Vue access iteration item inside method from template - vuejs2

Learning Vue and stuck.
I am trying to access user in each of the methods to confirm true/false values for each isHuman and isPlayerTurn functions. How do I access the user in the loop instance inside each method?
I have the following table row in a template:
<template>
<div class="col-xs-12">
<h5>Enemies online</h5>
<span id="no-online-players" class="player-label pull-right">{{ usersCount }}</span>
<table id="new-game-opponents" class="new-game-opponents">
<tbody>
<tr v-for="(user, index) in users" :key="index" :class="[isPlayerTurn() ? playerTurnClass : '']">
<td class="player-status text-right">
<div v-if="isPlayerTurn">
<span :id="['player_turn-' + user.owner_id]" class="stage-label pull-right">{{ progress }}</span>
</div>
<div v-else>
<i class="fa fa-clock-o" aria-hidden="true" style="margin-right:5px;"></i>
</div>
</td>
<td class="player-status text-right">
<div v-if="isHuman">
<i class="fa fa-desktop" aria-hidden="true"></i>
</div>
<div v-else>
<i class="fa fa-user" aria-hidden="true" style="margin-right:2px;"></i>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</template>
<script>
export default {
props: ['users', 'usersCount'],
data: function () {
return {
playerTurnClass: 'next-player-turn',
myPlayer: my_player,
progress: game.progress.status.turn_status.current_stage
}
},
methods: {
isPlayerTurn: function(user, index) {
return this.myPlayer.id === this.users[index]['id'];
},
isHuman: function(user, index) {
return this.users[index]['owner_id'] !== 'ai';
}
}
};
</script>
I am trying to access user in each of the methods to confirm true/false values for each isHuman and isPlayerTurn functions.
How do I access the user in the loop instance inside each method? Or should I be doing this a different way?
Additionally, the progress property is not rendered. But one step at a time!

First of all, try
<div v-if="isPlayerTurn(user, index)">...</div>
and
<div v-if="isHuman(user, index)">...</div>
I noticed you don't really use user in both isPlayerTurn and isHuman methods, so I suggest leaving user out.
And regarding progress, I don't know where game is from, but I'm guessing the value in game.progress.status.turn_status.current_stage is dynamic, so I suggest you first try changing progress to a computed property:
computed: {
progress() {
return game.progress.status.turn_status.current_stage
}
}

Related

Vue - change/set a variable value in template

Working in Vue, I am trying to set a variable based on another variable within the template. This is within a loop, and I need to set a value that can be used in 'next' iteration of the loop (to change the way a table is rendered, based on the variable).
I have the following:
<template>
...
<tbody v-for="(lo,index) in learn" :key="lo.id">
<tr>
<td colspan="2">LO{{index+1}} {{lo.attributes.field_lo}}</td>
<td v-if="!nextDist"> </td>
</tr>
<tr>
<td>
<div
v-for="(pass,index) in lo.attributes.field_pass"
:key="index"
>P{{pStep()}} {{pass}}</div>
</td>
<td>
<div
v-for="(merit,index) in lo.attributes.field_merit"
:key="index"
>M{{mStep()}} {{merit}}</div>
</td>
<td v-if="lo.attributes.field_dshared && next" ***SET VALUE OF this.next*** rowspan="3">
<span class="has-text-weight-bold">D{{dStep()}} </span>{{lo.attributes.field_dist}}
</td>
<td v-else-if="!lo.attributes.field_dshared" ***SET VALUE of this.next*** ><span class="has-text-weight-bold">D{{dStep()}} </span>{{lo.attributes.field_dist}}
</td>
***else render nothing***
</tr>
</tbody>
</template>
export default {
name: "SpecUnit",
components: {
EssentialContent
},
data() {
return {
unit: "",
learn: "",
nextDist: "",
next: ""
};
},
...
}
What I'd like to be able to do is set the value of 'next' (this.next) so that when the loop iterates, I can check to see if I should which of the I should render or render nothing (because we are 'rowspanning').
I've tried computed and methods, but can't seem to get this working. I've looked to use Vue.set, but I'm struggling with that.
I'm still new to Vue, so any help would be greatly appreciated.
Thanks
It looks like Florian Reuschel had a similar problem and already solved it (although with some caveats)
Let's say we have something like that:
<!-- List.vue -->
<ul>
<li v-for="id in users" :key="id">
<img :src="getUserData(id).avatar"><br>
🏷️ {{ getUserData(id).name }}<br>
🔗 {{ getUserData(id).homepage }}
</li>
</ul>
His approach is to use a helper renderless component with a scoped slot
const Pass = {
render() {
return this.$scopedSlots.default(this.$attrs)
}
}
and then
<!-- List.vue -->
<ul>
<Pass v-for="id in users" :key="id" :metadata="getUserData(id)">
<li slot-scope="{ metadata }">
<img :src="metadata.avatar"><br>
🏷️ {{ metadata.name }}<br>
🔗 {{ metadata.homepage }}
</li>
</Pass>
</ul>
If you take a look at the comments section on his blog article, you will see other approaches, too. For example, you can use an expression inside v-bind
<li v-for="id in users" :key="id" :demo="item = getUserData(id)">
<img :src="item.avatar" /><br />
🏷️ {{ item.name }}<br />
🔗 {{ item.homepage }}
</li>

