Part 1 of the relation fix

src/models/entities/Runner.ts

@@ -54,7 +54,7 @@ export class Runner extends Participant {
    * Returns the total distance ran by this runner.
   */
   @IsInt()
-  public async distance(): Promise<number> {
-    return await (await this.getValidScans()).reduce((sum, current) => sum + current.distance, 0);
+  public get distance(): number {
+    return 0;
   }
 }

src/models/responses/ResponseRunner.ts

@@ -72,7 +72,7 @@ export class ResponseRunner {
         this.lastname = runner.lastname;
         this.phone = runner.phone;
         this.email = runner.email;
-        this.distance = runner.distance;
+        this.distance = runner.scans.reduce((sum, current) => sum + current.distance, 0);
         this.group = runner.group;
     }
 }