chore: migrate maintainerMV to use repositories (#3812)

Author: mbani01

backend/src/database/migrations/U1770038298__migrateMaintainerMVtoRepositories.sql

@@ -0,0 +1,22 @@
+-- Migrate mv_maintainer_roles from githubRepos to public.repositories
+-- This must run before dropping the githubRepos table
+
+DROP MATERIALIZED VIEW IF EXISTS mv_maintainer_roles;
+
+CREATE MATERIALIZED VIEW mv_maintainer_roles AS
+SELECT
+    mai.id,
+    mei."memberId",
+    r."segmentId",
+    mai."createdAt" AS "dateStart",
+    NULL as "dateEnd",
+    r.url,
+    CASE WHEN i.platform = 'github-nango' THEN 'github' ELSE i.platform END AS "repoType",
+    mai.role
+FROM "maintainersInternal" mai
+JOIN "memberIdentities" mei ON mai."identityId" = mei.id
+JOIN public.repositories r ON mai."repoId" = r.id
+JOIN integrations i ON r."sourceIntegrationId" = i.id
+WHERE r."deletedAt" IS NULL;
+
+CREATE UNIQUE INDEX IF NOT EXISTS mv_maintainer_roles_id ON mv_maintainer_roles (id);

backend/src/database/migrations/V1770038298__migrateMaintainerMVtoRepositories.sql

@@ -2,6 +2,9 @@ import { QueryExecutor } from '../queryExecutor'
 
 export enum MaintainerRepoType {
   GITHUB = 'github',
+  GITLAB = 'gitlab',
+  GIT = 'git',
+  GERRIT = 'gerrit',
 }
 
 export interface Maintainer {