Module: Kiba::Extend::Transforms::Normalizable

Included in:
Deduplicate::FieldGroup, Deduplicate::GroupedFieldValues
Defined in:
lib/kiba/extend/transforms/normalizable.rb

Overview

Mixin module for transform classes to add a @normalizer instance variable that sets up an instance of Utils::StringNormalizer

Testing

This mixin’s funtionality is tested in Deduplicate::GroupedFieldValues and Deduplicate::FieldGroup. It is not imperative to test in in every additional transform class where it may be used.

Usage

In class definition:

include Normalizable

Any transform classes mixing in this module must have the following local variables present from where the prepare_normalizer method is called.

  • ignore_case: Boolean
  • normalize: Hash to be passed to StringNormalizer

In your initialize method, add the following line:

 @normalizer = prepare_normalizer(ignore_case, normalize)

Instance Method Summary collapse

Instance Method Details

#get_norm_args(ignore_case, normalize) ⇒ Object 



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# File 'lib/kiba/extend/transforms/normalizable.rb', line 46

def get_norm_args(ignore_case, normalize)
  return normalize if !ignore_case && normalize
  return {xforms: [:lower]} if ignore_case && !normalize

  unless normalize.key?(:xforms)
    normalize[:xforms] = []
  end
  unless normalize[:xforms].include?(:lower)
    normalize[:xforms] << :lower
  end
end

#prepare_normalizer(ignore_case, normalize) ⇒ Object 



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# File 'lib/kiba/extend/transforms/normalizable.rb', line 39

def prepare_normalizer(ignore_case, normalize)
  return nil if !ignore_case && !normalize

  norm_args = get_norm_args(ignore_case, normalize)
  Utils::StringNormalizer.new(**norm_args)
end