aantix

model     = Object::const_get(ARGV[0])
rows      = model.find(:all)

# Any columns you don't want output, list here as symbols
# e.g. BLACKLIST = [:user_id, :workout_id]
BLACKLIST = []

# Any columns that you'd like to rename on the output, list in this hash
#  e.g. TRANSFORM = {:percentOfMax => :percent_of_max}
TRANSFORM = {}

mattwynne

RSpec::Matchers.define(:be_same_file_as) do |exected_file_path|
  match do |actual_file_path|
    expect(md5_hash(actual_file_path)).to eq(md5_hash(expected_file_path))
  end
  
  def md5_hash(file_path)
    Digest::MD5.hexdigest(File.read(file_path))    
  end
end

smsohan

#the new tap method of ruby will always return itself, but lets you play with!
data = (1..10).to_a
data.tap{|x| print x}.to_a.join(', ')
p


#alias will redirect method calls to method with a different name, useful for api changing
class SomeClass  
  def new_method(x)
    p "The value is #{x}"