How to submit a form using vue.js 2? - javascript

My view blade laravel like this :
<form slot="search" class="navbar-search" action="{{url('search')}}">
<search-header-view></search-header-view>
</form>
The view blade laravel call vue component (search-header-view component)
My vue component(search-header-view component) like this :
<template>
<div class="form-group">
<div class="input-group">
<input type="text" class="form-control" placeholder="Search" name="q" autofocus v-model="keyword">
<span class="input-group-btn">
<button class="btn btn-default" type="submit" id="submit-search"><span class="fa fa-search"></span></button>
</span>
<ul v-if="!selected && keyword">
<li v-for="state in filteredStates" #click="select(state.name)">{{ state.name }}</li>
</ul>
</div>
</div>
</template>
<script>
export default {
name: 'SearchHeaderView',
data() {
return {
baseUrl: window.Laravel.baseUrl,
keyword: null,
selected: null,
filteredStates: []
}
},
watch: {
keyword(value) {
this.$store.dispatch('getProducts', { q: value })
.then(res => {
this.filteredStates = res.data;
})
}
},
methods: {
select: function(state) {
this.keyword = state
this.selected = state
document.getElementById('submit-search').submit()
},
input: function() {
this.selected = null
}
},
}
</script>
I want to submit the form when user click the keyword
I try document.getElementById('submit-search').submit()
But on the console exist error like this :
TypeError: document.getElementById(...).submit is not a function
How can I solve this error?

You need to call submit() on the <form> element (which is the root element of the component):
this.$el.submit();
EDIT: Since you have updated your question, the above no longer applies.
To trigger a button click, just call click() on the button element:
<button ref="submitButton">Foo</button>
this.$refs.submitButton.click();
This is fine if your components are meant to be tightly-coupled, otherwise a cleaner solution would be to $emit an event from your <search-header-view> component and respond to it in the parent component, like this:
this.$emit('submit');
In parent component:
<search-header-view #submit="submit">
methods: {
submit() {
// Submit the form manually here (add a ref to your form element)
this.$refs.form.submit();
}
}

In the case where it says that submit is not a function even though you reference it correclt with $refs:
It looks like if a form control has a name or id of submit it will mask the form's submit method.
In my case I had name="submit" on my submit button, I removed it and it worked fine.

Just provide the #submit listener to your form :
<form slot="search" class="navbar-search" #submit="submited">
<search-header-view></search-header-view>
</form>
And the associated method :
methods: {
submited (e) {
// e is the form event, e.target is the form, do your things on submit
}
}

Related

Vue: Best way to submit form of child component from the parent component through method

I have 2 components.
Parent Component:
Vue.component('parent', {
template: '<div><child :counter="counter" :isSubmit="isSubmit" showButton="true"></child>'+
'<button v-on:click="changeCounter">Change Counter</button></div>',
data () {
return {
counter: 2,
isSubmit : false
}
},
methods : {
changeCounter () {
//retrieve value of counter dynamically let's say through ajax call.
this.counter = 9;
this.isSubmit = true;
}
}
})
Child Component:
Vue.component('child', {
template: '<form action="test.php" method="GET" ref="childForm">'+
'<input type="hidden" v-model="counter" name="counter" />'+
'<input type="submit" v-if="showButton" /></form>',
props: {
counter : {
type: Number,
default: 0
},
showButton:false,
isSubmit: false
},
watch : {
isSubmit (val) {
console.log("Inside watcher");
this.submitForm();
}
},
methods : {
submitForm () {
console.log(this.counter);// output-9
this.$refs.childForm.submit();
},
}
})
index.html
....
<div id="app>">
<parent></parent>
<parent></parent>
</div>
....
In this example, When I click on the "Change Counter" button, the form is submitted with the older value of the counter (i.e. submitted to /test.php?counter=2). Although props of child component are reactive in dev tools (counter = 9) it does not reflect while submitting the form. But it really works if I submit the form by the submit button on the child component (i.e. submitted to /test.php?counter=9).
Your help is appreciated. Please help me to understand why this kind of behaviour is shown and also seeking the solutions.
Thanks in advance.
Quick note
Since you're using GET requests, you could skip the whole <form> thing and just go directly to the URL
methods: {
changeCounter () {
this.counter = 9
window.location = `test.php?counter=${this.counter}`
}
}
Longer answer
You need to wait for the counter change to update the DOM in order to use a normal form submission.
To wait for state changes to effect the DOM, use $nextTick. I would also advise submitting the form via the submitForm method rather than watching a Boolean value. You can access the method by using refs.
Vue.component('child', {
template: `<form action="test.php" method="GET" ref="childForm">
<input type="hidden" :value="counter" name="counter" />
<input type="submit" v-if="showButton" />
</form>`,
props: {
counter : {
type: Number,
default: 0
},
showButton: Boolean
},
methods: {
async submitForm () {
await this.$nextTick() // wait for the DOM to update
this.$refs.childForm.submit()
}
}
})
Vue.component("parent", {
template: `<div>
<child :counter="counter" :show-button="true" ref="form"></child>
<button #click="changeCounter">Change Counter</button>
</div>`,
data: () => ({ counter: 2 }),
methods: {
changeCounter () {
this.counter = 9
this.$refs.form.submitForm() // call the child component method
}
}
})

