Class: Labeling::SKOS::Base

Inherits:
Base
  • Object
show all
Defined in:
app/models/labeling/skos/base.rb

Overview

Copyright 2011-2013 innoQ Deutschland GmbH

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Direct Known Subclasses

AltLabel, HiddenLabel, PrefLabel

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.build_from_rdf(rdf_subject, rdf_predicate, rdf_object) ⇒ Object 



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# File 'app/models/labeling/skos/base.rb', line 134

def self.build_from_rdf(rdf_subject, rdf_predicate, rdf_object)
  unless rdf_subject.is_a?(Concept::Base)
    raise "#{self.name}#build_from_rdf: Subject (#{rdf_subject}) must be a Concept."
  end

  unless rdf_object =~ RDFAPI::LITERAL_REGEXP
    raise InvalidStringLiteralError, "#{self.name}#build_from_rdf: Object (#{rdf_object}) must be a string literal"
  end

  lang = $3
  value = begin
    JSON.parse(%Q{["#{$1}"]})[0].gsub('\\n', "\n") # Trick to decode \uHHHHH chars
  rescue JSON::ParserError
    $1
  end

  predicate_class = RDFAPI::PREDICATE_DICTIONARY[rdf_predicate] || self
  predicate_class.new(target: self.label_class.new(value: value, language: lang)).tap do |labeling|
    rdf_subject.send(predicate_class.name.to_relation_name) << labeling
  end
end

.by_label_with_language(label, language) ⇒ Object

********** Scopes



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# File 'app/models/labeling/skos/base.rb', line 26

def self.by_label_with_language(label, language)
  includes(:target).merge(self.label_class.where(value: label, language: language))
end

.edit_partial_name(obj) ⇒ Object 



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# File 'app/models/labeling/skos/base.rb', line 40

def self.edit_partial_name(obj)
  'partials/labeling/skos/edit_base'
end

.label_class ⇒ Object

********** Methods



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# File 'app/models/labeling/skos/base.rb', line 32

def self.label_class
  Iqvoc::Label.base_class
end

.partial_name(obj) ⇒ Object 



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# File 'app/models/labeling/skos/base.rb', line 36

def self.partial_name(obj)
  'partials/labeling/skos/base'
end

.search_result_partial_name ⇒ Object 



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# File 'app/models/labeling/skos/base.rb', line 130

def self.search_result_partial_name
  'partials/labeling/skos/search_result'
end

.single_query(params = {}) ⇒ Object 



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# File 'app/models/labeling/skos/base.rb', line 44

def self.single_query(params = {})
  query_str = build_query_string(params)

  scope = includes(:target).order(Arel.sql("LENGTH(#{Label::Base.table_name}.value), #{Label::Base.table_name}.value ASC"))
  languages = Array(params[:languages])

  if params[:query].present?
    scope = scope.
      merge(Label::Base.by_query_value(query_str).by_language(languages).published).
      references(:labels)
  else
    scope = scope.merge(Label::Base.by_language(languages).published).
      references(:labels)
  end

  if params[:collection_origin].present?
    collection = Iqvoc::Collection.base_class.where(origin: params[:collection_origin]).last
    if collection
      scope = scope.includes(owner: :collection_members)
      scope = scope.where("#{Collection::Member::Base.table_name}.collection_id" => collection.id)
      scope = scope.references(:collection_members)
    else
      raise "Collection with Origin #{params[:collection_origin]} not found!"
    end
  end
  scope = scope.includes(:owner)

  scope = case params[:for]
          when 'concept'
            scope.merge(Iqvoc::Concept.base_class.published)
          when 'collection'
            scope.merge(Iqvoc::Collection.base_class.published)
          else
            # no additional conditions
            scope
          end

  scope = if params[:include_expired]
            scope.merge(Concept::Base.not_expired).or(scope.merge(Concept::Base.expired))
          else
            scope.merge(Concept::Base.not_expired)
          end

  if params[:change_note_date_from].present? || params[:change_note_date_to].present?
    change_note_relation = Iqvoc.change_note_class_name.to_relation_name
    concepts = Concept::Base.base_class.published
                            .includes(change_note_relation.to_sym => :annotations)
                            .references(change_note_relation)
                            .references('note_annotations')

    # change note type filtering
    concepts = case params[:change_note_type]
               when 'created'
                 concepts.where('note_annotations.predicate = ?', 'created')
               when 'modified'
                 concepts.where('note_annotations.predicate = ?', 'modified')
               else
                 concepts.where('note_annotations.predicate = ? OR note_annotations.predicate = ?', 'created', 'modified')
               end

    if params[:change_note_date_from].present?
      begin
        DateTime.parse(params[:change_note_date_from])
        date_from = params[:change_note_date_from]
        concepts = concepts.where('note_annotations.value >= ?', date_from)
      rescue ArgumentError
        Rails.logger.error "Invalid date was entered for search"
      end
    end

    if params[:change_note_date_to].present?
      begin
        date_to = DateTime.parse(params[:change_note_date_to]).end_of_day.to_s
        concepts = concepts.where('note_annotations.value <= ?', date_to)
      rescue ArgumentError
        Rails.logger.error "Invalid date was entered for search"
      end
    end

    scope = scope.includes(:owner).merge(concepts)
  end

  scope = yield(scope) if block_given?
  scope.map { |result| SearchResult.new(result) }
end

Instance Method Details

#build_rdf(document, subject) ⇒ Object 



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# File 'app/models/labeling/skos/base.rb', line 156

def build_rdf(document, subject)
  subject.send(self.rdf_namespace.camelcase).send(self.rdf_predicate, target.value.to_s, lang: target.language)
end

#build_search_result_rdf(document, result) ⇒ Object 



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# File 'app/models/labeling/skos/base.rb', line 160

def build_search_result_rdf(document, result)
  result.Sdc::link(IqRdf.build_uri(owner.origin))
  build_rdf(document, result)
end