vue-router navigate to the same route and re-run mounted hook - vuejs2

How can I naviagte to the current route using router-link and re-run mounted hook?
HTML
<!-- Include the library in the page -->
<script src="https://unpkg.com/vue/dist/vue.min.js"></script>
<script src="https://unpkg.com/vue-router"></script>
<!-- App -->
<div id="app">
<nav>
<router-link :to="{ name: 'home' }" exact>Home</router-link>
<router-link :to="{ name: 'about' }" #click.native.prevent="router.push({ name: 'about' })">About</router-link>
</nav>
<router-view :key="$route.fullPath"></router-view>
</div>
JS
console.clear()
console.log('Yes! We are using Vue version', Vue.version)
Vue.use(VueRouter)
const Home = {
template: `<h1>Home</h1>`,
}
const About = {
template: `<h1>{{new Date()}}</h1>`,
mounted(){
console.log('mounted')
}
}
const routes = [
{ path: '/', name: 'home', component: Home },
{ path: '/about', name: 'about', component: About },
]
const router = new VueRouter({
routes,
})
// New VueJS instance
var app = new Vue({
// CSS selector of the root DOM element
el: '#app',
// Inject the router into the app
router,
})
In the above example, if I navigate to 'About' it shows the timestamp from new Date and logs 'mounted'. However, if I'm already on /about, clicking the about link does nothing. I want to re-run the whole component lifecycle when clicking 'About', even if I'm already hit it.

You'll need to change the key in the <router-view> element whenever the user clicks your about page, that will force the mounted hook:
<template>
<div id="app">
<router-link #click.native="updateViewKey" :to="{ name: 'about' }">About</router-link>
<router-view :key="viewKey"></router-view>
</div>
</template>
<script>
export default {
name: "App",
data() {
return {
viewKey: 1
};
},
methods: {
updateViewKey() {
this.viewKey+=1;
}
}
};
</script>

Try this :
router.push({
name: 'routeName',
params: {
id: 'new value'
}
})

Related

Vue: How to pass custom props and router props?

I'm trying to pass props from one page to another with a redirect. Here's the code for the redirect:
<router-link :to="{ name: 'shipment', params: { editedItems: getSelected() } }">
Edit Amount
</router-link>
And here's the original code for the route in router:
{
path: "/inventory/shipment",
name: "shipment",
props: { screen: "shipment" },
component: Inventory,
},
As can be seen, I want to also pass a set variable, being screen, all the time. The route, shipment, can be called with router-link or through other methods. I know by setting props: true on the route it allows me to get the props sent via the redirect, but it doesn't allow me to pass the screen prop if router-link isn't called. What I'm looking for is the best of both worlds, being able to send both props.
Side note: I know I can easily get the prop on the page by looking at the url, but learning how to do a method like this will be helpful in the future when I don't have an easy out.
With Vue router you can access both information (props and params), just use a different pattern to get it:
const MainView = {
template: `<div>MAIN VIEW: click on TO INVENTORY to see data passed</div>`
}
const Inventory = {
props: ['screen'],
computed: {
routeParams() {
return Object.entries(this.$route.params).map(e => {
return `${e[0]}: ${e[1]}`
}).join(', ')
}
},
template: `
<div>
INVENTORY<br />
prop: {{ screen }}<br />
editedItems: {{ $route.params.editedItems }}<br />
all params: {{ routeParams }}
</div>
`
}
const router = new VueRouter({
routes: [{
path: '/',
name: "main",
component: MainView
}, {
path: '/inventory/shipment',
name: "shipment",
props: {
screen: "shipment"
},
component: Inventory
}]
})
new Vue({
el: "#app",
router
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
<div id="app">
<router-link :to="{ name: 'shipment', params: { editedItems: 'someitem' } }">TO INVENTORY</router-link>
<router-link :to="{ name: 'main' }">TO MAIN</router-link>
<router-view></router-view>
</div>

