fixed leaving comments on notes about missing authors

lib/gitlab/import_export/import_service.rb

@@ -16,7 +16,12 @@ module Gitlab
       def execute
         Gitlab::ImportExport::Importer.import(archive_file: @archive_file,
                                               shared: @shared)
-        project_tree.project if [restore_project_tree, restore_repo, restore_wiki_repo].all?
+        if [restore_project_tree, restore_repo, restore_wiki_repo].all?
+          project_tree.project
+        else
+          project_tree.project.destroy if project_tree.project
+          nil
+        end
       end
 
       private

lib/gitlab/import_export/members_mapper.rb

@@ -4,10 +4,10 @@ module Gitlab
 
       attr_reader :map, :note_member_list
 
-      def initialize(exported_members:, user:, project_id:)
+      def initialize(exported_members:, user:, project:)
         @exported_members = exported_members
         @user = user
-        @project_id = project_id
+        @project = project
         @note_member_list = []
 
         @project_member_map = Hash.new do |_, key|
@@ -36,20 +36,21 @@ module Gitlab
       end
 
       def member_hash(member)
-        member.except('id').merge(source_id: @project_id)
+        member.except('id').merge(source_id: @project.id)
       end
 
-      #TODO: If default, then we need to leave a comment 'Comment by <original username>' on comments
       def default_project_member
         @default_project_member ||=
           begin
+            return @project.project_members.first.user.id unless @project.project_members.empty?
             default_member = ProjectMember.new(default_project_member_hash)
-            default_member.user.id if default_member.save
+            default_member.save!
+            default_member.user.id
           end
       end
 
       def default_project_member_hash
-        { user: @user, access_level: ProjectMember::MASTER, source_id: @project_id }
+        { user: @user, access_level: ProjectMember::MASTER, source_id: @project.id }
       end
 
       def find_project_user_query(member)

lib/gitlab/import_export/project_tree_restorer.rb

@@ -29,7 +29,7 @@ module Gitlab
       def members_mapper
         @members_mapper ||= Gitlab::ImportExport::MembersMapper.new(exported_members: @project_members,
                                                                     user: @user,
-                                                                    project_id: project.id)
+                                                                    project: project)
       end
 
       def create_relations(relation_list = default_relation_list, tree_hash = @tree_hash)

lib/gitlab/import_export/relation_factory.rb

@@ -30,16 +30,17 @@ module Gitlab
       def update_missing_author(relation_hash, members_map)
         old_author_id = relation_hash['author_id']
         relation_hash['author_id'] = members_map.map[old_author_id]
+        author = relation_hash.delete('author')
+
         return unless members_map.note_member_list.include?(old_author_id)
 
         relation_hash['note'] = ('*Blank note*') if relation_hash['note'].blank?
-        relation_hash['note'] += (missing_author_note(relation_hash['updated_at'],
-                                                       relation_hash['author']['name']))
-        relation_hash.delete('author')
+        relation_hash['note'] += (missing_author_note(relation_hash['updated_at'], author['name']))
       end
 
       def missing_author_note(updated_at, author_name)
-        "\n\n *By #{author_name} on #{updated_at} (imported from GitLab project)*"
+        timestamp = updated_at.split('.').first
+        "\n\n *By #{author_name} on #{timestamp} (imported from GitLab project)*"
       end
 
       def update_project_references(relation_hash, klass)

spec/lib/gitlab/import_export/members_mapper_spec.rb

@@ -32,7 +32,7 @@ describe Gitlab::ImportExport::MembersMapper, services: true do
 
     let(:members_mapper) do
       described_class.new(
-        exported_members: exported_members, user: user, project_id: project.id)
+        exported_members: exported_members, user: user, project: project)
     end
 
     it 'maps a project member' do