I used vue cli create to setup a basic boilerplate project. I did some small modifications that initially worked. Then at some point both of my components stopped working in the browser. With no warnings from vue-cli-service serve.
In the browser console I get the error Unknown custom element for both of my elements.
Here is my main.js;
import './sass/style.scss'
import Vue from 'vue'
import App from './App.vue'
Vue.config.productionTip = false
/*
new Vue({
render: h => h(App)
}).$mount('#app')
*/
new Vue({
el: '#app',
template: '<App/>',
render: h => h(App),
components: { App }
}).$mount('#app');
Here is my App.vue;
<template>
<div id="app">
<ShowList list_id="default"/>
</div>
</template>
<script>
import ShowList from './components/ShowList.vue'
export default {
name: 'app',
components: {
ShowList
}
}
</script>
<script lang="scss">
#import "sass/common.scss";
// Static footer
.footer {
position: absolute;
bottom: 0;
width: 100%;
height: $footer_height; /* Set the fixed height of the footer here */
margin-bottom:0;
}
.navbar {
margin-bottom:0;
}
</script>
And here is one of the components;
<template>
<div class="row">
<div class="col-md-4 order-md-2 mb-4">
<h4 class="d-flex justify-content-between align-items-center mb-3">
<span class="text-muted">Din lista</span>
</h4>
<ul class="list-group mb-3">
<li v-for="beer in beers" v-bind:key="beer.name" class="list-group-item d-flex justify-content-between lh-condensed">
<div>
<h6 class="my-0">{{ beer.name }}</h6>
<small class="text-muted">{{ beer.description }}</small>
</div>
<span class="text-muted">{{ beer.price }}</span>
</li>
</ul>
</div>
</div>
</template>
<script>
var beer_items = [
{
name: 'Hoegarden',
price: '19:90 kr',
description: 'Tyskt öl'
},
{
name: 'Leffe',
price: '16:90 kr',
description: 'Belgiskt öl'
},
{
name: 'Fat Tire',
price: '17:50 kr',
description: 'Amerikanskt öl'
}
];
export default {
name: 'ShowList',
props: {
list_id: String
},
data () {
return {
beers: beer_items
};
}
}
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<style lang="scss" scoped>
.flip-list-move {
transition: transform 0.5s;
}
.no-move {
transition: transform 0s;
}
.ghost {
opacity: .5;
background: #C8EBFB;
}
.list-group {
min-height: 20px;
}
.list-group-item {
cursor: move;
}
.list-group-item i{
cursor: pointer;
}
</style>
I tried using hyphenated component names like show-list too but it did not help.
I feel like I've missed something simple and essential but so far nobody on Vue Gitter has been able to figure out what.
could it be because you've got <script lang="scss"> instead of <style lang="scss"> tags in your App.vue?
Related
There is a product page where product list component and action buttons are there. This is the parent component. That product list component consists of list table and edit/add modal. Now, problem is Add action event is in parent component. But, add modal related data is available in child component.
So, how can i open that model based on click event from parent? Here i am doing like this approach.
Parent Component(Product Component snippets )
<template>
..... other code ....
<div class="action-buttons">
<vu-button class="add-action" #click="onAddAction">
<svg-icon
fill="#0071E3"
name="add"
height="20"
width="28"
/>
</vu-button>
</div>
<ChildComponent :open-add-modal="isAddModal" />
</template>
Methods in Parent component
onAddAction() {
this.editable = false;
this.isAddModal = true;
},
Now, in child component i passing boolean props openAddModal but i am checking condition into created hook to show Add modal.
Problem is in initial rendering or page load add modal is showing up not in click event. How can i solve this issue?
Child component(Created hook)
created() {
if(this.openAddModal) {
this.showModal = true;
this.formType = 'add';
this.editId = null;
}
},
I want to show add modal based on click event from parent not in initial page load.
You can try using a watcher instead of checking the value of open-add-modal in the created hook. This way, when the prop open-add-modal in the child component changes, you can check the new value there and emit the needed data to the parent to then open the modal.
