Class: AffiliateWindow::ETL::Transformer

Inherits:
Object
  • Object
show all
Defined in:
lib/affiliate_window/etl/transformer.rb

Overview

rubocop:disable Metrics/ClassLength

Defined Under Namespace

Classes: TypeError

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(normaliser:) ⇒ Transformer

Returns a new instance of Transformer.



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# File 'lib/affiliate_window/etl/transformer.rb', line 6

def initialize(normaliser:)
  self.normaliser = normaliser
end

Instance Attribute Details

#normaliser ⇒ Object

Returns the value of attribute normaliser.



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# File 'lib/affiliate_window/etl/transformer.rb', line 4

def normaliser
  @normaliser
end

Instance Method Details

#transform(record) ⇒ Object 



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# File 'lib/affiliate_window/etl/transformer.rb', line 10

def transform(record)
  record = record.dup
  record_type = record.fetch(:record_type)

  transformed_records = []

  case record_type
  when :merchant
    normalise_commision_ranges!(record, transformed_records)
    normalise_sectors!(record, transformed_records)
  when :transaction
    normalise_transaction_parts!(record, transformed_records)
  when :transaction_product
    normalise_transaction_products!(record, transformed_records)

    # transaction_product has no other top-level attributes
    return transformed_records
  end

  attributes = infer_field_names(record)
  transformed_records.push(attributes)
end