edit(item: MentorForm) {
     this.dialog.open(MentorFormDialog, {email: item.email, editMode: true}).then(form => {
         this.service.save(item.id, form).subscribe(() => {
             this.loadData();
         });
     });
 }

 open() {
     this.dialog.open(MentorFormDialog).then(form => {
         this.service.save(0, form).subscribe(id => {
             this.loadData();
         });
     });
 }

 showSettingsDialog() {
     this.dialog.open(RollcallSettingsDialog, this.rollcallForm.settings).then(result => {
         this.service.updateSettings(result).subscribe(() => {
             this.rollcallForm.applySettings();
         });
     });
 }

 addItem() {
     const its = this.form.items.map(item => item.id);
     this.dialog.open(MajorDialog, {majors: this.majors, items: its}).then(result => {
         const item = new AgreementItem(this.form, result);
         this.form.addItem(item);
     });
 }

 open() {
     this.dialog.open(DeptAdminDialog).then(form => {
         this.service.create(form).subscribe(id => {
             this.loadData();
         });
     });
 }

 open() {
     this.dialog.open(MentorSelectDialog).then(result => {
         const idList = this.selectors.filter(s => s.checked).map(s => s.data.id);
         this.service.setMentor({ids: idList, teacherId: result})
         .subscribe(() => {
             this.router.navigate(['done']);
         });
     });
 }

 upload(prefix: string) {
     this.fileNames[prefix] = undefined;
     const uploadUrl = this.uploadUrl;
     const xsrfToken = this.service.xsrfToken;
     this.dialog.open(UploaderDialog, {prefix, uploadUrl, xsrfToken})
     .then(() => {
         this.refresh();
     });
 }

 open() {
     this.dialog.open(StudentAdminDialog).then(form => {
         this.service.batchSave(null, form).subscribe(dto => {
             if (dto.logs) {
                 this.dialogs.error(dto.logs);
             }
         });
     });
 }

 uploadReview() {
     const uploadUrl = this.service.getUploadUrl(this.form.id);
     const xsrfToken = this.service.xsrfToken;
     this.dialog.open(UploaderDialog, {uploadUrl, xsrfToken})
     .then(() => {
         this.service.loadFileNames(this.form.id, undefined).subscribe(dto => {
             this.fileNames = dto.fileNames;
         });
     });
 }

 this.paperFormService.loadPaperForm(this.vm.id).subscribe(data => {
     const paper = data.form ? data.form : [];
     this.dialog.open(PaperFormDialog, {paper, uploadUrl, xsrfToken, fileType})
     .then(result => {
         this.paperFormService.createPaperForm(this.vm.id, result).subscribe(() => {
             this.loadData(this.vm.id);
             this.pending = true;
         });
     });
 });