Fix content-choice answer sending

src/app/components/participant/content-choice-participant/content-choice-participant.component.ts

@@ -50,6 +50,8 @@ export class ContentChoiceParticipantComponent implements OnInit {
     }
   }
 
+  // TODO: check answers
+
   submitAnswer(): void {
     let selectedAnswers: number[] = [];
     if (this.content.multiple) {
@@ -67,6 +69,8 @@ export class ContentChoiceParticipantComponent implements OnInit {
       }
     }
 
+    // TODO: i18n
+
     if (!this.content.multiple && selectedAnswers.length !== 1) {
       this.notificationService.show('In single choice mode is only 1 selection allowed');
       this.isAnswerSent = false;
@@ -79,11 +83,13 @@ export class ContentChoiceParticipantComponent implements OnInit {
     }
     this.isAnswerSent = true;
     this.answerService.addAnswerChoice({
-      id: '',
-      revision: '',
+      id: null,
+      revision: null,
       contentId: this.content.id,
       round: 1,
-      selectedChoiceIndexes: []
+      selectedChoiceIndexes: [],
+      creationTimestamp: null,
+      format: ContentType.CHOICE
     } as AnswerChoice).subscribe();
     // TODO: Set isAnswerSent
   }

src/app/models/answer-choice.ts

+import { ContentType } from './content-type.enum';
+
 export class AnswerChoice {
   id: string;
   revision: string;
   contentId: string;
   round: number;
   selectedChoiceIndexes: number[];
+  creationTimestamp: Date;
+  format: ContentType;
 }

src/app/services/http/content-answer.service.ts

@@ -42,7 +42,7 @@ export class ContentAnswerService extends BaseHttpService {
   }
 
   addAnswerChoice(answerChoice: AnswerChoice): Observable<AnswerChoice> {
-    const url = this.apiUrl.base + this.apiUrl.answer + this.apiUrl.choice + '/';
+    const url = this.apiUrl.base + this.apiUrl.answer + '/';
     return this.http.post<AnswerChoice>(url, answerChoice, httpOptions).pipe(
       catchError(this.handleError<AnswerChoice>('addAnswerChoice'))
     );