Vue Props values not passed in simple test

I'm new using VUE and I was testing a simple vue-router but props are not working in this test.
Here the test on jsfiddle
<div id="app">Menu:
<router-link to="/">Home</router-link> |
<router-link to="/post">Post</router-link> |
<router-link to="/foo">Foo link comment</router-link>
<router-view></router-view>
</div>
const Home = { template: '<div class="page">Welcome to my Home <router-link :to="{name:\'foo\'}">this link</router-link></div>' }
const Foo = {
props:['comment', 'msg'],
template: '<div class="page">{{msg}} Here the comment:<hr><div v-html="comment"></div><hr>Go back to <router-link :to="{name:\'home\'}">home</router-link></div>' }
const router = new VueRouter({
mode: 'history',
routes: [
{ path: '/', name:'home',component: Home },
{ path: '/foo', name:'foo', component: Foo }],
})
new Vue({
router,
el: '#app',
data: {
msg: 'Hello World',
comment : '<div class="comment">This is a <strong>bold</strong> link</div>'
}
})
And how to pass the router link in prop HTML code?
You need to add props property in routes attribute
{ path: '/foo', name:'foo', component: Foo , props: true}
Also you need to pass prop value in router-link
<router-link :to="{ name: 'foo',
params: { comment: comment,msg: msg }}">Foo link comment</router-link>

Vue Router moves to route but loads wrong component

I have the following router config:
export default new Router({
mode: 'history',
routes: [
{
path: '/',
name: 'notselected',
component: PackageUnselected
},
{
path: '/package/:id',
children: [
{ path: 'meta', name: 'packageMeta', component: ViewPackageMeta },
{ path: 'readme', name: 'packageReadme', component: PackageReadme },
{ path: 'docs', name: 'packageDocs', component: PackageDocs },
{
path: 'playground',
name: 'packagePlayground',
component: PackagePlayground
}
]
},
{
path: '/about',
name: 'about',
component: About
},
{
path: '*',
redirect: '/'
}
]
});
And when I'm at the root route it correctly identifies the route name as notselected. When I route to any of the "/package/[id]" routes though it continues to load the PackageUnselected component instead of the appropriate route (aka, ViewPackageMeta, PackageDocs, etc.).
Now at the point in the DOM where I want the route to insert the route's component I have the following template:
<v-tab-item v-for="item in tabs" :id="'tab-item-' + item" :key="item" exact>
item: {{item}}
<router-view :selectedPackage="selected"></router-view>
</v-tab-item>
And because I have installed vuex-router-sync it's easy to see the route state at any given time. So when clicking on the route that should load PackageDocs:
But the component view window of vue-devtools looks like this:
the highlighted area shows that NO component has been loaded into the tabs. I then tried adding a component to the definition of the parent route /package/:id:
{
path: '/package/:id',
component: Packages,
children: [
{ path: 'meta', name: 'packageMeta', component: ViewPackageMeta },
{ path: 'readme', name: 'packageReadme', component: PackageReadme },
{ path: 'docs', name: 'packageDocs', component: PackageDocs },
{
path: 'playground',
name: 'packagePlayground',
component: PackagePlayground
}
]
},
I then had to create the world simplest component for Packages:
<template>
<view-router-view></view-router-view>
</template>
This results in the following:
Hmmm. Can't figure out what to do next. Anyone have any pointers?
When I route to any of the "/package/[id]" routes though it continues
to load the PackageUnselected component instead of the appropriate
route (aka, ViewPackageMeta, PackageDocs, etc.).
That is the correct behavior of the vue-router.
Children can only be loaded when URL paths are:
/package/[id]/meta
/package/[id]/readme
/package/[id]/playground
/package/[id]/docs
Parent path may not have component defined if you have configured redirect option and your user, who opens /package/[id] will be redirected to your default path (could be anything).
Lets move to the next part of your question...
<v-tab-item v-for="item in tabs" :id="'tab-item-' + item" :key="item" exact>
item: {{item}}
<router-view :selectedPackage="selected"></router-view>
</v-tab-item>
You don't need to create here 4 different <router-view> tags, you just need one where all your children components will display html code.
<v-tab-item v-for="item in tabs" :id="'tab-item-' + item" :key="item" exact></v-tab-item>
<router-view></router-view>
Now you will have only one router-view and it's the default one. When user clicks on any of your tabs you just need to this.$router.push a new path on #click-event in Packages component. That's it.
I have created a simple example (codepen) to demonstrate how this task can be solved:
Vue.use(VueRouter);
// Components
let MetaPackages = {
mounted() { console.log('Mounted MetaPackages...'); },
template: `<div>MetaPackages...</div>`,
};
let DocsPackages = {
mounted() { console.log('Mounted DocsPackages...'); },
template: `<div>DocsPackages...</div>`,
};
let ReadmePackages = {
mounted() { console.log('Mounted ReadmePackages...'); },
template: `<div>ReadmePackages...</div>`,
};
let Packages = {
mounted() { console.log('Mounted Packages... ' + this.$route.path); },
template: '<div>Packages (parent) screen...<br/><router-view></router-view></div>',
};
// Router
const router = new VueRouter({
mode: 'hash',
routes: [
{
path: "/packages/:id",
component: Packages,
children: [
{path:"meta", component: MetaPackages},
{path:"docs", component: DocsPackages},
{path:"readme", component: ReadmePackages}
]
}
]
});
// Vue instance
const vm = new Vue({
el: '#app',
router,
components: {Packages, MetaPackages, DocsPackages, ReadmePackages}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue-router/3.0.2/vue-router.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<router-link to="/packages/100/meta">Meta</router-link>
<router-link to="/packages/100/docs">Docs</router-link>
<router-link to="/packages/100/readme">Readme</router-link>
<hr/>
<router-view></router-view>
</div>

