Module: Iqvoc::Maker

Defined in:
lib/iqvoc/maker.rb

Class Method Summary collapse

Class Method Details

.concept(options = {}) ⇒ Object

optional arguments: concept_attributes for custom concept attributes pref_labels is an array of strings or label instances to be used as prefLabels alt_labels is an array of strings or label instances to be used as altLabels



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# File 'lib/iqvoc/maker.rb', line 82

def self.concept(options={})
  attributes = options[:concept_attributes] || {}
  pref_labels = options[:pref_labels] || []
  alt_labels = options[:alt_labels] || []

  defaults = { # NB: must use strings, not symbols as keys due to YAML
    "published_at" => 3.days.ago
  }
  attributes = defaults.merge(attributes)

  concept = Iqvoc::Concept.base_class.create!(attributes)

  pref_labels.each { |term|
    label = term.is_a?(String) ? self.label(term) : term
    Iqvoc::Concept.pref_labeling_class.
        create!(:owner => concept, :target => label)
  }
  alt_labels.each { |term|
    label = term.is_a?(String) ? self.label(term) : term
    Iqvoc::Concept.further_labeling_classes.first.first.
        create!(:owner => concept, :target => label)
  }

  return concept
end

.from_yaml(yml) ⇒ Object

labels: -

value: <string>
<attribute>: <value>
inflectionals: [<string>, ...]
components: [<label>, ...]

concepts: -

<attribute>: <value>
pref_labels: [<label>, ...]
alt_labels: [<label>, ...]
broader: <concept>
narrower: <concept>
related: [<concept>, ...]

NB:

  • <label> and <concept> can either be strings referencing a previously declared entity or objects representing a new entity XXX: The latter is not currently supported yet!

  • order of concepts matters when referencing relations

  • order of labels matters when referencing components



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# File 'lib/iqvoc/maker.rb', line 26

def self.from_yaml(yml)
  data = YAML.load(yml)

  labels = {}
  data["labels"].each { |label| # XXX: use omap to simplify format (making `value` the key instead of an attribute)?
    term = label.delete("value")

    components = label.delete("components").map { |term|
      labels[term]
    } if label["components"]

    options = {
      :inflectionals => label.delete("inflectionals"),
      :components => components,
      :label_attributes => label
    }

    labels[term] = self.label(term, options)
  } if data["labels"]

  concepts = {}
  data["concepts"].each { |concept| # XXX: use omap to simplify format (using a single pref_label as key)?
    relations = {}
    ["broader", "narrower"].each { |type| # TODO: missing related, support for poly-hierarchies
      relations[type] = concepts[concept.delete(type)] if concept[type]
    }

    lbls = {} # TODO: rename
    ["pref", "alt"].each { |type| # TODO: missing hidden
      key = "#{type}_labels"
      lbls[type] = concept.delete(key).map { |term|
        labels[term]
      } if concept[key]
    }

    options = {
      :pref_labels => lbls["pref"],
      :alt_labels => lbls["alt"],
      :concept_attributes => concept
    }

    identifier = options[:pref_labels].first.value
    concepts[identifier] = self.concept(options)
    concepts[identifier].send(Iqvoc::Concept.broader_relation_class.name.to_relation_name).
        create_with_reverse_relation(relations["broader"]) if relations["broader"]
    concepts[identifier].send(Iqvoc::Concept.broader_relation_class.narrower_class.name.to_relation_name).
        create_with_reverse_relation(relations["narrower"]) if relations["narrower"]
  } if data["concepts"]

  return { :concepts => concepts, :labels => labels }
end

.label(value, options = {}) ⇒ Object

optional arguments: label_attributes for custom label attributes inflectionals is an array of strings to be used as inflectionals components is an array of labels to be used as compound form contents



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# File 'lib/iqvoc/maker.rb', line 112

def self.label(value, options={}) # FIXME: move into SKOS-XL extension
  attributes = options[:label_attributes] || {}
  inflectionals = options[:inflectionals] || []
  components = options[:components] || []

  defaults = { # NB: must use strings, not symbols as keys due to YAML
    :value => value, # intentionally not a string; symbol takes precedence
    "origin" => Iqvoc::Origin.new(value).to_s,
    "language" => Iqvoc::Concept.pref_labeling_languages.first,
    "published_at" => 2.days.ago
  }
  attributes = defaults.merge(attributes)

  klass = Iqvoc::XLLabel rescue Iqvoc::Label # FIXME: breaks encapsulation (hard-coded iqvoc_skosxl dependency)
  label = klass.base_class.create!(attributes)

  inflectionals.each { |inf|
    label.inflectionals.create!(:value => inf)
  }

  if components.length > 0
    compound_form_contents = components.each_with_index.map { |label, i|
      CompoundForm::Content::Base.new(:label => label, :order => i)
    }
    label.compound_forms.create!(:compound_form_contents => compound_form_contents)
  end

  return label
end