app/models/concept/skos/base.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::Base < Concept::Base
self.rdf_namespace = 'skos'
self.rdf_class = 'Concept'
def build_rdf_subject(&block)
ns = IqRdf::Namespace.find_namespace_class(self.rdf_namespace)
raise "Namespace '#{self.rdf_namespace}' is not defined in IqRdf document." unless ns
subject = IqRdf.build_uri(self.origin, ns.build_uri(self.rdf_class), &block)
# ensure skos:Concept type is present
unless self.rdf_namespace == 'skos' && self.rdf_class == 'Concept'
subject.Rdf.build_predicate('type', IqRdf::Skos.build_uri('Concept'))
end
return subject
end
def self.recent(limit = 5)
self
.published
.not_expired
.joins(:notes => :annotations)
.where(note_annotations: { predicate: 'created' })
.order('note_annotations.value DESC')
.limit(limit)
end
end