Merge branch 'fix/import-users' into 'master'

Fix import no longer mapping users as admin

Closes #25346

See merge request !8625

changelogs/unreleased/fix-import-users.yml

+---
+title: Fix import/export wrong user mapping
+merge_request: 
+author: 

lib/gitlab/import_export/members_mapper.rb

 module Gitlab
   module ImportExport
     class MembersMapper
-      attr_reader :missing_author_ids
-
       def initialize(exported_members:, user:, project:)
-        @exported_members = exported_members
+        @exported_members = user.admin? ? exported_members : []
         @user = user
         @project = project
-        @missing_author_ids = []
 
         # This needs to run first, as second call would be from #map
         # which means project members already exist.
@@ -39,7 +36,6 @@ module Gitlab
 
       def missing_keys_tracking_hash
         Hash.new do |_, key|
-          @missing_author_ids << key
           default_user_id
         end
       end
@@ -64,7 +60,7 @@ module Gitlab
       end
 
       def find_project_user_query(member)
-        user_arel[:username].eq(member['user']['username']).or(user_arel[:email].eq(member['user']['email']))
+        user_arel[:email].eq(member['user']['email']).or(user_arel[:username].eq(member['user']['username']))
       end
 
       def user_arel

lib/gitlab/import_export/relation_factory.rb

@@ -14,7 +14,7 @@ module Gitlab
                     priorities: :label_priorities,
                     label: :project_label }.freeze
 
-      USER_REFERENCES = %w[author_id assignee_id updated_by_id user_id created_by_id merge_user_id].freeze
+      USER_REFERENCES = %w[author_id assignee_id updated_by_id user_id created_by_id merge_user_id resolved_by_id].freeze
 
       PROJECT_REFERENCES = %w[project_id source_project_id gl_project_id target_project_id].freeze
 
@@ -80,17 +80,13 @@ module Gitlab
       # is left.
       def set_note_author
         old_author_id = @relation_hash['author_id']
-
-        # Users with admin access can map users
-        @relation_hash['author_id'] = admin_user? ? @members_mapper.map[old_author_id] : @members_mapper.default_user_id
-
         author = @relation_hash.delete('author')
 
-        update_note_for_missing_author(author['name']) if missing_author?(old_author_id)
+        update_note_for_missing_author(author['name']) unless has_author?(old_author_id)
       end
 
-      def missing_author?(old_author_id)
-        !admin_user? || @members_mapper.missing_author_ids.include?(old_author_id)
+      def has_author?(old_author_id)
+        admin_user? && @members_mapper.map.keys.include?(old_author_id)
       end
 
       def missing_author_note(updated_at, author_name)

spec/lib/gitlab/import_export/members_mapper_spec.rb

@@ -2,7 +2,7 @@ require 'spec_helper'
 
 describe Gitlab::ImportExport::MembersMapper, services: true do
   describe 'map members' do
-    let(:user) { create(:user, authorized_projects_populated: true) }
+    let(:user) { create(:admin, authorized_projects_populated: true) }
     let(:project) { create(:project, :public, name: 'searchable_project') }
     let(:user2) { create(:user, authorized_projects_populated: true) }
     let(:exported_user_id) { 99 }
@@ -24,7 +24,7 @@ describe Gitlab::ImportExport::MembersMapper, services: true do
            {
              "id" => exported_user_id,
              "email" => user2.email,
-             "username" => user2.username
+             "username" => 'test'
            }
        },
        {
@@ -48,6 +48,10 @@ describe Gitlab::ImportExport::MembersMapper, services: true do
         exported_members: exported_members, user: user, project: project)
     end
 
+    it 'includes the exported user ID in the map' do
+      expect(members_mapper.map.keys).to include(exported_user_id)
+    end
+
     it 'maps a project member' do
       expect(members_mapper.map[exported_user_id]).to eq(user2.id)
     end
@@ -56,12 +60,6 @@ describe Gitlab::ImportExport::MembersMapper, services: true do
       expect(members_mapper.map[-1]).to eq(user.id)
     end
 
-    it 'updates missing author IDs on missing project member' do
-      members_mapper.map[-1]
-
-      expect(members_mapper.missing_author_ids.first).to eq(-1)
-    end
-
     it 'has invited members with no user' do
       members_mapper.map
 
@@ -74,5 +72,25 @@ describe Gitlab::ImportExport::MembersMapper, services: true do
       expect(user.authorized_project?(project)).to be true
       expect(user2.authorized_project?(project)).to be true
     end
+
+    context 'user is not an admin' do
+      let(:user) { create(:user, authorized_projects_populated: true) }
+
+      it 'does not map a project member' do
+        expect(members_mapper.map[exported_user_id]).to eq(user.id)
+      end
+
+      it 'defaults to importer project member if it does not exist' do
+        expect(members_mapper.map[-1]).to eq(user.id)
+      end
+    end
+
+    context 'chooses the one with an email first' do
+      let(:user3) { create(:user, username: 'test') }
+
+      it 'maps the project member that has a matching email first' do
+        expect(members_mapper.map[exported_user_id]).to eq(user2.id)
+      end
+    end
   end
 end

spec/lib/gitlab/import_export/relation_factory_spec.rb

@@ -3,7 +3,7 @@ require 'spec_helper'
 describe Gitlab::ImportExport::RelationFactory, lib: true do
   let(:project) { create(:empty_project) }
   let(:members_mapper) { double('members_mapper').as_null_object }
-  let(:user) { create(:user) }
+  let(:user) { create(:admin) }
   let(:created_object) do
     described_class.create(relation_sym: relation_sym,
                            relation_hash: relation_hash,
@@ -122,4 +122,60 @@ describe Gitlab::ImportExport::RelationFactory, lib: true do
       expect(created_object.values).not_to include(99)
     end
   end
+
+  context 'Notes user references' do
+    let(:relation_sym) { :notes }
+    let(:new_user) { create(:user) }
+    let(:exported_member) do
+      {
+        "id" => 111,
+        "access_level" => 30,
+        "source_id" => 1,
+        "source_type" => "Project",
+        "user_id" => 3,
+        "notification_level" => 3,
+        "created_at" => "2016-11-18T09:29:42.634Z",
+        "updated_at" => "2016-11-18T09:29:42.634Z",
+        "user" => {
+          "id" => 999,
+          "email" => new_user.email,
+          "username" => new_user.username
+        }
+      }
+    end
+
+    let(:relation_hash) do
+      {
+        "id" => 4947,
+        "note" => "merged",
+        "noteable_type" => "MergeRequest",
+        "author_id" => 999,
+        "created_at" => "2016-11-18T09:29:42.634Z",
+        "updated_at" => "2016-11-18T09:29:42.634Z",
+        "project_id" => 1,
+        "attachment" => {
+          "url" => nil
+        },
+        "noteable_id" => 377,
+        "system" => true,
+        "author" => {
+          "name" => "Administrator"
+        },
+        "events" => [
+
+        ]
+      }
+    end
+
+    let(:members_mapper) do
+      Gitlab::ImportExport::MembersMapper.new(
+        exported_members: [exported_member],
+        user: user,
+        project: project)
+    end
+
+    it 'maps the right author to the imported note' do
+      expect(created_object.author).to eq(new_user)
+    end
+  end
 end