I'm trying to use a computed method total this calculate the number of word and multiply to a price.
The price is obtained with a method accessing an API.
But the computed method don't use the updated data price. Its returning empty.
var app = new Vue({
el: '#app',
data: {
text: '',
qualidade: '',
selected: '',
options: [],
lang1: '',
lang2: '',
ola: '',
price: ''
},
beforeCreate: function() {
axios.get('/languages.json')
.then((response) => {
this.options = response.data
})
},
computed: {
total: function() {
return (this.words * this.preco).toLocaleString('de-DE')
},
words: function() {
if(this.text.length == 0) {
return 0
} else {
this.words = this.text.split(' ').length
console.log(this.words)
return this.text.split(' ').length
}
}
},
methods: {
price: function () {
axios.post('/service/price', {
lang_origem: this.lang1,
lang_dest: this.lang2
})
.then(function (response) {
this.preco = response.data.price
console.log(this.price)
})
.catch(function (error) {
console.log(error);
});
}
}
})
Problems I am able to see in your codes,
Both data and methods have a property named price, they would clash.
preco is not reactive. If it's not reactive, changing its value will not update the computed values which depends on it. You should add preco to data to make it reactive.
You should use arrow function in the axios request. Otherwise, this in this.preco = ... would not be referring to the Vue instance
this.preco will be empty as long the server call ( axios.post('/service/price' ...) is not finished you need to rewrite this to a method that updates the this.total
Something like this:
{
methods: {
calcTotal: function () {
this.price()
.then(() => {
this.total = (this.words * this.preco).toLocaleString('de-DE')
})
},
price: function () {
//return so that we can wait on this to be finished
return axios.post('/service/price', {
lang_origem: this.lang1,
lang_dest: this.lang2
})
.then(function (response) {
this.preco = response.data.price
console.log(this.price)
})
.catch(function (error) {
console.log(error);
});
}
}
}
Related
First I defined Types, Severities, and Statuses as [] and returned them in data().
Then I filled them with data in the methods getTypes(), getSeverities(), and getStatuses().
I want to use Types, Severities, and Statuses in the method getName()(just has console.log() as an example for now).
I noticed when debugging getNames(), type in the second for loop is undefined. Is it because the method is using Type before it was assigned values in getTypes()? How can I make it work?
Note: Types, Severities, and Statuses do get assigned values in the methods getTypes(), getSeverities(), and getStatuses(), the issues is how to use the data in other methods.
<script>
import IssuesTable from '../MyIssuesPage/IssuesTable.vue'
import AddIssue from '../MyIssuesPage/AddIssue.vue'
import axios from 'axios'
export default {
props: ['id', 'project', 'issuesList', 'index'],
components: { IssuesTable, AddIssue },
data() {
return {
Issues: this.issuesList[this.index],
tab: null,
items: [{ tab: 'Issues' }, { tab: 'Calender' }, { tab: 'About' }],
Types: [],
Severities: [],
Statuses: [],
}
},
setup() {
return {
headers: [
{ text: 'Title', value: 'title' },
{ text: 'Description', value: 'description' },
{ text: 'Estimate', value: 'time_estimate' },
{ text: 'Assignees', value: 'userid' },
{ text: 'Type', value: 'issueTypeId' },
{ text: 'Status', value: 'issueStatusId' },
{ text: 'Severity', value: 'issueSeverityId' },
],
}
},
mounted() {
this.getTypes(), this.getSeverities(), this.getStatuses(), this.getNames()
},
methods: {
getTypes() {
axios
.get('http://fadiserver.herokuapp.com/api/v1/my-types')
.then(response => {
this.Types = response.data
})
.catch(error => {
console.log(error)
})
},
getSeverities() {
axios
.get('http://fadiserver.herokuapp.com/api/v1/my-severities')
.then(response => {
this.Severities = response.data
})
.catch(error => {
console.log(error)
})
},
getStatuses() {
axios
.get('http://fadiserver.herokuapp.com/api/v1/my-status')
.then(response => {
this.Statuses = response.data
})
.catch(error => {
console.log(error)
})
},
getNames() {
for (var issue of this.Issues) {
for (var type of this.Types) {
if (issue.issueTypeId == type.id) console.log('test')
}
}
},
},
}
</script>
First of all, use created() instead of mounted() for calling methods that fetch data.