Populate input fields with data from vuex state in vue

I have the following code snippet from my app component:
<template>
<div>
<h3>Basic</h3>
<div v-for="(field, index) in basics" :key="index">
<input v-model="basics.name" placeholder="Name" type="text">
<br>
<br>
<input v-model="basics.email" placeholder="Email" type="email">
<br>
<hr/>
<button #click.prevent="addField">Add</button>
<button #click.prevent="removeField(index)">Remove</button>
<br>
<button #click.prevent="back">Back</button>
<button #click.prevent="toNext">Next</button>
</div>
</div>
</template>
<script>
import { mapActions } from "vuex";
export default {
name: "Basics",
data() {
return {
basics: [{
name: "",
email: ""
}]
};
},
methods: {
...mapActions(["addBasicData"]),
addFied(){
this.basics.push({
name: "",
email: ""
});
},
removeField(index){
this.basics.splice(index, 1);
},
toNext() {
this.addBasicData(this.basics);
this.$router.push({ name: "Location" });
},
back() {
this.$router.back();
}
}
};
</script>
In the code above when I finish filling up the form and click next button the data is sent to the state and we are guided to another route named "Location".
When I click back button in the "Location" route I'm back to route named "Basic".
The issue here is when I'm brought back to the route named "Basic" the form fields are empty although they are binded with the data object.
How do I populate these input fields when I return back to same route ?
Here is the working replica of the app: codesandbox
<div v-for="(field, index) in basics" :key="index">
<input v-model="basic.name" placeholder="Name" type="text">
<input v-model="basic.email" placeholder="Email" type="email">
<button #click.prevent="removeField(index)">Remove</button>
</div>
<hr/>
<button #click.prevent="addField">Add</button>
<br>
<button #click.prevent="back">Back</button>
<button #click.prevent="toNext">Next</button>
methods: {
addField() {
this.$store.commit('addBasic',{name:"",email:""} )
},
removeField(index) {
this.$store.commit('removeField',index )
},
toNext() {
this.$router.push({ name: "Location" });
}
},
computed: {
basic:{
get() {
return this.$store.getters.getBasic;
}
}
}
store.js
// ...
state: {
basic:[{name:"Jonny",email:"jonny#mail.com"},
{name:"Bonny",email:"Bonny#mail.com"}]
}
mutations: {
addBasic(state,value) {
state.basic.push(value)
},
removeField(state,index ){
state.basic.splice(index,1);
}
}
Thats just one of two versions how you can do it.
Or you can map the mutatations and call them directly in the click event.
https://vuex.vuejs.org/guide/mutations.html
https://vuex.vuejs.org/guide/forms.html
The add field button makes only sense outside of the loop.
addBasicData you dont need it
This method somehow works:
mounted() {
// eslint-disable-next-line no-unused-vars
let fromState = this.$store.state.Basics.basics;
if (fromState) {
this.basics.name = fromState.name;
this.basics.email = fromState.email;
}
}
I will really appreciate if there are any other convenient method to achieve this.
Tried mapState but didn't work

