chore: Migrate user role to new column (#6721)

* Migration

* Double write

* Backfill script

* Simplify for self-hosted

* flip

* migration

server/models/User.ts

@@ -29,6 +29,7 @@ import {
   IsDate,
   AllowNull,
   AfterUpdate,
+  BeforeSave,
 } from "sequelize-typescript";
 import { UserPreferenceDefaults } from "@shared/constants";
 import { languages } from "@shared/i18n";
@@ -144,6 +145,10 @@ class User extends ParanoidModel<
   @Column
   isViewer: boolean;
 
+  @Default(UserRole.Member)
+  @Column(DataType.ENUM(...Object.values(UserRole)))
+  role: UserRole;
+
   @Column(DataType.BLOB)
   @Encrypted
   get jwtSecret() {
@@ -623,6 +628,20 @@ class User extends ParanoidModel<
     });
   };
 
+  /**
+   * Temporary hook to double write role while we transition to the new field.
+   */
+  @BeforeSave
+  static doubleWriteRole = async (model: User) => {
+    if (model.isAdmin) {
+      model.role = UserRole.Admin;
+    } else if (model.isViewer) {
+      model.role = UserRole.Viewer;
+    } else {
+      model.role = UserRole.Member;
+    }
+  };
+
   @BeforeCreate
   static setRandomJwtSecret = (model: User) => {
     model.jwtSecret = crypto.randomBytes(64).toString("hex");