Merge branch '849-issue---make-eventemitter-part-of-the-base-repository' into 851-issue---make-logger-part-of-the-base-repository

api/src/utils/generics/base-repository.ts

@@ -81,7 +81,8 @@ export abstract class BaseRepository<
 
   private readonly leanOpts = { virtuals: true, defaults: true, getters: true };
 
-  eventEmitter: EventEmitter2;
+  @Inject(EventEmitter2)
+  readonly eventEmitter: EventEmitter2;
 
   @Inject(LoggerService)
   readonly logger: LoggerService;
@@ -92,7 +93,6 @@ export abstract class BaseRepository<
     protected readonly populate: P[] = [],
     protected readonly clsPopulate?: new () => TFull,
   ) {
-    this.eventEmitter = new EventEmitter2();
     this.registerLifeCycleHooks();
   }
 
@@ -175,15 +175,21 @@ export abstract class BaseRepository<
       const query = this as Query<DeleteResult, D, unknown, T, 'deleteMany'>;
       const criteria = query.getQuery();
       await repository.preDelete(query, criteria);
+      await repository.eventEmitter.emitAsync(
+        repository.getEventName(EHook.preDelete),
+        query,
+        criteria,
+      );
     });
 
     hooks.deleteMany.post.execute(async function (result: DeleteResult) {
-      await repository.eventEmitter.emitAsync(
-        repository.getEventName(EHook.postDelete),
-        result,
-      );
       const query = this as Query<DeleteResult, D, unknown, T, 'deleteMany'>;
       await repository.postDelete(query, result);
+      await repository.eventEmitter.emitAsync(
+        repository.getEventName(EHook.postDelete),
+        query,
+        result,
+      );
     });
 
     hooks.findOneAndUpdate.pre.execute(async function () {

api/types/event-emitter.d.ts

@@ -330,11 +330,18 @@ declare module '@nestjs/event-emitter' {
         : `hook:${G}:${TNormalizedOrCustomized<G>}`
       : never;
 
+  type TEventName = Exclude<
+    customEvent<EventNamespaces | ConstrainedString>,
+    `${string}:*`
+  >;
+
   interface ListenerFn<G extends EventNamespaces | ConstrainedString> {
     (value: EventValueOf<G>, ...values: any[]): void;
   }
 
   class EventEmitter2 {
+    constructor(options?: ConstructorOptions);
+
     emit<G extends EventNamespaces | ConstrainedString, H extends G>(
       customEvent: customEvent<G>,
       value: EventValueOf<H>,
@@ -396,6 +403,8 @@ declare module '@nestjs/event-emitter' {
       customEvent: customEvent<G>,
       listener: ListenerFn<H>,
     ): this;
+
+    readonly event: TEventName;
   }
 
   declare type OnEventMethodDecorator<