WIP: get this app using GraphQL

alphagov · Nov 29, 2024 · 9f0abcb · 9f0abcb
1 parent dde0c86
commit 9f0abcb
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Showing 3 changed files with 109 additions and 17 deletions.
diff --git a/Gemfile b/Gemfile
@@ -7,7 +7,7 @@ gem "rails", "7.2.2"
 gem "bootsnap", require: false
 gem "dalli"
 gem "dartsass-rails"
-gem "gds-api-adapters"
+gem "gds-api-adapters", path: "../gds-api-adapters"
 gem "govspeak"
 gem "govuk_ab_testing"
 gem "govuk_app_config"

diff --git a/Gemfile.lock b/Gemfile.lock
@@ -1,3 +1,14 @@
+PATH
+  remote: ../gds-api-adapters
+  specs:
+    gds-api-adapters (97.4.1)
+      addressable
+      link_header
+      null_logger
+      plek (>= 1.9.0)
+      rack (>= 2.2.0)
+      rest-client (~> 2.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -123,13 +134,6 @@ GEM
     execjs (2.9.1)
     faker (3.4.2)
       i18n (>= 1.8.11, < 2)
-    gds-api-adapters (97.4.0)
-      addressable
-      link_header
-      null_logger
-      plek (>= 1.9.0)
-      rack (>= 2.2.0)
-      rest-client (~> 2.0)
     globalid (1.2.1)
       activesupport (>= 6.1)
     google-protobuf (4.28.3)
@@ -658,7 +662,7 @@ DEPENDENCIES
   dalli
   dartsass-rails
   faker
-  gds-api-adapters
+  gds-api-adapters!
   govspeak
   govuk_ab_testing
   govuk_app_config

diff --git a/app/controllers/content_items_controller.rb b/app/controllers/content_items_controller.rb
@@ -136,16 +136,104 @@ def set_guide_draft_access_token
     @content_item.draft_access_token = params[:token]
   end
 
-  def load_content_item
-    content_item = Services.content_store.content_item(content_item_path)
+  def graphql_query(base_path)
+    <<-QUERY
+        {
+          edition(
+            basePath: "#{base_path}",
+            contentStore: "live",
+          ) {
+            ... on NewsArticle {
+              basePath
+              description
+              details
+              documentType
+              firstPublishedAt
+              links {
+                availableTranslations {
+                  basePath
+                  locale
+                }
+                government {
+                  details {
+                    current
+                  }
+                  title
+                }
+                organisations {
+                  basePath
+                  contentId
+                  title
+                }
+                people {
+                  basePath
+                  contentId
+                  title
+                }
+                taxons {
+                  basePath
+                  contentId
+                  documentType
+                  phase
+                  title
+                }
+                topicalEvents {
+                  basePath
+                  contentId
+                  title
+                }
+                worldLocations {
+                  basePath
+                  contentId
+                  title
+                }
+              }
+              locale
+              schemaName
+              title
+            }
+          }
+        }
+    QUERY
+  end
 
-    content_item["links"]["ordered_related_items"] = ordered_related_items(content_item["links"]) if content_item["links"]
+  ## This is a hack to stop us needing to rewrite most of this application to support the format for GraphQL responses
+  class GdsApi::Response
+    def update_response_body
+      updated_response = JSON.parse(@http_response.body).dig("data", "edition").deep_transform_keys(&:underscore)
+      @http_response = RestClient::Response.create(
+        updated_response.to_json,
+        @http_response.net_http_res,
+        @http_response.request,
+      )
+    end
+  end
 
-    @content_item = PresenterBuilder.new(
-      content_item,
-      content_item_path,
-      view_context,
-    ).presenter
+  def load_content_item
+    # # TODO: add the feature flag here
+    @content_item = if params.include?(:graphql)
+                      content_item = Services
+                        .publishing_api
+                        .graphql_query(graphql_query(content_item_path))
+
+                      content_item.update_response_body
+
+                      PresenterBuilder.new(
+                        content_item,
+                        content_item_path,
+                        view_context,
+                      ).presenter
+                    else
+                      content_item = Services.content_store.content_item(content_item_path)
+
+                      content_item["links"]["ordered_related_items"] = ordered_related_items(content_item["links"]) if content_item["links"]
+
+                      PresenterBuilder.new(
+                        content_item,
+                        content_item_path,
+                        view_context,
+                      ).presenter
+                    end
   end
 
   def ordered_related_items(links)