Create IncidentManagement::OncallSchedule model

The storage for Incident Management on-call schedules

app/models/concerns/enums/internal_id.rb

@@ -15,7 +15,8 @@ module Enums
         operations_user_lists: 7,
         alert_management_alerts: 8,
         sprints: 9, # iterations
-        design_management_designs: 10
+        design_management_designs: 10,
+        incident_management_oncall_schedules: 11
       }
     end
   end

app/models/incident_management/oncall_schedule.rb

+# frozen_string_literal: true
+
+module IncidentManagement
+  class OncallSchedule < ApplicationRecord
+    self.table_name = 'incident_management_oncall_schedules'
+
+    include IidRoutes
+    include AtomicInternalId
+
+    NAME_LENGTH = 200
+    DESCRIPTION_LENGTH = 1000
+    TIMEZONE_LENGTH = 100
+
+    belongs_to :project, inverse_of: :incident_management_oncall_schedules
+
+    has_internal_id :iid, scope: :project
+
+    validates :name, presence: true, length: { maximum: NAME_LENGTH }
+    validates :description, length: { maximum: DESCRIPTION_LENGTH }
+    validates :timezone, presence: true, length: { maximum: TIMEZONE_LENGTH }
+  end
+end

app/models/project.rb

@@ -273,6 +273,7 @@ class Project < ApplicationRecord
 
   has_many :alert_management_alerts, class_name: 'AlertManagement::Alert', inverse_of: :project
   has_many :alert_management_http_integrations, class_name: 'AlertManagement::HttpIntegration', inverse_of: :project
+  has_many :incident_management_oncall_schedules, class_name: 'IncidentManagement::OncallSchedule', inverse_of: :project
 
   # Container repositories need to remove data from the container registry,
   # which is not managed by the DB. Hence we're still using dependent: :destroy

spec/factories/incident_management/oncall_schedules.rb

+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :incident_management_oncall_schedule, class: 'IncidentManagement::OncallSchedule' do
+    project
+    name { 'Default On-call Schedule' }
+    description { 'On-call description' }
+    timezone { 'Europe/Berlin' }
+  end
+end

spec/lib/gitlab/import_export/all_models.yml

@@ -554,6 +554,7 @@ project:
 - terraform_states
 - alert_management_http_integrations
 - exported_protected_branches
+- incident_management_oncall_schedules
 award_emoji:
 - awardable
 - user

spec/models/incident_management/oncall_schedule_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe IncidentManagement::OncallSchedule do
+  let_it_be(:project) { create(:project) }
+
+  describe '.associations' do
+    it { is_expected.to belong_to(:project) }
+  end
+
+  describe '.validations' do
+    subject { build(:incident_management_oncall_schedule, project: project) }
+
+    it { is_expected.to validate_presence_of(:name) }
+    it { is_expected.to validate_length_of(:name).is_at_most(200) }
+    it { is_expected.to validate_length_of(:description).is_at_most(1000) }
+    it { is_expected.to validate_presence_of(:timezone) }
+    it { is_expected.to validate_length_of(:timezone).is_at_most(100) }
+  end
+end