Example:
Parent component code
<template>
<div>
<p>Parent component</p>
<button #click="changeOpenAddModal">Clic to get child data</button>
<button #click="resetParent">Reset data in parent</button>
<p>Data from child: {{ childData }}</p>
<br />
<br />
<Child
:openAddModal="this.openAddModal"
#child-component-data-emit="this.setChildData"
/>
</div>
</template>
<script>
import Child from "./Child";
export default {
name: "Parent",
components: { Child },
data() {
return {
childData: null,
openAddModal: false,
};
},
methods: {
changeOpenAddModal() {
this.openAddModal = !this.openAddModal;
console.log(
"changing openAddModal data. New value is ",
this.openAddModal
);
},
setChildData(data) {
console.log("setting child data", data);
this.childData = data;
},
resetParent() {
this.childData = null;
this.changeOpenAddModal();
},
},
};
</script>
Child component code
<template>
<div>
<p>Child component</p>
</div>
</template>
<script>
export default {
name: "Child",
props: {
openAddModal: {
type: Boolean,
default: false,
},
},
data() {
return {
childData: {
prop1: "lorem",
prop2: "ipsum",
prop3: "dolor",
},
};
},
watch: {
openAddModal: function (newValue, oldValue) {
console.log("child watcher with newValue", newValue);
if (newValue) {
this.$emit("child-component-data-emit", this.childData);
}
},
},
mounted: function () {
console.log("prop openAddModal value on mounted:", this.openAddModal);
},
};
</script>
I have built a few modals with Vue 2 and Vue CLI, and use an alternate approach for showing, hiding, and determined if add or edit mode. No watch or separate add/edit mode boolean is necessary.
The 'product' processing is somewhat contrived since no database or AJAX are used in this example, but you should get be able to evaluate the functionality.
Parent.vue
<template>
<div class="parent">
<h4>Parent of Form Modal</h4>
<div class="row">
<div class="col-md-6">
<button class="btn btn-secondary" #click="showAddModal">Show Add Modal</button>
<button class="btn btn-secondary btn-edit" #click="showEditModal">Show Edit Modal</button>
</div>
</div>
<form-modal v-if="displayModal"
:parentProduct="product"
#save-product-event="saveProduct"
#close-modal-event="hideModal"
/>
</div>
</template>
<script>
import FormModal from './FormModal.vue'
export default {
components: {
FormModal
},
data() {
return {
product: {
id: 0,
name: '',
description: ''
},
displayModal: false
}
},
methods: {
showAddModal() {
this.resetProduct();
this.displayModal = true;
},
showEditModal() {
this.product.id = 1;
this.product.name = 'productEdit';
this.product.description = 'productEditDescription';
this.displayModal = true;
},
hideModal() {
this.displayModal = false;
},
saveProduct(modalProduct) {
this.product = modalProduct;
this.hideModal();
console.log(this.product);
},
resetProduct() {
this.product.id = 0;
this.product.name = '';
this.product.description = '';
}
}
}
</script>
<style scoped>
.btn-edit {
margin-left: 0.5rem;
}
</style>
FormModal.vue
<template>
<!-- The Modal -->
<div id="form-modal" class="modal-dialog-container">
<div class="modal-dialog-content">
<div class="modal-dialog-header">
<h4>{{ modalTitle }}</h4>
</div>
<div class="modal-dialog-body">
<form #submit.prevent="saveProduct">
<div class="form-group">
<label for="product-name">Name</label>
<input type="text" class="form-control" id="product-name" v-model="product.name">
</div>
<div class="form-group">
<label for="product-description">Description</label>
<input type="text" class="form-control" id="product-description" v-model="product.description">
</div>
<button type="submit" class="btn btn-primary">Submit</button>
<button type="button" class="btn btn-secondary btn-close" #click="closeModal">Cancel</button>
</form>
</div>
</div>
</div>
</template>
<script>
export default {
props: {
parentProduct: {
type: Object,
required: true
}
},
data() {
return {
product: this.parentProduct
}
},
computed: {
modalTitle() {
return this.product.id === 0 ? 'Add Product' : 'Edit Product';
}
},
methods: {
closeModal() {
this.$emit('close-modal-event');
},
saveProduct() {
// Add product
if (this.product.id === 0) {
this.product.id = 2;
}
this.$emit('save-product-event', this.product);
}
}
}
</script>
<style scoped>
.modal-dialog-container {
/* display: none; Hidden by default */
position: fixed;
/* Stay in place */
z-index: 1;
/* Sit on top */
left: 0;
top: 0;
width: 100%;
/* Full width */
height: 100%;
/* Full height */
overflow: auto;
/* Enable scroll if needed */
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, 0.4);
/* Black w/ opacity */
}
.modal-dialog-content {
background-color: #fefefe;
margin: 10% auto;
padding: 20px;
border: 1px solid #888;
border-radius: 0.3rem;
width: 30%;
}
.btn-close {
margin-left: 0.5rem;
}
</style>
Say I have a data object and in that object, there is a property called anime1. How would I access have anime1 printed on the console as the user types their input in. This entire thing is in a component. I tried creating a function called log that when pressed would console.log the value of anime1 but that didn't work. This is what I've tried out so far.
