Add summary to timelogs

We currently reference the note_id when a timelog is added via a
quick action, but there is a desire to be able to add a summary
"note" to the timelog itself.

This introduces the database field for us to build the backend.

Changelog: added

app/models/timelog.rb

@@ -6,6 +6,7 @@ class Timelog < ApplicationRecord
   before_save :set_project
 
   validates :time_spent, :user, presence: true
+  validates :summary, length: { maximum: 255 }
   validate :issuable_id_is_present, unless: :importing?
 
   belongs_to :issue, touch: true

db/migrate/20210621084632_add_summary_to_timelogs.rb

+# frozen_string_literal: true
+
+class AddSummaryToTimelogs < ActiveRecord::Migration[6.1]
+  # rubocop:disable Migration/AddLimitToTextColumns
+  # limit is added in 20210621090030_add_text_limit_to_timelogs_summary
+  def change
+    add_column :timelogs, :summary, :text
+  end
+  # rubocop:enable Migration/AddLimitToTextColumns
+end

db/migrate/20210621090030_add_text_limit_to_timelogs_summary.rb

+# frozen_string_literal: true
+
+class AddTextLimitToTimelogsSummary < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  def up
+    add_text_limit :timelogs, :summary, 255
+  end
+
+  def down
+    remove_text_limit :timelogs, :summary
+  end
+end

db/schema_migrations/20210621084632

+fb5b54e29400836afb122cd38a2ae34abc1ff6dd800eadaba023220c51da6868
\ No newline at end of file

db/schema_migrations/20210621090030

+5077a5c9cfe9b79506bb65d9dd02b745545a8586c198041bf7cbb945827c07cf
\ No newline at end of file

db/structure.sql

@@ -18394,7 +18394,9 @@ CREATE TABLE timelogs (
     merge_request_id integer,
     spent_at timestamp without time zone,
     note_id integer,
-    project_id integer
+    project_id integer,
+    summary text,
+    CONSTRAINT check_271d321699 CHECK ((char_length(summary) <= 255))
 );
 
 CREATE SEQUENCE timelogs_id_seq

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -645,6 +645,7 @@ Timelog:
 - spent_at
 - created_at
 - updated_at
+- summary
 ProjectAutoDevops:
 - id
 - enabled

spec/models/timelog_spec.rb

@@ -17,6 +17,8 @@ RSpec.describe Timelog do
   it { is_expected.to validate_presence_of(:time_spent) }
   it { is_expected.to validate_presence_of(:user) }
 
+  it { is_expected.to validate_length_of(:summary).is_at_most(255) }
+
   it { expect(subject.project_id).not_to be_nil }
 
   describe 'Issuable validation' do