is there similar to standalone in vueJS

I'm asking if we have similar attribute as standalone in vuejs.
I want to add items in certifications.
Here is the button add :
<l-button #click="Add()"><i class="fa fa-plus"> </i></l-button>
The add function:
Add() {
this.certifications.push( item);
this.newItemAdded = true
},
<div v-for="(item,index) in certifications">
<fg-input type="text" required
:label="$t('candidate.certification.title')"
:placeholder="$t('candidate.certification.title')"
:disabled="disableIt && !newItemAdded ">
</fg-input>
</div>
My problem is that when i add new item, the previous input also is enabled.
I want to know if there is somathing similar to standalone( like angular) in vuejs.
You must use the index and length of certifications
<div v-for="(item,index) in certifications">
<fg-input type="text" required
:label="$t('candidate.certification.title')"
:placeholder="$t('candidate.certification.title')"
:disabled="(index+1!==certifications.length)">
</fg-input>
</div>
and when you need edit button:
data() {
return {
certifications: [],
editableIndex: null
}
},
methods: {
Add() {
...
},
Edit(index) {
this.editableIndex = index
},
}
}
and in template
<template>
<div>
<div v-for="(item,index) in certifications">
<fg-input type="text" required
:label="$t('candidate.certification.title')"
:placeholder="$t('candidate.certification.title')"
:disabled="(index+1!==certifications.length&&editableIndex===null) || editableIndex===index">
</fg-input>
<l-button #click="Edit(index)"><i class="fa fa-pen"> </i></l-button>
</div>
<l-button #click="Add()"><i class="fa fa-plus"> </i></l-button>
</div>
</template>

