Migrate Neo4j OnIndex decorator

Author: CarsonF

src/core/database/indexer/create-indexes.decorator.ts

@@ -1,7 +1,6 @@
-import { SetMetadata } from '@nestjs/common';
+import { createMetadataDecorator } from '@seedcompany/nest';
 import { type ILogger } from '../../logger';
 import { type DatabaseService, type ServerInfo } from '../database.service';
-import { DB_INDEX_KEY } from './indexer.constants';
 
 export type IndexMode = 'write' | 'schema';
 
@@ -11,8 +10,10 @@ export type IndexMode = 'write' | 'schema';
  * It should be used on a provider method.
  * It's passed a db Connection for convenience.
  */
-export const OnIndex = (mode: IndexMode = 'write') =>
-  SetMetadata(DB_INDEX_KEY, mode);
+export const OnIndex = createMetadataDecorator({
+  setter: (mode: IndexMode = 'write') => mode,
+  types: ['method'],
+});
 
 export interface OnIndexParams {
   db: DatabaseService;

src/core/database/indexer/indexer.constants.ts

@@ -9,8 +9,7 @@ import { many } from '~/common';
 import { ConfigService } from '../../config/config.service';
 import { ILogger, Logger } from '../../logger';
 import { DatabaseService, type ServerInfo } from '../database.service';
-import { type IndexMode } from './create-indexes.decorator';
-import { DB_INDEX_KEY } from './indexer.constants';
+import { OnIndex } from './create-indexes.decorator';
 
 @Module({
   imports: [DiscoveryModule],
@@ -28,8 +27,9 @@ export class IndexerModule implements OnModuleInit {
       return;
     }
 
-    const discovered =
-      await this.discover.providerMethodsWithMetaAtKey<IndexMode>(DB_INDEX_KEY);
+    const discovered = await this.discover.providerMethodsWithMetaAtKey<
+      (typeof OnIndex)['$value']
+    >(OnIndex.KEY);
     this.logger.debug('Discovered indexers', { count: discovered.length });
     const groupedByMode = groupToMapBy(discovered, (d) => d.meta);