added

Signed-off-by: Kenneth Obsequio <k80308392@gmail.com>

models/notifications/user_notification.mdl.js

@@ -48,6 +48,33 @@ const UserNotification = sequelize.define('UserNotification', {
         defaultValue: false,
     },
 
+    // Named color key (utils/tierColors.js on the frontend) for the sticky banner.
+    color: {
+        type:      DataTypes.STRING(20),
+        allowNull: false,
+        defaultValue: 'indigo',
+    },
+
+    // Denormalized copy of the source NotificationBroadcast's visibility
+    // window (see notificationVisibility.util.js) — null means unbounded.
+    start_date: {
+        type:      DataTypes.DATE,
+        allowNull: true,
+    },
+    end_date: {
+        type:      DataTypes.DATE,
+        allowNull: true,
+    },
+
+    // Links back to the source broadcast so editing it after send can
+    // propagate content changes into already-created rows (see
+    // notificationBroadcasts.controller.js#updateBroadcast). Null for
+    // notification types with no broadcast source.
+    broadcast_id: {
+        type:      DataTypes.BIGINT,
+        allowNull: true,
+    },
+
     data: {
         type:         DataTypes.JSONB,
         allowNull:    true,