property for reading entire data stack

lib/DatabaseModel.ts

@@ -16,6 +16,10 @@ export abstract class DatabaseModel {
     this.data.id = val;
   }
 
+  public get data (): Record<string, string|number, boolean> {
+    return this.data;
+  }
+
   public constructor (id: number) {
     this.id = id;
   }