fix(core): update

ts/smartdata.classes.doc.ts

@@ -255,6 +255,16 @@ export class SmartDataDbDoc<T extends TImplements, TImplements, TManager extends
     }
   }
 
+  /**
+   * updates an object from db
+   */
+  public async updateFromDb() {
+    const mongoDbNativeDoc = await this.collection.findOne(this.createIdentifiableObject());
+    for (const key of Object.keys(mongoDbNativeDoc)) {
+      this[key] = mongoDbNativeDoc[key];
+    }
+  }
+
   /**
    * creates a saveable object so the instance can be persisted as json in the database
    */