document...

with_logging('save') { @doc.save }
end

Rest of the class omitted...

def with_logging(description)
begin
@logger.debug( "Starting #{description}" )
yield
@logger.debug( "Completed #{description}" )
rescue
@logger.error( "#{description} failed!!")
raise
end
end
end

...

Refactor news download

Russ Olsen - Eloquent Ruby - 238
Chapter 19. Save Blocks to Execute Later

class BlockBasedArchivalDocument
attr_reader :title, :author
def initialize(title, author, &block)
@title = title
@author = author
@initializer_block = block
end
def content
if @initializer_block
@content = @initializer_block.call
@initializer_block = nil
238 Chapter 19. Save Blocks to Execute Later
From <www.wowebook.com>
end
@content
end
end

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