VueJS component display other component content

The objective: Vue component input-address has to be inside Vue component mail-composer and display a list of addresses only when someone click Address Book button. When someone click one of displayed mails or fill the To field by hand, createdmail.to has to get the value and I have to hide the list of addresses.
Vue component mail-composer. This component receives a list of addresses. (Everything is working here, I think the only part that is not working properly is v-model inside input-address tag)
Vue.component('mail-composer', {
props: ['addressesbook'],
methods: {
send: function(createmail) {
this.$emit('send', createmail);
}
},
template:
`
<div>
<input-address :addresses="addressesbook" v-model="createmail.to"></input-address>
<p><b>Subject: </b><input type="text" v-model="createmail.subject"></input></p>
<p><b>Body: </b><textarea v-model="createmail.body"></textarea></p>
<button #click="send(createmail)">Send</button>
</div>
`,
data(){
return{
createmail:{
to: '',
subject: '',
body: ''
}
}
}
});
The other Vue component is this one, which is in the same file. (I think all problems are here).
I need to display the list of addresses only when someone click Address Book button, and I have to hide it when someone click again the button or one of the emails which are in the list. When someone clicks a mail from list, the createmail.to property from the mail-composer has to get the value of the mail , also if I decide to put the mail by hand it has to occurs the same.
Vue.component('input-address',{
props:["addresses"],
template:
`
<div>
<label><b>To: </b><input type="text"></input><button #click="!(displayAddressBook)">Address Book</button></label>
<ul v-if="displayAddressBook">
<li v-for="address in addresses">
{{address}}
</li>
</ul>
</div>
`,
data(){
return{
displayAddressBook: false
}
}
})
There're some errors in your code:
#click="!(displayAddressBook)" should be #click="displayAddressBook = !displayAddressBook" - the first really does nothing (interesting), the second (suggested) sets the value of displayAddressBook to the opposite it has currently.
the input-address component does not really do anything with the input field (missing v-model)
the changes in the child component (input-address) are not sent back to the parent (added a watcher to do that in the child component)
the parent component (mail-composer) has to handle the values emitted from the child (added the #address-change action handler)
the v-for in your input-address component does not have a key set. Added key by using the index for it (not the best solution, but easy to do).
just put createmail.to: {{ createmail.to }} at the end of MailComposer, so you can see how it changes
Suggestions
always use CamelCase for component names - if you get used to it, then you get less "why is it not working?!" moments
watch for typos: createmail doesn't look good - createEmail or just simply createemail would be better (ok, it doesn't look so nice - maybe you should choose a totally different name for that)
Vue.component('InputAddress', {
props: ["addresses"],
data() {
return {
displayAddressBook: false,
address: null
}
},
template: `
<div>
<label><b>To: </b>
<input
type="text"
v-model="address"
/>
<button
#click="displayAddressBook = !displayAddressBook"
>
Address Book
</button>
</label>
<ul v-if="displayAddressBook">
<li
v-for="(address, i) in addresses"
:key="i"
#click="clickAddressHandler(address)"
>
{{address}}
</li>
</ul>
</div>
`,
watch: {
address(newVal) {
// emitting value to parent on change of the address
// data attribute
this.$emit('address-change', newVal)
}
},
methods: {
clickAddressHandler(address) {
// handling click on an address in the address book
this.address = address
this.displayAddressBook = false
}
}
})
Vue.component('MailComposer', {
props: ['addressesbook'],
data() {
return {
createmail: {
to: '',
subject: '',
body: ''
}
}
},
methods: {
send: function(createmail) {
this.$emit('send', createmail);
},
addressChangeHandler(value) {
this.createmail.to = value
}
},
template: `
<div>
<input-address
:addresses="addressesbook"
v-model="createmail.to"
#address-change="addressChangeHandler"
/>
<p>
<b>Subject: </b>
<input
type="text"
v-model="createmail.subject"
/>
</p>
<p>
<b>Body: </b>
<textarea v-model="createmail.body"></textarea>
</p>
<button #click="send(createmail)">Send</button><br />
createmail.to: {{ createmail.to }}
</div>
`
});
new Vue({
el: "#app",
data: {
addressesbook: [
'abcd#abcd.com',
'fghi#fghi.com'
]
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<mail-composer :addressesbook="addressesbook" />
</div>

How to use v-for with vuex to render forms if I need v-bind?

