How to clear Buefy input after event (VueJS)? - input

I am trying to clear Buefy input with an event but nothing is happening. However this code work with basic input.
Here is my HTML:
<b-field>
<b-input
id="itemForm"
placeholder="label"
#keyup.enter.native="addItem">
</b-input>
</b-field>
Here is my script:
methods: {
addItem () {
var input = document.getElementById('itemForm')
if (input.value !== '') {
this.items.push({
name: input.value
})
input.value = ''
}
}
}

I tried, and i am not sure but the only way to use #keyup.enter using buefy is: #keyup.native.enter
However i think you want something like this: see it in action
<div id="app" class="container">
<ul>
<li v-for="section in sections" :key="section.id">
{{section.name}}
</li>
</ul>
<section >
<b-field label="Name">
<b-input v-model.trim="name" #keyup.native.enter="addItem()" placeholder="Write and press enter"></b-input>
</b-field>
</section>
</div>
And the script:
Vue.use(Buefy.default)
const example = {
data() {
return {
sections: [],
name: ''
}
},
methods: {
addItem () {
this.sections.push({
name: this.name,
id: Date.now()
})
this.name = ''
}
}
}
const app = new Vue(example)
app.$mount('#app')

Related

How to fire an event in mount in Vuejs

I have a sidebar that you can see below:
<template>
<section>
<div class="sidebar">
<router-link v-for="(element, index) in sidebar" :key="index" :to="{ name: routes[index] }" :class='{active : (index==currentIndex) }'>{{ element }}</router-link>
</div>
<div class="sidebar-content">
<div v-if="currentIndex === 0">
Profile
</div>
<div v-if="currentIndex === 1">
Meine Tickets
</div>
</div>
</section>
</template>
<script>
export default {
mounted() {
EventBus.$on(GENERAL_APP_CONSTANTS.Events.CheckAuthentication, () => {
this.authenticated = authHelper.validAuthentication();
});
console.log()
this.checkRouter();
},
data(){
return {
currentIndex:0,
isActive: false,
sidebar: ["Profile", "Meine Tickets"],
routes: ["profile", "my-tickets"],
authenticated: authHelper.validAuthentication(),
}
},
computed: {
getUser() {
return this.$store.state.user;
},
},
methods: {
changeSidebar(index) {
this.object = this.sidebar[index].products;
this.currentIndex=index;
},
checkRouter() {
let router = this.$router.currentRoute.name;
console.log(router);
if(router == 'profile') {
this.currentIndex = 0;
} else if(router == 'my-tickets') {
this.currentIndex = 1;
}
},
},
}
</script>
So when the link is clicked in the sidebar, the route is being changed to 'http://.../my-account/profile' or 'http://.../my-account/my-tickets'. But the problem is currentIndex doesn't change therefore, the content doesn't change and also I cannot add active class into the links. So how do you think I can change the currentIndex, according to the routes. Should I fire an event, could you help me with this also because I dont know how to do it in Vue. I tried to write a function like checkRouter() but it didn't work out. Why do you think it is happening? All solutions will be appreciated.
So if I understand correctly, you want currentIndex to be a value that's based on the current active route? You could create it as a computed property:
currentIndex: function(){
let route = this.$router.currentRoute.name;
if(router == 'profile') {
return 0;
} else if(router == 'my-tickets') {
return 1;
}
}
I think you could leverage Vue's reactivity a lot more than you are doing now, there's no need for multiple copies of the same element, you can just have the properties be reactive.
<div class="sidebar-content">
{{ sidebar[currentIndex] }}
</div>
Also, you might consider having object be a computed property, something like this:
computed: {
getUser() {
return this.$store.state.user;
},
object() {
return this.sidebar[currentIndex].products;
}
},
Just use this.$route inside of any component template. Docs .You can do it simple without your custom logic checkRouter() currentIndex. See simple example:
<div class="sidebar-content">
<div v-if="$route.name === 'profile'">
Profile
</div>
<div v-if="$route.name === 'my-tickets'">
Meine Tickets
</div>
</div>