Next, you need to call getNames() only after all fetch methods complete.
created() {
this.getTypes()
.then(this.getSeverities())
.then(this.getStatuses())
.then(this.getNames());
}
In order to chain methods like this you need to put return statement before each axios like this
getTypes() {
return axios
.get("https://fadiserver.herokuapp.com/api/v1/my-types")
.then((response) => {
this.Types = response.data;
})
.catch((error) => {
console.log(error);
});
}
In this component, I see you are receiving issuesList and index props from the outside. I cannot know those values but you can console.log both of them inside created() and see what is happening because issuesList[index] is undefined.
That probably means issuesList is an array and that index does not exist in that array.
I'm loading Api data into a reactive variable called 'MyListings', and attempting to sort it based on latest id -> earliest id.
The problem I'm having is that since array.sort is an 'in-place' function it overwrites the original array which causes the Vue page to infinitely re-render.
Is there some way to clone the data out of data()? (I tried setting a constant to this.MyListings which produced the same results as the original)
api data
[
{
id: 1,
title: "sdf",
start_date: "2021-01-13",
poster:
"http://localhost:8000/media/images/2-Artwork-by-Tishk-Barzanji_iZookmb.jpg",
genre: "Action"
},
{
id: 3,
title: "ooga booga",
start_date: "2021-01-07",
poster: "http://localhost:8000/media/images/1_bdm0Lld.jpg",
genre: "Thriller"
}
];
Relevant Vue bits
updated() {
this.sortedArray();
},
data() {
return {
genre: "",
MyListings: []
};
},
methods: {
// no access to AsnycData in components, handle the incoming data like axios in vanilla vue.
memberListings($axios) {
this.$axios
.get("/api/v1/memberlistings/")
.then(response => {
// console.log(response, "response");
this.MyListings = response.data;
})
.catch(error => {
console.log(error);
});
},
formSubmit() {
this.update(); //all dropdown combinations below include a POST request
},
update() {
if (this.genre !== "") {
console.log("genre submitted");
this.$axios
.get(`/api/v1/memberlistings/`, {
params: {
genre: this.genre
}
})
.then(response => {
this.MyListings = response.data;
})
.catch(error => {
console.log(error);
});
} else {
this.$axios
.get(`/api/v1/memberlistings/`)
.then(response => {
this.MyListings = response.data;
})
.catch(error => {
console.log(error);
});
}
},
sortedArray() {
const sortedMyListings = this.MyListings;
sortedMyListings.sort((a, b) => b.id - a.id);
console.log(sortedMyListings, "sortedlist");
console.log("works");
}
}
**This is what the endless rendering looks like in console log **
[1]: https://i.stack.imgur.com/CTVAH.png
I believe, you want to display data in sorted order. hence, you should create a computed property.
computed:{
sortedData() {
return this.MyListings.map(item=>item).sort((a,b)=> a.id - b.id)
}
},
and use that computed property in template
<template>
<div id="app">
<div v-for="item in sortedData" :key="item.id">
{{item.id}}-{{item.title}}
</div>
</div>
</template>
I'm using vue in laravel and trying to get a controller function that I'm hitting to return the data so that I can use it in the data() section of my vue template.
I know the controller function returns what I need, but I'm not so sure how I need to handle the return/response in the axios call in order to start placing the data into the data() function in vue
Blade/Vue template
import moment from 'moment'
export default {
name: 'calendar',
data () {
return {
events: [
{
title: 'test',
allDay: true,
start: '2019-08-17',
},
],
config: {
defaultView: 'month',
eventRender: function(event, element) {
console.log(event)
}
},
}
},
created() {
this.fetchTasks();
},
methods: {
fetchTasks() {
axios.get('/landing/tasks' )
.then((response) => {
// handle success
this.assetOptions = response.data;
})
.catch(function (error) {
// handle error
console.log(error);
})
.finally(function () {
});
}
}
}
Route
Route::get('/landing/tasks', 'landingController#getTasks')
->name('landing/tasks');
Controller
public function getTasks()
{
$getTask = Task::getTaskForLanding();
$result = array();
foreach($getTask as $id => $task){
$result[$task->taskt_id][] = $task;
}
}
If you are certain that the Controller returns what you need, the only thing you are missing is declaration of assetOptions. To be able to assign response.data to assetOptions later on, you have to declare it in the data function first.
data() {
return {
...
assetOptions = []; // assuming you are expecting an array
...
