Skip to content
This repository

Cobol to Decimal #101

Open
jwg2s opened this Issue July 16, 2012 · 5 comments

2 participants

John Gerhardt Thibaut Barrère
John Gerhardt
jwg2s commented July 16, 2012

Here's an example of converting Cobol to Decimal if it could be useful.

  class CobolToDecimalTransform < ExtractTransferLoad::Transform
    # Initialize the transformer.
    #
    # Configuration options:
    # * <tt>:significant</tt>: The number of significant decimal digits.
    # * <tt>:places</tt>: The number of implied decimal places.
    def initialize(control, name, configuration={})
      super
      @significant = configuration[:significant] ||= 0
      @places = configuration[:places] ||= 0
    end
    # Transform the value
    def transform(name, value, row)
      return value if value.nil?
      decimal = BigDecimal.new(value.to_s, @significant)
      @places.times do |x|
        decimal = decimal / 10
      end
      decimal
    end
  end
Thibaut Barrère
Owner
thbar commented July 16, 2012

Hi John! By COBOL, do you mean fixed point arithmetic stored as integers? (can you provide example of input data?)

I think this could go to a contrib area or something.

John Gerhardt
jwg2s commented July 16, 2012

That's exactly what I meant. An exmaple would be:

Format: 9(4)v9(3)
Value: 1249204
After Transform: 1249.204

Example usage:
transform field, :cobol_to_decimal, :significant => 7, :decimal => 3

Thibaut Barrère
Owner
thbar commented July 16, 2012

Thanks for contributing that!

Although it's too specific for being added to the core, I definitely want to track down this kind of examples.

It makes me remember I have a repo with contributions like this one over there.

I could move the repo to the activewarehouse organization; then you could add this transform over there (with specs maybe?)

What do you think?

John Gerhardt
jwg2s commented July 16, 2012

Sure, I'd be happy to do that.

Thibaut Barrère
Owner
thbar commented July 17, 2012

Cool! Just moved the etl-goodies repo here:

https://github.com/activewarehouse/etl-goodies

Can you issue a pull-request from there?

If you can add specs too, it would be perfect (otherwise I'll write them!).

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Something went wrong with that request. Please try again.