Move issue details to from IssueBasic to Issue entity

Cleanup IssueBasic entity to keep it basic and move extra attributes
to Issue entity which contains more details

lib/api/entities.rb

@@ -542,13 +542,9 @@ module API
     class IssueBasic < ProjectEntity
       expose :closed_at
       expose :closed_by, using: Entities::UserBasic
-      expose :labels do |issue, options|
+      expose :labels do |issue|
         # Avoids an N+1 query since labels are preloaded
-        if options[:with_labels_data]
-          ::API::Entities::LabelBasic.represent(issue.labels.sort_by(&:title))
-        else
-          issue.labels.map(&:title).sort
-        end
+        issue.labels.map(&:title).sort
       end
       expose :milestone, using: Entities::Milestone
       expose :assignees, :author, using: Entities::UserBasic
@@ -564,8 +560,6 @@ module API
       expose :due_date
       expose :confidential
       expose :discussion_locked
-      expose(:has_tasks) {|issue, _| !issue.task_list_items.empty? }
-      expose :task_status, if: -> (issue, _) { !issue.task_list_items.empty? }
       expose :web_url do |issue|
         Gitlab::UrlBuilder.build(issue)
@@ -579,6 +573,23 @@ module API
     class Issue < IssueBasic
       include ::API::Helpers::RelatedResourcesHelpers
+      expose :labels do |issue, options|
+        # Avoids an N+1 query since labels are preloaded
+        if options[:with_labels_data]
+          ::API::Entities::LabelBasic.represent(issue.labels.sort_by(&:title))
+        else
+          issue.labels.map(&:title).sort
+        end
+      end
+
+      expose(:has_tasks) do |issue, _|
+        !issue.task_list_items.empty?
+      end
+
+      expose :task_status, if: -> (issue, _) do
+        !issue.task_list_items.empty?
+      end
+
       expose :_links do
         expose :self do |issue|
           expose_url(api_v4_project_issue_path(id: issue.project_id, issue_iid: issue.iid))

lib/api/helpers/issues_helpers.rb

@@ -37,6 +37,7 @@ module API
         issues = finder.execute.with_api_entity_associations
         order_by = declared_params[:sort].present? && %w(asc desc).include?(declared_params[:sort].downcase)
         issues = issues.reorder(order_options_with_tie_breaker) if order_by
+
         issues
         # rubocop: enable CodeReuse/ActiveRecord
       end

lib/api/issues.rb

@@ -82,7 +82,7 @@ module API
     resource :issues do
       desc "Get currently authenticated user's issues" do
-        success Entities::IssueBasic
+        success Entities::Issue
       end
       params do
         use :issues_params
@@ -94,7 +94,7 @@ module API
         issues = paginate(find_issues)
         options = {
-          with: Entities::IssueBasic,
+          with: Entities::Issue,
           with_labels_data: declared_params[:with_labels_data],
           current_user: current_user,
           issuable_metadata: issuable_meta_data(issues, 'Issue')
@@ -109,7 +109,7 @@ module API
     end
     resource :groups, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
       desc 'Get a list of group issues' do
-        success Entities::IssueBasic
+        success Entities::Issue
       end
       params do
         use :issues_params
@@ -120,7 +120,7 @@ module API
         issues = paginate(find_issues(group_id: group.id, include_subgroups: true))
         options = {
-          with: Entities::IssueBasic,
+          with: Entities::Issue,
           with_labels_data: declared_params[:with_labels_data],
           current_user: current_user,
           issuable_metadata: issuable_meta_data(issues, 'Issue')
@@ -149,7 +149,7 @@ module API
       include TimeTrackingEndpoints
       desc 'Get a list of project issues' do
-        success Entities::IssueBasic
+        success Entities::Issue
       end
       params do
         use :issues_params
@@ -160,7 +160,7 @@ module API
         issues = paginate(find_issues(project_id: project.id))
         options = {
-          with: Entities::IssueBasic,
+          with: Entities::Issue,
           with_labels_data: declared_params[:with_labels_data],
           current_user: current_user,
           project: user_project,

spec/fixtures/api/schemas/public_api/v4/issue.json

@@ -14,7 +14,7 @@
     "labels": {
       "type": "array",
       "items": {
-        "$ref": "../../entities/label.json"
+        "type": "string"
       }
     },
     "milestone": {
@@ -79,8 +79,6 @@
     "due_date": { "type": ["date", "null"] },
     "confidential": { "type": "boolean" },
     "web_url": { "type": "uri" },
-    "has_tasks": {"type":  "boolean"},
-    "task_status": {"type":  "string"},
     "time_stats": {
       "time_estimate": { "type": "integer" },
       "total_time_spent": { "type": "integer" },
@@ -93,6 +91,6 @@
     "state", "created_at", "updated_at", "labels",
     "milestone", "assignees", "author", "user_notes_count",
     "upvotes", "downvotes", "due_date", "confidential",
-    "has_tasks", "web_url"
+    "web_url"
   ]
 }

spec/requests/api/issues/get_project_issues_spec.rb

@@ -160,12 +160,12 @@ describe API::Issues do
     it 'avoids N+1 queries' do
       get api("/projects/#{project.id}/issues", user)
+      create_list(:issue, 3, project: project)
+
       control_count = ActiveRecord::QueryRecorder.new(skip_cached: false) do
         get api("/projects/#{project.id}/issues", user)
       end.count
-      create_list(:issue, 3, project: project)
-
       expect do
         get api("/projects/#{project.id}/issues", user)
       end.not_to exceed_all_query_limit(control_count)