I have the following UI:
I will try to explain what is going on here. I have "Add message" button. When I click on the button I have new form with message: title, body, image, language (just multiple select via this plugin). I have clicked twice - I have 2 messages. Simple.
I don't use vue router. Implementation of my routing is with the help of backend. It means that for each route I have new vuex state.
I'm going to keep my messages in vuex, but it's impossible to use v-model for this case.
So, I will show my code.
store:
export const store = new Vuex.Store({
state: {
messages: [],
// more props are here ...
},
mutations: {
setMessages(state, messages) {
state.messages = messages;
},
// more setters are here
},
getters: {
getMessages: state => {
return state.messages;
},
// more getters are here
},
actions: {
updateMessagesAction: function({commit}, value) {
console.log(value)
},
}
});
Messages component:
<template>
<div>
<button class="btn btn-outline-info" #click.prevent="createNewMessage">
<i class="fa fa-language"/> Add message
</button>
<div>
// now it works with local state, but I need to work with vuex
<div v-for="(message, index) in messages">
<button class="btn btm-sm btn-danger" #click="deleteMessage(index, message)"><i class="fa fa-remove"/>
</button>
<b-collapse collapsed :id="`collapse-${index}`">
<form>
<div class="form-group">
<label class="typo__label">Languages</label>
<multiselect
v-model="message.languages"
:options="getLanguagesOptions"
:multiple="true"
:close-on-select="true"
:clear-on-select="false"
:preserve-search="true"
placeholder="Languages"
label="name"
track-by="id"
>
</multiselect>
</div>
<div class="form-group">
<label for="title" class="typo__label">Title</label>
<input type="text" id="title" class="form-control" autocomplete="off" ??? how to bind it to vuex ???? I dont understand :(((>
</div>
<div class="form-group">
<label for="text" class="typo__label">Body</label>
<textarea class="form-control" id="text" ??? how to bind it to vuex ???? I dont understand :(((/>
</div>
<div class="form-group">
<div id="upload-image">
<div v-if="!message.imageSrc">
<h2>Image</h2>
<input type="file" ref="file" #change="onFileChange($event, message)">
</div>
<div v-else>
<img :src="message.imageSrc"/>
<button #click.prevent="removeImage($event, message)">Remove</button>
</div>
</div>
</div>
<hr class="mb-2">
</form>
</b-collapse>
</div>
</div>
</div>
</template>
<script>
// imports
export default {
async created() {
// set languages from servert to vuex
let res = (await axios.post(this.urlForGettingLanguagesFromServerProp)).data;
this.$store.commit('setLanguagesOptions', res);
},
name: "MessagesComponent",
props: {
urlForGettingLanguagesFromServerProp: String,
uploadImageUrl: String,
deleteImageUrl: String,
selectedLanguagesIdsProp: {
type: Array,
default: () => []
},
},
methods: {
...mapMutations(['setLanguagesSelected']),
...mapActions(['updateMessagesAction']),
createNewMessage: function () {
let message = {
languages: [],
languagesIds: [],
title: "",
text: "",
imageSrc: "",
imageDbId: 0
};
this.messages.push(message);
},
deleteMessage: function (index, message) {
this.removeImage("", message);
this.messages.splice(index, 1);
},
onFileChange: async function (e, message) {
// this method add send image on server and save to state db image id ant path
},
removeImage: function (event, message) {
// remove image from server
}
},
computed: {
...mapGetters(['getLanguagesOptions', 'getMessages'])
},
watch: {
messages: {
deep: true,
immediate: true,
handler(val, oldVal) {
let message = JSON.parse(JSON.stringify(val));
this.$store.commit("setMessages", message);
}
}
},
data() {
return {
messages: [],
}
}
}
</script>
I call this component in a parent component. In the parent component I initiate vuex during update operation.
As you can see this component works with local state and synchronize local state with vuex. It's ok for Create operation. I can send messages to vuex, then I can take it in the parent component with other information and send it on the server. But what to do with Update? I have data from the server in the parent component but local state, of course, is empty for the Messages component. How to bind all messages to vuex and have ability to change each message separately? I mean, for example, to change title of the first message and to have it in vuex immediately?
Please, help me improve this component.

