diff --git a/lib/ControlModel.ts b/lib/ControlModel.ts
index 72caa2c..d23c97e 100644
--- a/lib/ControlModel.ts
+++ b/lib/ControlModel.ts
@@ -5,19 +5,36 @@
  * Created by Timo Hocker <timo@scode.ovh>, May 2020
  */
 
-export abstract class ControlModel {
+import { DataApply } from './DataApply';
+
+export abstract class ControlModel implements DataApply {
   protected data: Record<string, string|number|boolean> = {};
 
-  public get object (): Record<string, string|number|boolean> {
-    return this.data;
-  }
-
-  public set object (obj: Record<string, string|number|boolean>) {
+  public constructor (obj: Record<string, string|number|boolean>) {
     this.data = obj;
   }
 
-  public constructor (obj: Record<string, string|number|boolean>) {
-    this.object = obj;
+  public get_data (): Record<string, string|number|boolean> {
+    return this.data;
+  }
+
+  public apply_object (obj: Record<string, unknown>): void {
+    for (const key of Object.keys (obj)) {
+      if ([
+        'string',
+        'number',
+        'boolean'
+      ].indexOf (typeof obj[key]) > -1)
+        this.data[key] = obj[key] as string|number|boolean;
+    }
+  }
+
+  public apply (da: DataApply): void {
+    this.apply_object (da.get_data ());
+  }
+
+  public apply_to (da: DataApply): void {
+    da.apply (this);
   }
 
   public get (key: string): string|number|boolean {
diff --git a/lib/DataApply.ts b/lib/DataApply.ts
new file mode 100644
index 0000000..8cd7568
--- /dev/null
+++ b/lib/DataApply.ts
@@ -0,0 +1,6 @@
+export interface DataApply {
+  apply(da: DataApply): void;
+  apply_object(obj: Record<string, unknown>): void;
+  apply_to(da: DataApply): void;
+  get_data(): Record<string, unknown>;
+}
diff --git a/lib/DatabaseModel.ts b/lib/DatabaseModel.ts
index b84ba56..d8d6780 100644
--- a/lib/DatabaseModel.ts
+++ b/lib/DatabaseModel.ts
@@ -5,7 +5,9 @@
  * Created by Timo Hocker <timo@scode.ovh>, May 2020
  */
 
-export abstract class DatabaseModel {
+import { DataApply } from './DataApply';
+
+export abstract class DatabaseModel implements DataApply {
   protected data: Record<string, string|number|boolean> = {};
 
   public get id (): number {
@@ -16,10 +18,29 @@ export abstract class DatabaseModel {
     this.data.id = val;
   }
 
-  public get object (): Record<string, string|number|boolean> {
+  public get_data (): Record<string, string|number|boolean> {
     return this.data;
   }
 
+  public apply_object (obj: Record<string, unknown>): void {
+    for (const key of Object.keys (obj)) {
+      if ([
+        'string',
+        'number',
+        'boolean'
+      ].indexOf (typeof obj[key]) > -1)
+        this.data[key] = obj[key] as string|number|boolean;
+    }
+  }
+
+  public apply (da: DataApply): void {
+    this.apply_object (da.get_data ());
+  }
+
+  public apply_to (da: DataApply): void {
+    da.apply (this);
+  }
+
   public constructor (id: number) {
     this.id = id;
   }