Class: Concepts::HierarchicalController

Inherits:
ConceptsController
  • Object
show all
Defined in:
app/controllers/concepts/hierarchical_controller.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.

Instance Method Summary collapse

Instance Method Details

#index ⇒ Object 



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# File 'app/controllers/concepts/hierarchical_controller.rb', line 18

def index
  base_class = Iqvoc::Concept.base_class

  if params[:published] == '0'
    authorize! :update, base_class
  else
    authorize! :read, base_class
  end

  scope = base_class.includes(base_class.default_includes + [:pref_labels]).order('labels.value')
  scope = params[:published] == '0' ? scope.published_with_newer_versions : scope.published

  # only select unexpired concepts
  scope = scope.not_expired

  # unrelated concepts for sidebar
  # TODO: order parentless concepts
  @loose_concepts = scope.parentless.includes(:pref_labels).page(params[:page])

  # if params[:broader] is given, the action is handling the reversed tree
  root_id = params[:root]
  if root_id && root_id =~ /\d+/
    # NB: order matters; see the following `where`
    if params[:broader]
      scope = scope.includes(:narrower_relations, :broader_relations).references(:relations)
    else
      scope = scope.includes(:broader_relations, :narrower_relations).references(:relations)
    end
    @concepts = scope.where(Concept::Relation::Base.arel_table[:target_id].eq(root_id))
  else
    if params[:broader]
      @concepts = scope.broader_tops.includes(:broader_relations).references(:concepts)
    else
      @concepts = scope.tops.includes(:narrower_relations).references(:concepts)
    end
  end

  respond_to do |format|
    format.html
    format.json do # Treeview data
      concepts = @concepts.select { |c| can? :read, c }.map do |c|
        url = (c.published?) ? concept_path(id: c, format: :html) : concept_path(id: c, format: :html, published: 0)

        load_on_demand = if params[:published] == '0'
                           params[:broader] ? c.broader_relations.any? : c.narrower_relations.any?
                         else
                           params[:broader] ? c.broader_relations.published.any? : c.narrower_relations.published.any?
                         end

        {
          id: c.id,
          label: CGI.escapeHTML(c.pref_label.to_s),
          additionalText: (" (#{c.additional_info})" if c.additional_info.present?),
          load_on_demand: load_on_demand,
          url: url,
          update_url: move_concept_url(c),
          glance_url: glance_concept_url(c, format: :html),
          published: (c.published?) ? true : false
        }
      end
      render json: concepts
    end
  end
end