Two Path with same route and same component - Vue js

I have two path with same component like this:
/:loc("-host") - should match /usa-host
/:loc/:sublocation("-host") - should match /usa/washington-host
how to achieve this using single named route in vue.js
You can use alias of path
const router = new VueRouter({
routes: [
{ path: '/a', component: A, alias: '/b' }
]
})
Check in doc
const Home = { template: '<div>Home</div>' }
const Project = {
template: '<div>Project {{id}}</div>',
mounted(){
console.log(this.$route);
},
data: function () {
return {
id:this.$route.params.id||'',
}
}
}
const router = new VueRouter({
mode: 'history',
routes: [
{
path: '/',
component: Home
},
{
path: '/projects/:id?',
component: Project,
alias: '/project/:id'
}
]
})
new Vue({
router,
el: '#app'
})
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
<div id="app">
<router-link to="/">Home</router-link> |
<router-link to="/projects">projects</router-link> |
<router-link to="/project/1">project/1</router-link>
<router-view></router-view>
</div>
Also check fiddle : https://jsfiddle.net/nikleshraut/9sgk6yg4/1/
Note : Opening same component is not working by default, you need to use other trick. For just testing above fiddle, go home->/projects and home->/project/1 will work but /projects->/project/1 or /project/1->/projects will not work. To make it work do something like this : https://jsfiddle.net/nikleshraut/9sgk6yg4/
This is my solution.
Router:
Use ? to separate param from literal in route.
const router = new VueRouter({
routes: [
{ path: '/', component: Home },
{ path: '/:loc/:subloc?-host', component: Location },
{ path: '/:loc?-host', component: Location },
]
})
Component:
Set local variables from $route.params.
const Location = {
template: '<div>Location {{loc}} - {{ subloc }}</div>',
data: function () {
return {
loc: this.$route.params.loc,
subloc: this.$route.params.subloc,
}
},
}
Template:
Use :key="$route.fullPath" to ensure component re-creates each navigation.
<div id="app">
<router-link to="/">Home</router-link> |
<router-link to="/usa-host" >loc1</router-link> |
<router-link to="/usa/washington-host" >loc2</router-link>
<router-view :key="$route.fullPath"></router-view>
</div>
Fiddle here

What's the condition that the hook: "beforeRouteEnter" in vue component will be triggered?

i am new to Vue.js, and encountered a few issues when learn navigation guard hooks.
i set the component hook:'beforeRouteEnter' for Foo component and Home component. when browser go to '/', it will redirect to '/home', and Foo is Home's default child component, so it will be rendered, and the foo component hook is triggered. i am aware of all above, and what i wanna know are:
when route change from '/home' to '/home/foo', the foo component is
re-used indeed, why the hook for Foo component will be triggered?
when route change from '/home/foo' to '/home', the hook for Foo
component will be triggered, but home component is re-used too, why
the hook for Home component is not triggered?
please refer to fiddle demo.
<!-- html-->
<script src="https://unpkg.com/vue"></script>
<script src="https://unpkg.com/vue-router"></script>
<div id="demo">
<router-link to="/home">Home</router-link>
<router-view></router-view>
</div>
//JS
const Home = {
template: `
<div>
<p>I am home component</p>
<router-link to="/home/foo">Foo</router-link>
<router-view></router-view>
</div>
`,
beforeRouteEnter(to, from, next) {
alert('enter home component from ' + from.path + ' to ' + to.path)
next()
}
}
const Foo = {
template: `
<div>
<p>I am foo component</p>
</div>
`,
beforeRouteEnter(to, from, next) {
alert('enter foo component from ' + from.path + ' to ' + to.path)
next()
}
}
const routes = [
{
path: '/',
redirect: '/home'
},
{
path: '/home',
component: Home,
children: [
{
path: 'foo',
component: Foo
},
{
path: '',
component: Foo
}
]
}
]
const router = new VueRouter({
routes
})
new Vue({
el: "#demo",
router
})