Vue Component Select option from list item

I'm new to Vue. I have an autocomplete component that used AXIOS to get the data. When I type in at least 3 characters, it does display the results in a list item, however I can't seem to figure out how to actually select the option and populate the text field.
Here is the code
<template>
<div>
<input type="text" placeholder="Source client" v-model="query" v-on:keyup="autoComplete" #keydown.esc="clearText" class="form-control">
<div class="panel-footer" v-if="results.length">
<ul class="list-group">
<li class="list-group-item" v-for="result in results">
<span> {{ result.name + "-" + result.oid }} </span>
</li>
</ul>
</div>
</div>
</template>
<script>
import axios from 'axios'
export default{
data(){
return {
selected: '',
query: '',
results: []
}
},
methods: {
clearText(){
this.query = ''
},
autoComplete(){
this.results = [];
if(this.query.length > 2){
axios.get('/getclientdata',{params: {query: this.query}}).then(response => {
this.results = response.data;
});
}
}
}
}
</script>
Any help would be appreciated!
Writing an autocomplete is a nice challenge.
You want this component to act like an input. That means that if you'd use your autocomplete component, you will probably want to use it in combination with v-model.
<my-autocomplete v-model="selectedModel"></my-autocomplete>
To let your component work in harmony with v-model you should do the following:
Your component should accept a prop named value, this may be a string, but this may also be an object.
In the example above the value of selectedModel will be available inside your autocomplete component under '{{value}}' (or this.value).
To update the value supplied you $emit an input event with the selected value as second parameter. (this.$emit('input', clickedItem))
Inside your autocomplete you have query, which holds the search term. This is a local variable and it should be. Don't link it to value directly because you only want to change the value when a user selects a valid result.
So to make the example work you could do the following:
<template component="my-autocomplete">
<div>
<input type="text" placeholder="Source client" v-model="query" v-on:keyup="autoComplete" #keydown.esc="clearText" class="form-control">
<div class="panel-footer" v-if="results.length">
<ul class="list-group">
<li class="list-group-item" v-for="result in results" #click="selectValue(result)">
<span> {{ result.name + "-" + result.oid }} </span>
</li>
</ul>
</div>
</div>
</template>
<script>
//import axios from 'axios'
export default{
props: ['value'],
data(){
return {
selected: '',
query: '',
results: []
}
},
methods: {
clearText(){
this.query = ''
},
autoComplete(){
this.results = [];
if(this.query.length > 2){
this.results = [{ name: 'item 1', oid: '1' }, {name: 'item 2', oid: '2'}];
//axios.get('/getclientdata',{params: {query: this.query}}).then(response => {
//this.results = response.data;
//});
}
},
selectValue(selectedValue) {
this.$emit('input', selectedValue);
}
}
}
</script>
I commented out the axios part for demonstration purposes.
To verify the workings:
<template>
<div>Autocomplete demo:
<my-autocomplete v-model="selectedRow">
</my-autocomplete>
Selected value: <pre>{{selectedRow}}</pre>
</div>
</template>
<script>
export default {
data() {
return {
selectedRow: null
}
}
}
</script>
Now the autocomplete does what it should, it allows you to search and pick a valid result from the list.
One problem remains though. How do you display the selected value. Some options are:
Copy the value to query, this works seemlessly if all your options are strings
Copy the value of result.name to query, this would make the solution work
Accept a scoped slot from the parent component which is responsible for displaying the selected item.
I will demonstrate option 2:
<template component="my-autocomplete">
<div>
<input type="text" placeholder="Source client" v-model="query" v-on:keyup="autoComplete" #keydown.esc="clearText" class="form-control">
<div class="panel-footer" v-if="results.length">
<ul class="list-group">
<li class="list-group-item" v-for="result in results" #click="selectValue(result)">
<span> {{ result.name + "-" + result.oid }} </span>
</li>
</ul>
</div>
</div>
</template>
<script>
//import axios from 'axios'
export default{
props: ['value'],
data(){
return {
selected: '',
query: '',
results: []
}
},
mounted() {
if (this.value && this.value.name) {
this.query = this.value.name;
}
},
// Because we respond to changes to value
// we do not have to do any more work in selectValue()
watch: {
value(value) {
if (this.value && this.value.name) {
this.query = this.value.name;
} else {
this.query = '';
}
}
},
methods: {
clearText(){
this.query = ''
},
autoComplete(){
this.results = [];
if(this.query.length > 2){
this.results = [{ name: 'item 1', oid: '1' }, {name: 'item 2', oid: '2'}];
//axios.get('/getclientdata',{params: {query: this.query}}).then(response => {
//this.results = response.data;
//});
}
},
selectValue(selectedValue) {
this.$emit('input', selectedValue);
}
}
}
</script>
A working example can be found here: https://jsfiddle.net/jangnoe/4xeuzvhs/1/