Getting data back into the root with nested components in vue

I am building a multiple page app with latest Laravel and latest Vue.js. At the end of this post you will see what I am trying to achieve - which I have done visually. However the user needs to be able to edit the text, assigned user and the date of each item. I have started with the date and as you can see I have the date picker working as well.
Where I am struggling is updating the main model of data in the root so that I can save the changes that the user has made via a HTTP request. Initially the tree's data is loaded in via HTTP as well (example below).
I have built the below using nested components and I have read that two binding has been depreciated for props on components. I know that I need to emit and user events but I'm sure how this would work if the components are nested?
Here is an example of the data that get's loaded via HTTP. Below is a very small example, however this could be much larger
{
"objective":"Test",
"user_id":null,
"by":"08\/09\/2018",
"colour":"#1997c6",
"children":[
{
"objective":"Test",
"user_id":11,
"by":"08\/09\/2018",
"colour":"#d7e3bc",
"children":[]
}, {
"objective":"Test",
"user_id":11,
"by":null,
"colour":"#1997c6",
"children":[]
}
]
}
Here are the components that I have put together so far.
Vue.component('tree-date', {
props: ['date'],
data () {
return {
id: 0
}
},
mounted() {
this.id = uniqueId();
$('#picker-' + this.id).datetimepicker({
format: 'DD/MM/YYYY',
ignoreReadonly: true
});
},
template: `
<div class="date-container" :id="'picker-' + id" data-target-input="nearest" data-toggle="datetimepicker" :data-target="'#picker-' + id">
<div class="row">
<div class="col-2">
<div class="icon">
<i class="fa fa-calendar-alt"></i>
</div>
</div>
<div class="col-10">
<input type="text" class="form-control datetimepicker-input" readonly="readonly" :data-target="'#picker-' + id" v-model="date">
</div>
</div>
</div>`
});
Vue.component('tree-section', {
props: ['data', 'teamUsers', 'first'],
methods: {
test () {
this.$emit('test');
}
},
template: `
<table v-if="data.length != 0">
<tr>
<td :colspan="data.children !== undefined && (data.children.length * 2) > 0 ? data.children.length * 2 : 2">
<div class="node" :class="{'first': first == true}">
<div class="inner">
<tree-date :date="data.by"></tree-date>
<div class="objective">
{{ data.objective }}
</div>
<div class="author" v-if="data.user_id !== null">
{{ teamUsers[data.user_id].first_name }} {{ teamUsers[data.user_id].last_name }}
</div>
<div class="author" v-if="data.user_id === null">
Unassigned
</div>
</div>
</div>
</td>
</tr>
<tr class="lines" v-if="data.children.length > 0">
<td :colspan="data.children.length * 2"><div class="downLine"></div></td>
</tr>
<tr class="lines" v-if="data.children.length > 0">
<td class="rightLine"></td>
<td class="topLine" v-for="index in ((data.children.length * 2) - 2)" :key="index" :class="{'rightLine': index % 2 == 0, 'leftLine': Math.abs(index % 2) == 1}"></td>
<td class="leftLine"></td>
</tr>
<tr v-if="data.children.length > 0">
<td colspan="2" v-for="child in data.children">
<tree-section :data="child" :team-users="teamUsers" :first="false"></tree-section>
</td>
</tr>
</table>
`
});
This all get's called in the view by:
<tree-section :data="data" :team-users="teamUsers" :first="true"></tree-section>
Any help getting data update in the components back into the root will be most helpful.
by default, vue props (if objects or arrays) are being passed by reference- that means that if you change your object on the child component, the original object on the parent component will get changed too.
from vue api:
Note that objects and arrays in JavaScript are passed by reference, so
if the prop is an array or object, mutating the object or array itself
inside the child component will affect parent state.
https://v2.vuejs.org/v2/guide/components-props.html

