How to call method from another component VUE - vue.js

I have one component
<template>
<div class="section">
<a v-if='type == "events"' class="button is-primary" #click="showForm()">
<i class="fa fa-calendar"></i> &nbsp<span class="card-stats-key"> Add Event</span>
</a>
<a v-if='type == "places"' class="button is-primary" #click="showForm()">
<i class="fa fa-location-arrow"></i> &nbsp<span class="card-stats-key"> Add Place</span>
</a>
<table class="table" v-if="!add">
<thead>
<tr>
<th>
<abbr title="Position"># Client Number</abbr>
</th>
<th>Title</th>
<th>
<abbr title="Played">Status</abbr>
</th>
<th>
<abbr title="Played">View</abbr>
</th>
</tr>
</thead>
<tbody>
<tr v-for="event in events">
<th>{{event.client_number}}</th>
<td v-if='type == "events" '>{{event.title}}</td>
<td v-if='type == "places" '>{{event.name}}</td>
<td>
<p class="is-danger">Waiting</p>
</td>
<td> View </td>
</tr>
</tbody>
</table>
<add v-if="add" v-on:hideAdd="hideFrom()"></add>
</div>
</template>
<script>
import Add from '../forms/AddPlace.vue'
export default {
name: 'Tabbox',
data() {
return {
events: [],
add: ''
}
},
props: ['type'],
created() {
let jwt = localStorage.getItem('id_token')
var ref = wilddog.sync().ref('users').child(jwt).child(this.type);
ref.once("value")
.then((snapshot) => {
this.events = snapshot.val();
}).catch((err) => {
console.error(err);
})
},
methods: {
showForm(add) {
if (this.add == true)
this.add = false;
else {
this.add = true;
}
},
hideFrom() {
this.add = false
console.log('This add is false');
}
},
components: {
Add
}
}
</script>
and another component
<template>
<div class="field is-horizontal">
<div class="field-label">
<!-- Left empty for spacing -->
</div>
<div class="field-body">
<div class="field">
<div class="control">
<button class="button is-primary" v-bind:class="{ 'is-loading': loading } " #click="addPlace()">
Add place
</button>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
data() {
return {
add: false
}
},
methods: {
addPlace() {
this.$emit('hideAdd', this.add)
},
},
}
</script>
How i can calling method from showForm() from first first component in second one! I'm trying to that with $emit function, it doesn't work. And trying with $broadcast, same. How i can use event there?

Add a ref attribute to the child component in the parent component's template like this:
<add v-if="add" v-on:hideAdd="hideFrom()" ref="add-component"></add>
Now your parent component will have access to the child component's VueComponent instance and methods, which you can access like this:
methods: {
showForm() {
this.$refs['add-component'].addPlace();
}
}
Here's documentation on refs.

Related

Props passed to child component do not render well

I am attempting to pass user id's fetched from an API trough props from parent (App) to child (Modal). The problem is that when I pass the props down to the modal they don't render as they should in the div with the modal-body class, in fact all of them display an id of 1.
App.vue:
<template>
<div class="container mt-3">
<table class="table">
<thead>
<tr>
<th scope="col">ID</th>
<th scope="col">Name</th>
<th scope="col">Username</th>
</tr>
</thead>
<tbody v-for="user in users" :key="user.id">
<tr>
<th scope="row">{{ user.id }}</th>
<td>{{ user.name }}</td>
<td>{{ user.username }}</td>
<td>
<Modal :id="user.id" />
</td>
</tr>
</tbody>
</table>
</div>
<pre>{{ user }}</pre>
</template>
<script>
import axios from "axios";
import Modal from "#/components/Modal.vue";
export default {
name: "App",
components: {
Modal,
},
data() {
return {
users: null,
};
},
methods: {
async load_users() {
try {
const { data } = await axios.get(
"https://jsonplaceholder.typicode.com/users"
);
this.users = data;
} catch (error) {
console.log("error");
}
},
},
mounted() {
this.load_users();
},
};
</script>
Modal.vue:
<template>
<!-- Button trigger modal -->
<button
type="button"
class="btn btn-danger"
data-bs-toggle="modal"
data-bs-target="#exampleModal"
>
Delete
</button>
<!-- Modal -->
<div
class="modal fade"
id="exampleModal"
tabindex="-1"
aria-labelledby="exampleModalLabel"
aria-hidden="true"
>
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button
type="button"
class="btn-close"
data-bs-dismiss="modal"
aria-label="Close"
></button>
</div>
<div class="modal-body">
Are you sure you want to delete user: {{ id }}
</div>
<div class="modal-footer">
<button
type="button"
class="btn btn-secondary"
data-bs-dismiss="modal"
>
Close
</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
name: "Modal",
props: ["id"],
};
</script>
The page preview is the following:
It does not matter on which Delete button I click the id is always 1.
But when I inspect the props in the Vue Devtools they are different, for the second for example it appears 2 as it should:
Any help is appreciated.
Thank you.
You are rendering 10 modals each with the same id - exampleModal, so it's always the first one which is opened. This is why you are experiencing the behaviour you describe.
However - the real problem is with your structure.
Why are you rendering 10 modals? Why not render one and pass in the respective props?
Something like this:
<template>
<Modal v-if="modal.isActive" :id="modal.userId" />
<tbody v-for="user in users" :key="user.id">
<tr>
<th scope="row">{{ user.id }}</th>
<td>{{ user.name }}</td>
<td>{{ user.username }}</td>
<td>
<button
type="button"
class="btn btn-danger"
#click="onClick(user.id)"
>
Delete
</button>
</td>
</tr>
</tbody>
</template>
<script>
import Modal from '#/components/Modal.vue'
export default {
name: 'App',
components: {
Modal,
},
data() {
return {
users: null,
modal: {
isActive: false,
userId: null,
},
}
},
methods: {
onClick(userId) {
Object.assign(this.modal, { isActive: true, userId })
},
},
}
</script>