Clearing input in vuejs form

Just completed a todolist tutorial.
When submitting the form the input field doesn't clear.
After trying both:
document.getElementById("todo-field").reset();
document.getElementById("#todo-field").value = "";
The input field properly clears but it also deletes the todo.
It seems to delete the input field before it has time to push the new todo in the todos.text array.
Would love some input guys! Thanks!!
<template>
<form id="todo-field" v-on:submit="submitForm">
<input type="text" v-model="text">
</form>
<ul>
<li v-for="todo in todos">
<input class="toggle" type="checkbox" v-model="todo.completed">
<span :class="{completed: todo.completed}" class="col-md-6">
<label #dblclick="deleteTodo(todo)">
{{todo.text}}
</label>
</span>
</li>
</ul>
<script>
export default {
name: 'todos',
data () {
return {
text: '',
todos: [
{
text:'My Todo One',
completed: false
},
{
text:'My Todo Two',
completed: false
},
{
text:'My Todo Three',
completed: false
}
]// End of array
}
},
methods: {
deleteTodo(todo){
this.todos.splice(this.todos.indexOf(todo),1);
},
submitForm(e){
this.todos.push(
{
text: this.text,
completed: false
}
);
//document.getElementById("todo-field").reset();
document.getElementById("#todo-field").value = "";
// To prevent the form from submitting
e.preventDefault();
}
}
}
</script>
These solutions are good but if you want to go for less work then you can use $refs
<form ref="anyName" #submit="submitForm">
</form>
<script>
methods: {
submitForm(){
// Your form submission
this.$refs.anyName.reset(); // This will clear that form
}
}
</script>
What you need is to set this.text to an empty string in your submitForm function:
submitForm(e){
this.todos.push(
{
text: this.text,
completed: false
}
);
this.text = "";
// To prevent the form from submitting
e.preventDefault();
}
Remember that binding works both ways: The (input) view can update the (string) model, or the model can update the view.
Assuming that you have a form that is huge or simply you do not want to reset each form field one by one, you can reset all the fields of the form by iterating through the fields one by one
var self = this;
Object.keys(this.data.form).forEach(function(key,index) {
self.data.form[key] = '';
});
The above will reset all fields of the given this.data.form object to empty string. Let's say there are one or two fields that you selectively want to set to a specific value in that case inside the above block you can easily put a condition based on field name
if(key === "country")
self.data.form[key] = 'Canada';
else
self.data.form[key] = '';
Or if you want to reset the field based on type and you have boolean and other field types in that case
if(typeof self.data.form[key] === "string")
self.data.form[key] = '';
else if (typeof self.data.form[key] === "boolean")
self.data.form[key] = false;
For more type info see here
A basic vuejs template and script sample would look as follow
<template>
<div>
<form #submit.prevent="onSubmit">
<input type="text" class="input" placeholder="User first name" v-model="data.form.firstName">
<input type="text" class="input" placeholder="User last name" v-model="data.form.lastName">
<input type="text" class="input" placeholder="User phone" v-model="data.form.phone">
<input type="submit" class="button is-info" value="Add">
<input type="button" class="button is-warning" #click="resetForm()" value="Reset Form">
</form>
</div>
</template>
See ow the #submit.prevent="onSubmit" is used in the form element. That would by default, prevent the form submission and call the onSubmit function.
Let's assume we have the following for the above
<script>
export default {
data() {
return {
data: {
form: {
firstName: '',
lastName: '',
phone: ''
}
}
}
},
methods: {
onSubmit: function() {
console.log('Make API request.')
this.resetForm(); //clear form automatically after successful request
},
resetForm() {
console.log('Reseting the form')
var self = this; //you need this because *this* will refer to Object.keys below`
//Iterate through each object field, key is name of the object field`
Object.keys(this.data.form).forEach(function(key,index) {
self.data.form[key] = '';
});
}
}