<template>
<section class="hero">
<div class="parent-1">
<h1 class="title is-1">Compare two animes! :)</h1>
</div>
<div class="columns">
<div class="column">
<b-field class="label" label="Anime 1">
<b-input value="Enter the first anime!" v-model="anime1"></b-input>
</b-field>
</div>
<div class="column">
<b-field class="label" label="Anime 2">
<b-input value="Enter the second anime!" v-model="anime2"></b-input>
</b-field>
</div>
</div>
<div class="button-spacing">
<b-button class="button" type="is-primary" click="#log"
>Compare!</b-button
>
</div>
</section>
</template>
<script>
import Vue from "vue";
import Buefy from "buefy";
import "buefy/dist/buefy.css";
Vue.use(Buefy);
export default {
data() {
return {
anime1: "",
anime2: "",
};
},
methods: {
log(anime1) {
console.log(anime1);
},
},
};
</script>
<style>
.title.is-1 {
text-align: center;
}
.parent-1 {
margin-top: 10%;
}
.columns {
margin-top: 2%;
margin-right: 10%;
margin-left: 10%;
}
.label {
text-align: center;
}
.button {
width: 10%;
}
.button-spacing {
text-align: center;
}
</style>
To call a function as you type on the input field, add #input to it.
<b-input value="Enter the first anime!" v-model="anime1" #input="log()"></b-input>
Then, you can easily access the anime1 inside your log() using this.anime1 so you don't need to put parameters on it.
data() {
return {
anime1: "",
anime2: "",
}
},
methods: {
log(){
console.log(this.anime1)
}
}
Alternatively, as #Sphinx said in the comment, you can watch the anime1, then call a function once it changes.
<b-input value="Enter the first anime!" v-model="anime1"></b-input>
data() {
return {
anime1: "",
anime2: "",
}
},
watch: {
anime1(newVal) {
this.log(newVal);
}
},
methods: {
log(string) {
console.log(string);
},
}
Also, the way you add your click handler on your button won't work. It should be v-on:click, or simply #click. More on event handlers here.
<b-button class="button" type="is-primary" #click="log('comparing...')">Compare!</b-button>
In a Vue instance, I have an Array with the name of "block" that holds 4 values. I render this Array to the DOM with a v-for:
<div class="block" #click="shuffleArray()">
<div v-for="(number, index) in block">
<span :class="[`index--${index}`]">{{ number }}</span>
</div>
</div>
this creates a div with 4 spans inside, each of which has a class of "index--0", "index--1", etc.
When clicked, the values of the Array change order:
shuffleArray: function() {
const shifted = this.block.shift();
this.block.push( shifted );
}
While the values do change, they don't move in the actual DOM, how can I achieve that when clicked, the spans actually change place in the DOM? Each span has a style applied to it so I would like a visual representation that the values do change order:
span.index--0 {
background-color: tomato;
}
span.index--1 {
background-color: khaki;
}
span.index--2 {
background-color:lavenderblush;
}
span.index--3 {
background-color: lightcoral;
}
Maybe there is a CSS only solution that does not require DOM manipulation.