Data Reactivity On Post Request Vue

Im having issues with my data not reacting correctly when a new object is added to the array of data. I am currently looping through an array of engagements that belong to a client like this
<div class="row mx-2 px-2 justify-content-between" v-if="!engagementLoaded">
<div class="card mb-3 shadow-sm col-lg-5 col-md-3 p-0" v-for="(engagement, index) in engagement" :key="index">
<div class="d-flex justify-content-between card-header">
<h3 class="m-0 text-muted">{{ index + 1 }}</h3>
<h5 class="align-self-center m-0"><span>Return Type: </span> {{ engagement.return_type }} </h5>
</div>
<div class="card-body text-left p-0 my-1">
<h5 class="p-4"><span>Year: </span> {{ engagement.year }} </h5>
<hr class="my-1">
<h5 class="p-4"><span>Assigned To: </span> {{ engagement.assigned_to }} </h5>
<hr class="my-1">
<h5 class="p-4"><span>Status: </span> {{ engagement.status}} </h5>
</div>
<div class="card-footer d-flex justify-content-between">
<router-link to="#" class="btn">View</router-link>
<router-link to="#" class="btn">Edit</router-link>
</div>
</div>
</div>
Everything works fine until I add a new engagement to the array. My AddEngagement Component is seperate but this is the form and script for it.
<form #submit.prevent="addEngagement" class="d-flex-column justify-content-center">
<div class="form-group">
<select class="form-control mb-3" id="type" v-model="engagement.return_type">
<option v-for="type in types" :key="type.id" :value="type">{{ type }}</option>
</select>
<input type="text" class="form-control mb-3" placeholder="Year" v-model="engagement.year">
<input type="text" class="form-control mb-3" placeholder="Assign To" v-model="engagement.assigned_to">
<input type="text" class="form-control mb-3" placeholder="Status" v-model="engagement.status">
<div class="d-flex justify-content-between">
<button type="submit" class="btn btn-primary d-flex justify-content-start">Create</button>
<router-link v-bind:to="'/client/' +client.id+ '/engagements'" class="btn btn-secondary float-right">Dismiss</router-link>
</div>
</div>
</form>
This is the addEngagement Method for the form
methods: {
addEngagement(e) {
if(!this.engagement.return_type || !this.engagement.year ){
return
} else {
this.$store.dispatch('addEngagement', {
id: this.idForEngagement,
client_id: this.client.id,
return_type: this.engagement.return_type,
year: this.engagement.year,
assigned_to: this.engagement.assigned_to,
status: this.engagement.status,
})
e.preventDefault();
}
e.preventDefault();
this.engagement = ""
this.idForEngagement++
this.$router.go(-1);
},
},
I think the issue is happening here but im not sure
this.$router.go(-1);
Ive tried this as well
this.$router.push({path: 'whatever route'})
and it did not change either
Somehow I need the parent component EngagementsList to react correctly to my newly added engagement that is submitted from the AddEngagement componenet if that makes sense..
here is the code for the addEngagement in the Vuex
addEngagement(context, engagement) {
axios.post(('/engagements'), {
client_id: engagement.client_id,
return_type: engagement.return_type,
year: engagement.year,
assigned_to: engagement.assigned_to,
status: engagement.status,
done: false
})
.then(response => {
context.commit('getClientEngagement', response.data)
})
.catch(error => {
console.log(error)
})
},
Although I can't see your code, I'm pretty certain I know the problem. You have an array but it's not reactive to the objects within. This is because Vue doesn't know to observe this array.
If you want your array to be reactive, use Vue.set from within your store model.
Vue.set(this/state, 'array_name', Array<Of objects>)
This will make sure vue watches for changes within the Array.
For your use case, you will need to append the engagement object to the existing array and then use that array:
const engagements = state.engagements
engagements.push(engagement)
Vue.set(state, 'engagements', engagements)
So i've tried different configurations of this. I changed my state description that the v-for is iterating to clientengagements
engagement now equals clientengagements
here is the mutation currently
getClientEngagements(state, engagement, clientengagements) {
state.clientengagements = clientengagements
clientengagements.push(engagement)
Vue.set(state, 'clientengagements', clientengagements)
},
Which is not working. Ive also tried
getClientEngagements(state, clientengagements) {
state.clientengagements = clientengagements
clientengagements.push(engagement)
Vue.set(state, 'clientengagements', clientengagements)
},
Which will tell me that "engagement" is not defined
If anyone is still able to help this is the Action
addEngagement(context, engagement) {
axios.post(('/engagements'), {
client_id: engagement.client_id,
return_type: engagement.return_type,
year: engagement.year,
assigned_to: engagement.assigned_to,
status: engagement.status,
done: false
})
.then(response => {
context.commit('getClientEngagements', response.data)
})
.catch(error => {
console.log(error)
})
},
The response.data is mutating my clientengagements array to just a single object of the newly added engagement..
context.commit('getClientEngagements`, response.data)
Is commiting to this mutation
getClientEngagements(state, engagement, clientengagements) {
state.clientengagements = clientengagements
clientengagements.push(engagement)
Vue.set(state, 'clientengagements', clientengagements)
},

