Remove specialist topic code

app/controllers/editions_controller.rb

@@ -396,7 +396,6 @@ def tagging_update_form_params
       :previous_version,
       :parent,
       mainstream_browse_pages: [],
-      topics: [],
       organisations: [],
       meets_user_needs: [],
       ordered_related_items: [],

app/lib/tagging/linkables.rb

@@ -8,10 +8,6 @@
 # to use `content_id`, we may move this functionality into a gem.
 module Tagging
   class Linkables
-    def topics
-      @topics ||= for_nested_document_type("topic")
-    end
-
     def taxons
       @taxons ||= for_document_type("taxon")
     end

app/lib/tagging/tagging_update_form.rb

@@ -1,7 +1,7 @@
 module Tagging
   class TaggingUpdateForm
     include ActiveModel::Model
-    attr_accessor :content_id, :previous_version, :topics, :organisations, :meets_user_needs, :mainstream_browse_pages, :ordered_related_items, :parent
+    attr_accessor :content_id, :previous_version, :organisations, :meets_user_needs, :mainstream_browse_pages, :ordered_related_items, :parent
 
     validate :ordered_related_items_paths_exist
 
@@ -11,7 +11,6 @@ def self.build_from_publishing_api(content_id, locale)
       new(
         content_id:,
         previous_version: link_set.version,
-        topics: link_set.links["topics"],
         organisations: link_set.links["organisations"],
         meets_user_needs: link_set.links["meets_user_needs"],
         mainstream_browse_pages: link_set.links["mainstream_browse_pages"],
@@ -30,7 +29,6 @@ def publish!
 
     def links_payload
       {
-        topics: clean_content_ids(topics),
         organisations: clean_content_ids(organisations),
         meets_user_needs: clean_content_ids(meets_user_needs),
         mainstream_browse_pages: clean_content_ids(mainstream_browse_pages),

app/presenters/organisation_content_presenter.rb

@@ -8,7 +8,6 @@ def initialize(scope = Artefact.where(owning_app: "publisher"))
       slug
       state
       browse_pages
-      topics
       organisations
     ]
   end
@@ -27,8 +26,6 @@ def get_value(header, artefact)
     case header
     when :browse_pages
       expanded_links(content_id, %w[mainstream_browse_pages base_path], /\/browse\//)
-    when :topics
-      expanded_links(content_id, %w[topics base_path], /\/topic\//)
     when :organisations
       expanded_links(content_id, %w[organisations title])
     when :format

app/views/shared/_tagging.html.erb

@@ -43,24 +43,6 @@
           </p>
         </div>
 
-        <div class="form-group" id="edition_topics_input">
-          <%= f.label :topics, "Specialist topic pages", class: 'control-label' %>
-          <%= f.select :topics, @linkables.topics,
-                       {},
-                       { multiple: true,
-                         class: 'select2',
-                         data: { placeholder: 'Choose Topics…' } } %>
-
-          <p class='help-block'>
-            Specialist topic pages live under <a href="https://www.gov.uk/topic">/topic</a>.
-            They contain collections of pages on GOV.UK. Example:
-            <a href="https://www.gov.uk/topic/business-tax">Business Tax</a> or
-            <a href="https://www.gov.uk/topic/animal-welfare/pets">Animal Welfare / Pets</a>.
-            Tagging a page to a specialist topic will send out an
-            <a href="https://www.gov.uk/topic/business-tax/vat/email-signup">email alert to subscribers</a>.
-          </p>
-        </div>
-
         <div class="form-group" id="edition_organisations_input">
           <%= f.label :organisations, "Organisations", class: 'control-label' %>
           <%= f.select :organisations, @linkables.organisations,

test/integration/tagging_test.rb

@@ -24,7 +24,6 @@ class TaggingTest < JavascriptIntegrationTest
       assert_publishing_api_patch_links(
         @content_id,
         links: {
-          topics: [],
           organisations: [],
           meets_user_needs: [],
           mainstream_browse_pages: %w[CONTENT-ID-RTI CONTENT-ID-VAT],
@@ -35,27 +34,6 @@ class TaggingTest < JavascriptIntegrationTest
       )
     end
 
