Add CSV format for elearning index

app/controllers/application_controller.rb

@@ -127,4 +127,8 @@ def configure_permitted_parameters
   def allow_embedding
     response.headers.delete 'X-Frame-Options'
   end
+
+  def disable_pagination
+    params[:per_page] = 2 ** 10
+  end
 end

app/controllers/events_controller.rb

@@ -243,8 +243,4 @@ def event_params
   def event_report_params
     params.require(:event).permit(:funding, :attendee_count, :applicant_count, :trainer_count, :feedback, :notes)
   end
-
-  def disable_pagination
-    params[:per_page] = 2 ** 10
-  end
 end

app/controllers/materials_controller.rb

@@ -4,6 +4,7 @@ class MaterialsController < ApplicationController
   before_action :set_material, only: [:show, :edit, :update, :destroy, :update_collections, :clone,
                                       :add_term, :reject_term, :add_data, :reject_data]
   before_action :set_breadcrumbs
+  before_action :disable_pagination, only: :index, if: lambda { |controller| controller.request.format.csv? }
 
   include SearchableIndex
   include ActionView::Helpers::TextHelper
@@ -21,6 +22,7 @@ def index
     respond_to do |format|
       format.html { render elearning ? 'elearning_materials/index' : 'index' }
       format.json
+      format.csv { render 'elearning_materials/index' } if elearning
       format.json_api { render({ json: @materials }.merge(api_collection_properties)) }
     end
   end

app/views/elearning_materials/index.csv.erb

@@ -0,0 +1,20 @@
+<%
+  fields = [:id, :title, :url, :description, :keywords, :resource_type, :other_types, :scientific_topics, :operations, :fields, :external_resources, :doi, :licence, :version, :status, :contact, :contributors, :authors, :difficulty_level, :target_audience, :prerequisites, :syllabus, :learning_objectives, :subsets, :date_created, :date_modified, :date_published, :created_at, :updated_at].freeze
+%>
+<%= (['TeSS URL'] + fields.map { |f| Material.human_attribute_name(f) }).to_csv(row_sep: nil) %>
+<% @index_resources.each do |material| %>
+<%= ([material_url(material)] + fields.map do |f|
+  value = material.send(f)
+  value = value.map do |v|
+    case v
+    when OntologyTerm
+      v.label
+    when ExternalResource
+      v.url
+    else
+      v
+    end
+  end.join(', ') if value.respond_to?(:each)
+  value
+end).to_csv(row_sep: nil).html_safe %>
+<% end %>

test/controllers/materials_controller_test.rb

@@ -1427,4 +1427,18 @@ class MaterialsControllerTest < ActionController::TestCase
       end
     end
   end
+
+  test 'should get e-learning index as csv' do
+    with_settings(solr_enabled: true, feature: { elearning_materials: true }) do
+      Material.stub(:search_and_filter, MockSearch.new(Material.all)) do
+        get :index, params: { resource_type: 'e-learning', format: :csv }
+
+        assert_response :success
+      end
+    end
+
+    csv = CSV.parse(@response.body, headers: true)
+    assert_equal Material.count, csv.length
+    assert csv.any? { |row| row[0] == material_url(@material) }
+  end
 end