Merge branch 'fix/import-issue-assignees' into 'master'

Fix missing issue assignees

Closes #39170

See merge request gitlab-org/gitlab-ce!15109

changelogs/unreleased/fix-import-issue-assignees.yml

+---
+title: Fix missing Import/Export issue assignees
+merge_request:
+author:
+type: fixed

lib/gitlab/import_export/import_export.yml

@@ -19,6 +19,7 @@ project_tree:
     - milestone:
       - events:
         - :push_event_payload
+    - :issue_assignees
   - snippets:
     - :award_emoji
     - notes:

spec/lib/gitlab/import_export/all_models.yml

@@ -287,3 +287,6 @@ timelogs:
 - user
 push_event_payload:
 - event
+issue_assignees:
+- issue
+- assignee
\ No newline at end of file

spec/lib/gitlab/import_export/project.json

@@ -43,7 +43,7 @@
   "issues": [
     {
       "id": 40,
-      "title": "Voluptatem amet doloribus deleniti eos maxime repudiandae molestias.",
+      "title": "Voluptatem",
       "assignee_id": 1,
       "author_id": 22,
       "project_id": 5,
@@ -60,6 +60,12 @@
       "due_date": null,
       "moved_to_id": null,
       "test_ee_field": "test",
+      "issue_assignees": [
+        {
+          "user_id": 1,
+          "issue_id": 1
+        }
+      ],
       "milestone": {
         "id": 1,
         "title": "test milestone",

spec/lib/gitlab/import_export/project_tree_restorer_spec.rb

@@ -63,6 +63,10 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
         expect(issue.reload.updated_at.to_s).to eq('2016-06-14 15:02:47 UTC')
       end
 
+      it 'has issue assignees' do
+        expect(Issue.where(title: 'Voluptatem').first.issue_assignees).not_to be_empty
+      end
+
       it 'contains the merge access levels on a protected branch' do
         expect(ProtectedBranch.first.merge_access_levels).not_to be_empty
       end

spec/lib/gitlab/import_export/project_tree_saver_spec.rb

@@ -77,6 +77,10 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
         expect(saved_project_json['issues'].first['notes']).not_to be_empty
       end
 
+      it 'has issue assignees' do
+        expect(saved_project_json['issues'].first['issue_assignees']).not_to be_empty
+      end
+
       it 'has author on issue comments' do
         expect(saved_project_json['issues'].first['notes'].first['author']).not_to be_empty
       end

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -506,3 +506,6 @@ ProjectAutoDevops:
 - project_id
 - created_at
 - updated_at
+IssueAssignee:
+- user_id
+- issue_id
\ No newline at end of file