Hello I have a problem showing/loading page. Some routes are working, and those routes that work are calling API for data, the ones that not work are not calling API for data.
So I am calling API for data(I don't have to, and I don't want to), and then the page loads.
I am watching the selected language computed:{lang(){...}} because in some situations I need to get translated data from API.
Here is the code with added API call.
asyncDataStatus.js
export default{
data(){
return{
asyncDataStatus_ready: false
}
},
methods: {
asyncDataStatus_fetched(){
this.asyncDataStatus_ready = true
this.$emit('ready')
}
},
}
App.vue
<template>
<router-view v-show="showPage" #ready="onPageReady" />
</template>
<script>
export default {
import asyncDataStatus from '#/mixins/asyncDataStatus'
export default {
methods:{
onPageReady(){
this.showPage = true
NProgress.done()
}
},
mixins: [asyncDataStatus],
created(){
NProgress.configure({
speed: 200,
spinner: false
})
this.$router.beforeEach(() => {
this.showPage = false
NProgress.start()
})
}
}
</script>
Contact.vue
<template>
<router-view v-show="showPage" #ready="onPageReady" />
</template>
<script>
import store from '../store';
import asyncDataStatus from '#/mixins/asyncDataStatus'
export default {
mixins: [asyncDataStatus],
computed: {
lang() {
return this.$i18n.locale
},
watch: {
async lang(newLang, oldLang) {
if(newLang !== oldLang) {
// If I remove this line `store.dispatch` line (which is not needed in this file), then `this.asyncDataStatus_fetched()` won't happen
await store.dispatch('impressionModule/getImpressions')
this.asyncDataStatus_fetched()
}
},
created() {
this.asyncDataStatus_fetched()
}
}
}
</script>
Related
I want to fetch data everytime when props changes in component and display it without reloading page.
pages/invoice/index.vue:
<template>
<div>
<b-table-column
field="InvoiceNo"
label="Invoice No"
sortable
v-slot="props"
>
<a #click="selectInvoice(props.row.id)">
{{ props.row.invoiceNumber }}
</a>
</b-table-column>
<Invoice :invoiceId="selectedInvoice" />
</div>
</template>
<script>
import axios from "axios";
import Invoice from "../../../components/Invoice.vue";
export default {
components: {
Invoice,
},
data() {
return {
selectedInvoice: "",
}
},
methods: {
selectInvoice(invoiceId) {
this.selectedInvoice = invoiceId;
},
}
}
</script>
components/Invoice.vue:
<script>
import axios from "axios";
export default {
props: ["invoiceId"],
data() {
return {
invoiceData: "",
};
},
watch: {
invoiceId: function (newVal, oldVal) {
this.fetchData(newVal)
},
deep: true,
immediate: true,
},
methods: {
async fetchData(invoiceId) {
let { data: invoiceDetails } = await axios.get(
`${process.env.backendapi}/invoice/byid?invoiceId=${invoiceId}`
);
return {
invoiceData: invoiceDetails,
};
},
},
};
</script>
When I select/change invoice, I can see the backend api getting called everytime with selected invoice, but invoiceData is always blank. The returned result is not getting updated in invoiceData.
I think you want the following in the fetchData method
this.invoiceData = invoiceDetails
Instead of
return {}
Only the already existing data and fetch vue/nuxt functions need to return an object
The problem I need to solve: I am writing a little vue-app based on VueJS3.
I got a lot of different sidebars and I need to prevent the case that more than one sidebar is open at the very same time.
To archive this I am following this article.