}
</script>
You can call the resetForm from anywhere and it will reset your form fields.
For reset all field in one form you can use event.target.reset()
const app = new Vue({
el: '#app',
data(){
return{
name : null,
lastname : null,
address : null
}
},
methods: {
submitForm : function(event){
event.preventDefault(),
//process...
event.target.reset()
}
}
});
form input[type=text]{border-radius:5px; padding:6px; border:1px solid #ddd}
form input[type=submit]{border-radius:5px; padding:8px; background:#060; color:#fff; cursor:pointer; border:none}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.6/vue.js"></script>
<div id="app">
<form id="todo-field" v-on:submit="submitForm">
<input type="text" v-model="name"><br><br>
<input type="text" v-model="lastname"><br><br>
<input type="text" v-model="address"><br><br>
<input type="submit" value="Send"><br>
</form>
</div>
Markup
<template lang="pug">
form
input.input(type='text' v-model='formData.firstName')
input.input(type='text' v-model='formData.lastName')
button(#click='resetForm') Reset Form
</template>
Script
<script>
const initFromData = { firstName: '', lastName: '' };
export default {
data() {
return {
formData: Object.assign({}, initFromData),
};
},
methods: {
resetForm() {
// if shallow copy
this.formData = Object.assign({}, initFromData);
// if deep copy
// this.formData = JSON.parse(JSON.stringify(this.initFromData));
},
},
};
</script>
Read the difference between a deep copy and a shallow copy HERE.
I use this
this.$refs['refFormName'].resetFields();
this work fine for me.
This solution is only for components
If we toggle(show/hide) components using booleans then data is also removed.
No need to clean the form fields.
I usually make components and initialize them using booleans.
e.g.
<template>
<button #click="show_create_form = true">Add New Record</button
<create-form v-if="show_create_form" />
</template>
<script>
...
data(){
return{
show_create_form:false //making it false by default
}
},
methods:{
submitForm(){
//...
this.axios.post('/submit-form-url',data,config)
.then((response) => {
this.show_create_form= false; //hide it again after success.
//if you now click on add new record button then it will show you empty form
}).catch((error) => {
//
})
}
}
...
</script>
When use clicks on edit button then this boolean becomes true and after successful submit I change it to false again.
I had a situation where i was working with a custom component and i needed to clear the form data.
But only if the page was in 'create' form state, and if the page was not being used to edit an existing item. So I made a method.
I called this method inside a watcher on custom component file, and not the vue page that uses the custom component. If that makes sense.
The entire form $ref was only available to me on the Base Custom Component.
<!-- Custom component HTML -->
<template>
<v-form ref="form" v-model="valid" #submit.prevent>
<slot v-bind="{ formItem, formState, valid }"></slot>
</v-form>
</template>
watch: {
value() {
// Some other code here
this.clearFormDataIfNotEdit(this)
// Some other code here too
}
}
... some other stuff ....
methods: {
clearFormDataIfNotEdit(objct) {
if (objct.formstate === 'create' && objct.formItem.id === undefined) {
objct.$refs.form.reset()
}
},
}
Basically i checked to see if the form data had an ID, if it did not, and the state was on create, then call the obj.$ref.form.reset() if i did this directly in the watcher, then it would be this.$ref.form.reset() obvs.
But you can only call the $ref from the page which it's referenced.
Which is what i wanted to call out with this answer.
This is how I do it in Vue 3.
html:
<input type="text" v-model="state.name">
js:
import {reactive} from "vue";
const state = reactive({
name: ""
})
axios.post('/contact', state)
.then(res => {
if (res.status == 200) {
state.name = ""
}
})
Response status 200 being a successful submission of the form input. state.name is reactive and will be set to "" if the submission is successful.
if your using vue.js v-form you can simply do like
this.form.reset()
Documentation
Vform - Documentation

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