我从我的服务器收到一个包含问题和不同选项的json:
[
{"description":"what is a color","questionID":"1","options":[{"response":"blue","optionID":"1"},{"response":"red","optionID":"2"},{"response":"football","optionID":"3"}]},
{"description":"what is a sport","questionID":"2","options":[{"response":"working","optionID":"4"},{"response":"playing","optionID":"5"},{"response":"dad","optionID":"6"},{"response":"chess","optionID":"7"}]}
]
使用表单构建器我创建了一个表单: 如果我按下提交按钮,我希望将这个json发送到我的服务器:
{
"answers": [{"questionID":"1", "selectedoptionIDS":[{"selectedOptionID":"2"}]},
{"questionID":"2", "selectedoptionIDS":[{"selectedOptionID":"1"},{"selectedOptionID":"3"}]}
],
"email": "test@test.com"
}
我知道如何使用表单生成器构建表单,但当我按提交按钮时,我在正确响应JSON方面遇到了麻烦。这肯定是因为我无法处理这些复选框。有人能帮我解决吗? HTML页面
<form [formGroup]="examForm" (ngSubmit)="onSubmit(examForm.value)">
<div formArrayName="answers">
<div *ngFor="let question of questions; let i=index">
<label>{{i+1}}) {{question.description}}</label>
<br />
<div *ngFor="let response of question.options">
<input type="checkbox" value="response.optionID" />
{{response.response}}
</div>
</div>
</div>
<label>Email:</label>
<input class="form-control" id="email" type="text" formControlName="email">
<div class="block-content block-content-full block-content-sm bg-body-light font-size-sm">
<button class="btn btn-primary" type="submit">Submit</button>
</div>
</form>
TS页面
import { Component, OnInit } from '@angular/core';
import { ExamSimulatorService } from '../services/exam-simulator.service';
import { ActivatedRoute } from '@angular/router';
import { FormBuilder, FormArray } from '@angular/forms';
@Component({
selector: 'app-exam',
templateUrl: './exam.component.html'
})
export class ExamComponent implements OnInit {
software;
questions;
examForm;
constructor(
private examSimulatorService: ExamSimulatorService,
private formBuilder: FormBuilder
) {
this.examForm = this.formBuilder.group({
email: "",
answers: this.formBuilder.array([
this.initAnswer()])
})
}
buildForm() {
for (var i = 0; i < this.questions.length() + 1; i++) {
this.addAnswer();
}
}
initAnswer() {
return this.formBuilder.group({
questionID: "",
selectedOptionIDs: this.formBuilder.array([
this.initOptions()
])
})
}
initOptions() {
return this.formBuilder.group({
selectedOptionID: ""
})
}
addAnswer() {
const answers = <FormArray>this.examForm["controls"]["answers"];
answers.push(this.initAnswer())
console.log(this.examForm);
}
addOption(i) {
const options = <FormArray>this.examForm["controls"]["answers"]["controls"][i]["controls"]["selectedOptionIDs"]
options.push(this.initOptions())
}
ngOnInit() {
this.activatedRoute.paramMap
.subscribe(params => {
this.software = params['params']['software'];
this.examSimulatorService.getExam(this.software).subscribe(response =>
this.questions = response["questions"]["questionList"]);
})
setTimeout(() => this.buildForm(), 200)
}
onSubmit(values) {
//this.examSimulatorService.addQuestion(values).subscribe(
// (responses) => {
// console.log(responses);
// });
//this.options.clear();
console.log(values);
}
}