Now I got a problem:
Vue received a Component which was made a reactive object. This can lead to unnecessary performance overhead, and should be avoided by marking the component with markRaw or using shallowRef instead of ref. (6)
This is my code:
SlideOvers.vue
<template>
<component :is="component" :component="component" v-if="open"/>
</template>
<script>
export default {
name: 'SlideOvers',
computed: {
component() {
return this.$store.state.slideovers.sidebarComponent
},
open () {
return this.$store.state.slideovers.sidebarOpen
},
},
}
</script>
UserSlideOver.vue
<template>
<div>test</div>
</template>
<script>
export default {
name: 'UserSlideOver',
components: {},
computed: {
open () {
return this.$store.state.slideovers.sidebarOpen
},
component () {
return this.$store.state.slideovers.sidebarComponent
}
},
}
</script>
slideovers.js (vuex-store)
import * as types from '../mutation-types'
const state = {
sidebarOpen: false,
sidebarComponent: null
}
const getters = {
sidebarOpen: state => state.sidebarOpen,
sidebarComponent: state => state.sidebarComponent
}
const actions = {
toggleSidebar ({commit, state}, component) {
commit (types.TOGGLE_SIDEBAR)
commit (types.SET_SIDEBAR_COMPONENT, component)
},
closeSidebar ({commit, state}, component) {
commit (types.CLOSE_SIDEBAR)
commit (types.SET_SIDEBAR_COMPONENT, component)
}
}
const mutations = {
[types.TOGGLE_SIDEBAR] (state) {
state.sidebarOpen = !state.sidebarOpen
},
[types.CLOSE_SIDEBAR] (state) {
state.sidebarOpen = false
},
[types.SET_SIDEBAR_COMPONENT] (state, component) {
state.sidebarComponent = component
}
}
export default {
state,
getters,
actions,
mutations
}
App.vue
<template>
<SlideOvers/>
<router-view ref="routerView"/>
</template>
<script>
import SlideOvers from "./SlideOvers";
export default {
name: 'app',
components: {SlideOvers},
};
</script>
And this is how I try to toggle one slideover:
<template>
<router-link
v-slot="{ href, navigate }"
to="/">
<a :href="href"
#click="$store.dispatch ('toggleSidebar', userslideover)">
Test
</a>
</router-link>
</template>
<script>
import {defineAsyncComponent} from "vue";
export default {
components: {
},
data() {
return {
userslideover: defineAsyncComponent(() =>
import('../../UserSlideOver')
),
};
},
};
</script>
Following the recommendation of the warning, use markRaw on the value of usersslideover to resolve the warning:
export default {
data() {
return {
userslideover: markRaw(defineAsyncComponent(() => import('../../UserSlideOver.vue') )),
}
}
}
demo
You can use Object.freeze to get rid of the warning.
If you only use shallowRef f.e., the component will only be mounted once and is not usable in a dynamic component.
<script setup>
import InputField from "src/core/components/InputField.vue";
const inputField = Object.freeze(InputField);
const reactiveComponent = ref(undefined);
setTimeout(function() => {
reactiveComponent.value = inputField;
}, 5000);
setTimeout(function() => {
reactiveComponent.value = undefined;
}, 5000);
setTimeout(function() => {
reactiveComponent.value = inputField;
}, 5000);
</script>
<template>
<component :is="reactiveComponent" />
</template>
I have a component which is hid based on the route which is active, it kicks off a function which is stored using vuex store.
It works as intended, the sidenav is hidden on login, logout, and register.
However, I noticed when I am on an authenticated page such as admin panel, or dashboard, etc, the component displays correctly, but when/if someone reloads the webpage, the component disappears, only to be displayed when clicking a link to another page.
App.Vue
<template>
<div id="app">
<navbar />
<sidenav v-show="sidenav_toggle" />
<div class="row router-container">
<div class="col router-row">
<router-view/>
</div>
</div>
</div>
</template>
<script>
import Vue from 'vue'
import Vuex from 'vuex'
import router from '#/router'
import axios from 'axios'
import AxiosStorage from 'axios-storage'
let sessionCache = AxiosStorage.getCache('localStorage');
import materializecss from '../static/css/main.css'
import materializejs from '../static/materialize-css/dist/js/materialize.js'
import navbar from '#/components/navbar'
import sidenav from '#/components/sidenav'
Vue.use(Vuex)
const state = {
sidenav:{
show: false
}
}
const mutations = {
show_sidenav(state){
state.sidenav.show = true
},
hide_sidenav(state){
state.sidenav.show = false
}
}
const store = new Vuex.Store({
state,
mutations
})
export default {
router,
name: 'App',
watch:{
$route: function(){
if(this.$route.path === '/login' || this.$route.path === '/logout' || this.$route.path === '/register'){
store.commit('hide_sidenav')
console.log('not authd')
}else{
store.commit('show_sidenav')
console.log('authd')
}
},
deep: true,
immediate: true
},
computed: {
sidenav_toggle(){
return store.state.sidenav.show
}
},
data: function(){
return{
}
},
components: {
navbar,
sidenav
},
methods: {
},
created: function(){
}
}
</script>
Your watcher is not called if you land directly on the admin page because the $route property never changes (and watchers only watch for changes).
What you could do is move your watcher function in a method, and call this method in the created hook and in your watcher.
