Refactor tutorial and user models to replace fileName with id, update related components and services for consistency

jambotron-ui/src/app/modules/user-module/user-api.service.ts

@@ -52,28 +52,28 @@ export class UserApiService {
     return this.http.get<Tutorial[]>(`${this.baseUrl}/tutorials`);
   }
 
-  getTutorial(fileName: string | null | undefined): Observable<Tutorial> {
-    return this.http.get<Tutorial>(`${this.baseUrl}/tutorial-get/${fileName}`);
+  getTutorial(id: string | null | undefined): Observable<Tutorial> {
+    return this.http.get<Tutorial>(`${this.baseUrl}/tutorial-get/${id}`);
   }
 
   create(data: any): Observable<any> {
     return this.http.post(`${this.baseUrl}/tutorial-add`, data);
   }
 
-  update(fileName: any,data: any): Observable<any> {
-    return this.http.put(`${this.baseUrl}/tutorial-update/${fileName}`, data);
+  update(id: any,data: any): Observable<any> {
+    return this.http.put(`${this.baseUrl}/tutorial-update/${id}`, data);
   }
 
   deleteTutorials(tutorials: Tutorial[]): Observable<Tutorial[]> {
     return forkJoin(
       tutorials.map((tutorial) =>
-        this.http.delete<Tutorial>(`${this.baseUrl}/tutorials/${tutorial.fileName}`)
+        this.http.delete<Tutorial>(`${this.baseUrl}/tutorials/${tutorial.id}`)
       )
     );
   }
 
-  deleteTutorial(fileName: number): Observable<Tutorial> {
-      return this.http.delete<Tutorial>(`${this.baseUrl}/tutorials/${fileName}`);
+  deleteTutorial(id: number): Observable<Tutorial> {
+      return this.http.delete<Tutorial>(`${this.baseUrl}/tutorials/${id}`);
   }
 
 }