V-If and V-else questions (Vue and Firebase Real-time Database)

I'm working on a web application using Vue and Firebase-Real-time Database. I managed to include all the CRUD functions following several tutorials in Youtube. The problem right now is that i am unable to show or hide a certain element when changing the {Edit:} condition of the user via v-if/v-else. Below will be the code;
<template>
<div class="row">
<div class="container">
<table class="table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Email</th>
<th>ID</th>
<th>Actions</th>
</tr>
</thead>
<tbody v-for="userProfile in Users" :key="userProfile.key">
<tr v-if="userProfile.edit">
<td>{{userProfile.username}}</td>
<td>{{userProfile.email}}</td>
<td>{{userProfile.userId}}</td>
<td>
<button #click.prevent="updateUser(userProfile.key)" class="btn btn-primary"> Update </button>
<button #click.prevent="removeUser(userProfile.key)" class="btn btn-danger">Delete</button>
</td>
</tr>
<tr v-else>
<td> <input type="text" v-model="userProfile.username"> </td>
<td> <input type="text" v-model="userProfile.email"> </td>
<td> <input type="text" v-model="userProfile.userId"> </td>
<td>
<button #click.prevent="saveUser(userProfile)" class="btn btn-primary"> Save </button>
<button #click.prevent="cancel(userProfile.key)" class="btn btn-danger"> Cancel </button>
</td>
</tr>
</tbody>
</table>
</div>
</div>
As for my script
import { usersRef } from '../main.js';
export default {
data() {
return {
Users: [],
}
},
created() {
usersRef.once('value', (Users) => {
Users.forEach((doc) => {
this.Users.push({
key: doc.key,
email: doc.child('email').val(),
username: doc.child('username').val(),
userId: doc.child('userId').val(),
})
})
})
},
methods:{
removeUser: function(key) {
usersRef.child(key).remove()
.then(function() {
console.log("deleted Sucessfully");
alert("Sucessfully Deleted");
}).catch(function(error) {
console.log(error);
});
},
updateUser: function(key) {
usersRef.child(key).update({edit:false})
.then(function() {
console.log("update Sucessfully");
alert("Sucessfully Update");
}).catch(function(error) {
console.log(error);
});
},
cancel:function(key){
usersRef.child(key).update({edit:false})
},
saveUser:function(userProfile) {
const key = userProfile.key;
usersRef.child(key).set({username:userProfile.username,email:userProfile.email,userId:userProfile.userId,edit:true})
.then(function() {
console.log("Saved Sucessfully");
alert("Successfully Saved");
}).catch(function(error) {
console.log(error);
});
}
}
}
am i doing something wrong? thanks in advance!