How to toggle between DIVs with bound data in Vue?

So the problem I'm facing is that I have a template that fetches data from a Realtime Firebase Database and at the same time the user can import more data through an input element. I'm using Vue.js and I need the data to be bound to each other.
Here is my template:
<template>
<ul>
<li>
<input type="text" v-model="email" v-on:keyup.enter="addData()"/>
<img #click="addData()" src="#/assets/Plus.png" />
</li>
</ul>
<ul>
<li v-for="(item, key) in emails" :key="key">
<div>
<p>{{ item.data }}</p>
<img #click="deleteDataByKey(key)" src="#/assets/Delete.png" />
</div>
<div class="first">
<input type="text" v-model="comment[key]" v-on:keyup.enter="addComment(key, comment[key])"/>
<img #click="addComment(key, comment[key])" src="#/assets/Plus.png" />
</div>
<div class="second">
<p>{{ comment[key] }}</p>
<img #click="deleteCommentByKey(key)" src="#/assets/Delete.png" />
</div>
</li>
</ul>
</template>
Now what is happening is that I want to show <div class="first"> when there is no comment and when there is one, <div class="second"> should be shown while hiding the first one.
I tried using v-if="comment[key]" but it will toggle the divs straight away.
I also tried to v-model.lazy which seems to be working but then the method to update the db is not called.
I tried using pure JS in the method to change the HTML but it doesn't seem to be working as well.
These are my methods and data:
data() {
return {
emailList: [],
email: "",
comment: []
};
},
addData() {
db.ref("emailItems").push({
data: data
});
this.email = "";
this.fetchData();
},
deleteDataByKey(key) {
db.ref("emailItems"+key).remove();
this.fetchData();
},
addComment(key, comment) {
db.ref(`emailItems/${key}/comment`).set(comment);
},
deleteCommentByKey(key){
db.ref("comment/"+key).remove();
this.fetchData();
},
fetchData() {
db.ref("emailItems")
.once("value")
.then(snapshot => {
this.emailList = snapshot.val().emailItems;
});
}
And the db structure looks like this
Any help would be highly appreciated...
I think you should build more on the (arguably) biggest features of Vue, namely: reactivity & components.
Break down the logic a bit more, until you arrive at elements that do only one thing - those elements can be your components. Then build up the business logic from those atomic components.
Vue.component('NewEmail', {
data() {
return {
email: null,
}
},
methods: {
handleKeyup() {
this.$emit("add-email", {
email: this.email,
comment: null
})
this.email = null
}
},
template: `
<div>
<label>
NEW EMAIL: <input
type="email"
placeholder="Type in an email"
v-model="email"
#keyup.enter="handleKeyup"
/>
</label>
</div>
`
})
Vue.component('SingleEmailRow', {
props: {
email: {
type: Object,
default: null,
}
},
methods: {
handleDeleteClick() {
this.$emit('remove-email', this.email)
},
},
template: `
<li
class="d-flex"
>
<div>
{{ email.email }}
</div>
<div>
<button
#click="handleDeleteClick"
>
X
</button>
</div>
<component
:is="email.comment ? 'HasEmailComment' : 'NoEmailComment'"
:email="email"
v-on="$listeners"
></component>
</li>
`
})
Vue.component('HasEmailComment', {
props: {
email: {
type: Object,
required: true
}
},
methods: {
handleUpdateComment() {
this.$emit('update:comment', { ...this.email,
comment: null
})
}
},
template: `
<div
class="d-flex"
>
<div>
{{ email.comment }}
</div>
<button
title="Remove comment"
#click="handleUpdateComment"
>
-
</button>
</div>
`
})
Vue.component('NoEmailComment', {
props: {
email: {
type: Object,
required: true
}
},
data() {
return {
comment: null,
}
},
methods: {
handleUpdateComment() {
this.$emit('update:comment', { ...this.email,
comment: this.comment
})