An even better way to do this would be to use vue-router navigation-guards
Example:
export default {
// ...
methods: {
adaptSidebar(path) {
if (['/login', '/logout', '/register'].includes(path)) {
store.commit('hide_sidenav')
} else {
store.commit('show_sidenav')
}
},
},
beforeRouterEnter(from, to, next) {
// As stated in the doc, we do not have access to this from here
next(vm => {
vm.adaptSidebar(to.path)
})
},
beforeRouteChange(from, to, next) {
this.adaptSidebar(to.path)
},
}
I'm using chartkick in my Vue project. Right now, the data is loading from Firebase after the chart has rendered, so the chart is blank. When I change the code in my editor, the chart renders as expected, since it's already been retrieved from Firebase. Is there a way to make chartkick wait for the data to load before trying to render the chart? Thanks!
Line-Chart Component:
<template>
<div v-if="loaded">
<line-chart :data="chartData"></line-chart>
</div>
</template>
<script>
export default {
name: 'VueChartKick',
props: ['avgStats'],
data () {
return {
loaded: false,
chartData: this.avgStats
}
},
mounted () {
this.loaded = true
}
}
</script>
Parent:
<template>
...
<stats-chart v-if="avgStatsLoaded" v-bind:avgStats="avgStats" class="stat-chart"></stats-chart>
<div v-if="!avgStatsLoaded">Loading...</div>
...
</template>
<script>
import StatsChart from './StatsChart'
export default {
name: 'BBall',
props: ['stats'],
components: {
statsChart: StatsChart
},
data () {
return {
avgStatsLoaded: false,
avgStats: []
}
},
computed: {
sortedStats: function () {
return this.stats.slice().sort((a, b) => new Date(b.date) - new Date(a.date))
}
},
methods: {
getAvgStats: function () {
this.avgStats = this.stats.map(stat => [stat.date, stat.of10])
this.avgStatsLoaded = true
}
},
mounted () {
this.getAvgStats()
}
}
modify your code of StatsChart component:
you may use props directly
<template>
<div v-if="loaded">
<line-chart :data="avgStats"></line-chart>
</div>
</template>
export default {
name: 'VueChartKick',
props: ['avgStats'],
data () {
return {
loaded: false,
}
},
mounted () {
this.loaded = true
}
}
Basically I want to a loadingbar component globally (included in app template)
Here is my loadingbar component
<template>
<div class="loadingbar" v-if="isLoading">
Loading ...
</div>
</template>
<script>
export default {
name: 'loadingbar',
props: ['isLoading'],
data () {
return {
}
}
}
</script>
<style scoped>
</style>
and in main.js, I have included this component as
import LoadingBar from './components/LoadingBar.vue';
new Vue({
router,
data () {
return {
isLoading: true
};
},
methods: {
},
created: function () {
},
components: {
LoadingBar
},
template: `
<div id="app">
<LoadingBar :isLoading="isLoading"/>
<router-view></router-view>
</div>
`
}).$mount('#app');
My aim is to show loading component based upon the value of variable isLoading. The above code working fine. But I want to use set isLoading variable from other component (so that to decide whether to show loading component). Eg. In post components
<template>
<div class="post container">
</div>
</template>
<script>
export default {
name: 'post',
data () {
return {
posts: []
}
},
methods: {
fetchPosts: function() {
// to show loading bar
this.isLoading = true;
this.$http.get(APIURL+'listpost')
.then(function(response) {
// to hide loading bar
this.isLoading = false;
console.log("content loaded");
});
}
},
created: function() {
this.fetchPosts();
}
}
</script>
<style scoped>
</style>
Of coarse we can't access isLoading directly from main.js so i decided to use Mixin so i put following code in main.js
Vue.mixin({
data: function () {
return {
isLoading: false
};
}
});
This however allow me to access isLoading from any other component but I can't modify this variable. Can any help me to achieve this?
Note: I know i can achieve this by including loadingbar in individual component (I tried that and it was working fine, But i do not want to do that as loadingbar is needed in every component so i was including in main template/component)
You could use Vuex like so:
// main.js
import Vuex from 'vuex'
let store = new Vuex.Store({
state: {
isLoading: false,
},
mutations: {
SET_IS_LOADING(state, value) {
state.isLoading = value;
}
},
getters: {
isLoading(state) {
return state.isLoading;
}
}
})
import LoadingBar from './components/LoadingBar.vue';
new Vue({
router,
store, // notice you need to add the `store` var here
components: {
LoadingBar
},
template: `
<div id="app">
<LoadingBar :isLoading="$store.getters.isLoading"/>
<router-view></router-view>
</div>
`
}).$mount('#app');
// script of any child component
methods: {
fetchPosts: function() {
// to show loading bar
this.$store.commit('SET_IS_LOADING', true);
this.$http.get(APIURL+'listpost')
.then(function(response) {
// to hide loading bar
this.$store.commit('SET_IS_LOADING', false);
console.log("content loaded");
});
}
},