/**
  * is executed, when the delete button is pressed
  *
  * @param viewCategory The category to delete
  */
 public async onDeleteButton(viewCategory: ViewCategory): Promise<void> {
     const title = this.translate.instant('Are you sure you want to delete this category?');
     const content = viewCategory.getTitle();
     if (await this.promptService.open(title, content)) {
         this.repo.delete(viewCategory).then(() => this.onCancelButton(), this.raiseError);
     }
 }

 /**
  * Handler for deleting multiple entries. Needs items in selectedRows, which
  * is only filled with any data in multiSelect mode
  */
 public async deleteSelected(): Promise<void> {
     const title = this.translate.instant('Are you sure you want to delete all selected elections?');
     if (await this.promptService.open(title, null)) {
         for (const assignment of this.selectedRows) {
             await this.repo.delete(assignment);
         }
     }
 }

 /**
  * Deletes the given motions. Asks for confirmation.
  *
  * @param motions The motions to delete
  */
 public async delete(motions: ViewMotion[]): Promise<void> {
     const content = this.translate.instant('This will delete all selected motions.');
     if (await this.promptService.open('Are you sure?', content)) {
         for (const motion of motions) {
             await this.repo.delete(motion);
         }
     }
 }

 /**
  * Deletes the given motions. Asks for confirmation.
  *
  * @param motions The motions to delete
  */
 public async delete(motions: ViewMotion[]): Promise<void> {
     const title = this.translate.instant('Are you sure you want to delete all selected motions?');
     if (await this.promptService.open(title, null)) {
         for (const motion of motions) {
             await this.repo.delete(motion);
         }
     }
 }

 /**
  * Handler for deleting multiple entries. Needs items in selectedRows, which
  * is only filled with any data in multiSelect mode
  */
 public async deleteSelected(): Promise<void> {
     const content = this.translate.instant('This will delete all selected assignments.');
     if (await this.promptService.open('Are you sure?', content)) {
         for (const assignment of this.selectedRows) {
             await this.repo.delete(assignment);
         }
     }
 }

 /**
  * Handler for the 'delete poll' button
  *
  * TODO: Some confirmation (advanced logic (e.g. not deleting published?))
  */
 public async onDeletePoll(): Promise<void> {
     const title = this.translate.instant('Are you sure you want to delete this ballot?');
     if (await this.promptService.open(title, null)) {
         await this.assignmentRepo.deletePoll(this.poll).then(null, this.raiseError);
     }
 }

 /**
  * is executed, when the delete button is pressed
  *
  * @param viewCategory The category to delete
  */
 public async onDeleteButton(viewCategory: ViewCategory): Promise<void> {
     const content = this.translate.instant('Delete') + ` ${viewCategory.name}?`;
     if (await this.promptService.open('Are you sure?', content)) {
         this.repo.delete(viewCategory).then(() => this.onCancelButton(), this.raiseError);
     }
 }