How to redirect to a page with an object in vue

I have a couple of vue pages, one page is a list of users, the second is a list of permissions and the third is a vue component
that displays the list of users and another vue component that shows the details of a user.
What I'm trying to do is, if I'm on the permissions page and I would like to go to a specific user's details I would like to redirect
with that panel open.
I am able to redirect the the users page by doing window.location.href = '/admin/users'; but I'm not sure how I'm going to get
the user panel open.
I thought that if I could do $emit then that could pass the user object over to the users main page, but that won't work if I do
a window.location.href = '/admin/users';
Here is my code. This has 2 components displays a list of users and their details
<template>
<div class="row">
<div class="col-md-6">
<users :emit="emit" :users="users"></users>
</div>
<div class="col-md-6">
<detail v-if="userDetails" :emit="emit" :user="manageUser"></detail>
</div>
</div>
</template>
<script>
export default {
props: ['emit', 'users'],
data() {
return {
userDetails: false,
manageUser: null
}
},
mounted() {
this.emit.$on('user', payload => {
this.manageUser = payload.user;
this.userDetails = true;
});
}
}
</script>
This is my users lists
<template>
<div class="card">
<div class="card-header">
<h3 class="card-title text-success" style="cursor: pointer;" #click="createUser"> New User</h3>
</div>
<div class="card-body">
<table class="table table-sm table-striped">
<thead>
<tr>
<th>Name</th>
<th style="width:120px;"></th>
</tr>
</thead>
<tbody>
<tr v-for="user in users">
<td>{{user.name}}</td>
<td style="text-align: right;">
<button class="btn btn-sm btn-outline-info" #click="detail(user)">Details</button>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</template>
<script>
export default {
props: ['emit', 'users'],
data() {
return {
}
},
methods: {
detail(user) {
this.emit.$emit('user', { user: user });
}
}
}
</script>
and this is my permissions pages
<template>
<div class="card">
<div class="card-header">
<h3 class="card-title">{{permission.name}}</strong></h3>
</div>
<div class="card-body p-0">
<table class="table table-sm table-striped">
<thead>
<tr>
<th>User Name</th>
<th style="width:120px;"></th>
</tr>
</thead>
<tbody>
<tr v-for="user in users">
<td>{{user.name}}</td>
<td style="text-align: right;">
<button class="btn btn-sm btn-outline-info" #click="detail(user)">Details</button>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</template>
<script>
export default {
props: ['emit'],
data() {
return {
users: []
}
},
mounted() {
this.allUsers();
},
methods: {
allUsers() {
this.loading = true;
axios.get('/users').then(response => {
this.users = response.data.users;
});
},
detail(user) {
window.location.href = '/admin/users';
}
}
}
</script>

