fix(core): update

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartdata',
-  version: '5.0.42',
+  version: '5.0.43',
   description: 'do more with data'
 }

ts/smartdata.classes.doc.ts

@@ -188,6 +188,18 @@ export class SmartDataDbDoc<T extends TImplements, TImplements, TManager extends
    */
   public creationStatus: TDocCreation = 'new';
 
+  /**
+   * updated from db in any case where doc comes from db
+   */
+  @svDb()
+  _createdAt: number = Date.now();
+
+  /**
+   * will be updated everytime the doc is saved
+   */
+  @svDb()
+  _updatedAt: number = Date.now();
+
   /**
    * unique indexes
    */
@@ -221,6 +233,9 @@ export class SmartDataDbDoc<T extends TImplements, TImplements, TManager extends
     // tslint:disable-next-line: no-this-assignment
     const self: any = this;
     let dbResult: any;
+
+    this._updatedAt = Date.now();
+
     switch (this.creationStatus) {
       case 'db':
         dbResult = await this.collection.update(self);