app/models/concept/skos/scheme.rb
# encoding: UTF-8
# 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.
class Concept::SKOS::Scheme < Concept::Base
private_class_method :new
after_update :redeclare_top_concepts
def self.rdf_class
'ConceptScheme'
end
def self.rdf_predicate
'topConceptOf'
end
def self.rdf_namespace
'skos'
end
def self.build_from_rdf(rdf_subject, rdf_predicate, rdf_object)
rdf_subject.update_attribute :top_term, true
end
def self.instance
first_or_create!(origin: 'scheme', published_at: Time.now)
end
def self.create(attributes = nil, &block)
raise TypeError, 'Singleton' if first
super
end
def self.create!(attributes = nil, &block)
raise TypeError, 'Singleton' if first
super
end
def build_rdf_subject(&block)
ns = IqRdf::Namespace.find_namespace_class(self.class.rdf_namespace.to_sym)
raise "Namespace '#{rdf_namespace}' is not defined in IqRdf document." unless ns
IqRdf.build_uri(origin, ns.build_uri(self.class.rdf_class), &block)
end
def top_concepts
Iqvoc::Concept.base_class.tops
end
def inline_top_concept_origins=(origins)
@inline_top_concept_origins = origins.to_s.
split(InlineDataHelper::SPLITTER).map(&:strip)
end
def inline_top_concept_origins
@inline_top_concept_origins || top_concepts.map { |c| c.origin }.uniq
end
def inline_top_concepts
if @inline_top_concept_origins
Iqvoc::Concept.base_class.editor_selectable.where(origin: @inline_top_concept_origins)
else
top_concepts.select { |c| c.editor_selectable? }
end
end
def redeclare_top_concepts
return if inline_top_concept_origins.nil? # There is nothing to do
Iqvoc::Concept.base_class.transaction do
Iqvoc::Concept.base_class.tops.update_all top_term: false
Iqvoc::Concept.base_class.where(origin: @inline_top_concept_origins).update_all(top_term: true)
end
end
def mono_hierarchy?
Iqvoc::Concept.broader_relation_class.new.kind_of?(
Concept::Relation::SKOS::Broader::Mono
)
end
def poly_hierarchy?
!mono_hierarchy?
end
end