Vue.js modal window not opening on click from another component

I'm new to Vue.js and struggling to understand how to open a modal window on click.
Basically when I call the modal from another component I want to open the modal itself and show the data I'm passing to it from an API call. The problem is that that the modal still not shown with an inline "display:none". I'm going crazy why I cannot make it "display:block" even if I'm setting to true the prop I'm passing to the modal.
Can anyone look at the code and advise something? I'm out of resources :/
Modal component below:
<template>
<div id="modal" class="modal fade show" v-show="modalVisible" aria-labelledby="myModalLabel">
<div class="container">
<img :src="movieDetails.Poster" />
<div class="copy">
<p>
<span>Title:</span>
{{ movieDetails.Title }}
</p>
<p>
<span>Year:</span>
{{ movieDetails.Released }}
</p>
<p>
<span>Genre:</span>
{{ movieDetails.Genre }}
</p>
<p>
<span>Director:</span>
{{ movieDetails.Director }}
</p>
<p>
<span>Actors:</span>
{{ movieDetails.Actors }}
</p>
<p>
<span>Plot:</span>
{{ movieDetails.Plot }}
</p>
<p>
<span>IMDB Rating:</span>
{{ movieDetails.imdbRating }}
</p>
</div>
<button class="btn btn-light" #click="$emit('close')">Close</button>
</div>
</div>
</template>
<script>
export default {
name: "Modal",
props: ["movieDetails", "modalVisible"]
};
</script>
Component I'm calling the modal from:
<template>
<div class="container">
<h3>Movies database</h3>
<div class="input-group w-50 mx-auto">
<input
class="form-control"
id="input-search"
type="text"
v-model="textSearch"
placeholder="Search movie by title"
/>
<span class="input-group-btn">
<button type="button" class="btn btn-primary" v-on:click="searchMovie">Go!</button>
</span>
</div>
<div class="list-results" v-if="resultsFeed && resultsFeed.length">
<table class="table table-hover text-left">
<thead class="thead-light">
<tr>
<th scope="col">Title</th>
<th scope="col">Year</th>
<th scope="col">Poster</th>
<th scope="col"></th>
</tr>
</thead>
<tbody>
<tr v-for="result in resultsFeed" v-bind:key="result.imdbID" :data-id="result.imdbID">
<td>{{ result.Title }}</td>
<td>{{ result.Year }}</td>
<td>
<img alt="movie poster" :src="result.Poster" />
</td>
<td class="text-right">
<button class="btn btn-secondary" #click="moreMovieInfo(result)">Show info</button>
</td>
</tr>
</tbody>
</table>
</div>
<div class="list-message" v-else>No results!</div>
<modal v-if="modalVisible" #close="modalVisible = false" :movieDetails="extraInfoFeed" />
</div>
</template>
<script>
import axios from "axios";
import modal from "./Modal.vue";
export default {
name: "Search",
components: {
modal
},
data() {
return {
resultsFeed: [],
extraInfoFeed: [],
textSearch: "",
modalVisible: false,
modalData: null
};
},
methods: {
searchMovie() {
var that = this;
axios
.get(
`https://www.omdbapi.com/?s=${encodeURIComponent(
this.textSearch
)}&apikey=a56adf1b`
)
.then(function(response) {
that.resultsFeed = response.data.Search;
})
.catch(function(error) {
console.log(error);
});
},
moreMovieInfo: function(result) {
var that = this;
axios
.get(
`https://www.omdbapi.com/?i=${encodeURIComponent(
result.imdbID
)}&apikey=a56adf1b`
)
.then(function(response) {
that.extraInfoFeed = response.data;
that.modalVisible = true;
// document.getElementById("modal").style.display = "block";
})
.catch(function(error) {
console.log(error);
});
// this.modalData = result;
}
}
};
</script>
<modal v-if="modalVisible" #close="modalVisible = false" :movieDetails="extraInfoFeed" />
So you are using v-if here and your Model component is expecting modalVisible as a prop to work. So, even when modalVisible is true, v-if will allow Modal component to be created, but its internal v-show will hide it as its modalVisible prop is null.
This should work:
<modal :modal-visible="modalVisible" #close="modalVisible = false" :movieDetails="extraInfoFeed" />

Disable/Enable input for each item from a loop VueJS

I try to enable/disable each input from a loop. The problem is that my method it works just after refresh. After I modify something in code and save, then the input works.
<tr v-for="(item, index) in customer_names" :key="item.id">
<td>
<input :disabled="!item.disabled"
v-model="item.name"
type="text"
</td>
</tr>
<div class="edit_mode"
:class="{'display-none':!item.disabled}">
<i class="fa fa-save" #click="disableInput(index)" aria-hidden="true"></i>
</div>
<div class="edit_mode"
:class="{'display-none':item.disabled}">
<i class="fa fa-edit" #click="enableInput(index)" aria-hidden="true"></i>
</div>
props:['customer_names'],
data(){
return{
disabled: [],
}
}
enableInput(index){
console.log('enableInput',this.customer_names[index].disabled);
this.customer_names[index].disabled = false;
},
disableInput(index){
console.log('disabeInput',this.customer_names[index].disabled);
this.customer_names[index].disabled = true;
}
I didn't fully understand your problem. I deduced that you might want to enable or disable the text fields that you create from the data provided. If this is still not what you meant, correct your question by pasting more source code, and explain your problem in more detail.
Vue.component("custom", {
template: "#custom-template",
props: ["customer_names"],
methods: {
enableInput(item) {
item.disabled = false;
},
disableInput(item) {
item.disabled = true;
},
toggleInput(item) {
item.disabled = !item.disabled;
}
}
});
new Vue({
data() {
return {
items: [
{ name: "fus", disabled: false },
{ name: "ro", disabled: false },
{ name: "dah", disabled: true }
]
};
}
}).$mount("#app");
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<custom :customer_names="items" />
</div>
<script type="text/x-template" id="custom-template">
<table cellpadding=5>
<tr>
<th>Input</th>
<th>Version 1</th>
<th>Version 2</th>
</tr>
<tr v-for="item in customer_names" :key="item.id">
<td>
<input :disabled="item.disabled" v-model="item.name" type="text" />
</td>
<td>
<button #click="item.disabled = false">E</button>
<button #click="item.disabled = true">D</button>
<button #click="item.disabled = !item.disabled">T</button>
</td>
<td>
<button #click="enableInput(item)">E</button>
<button #click="disableInput(item)">D</button>
<button #click="toggleInput(item)">T</button>
</td>
</tr>
</table>
</script>