};
}
Once that is done, you are all set.
I've a component which render a booking table; When I update my store in another component, the table isn't updated (but the store does and so the computed properties; My guess is that the problem is related to the filter not being updated but I'm not sure at all.
To do so, I've a vuex store:
...
const store = new Vuex.Store({
state: {
bookings: [],
datesel: '',
},
getters: {
bookings: (state) => {
return state.bookings
},
},
mutations: {
SET_BOOKINGS: (state, bookings) => {
state.bookings = bookings
},
},
actions: {
setBookings: ({commit, state}, bookings) => {
commit('SET_BOOKINGS', bookings)
return state.bookings
},
}
})
export default store;
The table is basically a v-for with a filter:
<template v-for="booking in getBookings( heure, terrain )">
Where getBookings is a method:
getBookings(hour, court) {
return this.$store.state.bookings.filter(booking => booking.heure == hour && booking.terrain == court);
}
I've another component which will update my bookings state through a method:
bookCourt() {
axios.post('http://localhost/bdcbooking/public/api/reservations/ponctuelles',
{
date: this.datesel,
membre_id: '1',
heure: this.chosenHour,
terrain: this.chosenCourt,
saison_id: '1'
})
.then(response => {
// JSON responses are automatically parsed.
console.log(response.data);
})
.catch(e => {
this.errors.push(e)
})
axios.get('http://localhost/bdcbooking/public/api/getReservationsDate?datesel=' + this.datesel)
.then(response => {
// JSON responses are automatically parsed.
console.log(response.data);
this.bookings = response.data;
})
.catch(e => {
this.errors.push(e)
})
$(this.$refs.vuemodal).modal('hide');
}
While this.bookings is a computed property:
computed: {
bookings: {
get () {
return this.$store.getters.bookings
},
set (bookings) {
return this.$store.dispatch('setBookings', bookings)
console.log('on lance l action');
}
}
}
Your table is not updated because getBookings is a simple method and hence the method won't be fired again based on vuex state changes.
You can make this getBookings method as an computed property that returns filtered results and will also upadte on state changes.
I'm stuck at a crossroads with a component I am working on.
I have the following component "RecentUpdates"
Within it I am passing props down to a few other components, as you can see from the top of the file.
My problem is when adding a new post, I can not figure out how to get the correct update object array back and i also can not figure out the correct 'Vue way' to update the data prop that is being passed down to the "PostList" component.
<template>
<div>
<PostFilter v-on:selectedCategory="getSelectedPosts" v-on:showAllPosts="showAllPosts" :user="user" :categories="categories"/>
<PostList v-if="recent_posts[0]" :categories="categories" :posts="recent_posts[0]" :user="user"/>
<Pagination v-on:getPreviousPage="getPreviousPage" v-on:getNextPage="getNextPage"/>
</div>
</template>
<script>
import PostList from './PostList';
import PostFilter from './PostFilter';
import Pagination from './Pagination';
import EventBus from '../event-bus';
export default {
name: 'RecentUpdates',
data: () => ({
errors: [],
recent_posts: [],
}),
props: ['categories', 'user'],
components: {
PostList,
PostFilter,
Pagination
},
created() {
if (this.user.meta.selected_categories[0] == 0) {
this.showAllPosts();
}
// do not call here, not working as expected
// is switching selected category to an incorrect one
// this.updateList();
this.getSelectedCategory();
},
watch: {
recent_posts: function(newValue) {
EventBus.$on('addPost', function(newPost) {
console.log(newPost);
this.$forceUpdate();
//this.recent_posts.push(newPost);
//this.$set(this.recent_posts, newPost, newPost);
// this.$nextTick(function () {
// this.recent_posts.push(newPost);
// });
});
console.log(this.recent_posts[0]);
// this.$nextTick(function () {
// console.log(this.recent_posts[0]) // => 'updated'
// });
// if (this.user.meta.selected_categories[0] == 0) {
// EventBus.$on('addPost', this.showAllPosts);
// } else {
// EventBus.$on('addPost', this.getSelectedCategory);
// }
//this.updateList();
}
},
methods: {
// updateList() {