-    should "tag to topics" do
-      visit_edition @edition
-      switch_tab "Tagging"
-
-      select2 "Oil and Gas / Fields", "Oil and Gas / Distillation (draft)", from: "Specialist topic pages"
-
-      save_tags_and_assert_success
-      assert_publishing_api_patch_links(
-        @content_id,
-        links: {
-          topics: %w[CONTENT-ID-DISTILL CONTENT-ID-FIELDS],
-          organisations: [],
-          meets_user_needs: [],
-          mainstream_browse_pages: [],
-          ordered_related_items: [],
-          parent: [],
-        },
-        previous_version: 0,
-      )
-    end
-
     should "tag to organisations" do
       visit_edition @edition
       switch_tab "Tagging"
@@ -66,7 +44,6 @@ class TaggingTest < JavascriptIntegrationTest
       assert_publishing_api_patch_links(
         @content_id,
         links: {
-          topics: [],
           organisations: %w[9a9111aa-1db8-4025-8dd2-e08ec3175e72],
           meets_user_needs: [],
           mainstream_browse_pages: [],
@@ -87,7 +64,6 @@ class TaggingTest < JavascriptIntegrationTest
       assert_publishing_api_patch_links(
         @edition.artefact.content_id,
         links: {
-          topics: [],
           organisations: [],
           meets_user_needs: %w[CONTENT-ID-USER-NEED],
           mainstream_browse_pages: [],
@@ -147,7 +123,6 @@ class TaggingTest < JavascriptIntegrationTest
       assert_publishing_api_patch_links(
         @content_id,
         links: {
-          topics: [],
           organisations: [],
           meets_user_needs: [],
           mainstream_browse_pages: [],
@@ -178,7 +153,6 @@ class TaggingTest < JavascriptIntegrationTest
       assert_publishing_api_patch_links(
         @content_id,
         links: {
-          topics: [],
           organisations: [],
           meets_user_needs: [],
           mainstream_browse_pages: [],
@@ -196,13 +170,6 @@ class TaggingTest < JavascriptIntegrationTest
                    body: {
                      "content_id" => @content_id,
                      "expanded_links" => {
-                       "topics" => [
-                         {
-                           "content_id" => "CONTENT-ID-WELLS",
-                           "base_path" => "/topic/oil-and-gas/wells",
-                           "internal_name" => "Oil and Gas / Wells",
-                         },
-                       ],
                        "mainstream_browse_pages" => [
                          {
                            "content_id" => "CONTENT-ID-RTI",
@@ -226,14 +193,12 @@ class TaggingTest < JavascriptIntegrationTest
       select2 "Tax / RTI (draft)", "Tax / VAT", from: "Mainstream browse pages"
 
       select2 "Tax / Capital Gains Tax", from: "Breadcrumb"
-      select2 "Oil and Gas / Fields", from: "Specialist topic pages"
 
       save_tags_and_assert_success
 
       assert_publishing_api_patch_links(
         @content_id,
         links: {
-          topics: %w[CONTENT-ID-FIELDS CONTENT-ID-WELLS],
           organisations: [],
           meets_user_needs: [],
           mainstream_browse_pages: %w[CONTENT-ID-RTI CONTENT-ID-VAT],
@@ -248,7 +213,6 @@ class TaggingTest < JavascriptIntegrationTest
       stub_publishing_api_has_links(
         "content_id" => @content_id,
         "links" => {
-          topics: %w[CONTENT-ID-WELLS],
           mainstream_browse_pages: %w[CONTENT-ID-RTI],
           parent: %w[CONTENT-ID-RTI],
         },
@@ -258,7 +222,7 @@ class TaggingTest < JavascriptIntegrationTest
 
       switch_tab "Tagging"
 
-      select2 "Oil and Gas / Fields", from: "Specialist topic pages"
+      select2 "Tax / RTI", from: "Mainstream browse pages"
 
       stub_request(:patch, "#{PUBLISHING_API_V2_ENDPOINT}/links/#{@content_id}")
         .to_return(status: 409)

test/unit/all_urls_presenter_test.rb

@@ -18,11 +18,6 @@ class AllUrlsPresenterTest < ActiveSupport::TestCase
             "title" => "HMRC",
           },
         ],
-        "topics" => [
-          {
-            "base_path" => "/topic/business-tax/vat",
-          },
-        ],
       },
     }
   end
@@ -50,7 +45,6 @@ class AllUrlsPresenterTest < ActiveSupport::TestCase
     assert_equal "Important document", data[0]["Name"]
     assert_equal "answer", data[0]["Format"]
     assert_equal "HMRC", data[0]["Organisations"]
-    assert_equal "business-tax/vat", data[0]["Topics"]
     assert_equal "business/support,tax/vat", data[0]["Browse pages"]
   end
 

test/unit/organisation_content_presenter_test.rb

@@ -18,11 +18,6 @@ class OrganisationContentPresenterTest < ActiveSupport::TestCase
             "title" => "HMRC",
           },
         ],
-        "topics" => [
-          {
-            "base_path" => "/topic/business-tax/vat",
-          },
-        ],
       },
     }
   end
@@ -50,7 +45,6 @@ class OrganisationContentPresenterTest < ActiveSupport::TestCase
     assert_equal "Important document", data[0]["Name"]
     assert_equal "answer", data[0]["Format"]
     assert_equal "HMRC", data[0]["Organisations"]
-    assert_equal "business-tax/vat", data[0]["Topics"]
     assert_equal "business/support,tax/vat", data[0]["Browse pages"]
   end
 

test/unit/tagging/linkables_test.rb

@@ -5,19 +5,6 @@ class LinkablesTest < ActiveSupport::TestCase
     stub_linkables
   end
 
-  test "returns sorted topics" do
-    assert_equal(
-      {
-        "Oil and Gas" => [
-          ["Oil and Gas / Distillation (draft)", "CONTENT-ID-DISTILL"],
-          ["Oil and Gas / Fields", "CONTENT-ID-FIELDS"],
-          ["Oil and Gas / Wells", "CONTENT-ID-WELLS"],
-        ],
-      },
-      Tagging::Linkables.new.topics,
-    )
-  end
-
   test "returns sorted browse pages" do
     assert_equal(
       {