1 files changed, 57 insertions, 0 deletions
diff --git a/db/migrate/20230228142350_add_notifications_work_item_widget.rb b/db/migrate/20230228142350_add_notifications_work_item_widget.rb
new file mode 100644
index 00000000000..1bc89a6875c
--- /dev/null
+++ b/db/migrate/20230228142350_add_notifications_work_item_widget.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+class AddNotificationsWorkItemWidget < Gitlab::Database::Migration[2.1]
+  class WorkItemType < MigrationRecord
+    self.table_name = 'work_item_types'
+  end
+
+  class WidgetDefinition < MigrationRecord
+    self.table_name = 'work_item_widget_definitions'
+  end
+
+  restrict_gitlab_migration gitlab_schema: :gitlab_main
+  disable_ddl_transaction!
+
+  WIDGET_NAME = 'Notifications'
+  WIDGET_ENUM_VALUE = 14
+  WORK_ITEM_TYPES = [
+    'Issue',
+    'Incident',
+    'Test Case',
+    'Requirement',
+    'Task',
+    'Objective',
+    'Key Result'
+  ].freeze
+
+  def up
+    widgets = []
+
+    WORK_ITEM_TYPES.each do |type_name|
+      type = WorkItemType.find_by_name_and_namespace_id(type_name, nil)
+
+      unless type
+        Gitlab::AppLogger.warn("type #{type_name} is missing, not adding widget")
+
+        next
+      end
+
+      widgets << {
+        work_item_type_id: type.id,
+        name: WIDGET_NAME,
+        widget_type: WIDGET_ENUM_VALUE
+      }
+    end
+
+    return if widgets.empty?
+
+    WidgetDefinition.upsert_all(
+      widgets,
+      unique_by: :index_work_item_widget_definitions_on_default_witype_and_name
+    )
+  end
+
+  def down
+    WidgetDefinition.where(name: WIDGET_NAME).delete_all
+  end
+end