From 017f7356134c306c9ba46b19385c3e96444c613b Mon Sep 17 00:00:00 2001
From: Nikita Dezzpil Orlov <n.dezz.orlov@gmail.com>
Date: Tue, 5 Oct 2021 14:30:18 +0300
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---
 src/app/repo.ts | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/src/app/repo.ts b/src/app/repo.ts
index a985389..de352e9 100644
--- a/src/app/repo.ts
+++ b/src/app/repo.ts
@@ -15,6 +15,8 @@ export abstract class Repo<T extends Entity<any>> {
     protected _limit = 0
     protected _offset = 0
 
+    private _transformer: (obj: any) => any
+
     /**
      * Возвращает объект соотв. сущности, например new App()
      */
@@ -25,21 +27,24 @@ export abstract class Repo<T extends Entity<any>> {
      */
     abstract Name(): string
 
-    _transformer: (object: any) => any
-
-    constructor(storage: Storage) {
+    constructor(storage: Storage, transformer?: (obj: any) => any) {
         this._storage = storage
         this._entity = this.Entity()
-        this.resetTransformer()
+        this.setTransformer(transformer)
     }
 
-    resetTransformer() {
-        this._transformer = function (object: any): any {
-            const entity = this.Entity()
-            entity.data.fromObject(object)
-            entity._id = object._id
-            return entity
+    setTransformer(transformer?: (obj: any) => any): this {
+        if (transformer) {
+            this._transformer = transformer
+        } else {
+            this._transformer = function (object: any): any {
+                const entity = this.Entity()
+                entity.data.fromObject(object)
+                entity._id = object._id
+                return entity
+            }
         }
+        return this
     }
 
     get storage(): Storage {