I recommend to use list tranisition in order to make that fancy like :
Vue.config.devtools = false;
Vue.config.productionTip = false;
new Vue({
el: '#list-demo',
data: {
items: [1,2,3,4,5,6,7,8,9],
nextNum: 10
},
methods: {
randomIndex: function () {
return Math.floor(Math.random() * this.items.length)
},
add: function () {
this.items.splice(this.randomIndex(), 0, this.nextNum++)
},
remove: function () {
this.items.splice(this.randomIndex(), 1)
},
}
})
.list-item {
display: inline-block;
margin-right: 10px;
}
.list-enter-active, .list-leave-active {
transition: all 1s;
}
.list-enter, .list-leave-to /* .list-leave-active below version 2.1.8 */ {
opacity: 0;
transform: translateY(30px);
}
<link type="text/css" rel="stylesheet" href="//unpkg.com/bootstrap/dist/css/bootstrap.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.16/vue.js"></script>
<div id="list-demo">
<button v-on:click="add">Add</button>
<button v-on:click="remove">Remove</button>
<transition-group name="list" tag="p">
<span v-for="item in items" v-bind:key="item" class="list-item">
{{ item }}
</span>
</transition-group>
</div>
I created a custom component and registered it. But I get in the browser a warning, which I cannot process. In my opinion it is properly registered?
vue.js:435 [Vue warn]: Unknown custom element: - did you
register the component correctly? For recursive components, make sure
to provide the "name" option.
found in
--->
Main
import GISView from './components/GISView.vue';
import VueEvents from 'vue-events';
window.Vue = Vue;
Vue.use(VueEvents)
var App = window.App = new Vue({
el: '#app',
components: {
'gisview': GISView
},
data() {
return {
eventData: {
foo: 'baz'
}
}
},
methods: {
init: function() {
this.$events.$emit("test", this.eventData);
}
}
});
Component
<template>
<div ref="map" id="map" class="google-map" style="position: relative; overflow: hidden;">
<div style="height: 100%; width: 100%; position: absolute; top: 0px; left: 0px;">
<gisview></gisview>
</div>
</div>
</template>
<script>
import GoogleMaps from '../mixins/GoogleMaps.js';
export default {
mixins: [GoogleMaps],
mounted() {
console.log("Mounted");
this.$events.$on('test', eventData => console.log("Fired"));
},
data: function() {
return {
eventData: {
foo: 'baz'
}
}
},
methods: {
initMap: function() {
map = new google.maps.Map(this.$els.map, {
center: {lat: -34.397, lng: 150.644},
zoom: 8
});
}
}
}
</script>
Usage
<div class="wrapper wrapper-content animated fadeInRight">
<div id="app">
<div class="row">
<div class="col-md-7">
<div class="ibox">
<div class="ibox-title">GIS</div>
<div class="ibox-content">
<gisview></gisview>
</div>
</div>
</div>
</div>
</div>
</div>
I see 1-2 problems here.
You registered GISView to App.vue locally, meaning you can only use <gisview> inside App.vue's template. You can register GISView globally, like so, but i doubt you would want that.
Vue.component(GISView)
Is your second code example supposed to be GISView.vue? If it is, you're trying to use <gisview> within itself. Recursive components are a thing, but i don't think that's what you're going for here.