}
},
template: `
<div
class="d-flex"
>
<div>
<input
v-model="comment"
type="text"
placeholder="Write a comment"
/>
</div>
<button
title="Add comment"
#click="handleUpdateComment"
>
+
</button>
</div>
`
})
new Vue({
el: "#app",
data() {
return {
emailList: [],
}
},
methods: {
handleAddEmail(newEmail) {
if (!this.emailList.find(({
email
}) => email === newEmail.email)) {
this.emailList.push(newEmail)
}
},
handleRemoveEmail(toRemove) {
this.emailList = this.emailList.filter(({
email
}) => {
return email !== toRemove.email
})
},
handleUpdateComment(newEmail) {
this.emailList = this.emailList.map(email => {
if (email.email === newEmail.email) {
return newEmail
} else {
return email
}
})
}
}
})
.d-flex {
display: flex;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<new-email #add-email="handleAddEmail"></new-email>
<ul v-for="(email, i) in emailList" :key="i">
<single-email-row :email="email" #remove-email="handleRemoveEmail" #update:comment="handleUpdateComment"></single-email-row>
</ul>
</div>
OK, the comment handling in SingleEmailRow could be put to its separate component (based on my thoughts above).
The main points in the snippet above are:
there's only one original data source (emailList in the root component) that is passed down as props where needed, and all the other components & functions just manipulate THAT list via events (reactivity is great!)
because all the components are based on one central data source, they just have to work with the item they get as props. (Ok, they have some internal state, but hey - this is only a snippet! :) )
the two components have only one responsibility:
NewEmail: to add an item to the central emailList
SingleEmailRow: to manage the data in ONE email item
I hope this helps you a bit to reach a solution for your problem.
EDIT: UPDATING SNIPPET
I had to update the snippet, because I wasn't satisfied with it.
Modifications:
adding two new components: HasEmailComment, NoEmailComment
updated SingleEmailRow with the two new components
Now, all the components have only one task to do.

Vue.JS: turn every matching case to a hyperlink

I'm trying to turn every matching case from an array to a link
// I call the message component using this from another component
<ul>
<li
v-for="message in message"
v-bind:message="message"
is="message"
</ul>
// in the message component I have a mounted that reads the text message
// from the server and filters hashtags
data () {
return {
hashtagsInMessages: ''
};
},
mounted () {
const filterMessageHashtags = _.filter( this.message,text.split( ' ' ), value => hashtags.indexOf(value) != -1 );
this.hashtagsInMessages = filterMessageHashtags;
}
With this, how can I turn a message to a link, for instance:
hey how you doing #cool #fire #water bro?
To this, using Vue.js
hey how you doing #cool #fire #water bro?
This is my solution:
Vue.component("message-el", {
template: "#message",
props: ["message"],
created: function (){
this.messages = this.message.split(" ");
this.hashTags = this.messages.filter(function (message){
return message[0] === "#";
});
},
data: function (){
return {
messages: [],
hashTags: [],
};
},
methods: {
}
});
var app = new Vue({
el: "#app",
data: function (){
return {
}
},
methods: {
}
});
.none {
display: none;
}
<script src="https://unpkg.com/vue#2.5.2/dist/vue.js"></script>
<div id="app">
<message-el message="this is a message #tag1 #tag2">
</message-el>
</div>
<div id="message" class="none">
<div>
<div>
<template v-for="message in messages">
<a v-if="hashTags.indexOf(message) > -1" :href="'#' + message">
{{ message }}
</a>
<span v-else>
{{ message }}
</span>
&nbsp
</template>
</div>
</div>
</div>

