diff --git a/lib/DatabaseModel.ts b/lib/DatabaseModel.ts
index 06ba7ab..344fb9b 100644
--- a/lib/DatabaseModel.ts
+++ b/lib/DatabaseModel.ts
@@ -6,7 +6,15 @@
  */
 
 export abstract class DatabaseModel {
-  protected id?: number;
+  protected data: Record<string, string|number|boolean> = {};
+
+  public get id (): number {
+    return this.data.id;
+  }
+
+  public set id (val: number) {
+    this.data.id = val;
+  }
 
   public static async get<T extends DatabaseModel> (
     id: number,
@@ -18,14 +26,8 @@ export abstract class DatabaseModel {
     return dbm;
   }
 
-  public get object (): Record<string, number | string | undefined> {
-    const obj = { id: this.id };
-    return obj;
-  }
-
-  public set object (obj: Record<string, number | string | undefined>) {
-    this.id = obj.id as number | undefined;
-  }
+  public abstract get(key: string): string|number|boolean;
+  public abstract set(key: string, value: string|number|boolean);
 
   public abstract read(): Promise<void>;
   public abstract write(): Promise<void>;