// if (this.user.meta.selected_categories[0] == 0) {
// EventBus.$on('addPost', this.showAllPosts);
// //EventBus.$emit('newPost');
// } else {
// EventBus.$on('addPost', this.getSelectedCategory);
// //EventBus.$emit('newPost');
// }
// },
getSelectedCategory() {
let categoryId = this.user.meta.selected_categories[0];
this.getSelectedPosts(categoryId);
},
showAllPosts() {
axios.get('/wp-json/wp/v2/posts?_embed=true&status=[publish,resolved,unresolved]',
{headers: {'X-WP-Nonce': portal.nonce}})
.then(response => {
this.recent_posts = [];
//this.recent_posts = response.data;
//console.log(response.data);
this.recent_posts.push(response.data);
console.log(this.recent_posts[0]);
})
.catch(e => {
this.errors.push(e);
});
},
getSelectedPosts(categoryId) {
axios.get('/wp-json/wp/v2/posts?_embed=true&status=[publish,resolved,unresolved]&categories=' + categoryId,
{headers: {'X-WP-Nonce': portal.nonce}})
.then(response => {
this.recent_posts = [];
//console.log(response.data);
this.recent_posts.push(response.data);
console.log(this.recent_posts[0]);
})
.catch(e => {
this.errors.push(e);
});
},
/**
* Pagination methods
*
*/
getPreviousPage(page) {
axios.get('/wp-json/wp/v2/posts?_embed=true&status=[publish,resolved,unresolved]&page=' + page,
{headers: {'X-WP-Nonce': portal.nonce}})
.then(response => {
this.recent_posts = response.data;
})
.catch(e => {
this.errors.push(e);
});
},
getNextPage(page) {
axios.get('/wp-json/wp/v2/posts?_embed=true&status=[publish,resolved,unresolved]&page=' + page,
{headers: {'X-WP-Nonce': portal.nonce}})
.then(response => {
this.recent_posts = response.data;
})
.catch(e => {
this.errors.push(e);
});
}
},
}
</script>
<style>
</style>
So there are a number of issues I see reading through your code.
You have a recent_posts data property, which is an array. When you make your ajax call to get the posts you push the response which is also an array into the recent_posts array. Why? Why not just set recent_posts = response.data? Then you won't have to be passing recent_posts[0] around.
You're setting up your EventBus handler inside a watcher. This is really unusual. Typically you would set up a handler inside created or mounted.
this inside the EventBus handler likely refers to the EventBus and not your Vue. Ideally, you would set the handler to be a method on the component, which is already bound to the Vue. Something like EventBus.$on("addPost", this.addPost).
Once you've done all that, adding a new post should be as simple as this.recent_posts.push(newPost).
Here is what I might recommend.
export default {
name: 'RecentUpdates',
data(){
return {
errors: [],
recent_posts: []
}
},
props: ['categories', 'user'],
components: {
PostList,
PostFilter,
Pagination
},
created() {
if (this.user.meta.selected_categories[0] == 0) {
this.showAllPosts();
}
this.getSelectedCategory();
EventBus.$on("addPost", this.addPost)
},
beforeDestroy(){
EventBus.$off("addPost", this.addPost)
},
methods: {
getPosts(url){
axios.get(url, {headers: {'X-WP-Nonce': portal.nonce}})
.then(response => this.recent_posts = response.data)
.catch(e => this.errors.push(e))
},
showAllPosts() {
const url = '/wp-json/wp/v2/posts?_embed=true&status=[publish,resolved,unresolved]';
this.getPosts(url);
},
getSelectedPosts(categoryId) {
const url = '/wp-json/wp/v2/posts?_embed=true&status=[publish,resolved,unresolved]&categories=' + categoryId;
this.getPosts(url);
},
addPost(newPost){
this.recent_posts.push(newPost)
},
... //other methods
},
}
Try using kebab-case in your event listeners instead of camelCase:
Example: v-on:selectedCategory="getSelectedPosts" should be v-on:selected-category="getSelectedPosts".
Example: v-on:showAllPosts="showAllPosts" should be v-on:show-all-posts="showAllPosts" or even using the shortcut #show-all-posts="showAllPosts".
UPDATE: If you can provide the code of the other components so we can have a clearer vision of your problem, But you only want to track changes that happens on an object or an array in vue.js you need to deep watch them.
your watcher should be :
watch: {
recent_posts: {
deep: true,
handler: function( oldValue, newValue) {
console.log( "recent_posts has changed" );
// A post has been added, updated or even deleted
}
}
}