Why is object not defined?

I want to try Vue.js 2 and started with a simple example. I've took this one from here https://jsfiddle.net/gmsa/gfg30Lgv/ and created a simple project with it. After I divided this code into files the project doesn't work. So I've made a data property a function:
data: function(){
return {
tabs: [{
name: "tab1",
id : 0,
isActive: true
}],
activeTab: {}
}
},
But there's an error in a console: Uncaught ReferenceError: newTab is not defined.
Project: https://github.com/rinatoptimus/vue-webpack-delete
File QueryBrowserContainer:
<template>
<div id="queryBrowserContainer">
<p>queryBrowserContainer text</p>
<ul class="nav nav-tabs" role="tablist">
<li role="presentation" v-for="tab in tabs" :class="{active:tab.isActive}">
{{ tab.name }}
</li>
<li>
<button type="button" class="btn btn-primary" #click="openNewTab">New tab</button>
</li>
</ul>
<div class="tab-content">
<div v-for="tab in tabs" role="tabpanel" class="tab-pane" :class="{active:tab.isActive}">
<app-querybrowsertab :tab="tab"></app-querybrowsertab>
</div>
</div>
<pre>{{ $data | json }}</pre>
</div>
</template>
<script>
import QueryBrowserTab from './QueryBrowserTab.vue';
export default {
data: function(){
return {
tabs: [{
name: "tab1",
id : 0,
isActive: true
}],
activeTab: {}
}
},
ready: function () {
this.setActive(this.tabs[0]);
},
methods: {
setActive: function (tab) {
var self = this;
tab.isActive = true;
this.activeTab = tab;
/*this.activeTab.isActive = true;
console.log("activeTab name=" + this.activeTab.name);*/
this.tabs.forEach(function (tab) {
if (tab.id !== self.activeTab.id) { tab.isActive = false;}
});
},
openNewTab: function () {
newTab = {
name: "tab" + (this.tabs.length + 1),
id: this.tabs.length,
isActive: true
};
this.tabs.push(newTab);
this.setActive(newTab);
/*this.activeTab = newTab;
console.log("### newtab name=" + newTab.name);*/
},
test: function() {
alert('676767');
},
closeTab: function () {
console.log("### CLOSE!");
}
}
}
File QueryBrowserTab:
<template>
<div>
<p>querybbbTab</p>
<h3>{{tab.name}}</h3>
<h3>{{tab.id}}</h3>
</div>
</template>
<script>
import QueryBrowserContainer from './QueryBrowserContainer.vue';
export default {
data: function () {
return {
databaseOptions: [],
};
},
props: ['tab'],
methods: {},
components: {
'app-querybrowsercontainer': QueryBrowserContainer
}
}
</script>
File App:
<template>
<div id="app">
<app-message></app-message>
<app-querybrowsertab></app-querybrowsertab>
<app-querybrowsercontainer></app-querybrowsercontainer>
</div>
</template>
<script>
export default {
name: 'app',
data () {
return {}
}
}
</script>
It seems in file: QueryBrowserTab, you have not passed tab props, but you are using it, make sure you pass tab as props from whatever places you are using it.
As stated in the docs here, you can pass props to a component like following:
<app-querybrowsertab :tab="tab"></app-querybrowsertab>
which you are already doing in app-querybrowsercontainer,but in file App, you are not passing the prop, which might be the source of error for you.