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VisualizaçõesVUE change value only after clicking submit
I have a code like this. In this code, a user wants to change the current name. The current name is also displayed at top of the page.
// template
<div>{{ currentUser.name }}</div>
<v-text-field
required
v-model="currentUser.name"
class="mb-3"
></v-text-field>
<v-btn>submit</v-btn>
//script
data() {
currentUser: null
},
methods: {
getUser(id) {
//my GET method here
},
updateUser() {
//my PUT method here
}
The data is from an API. The current v-text-field is filled with the current name. Right now, if I change the value in the text field, the div value also changes. How to make it change only when the user has already clicked (let's say) a submit button and the process succeed?
3 Respostas
Responde à pergunta0
This may work fine
<template>
<div>
<div>{{ currentUser.name }}</div>
<v-text-field required class="mb-3" ref="textField"></v-text-field>
<button @click="updateUsername">update user's name</button>
</div>
</template>
<script>
export default {
data() {
return {
currentUser: {
name: '',
},
}
},
methods: {
updateUsername() {
this.currentUser.name = this.$refs.textField.internalValue
},
},
}
</script>
You could also use a debounce, store it in another state but having to use a $refs is okay here.
Also, I'm not a Vuetify user, hence I'm not sure what all of those value are about but you have some nice choice overall.
0
Adding on to Kissu's answer, if you wish to change the value on blur (when you click away), you have to do the following.
Since Vuetify does not provide a lazy prop to only allow value update on change event, you have to do it yourself. Use the :value prop and bind it to a computed property and provide a getter setter to the computed property.
This will only trigger the change on blur, when you click away from the input, or press enter or press tab.
<template>
<div>{{ currentUserName }}</div>
<v-text-field
required
:value="currentUserName"
@change="onNameChange"
class="mb-3"
></v-text-field>
</template>
<script>
...
methods: {
onNameChange(event) {
this.currentUserName = event.target.value;
}
}
computed: {
currentUserName: {
get() {
return this.currentUser.name
},
set(newName) {
this.currentUser.name = newName;
}
}
}
...
</script>
0
<div>{{ currentUser.name }}</div>
<v-text-field
required
:value="currentUser.name"
@input="nameChanged" //here maybe @change="xxx"
class="mb-3"
></v-text-field>
<v-btn @click="updateUser">submit</v-btn>
//script
data() {
currentUser: null
},
methods: {
nameChanged(e) {
console.log(`e`,e) //The value is based on the printed value
this.tempName = e
},
updateUser() {
this.currentUser.name = this.tempName
}
}