I have a simple project where i am trying to learn the concepts of vue.js using componenetes, comunication between components(i use eventBus) i am using the webkit-simple template to approach this, basicly what happens, is that i have 1 component that consists in a simple textarea where i add some text, that text should be displayed in my second component, that is a template where i render a array with all my texts that i inserted, like a list of quotes.
component addQuote
<template>
<div class="row">
<div class="col-md-12">
<div class="form-group">
<div class="col-md-offset-3 col-md-6">
<label>Quote:</label>
<textarea v-model="quote.text" class="form-control" rows="5"></textarea>
<div class="text-center">
<button #click="addQuote" class="btn btn-primary center">Add Quote</button>
</div>
</div>
</div>
</div>
</div>
</template>
<script>
import { quoteBus } from '../main.js';
export default {
methods: {
addQuote() {
if (this.counter < 10) {
this.counter++;
this.quote.key =+ new Date();
quoteBus.$emit('saveQuote', this.quote);
}
}
},
data: function () {
return {
quote: {},
counter: 0
}
},
created(){
quoteBus.$on('decreaseCounter', () => {
this.counter--
});
}
}
</script>
<style scoped>
.row {
margin-top: 40px;
}
.center {
margin: 0 auto;
}
div .text-center {
margin-top: 20px;
}
</style>
component quotes
<template>
<div class="row">
<div class="col-md-3" v-for="(quote,$index) in quotes" #click="deleteQuote($index)" :key="quote.key">
<div class="spacing">
<h2>{{quote.text}}</h2>
</div>
</div>
</div>
</template>
<script>
import { quoteBus } from '../main.js';
export default {
data: function () {
return {
quotes: []
}
},
methods: {
deleteQuote(i){
this.quotes.splice(i,1);
quoteBus.$emit('decreaseCounter');
}
},
created() {
quoteBus.$on('saveQuote', quote => {
this.quotes.unshift(quote);
console.log(JSON.stringify(this.quotes));
});
}
}
</script>
<style scoped>
h2 {
font-family: 'Niconne', cursive;
}
div .col-md-3 {
border: 1px solid darkgray;
padding: 10px;
}
div .row {
margin-top: 40px;
}
.spacing {
margin: 10px;
padding: 10px;
}
</style>
the problem is, everytime i add a quote the text replace all the elements before.
Example:
9th entry: text: "abcdef", all the entries in the array has this value in text, all my divs has the value of abcdef, what is happening :S
const quoteBus = new Vue();
Vue.component('addQuote', {
template: '#addQuote-template',
methods: {
addQuote() {
if (this.counter < 10) {
this.counter++;
this.quote.key = +new Date();
quoteBus.$emit('saveQuote', Object.assign({}, this.quote));
}
}
},
data: function() {
return {
quote: {},
counter: 0
}
},
created() {
quoteBus.$on('decreaseCounter', () => {
this.counter--
});
}
});
Vue.component('quotes', {
template: '#quotes-template',
data: function() {
return {
quotes: []
}
},
methods: {
deleteQuote(i) {
this.quotes.splice(i, 1);
quoteBus.$emit('decreaseCounter');
}
},
created() {
quoteBus.$on('saveQuote', quote => {
this.quotes.unshift(quote);
console.log(JSON.stringify(this.quotes));
});
}
});
new Vue({
el: '#app'
});
<script src="//cdnjs.cloudflare.com/ajax/libs/vue/2.2.4/vue.min.js"></script>
<template id="addQuote-template">
<div class="row">
<div class="col-md-12">
<div class="form-group">
<div class="col-md-offset-3 col-md-6">
<label>Quote:</label>
<textarea v-model="quote.text" class="form-control" rows="5"></textarea>
<div class="text-center">
<button #click="addQuote" class="btn btn-primary center">Add Quote</button>
</div>
</div>
</div>
</div>
</div>
</template>
<template id="quotes-template">
<div class="row">
<div class="col-md-3" v-for="(quote,$index) in quotes" #click="deleteQuote($index)" :key="quote.key">
<div class="spacing">
<h2>{{quote.text}}</h2>
</div>
</div>
</div>
</template>
<div id="app">
<add-quote></add-quote>
<quotes></quotes>
</div>
The problem is that there is only one instance of this.quote in your addQuote component. You pass that particular object to quotes to be put into the array every time. When an object is put into an array, it is by-reference. If you put the same object into an array multiple times, you just have multiple references to the object's contents. Every element of your array is a reference to the same set of contents.
You need to send a copy of the object instead:
quoteBus.$emit('saveQuote', Object.assign({}, this.quote));