Class: Sufia::Arkivo::MetadataMunger

Inherits:
Object
  • Object
show all
Defined in:
lib/sufia/arkivo/metadata_munger.rb

Instance Method Summary collapse

Constructor Details

#initialize(metadata) ⇒ MetadataMunger

Returns a new instance of MetadataMunger.



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# File 'lib/sufia/arkivo/metadata_munger.rb', line 15

def initialize(metadata)
  @metadata = metadata
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/sufia/arkivo/metadata_munger.rb', line 19

def call
  munged = {}

  # First, normalize camelCase symbols to underscore strings
  @metadata.each do |key, value|
    munged[key.to_s.underscore] = Array(value)
  end

  # Then, rename the url key to related_url
  munged['related_url'] = munged.delete('url') if munged['url']

  # Then, rename the tags key to tag
  munged['tag'] = munged.delete('tags') if munged['tags']

  # Then, normalize creator names
  munged_creators = munged['creators'].each do |entry|
    next if entry['name']
    entry['name'] = "#{entry.delete('lastName')}, #{entry.delete('firstName')}".strip
  end

  # Then, parse creators and contributors out
  creator_names = munged_creators.select { |c| Sufia::Arkivo::CREATOR_TYPES.include? c['creatorType'] }.map { |c| c['name'] }
  contributor_names = munged_creators.select { |c| Sufia::Arkivo::CONTRIBUTOR_TYPES.include? c['creatorType'] }.map { |c| c['name'] }
  munged['creator'] = creator_names unless creator_names.blank?
  munged['contributor'] = contributor_names unless contributor_names.blank?

  # And remove the original creators array
  munged.delete('creators') if munged['creators']
  munged
end