[英]Selected option in radio button is not working
我正在使用Cordova和vue.js在測驗應用程序中工作,其中將從API提取問題和選項。 在這種情況下,將使用計時器來指示剩余時間。 為此,我將計時器設置在Mounted()中,其中有一個回調函數,稍后將使用setInterval將其每1秒調用一次。 但是問題是當計時器打開時,如果我選擇一個單選按鈕,則該值為false,那么它將朝四個按鈕中的最后一個單選按鈕移動。 如果值為true,則它不會移動。 計時器關閉時不會發生此問題,然后工作正常。 請幫幫我
<template>
<v-ons-page>
<div class="test_body">
<v-ons-card class="test_card">
<div class="timer" v-if="!timeStop">
<div class="minutes" v-text="this.data.minutes"></div>
<div class="seconds" id="seconds" v-text="secondsShown"></div>
</div>
<div class="timer" v-else>
<div class="minutes" v-text="this.data.minutes"></div>
<div class="seconds" v-text="secondsShown"></div>
</div>
<div v-for="(ques,index) in questions">
<div v-show="index===ques_index">
<p class="test_text">{{ ques.question_text }} </p>
<ol align="left">
<li class="test_list" v-for="choice in ques.choices">
<input type="radio" v-bind:value="choice.is_right" v-bind:name="index"
v-model=" userResponses[index] "> {{ choice.choice_text }}
</li>
</ol>
<p class="test_number" align="right">{{index+1}} /{{questions.length}} </p>
<v-ons-button class="prev_next_button" modifier="cta" style="margin: 6px 0"
v-if="ques_index > 0" @click="prev">
Prev
</v-ons-button>
<v-ons-button class="prev_next_button" modifier="cta" style="margin: 6px 0" @click="next">
Next
</v-ons-button>
</div>
</div>
<div v-show="ques_index === questions.length">
<h2>
Quiz finished
</h2>
<p>
Total score: {{ score() }} / {{ questions.length }}
</p>
<v-ons-button class="prev_next_button" modifier="cta" style="margin: 6px 0" @click="congratz">
Congratulation
</v-ons-button>
</div>
</v-ons-card>
</div>
</v-ons-page>
</template>
<script>
import swal from 'sweetalert';
import congratz from './congratulation';
export default {
data() {
return {
minute: 0,
seconds: 0,
interval: null,
started: true,
questions: {},
ques_index: 0,
userResponses: [],
}
},
beforeMount() {
this.question();
},
mounted() {
this.loaded()
},
methods: {
congratz() {
swal({
text: "Congratulation on Your First Exam!",
});
this.pageStack.push(congratz)
},
question() {
this.$http({
method: 'post',
url: this.base_url + '/exam/api/',
auth: {
username: 'l360_mobile_app',
password: 'itsd321#'
},
data: {
"id": this.$store.state.user.id,
"duration": this.data.minutes
}
}).then((response) => {
//alert(response.data.questions[0].question_text);
//var questions = [];
this.questions = response.data.questions;
})
.catch((error) => {
// alert(error);
});
},
next: function () {
this.ques_index++;
},
prev: function () {
this.ques_index--;
},
score() {
var c = 0;
for (var i = 0; i < this.userResponses.length; i++)
if (this.userResponses[i])
c++;
return c;
},
loaded: function () {
this.interval = setInterval(this.intervalCallback, 1000)
},
intervalCallback: function () {
if (!this.started) return false
if (this.seconds == 0) {
if (this.data.minutes == 0) {
return null
}
this.seconds = 59
this.data.minutes--
} else {
this.seconds--
}
},
},
computed: {
secondsShown: function () {
if (this.seconds < 10) {
return "0" + parseInt(this.seconds, 10)
}
return this.seconds
},
timeStop: function () {
if (this.ques_index === this.questions.length) {
this.started = false;
return this.seconds;
}
}
},
props: ['pageStack']
}
</script>
<style>
</style>
為了保持輸入標簽的值唯一,請在choice_id
之后添加choice_id。 使用choice.is_right + '_' + choice.choice_id
代替choice.is_right
。 獲得值時,只需刪除_
和id
或檢查'true'
是否為值的子字符串。
<ol align="left">
<li class="test_list" v-for="choice in ques.choices">
<input type="radio" v-bind:value="choice.is_right + '_' + choice.choice_id" v-bind:name="index" v-model="userResponses[index]">{{ choice.choice_text }}
</li>
</ol>
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