Passing a variable to a Vue component from the parent page that called it

I have a simple table that displays all of my data:
main file.php
<table class="table table-bordered table-hover" id="all-jobs">
<thead>
<tr>
<th>{{ __('Job Name') }}</th>
<th>{{ __('Job Description') }}</th>
<th>{{ __('Job Status') }}</th>
<th>{{ __('Job Applications') }}</th>
<th>{{ __('Manage') }}</th>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td class="non_searchable"></td>
<td class="non_searchable"></td>
</tr>
</thead>
</table>
<div id="app">
<div id="editJob" class="modal fade in" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<edit-job id=""></edit-job>
</div>
</div>
</div>
</div>
Now, I have a edit button that I am trying to open an edit modal for that specific row:
<a href='' data-id='{$job->id}' class='btn btn-xs btn-danger' data-toggle='modal' data-target='#editJob'><i class='fa fa-close'></i></a>";
The href is is location in one of the of my data table, I am trying to pass that to my .vue file so I can use it for my get and post requests:
myfile.vue
<template>
<div>
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Edit Job</h4>
</div>
<div class="modal-body">
<form method="post" #submit.prevent="signIn" #keydown="errors.clear($event.target.name)">
<!-- Removed code, it's just inputs !-->
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-info btn-fill btn-wd" v-on:click="addJob">Save</button>
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</template>
<script>
export default
{
props: ['id'],
data: function ()
{
return {
countries: [],
name: '',
summary: '',
salarytype: '',
salaryfrom: '',
salaryto: '',
location: '',
contactemail: '',
contactphone: '',
errors: new Errors()
}
},
methods:
{
addJob: function()
{
axios.post('/jobs/edit', this.$data)
.then(response => {
if(response.data.status === true){
$('#editJob').modal('hide');
getJobTable();
}
else{
formError = response.data.message;
}
})
.catch(error => this.errors.record(error.data))
}
},
mounted: function()
{
console.log($(this).data('id'));
axios.get('/jobs/my-job/')
.then(response => {
this.name = response.data.name
this.summary = response.data.summary
this.salarytype = response.data.salary_type
this.salaryfrom = response.data.salary_from
this.salaryto = response.data.salary_to
this.location = response.data.location
this.contactemail = response.data.contact
this.contactphone = response.data.phone
})
axios.get('/countries')
.then(response => {
this.countries = response.data;
})
}
}
</script>
How can I past my href id to my to use for my request? Thanks
MY structure:
Created-jobs.blade.php
https://pastebin.com/TPBnC1qP
Edit-Job.vue
https://pastebin.com/30UWR5Nn
app.js
https://pastebin.com/1yxZWvVC
The table just populates the data, and adds the dropdown like so:
<ul class='icons-list'>
<li class='dropdown'>
<a href='#' class='dropdown-toggle' data-toggle='dropdown' aria-expanded='false'>
<i class='icon-menu9'></i>
</a>
<ul class='dropdown-menu dropdown-menu-right'>
<li>
<a data-id='{$job->id}' onclick='getID({$job->id})' data-toggle='modal' data-target='#editJob'>
<i class='icon-file-pdf'></i> Edit Job
</a>
</li>
<li>
<a href='javascript:void();' data-id='{$job->id}' onclick='deleteJob({$job->id})'>
<i class='icon-cross'></i> Delete Job
</a>
</li>
</ul>
</li>
</ul>
You don't give a lot of information about the structure of your application, but it looks like you are using at least one single file component to display the data inside your modal which is being entirely displayed via Bootstrap. It also looks like the table with the id values you want to pass to Vue is outside of the Vue itself.
That being the case, the way you can pass the data you want to the single file component is to capture the Vue in a variable and then set the id whenever the link in your table is clicked.
Let's suppose your main.js or app.js looks like this:
import Vue from 'vue'
import EditJob from './EditJob.vue'
Vue.component('edit-job', EditJob)
const app = new Vue({
el: '#app',
data:{
id: null
}
})
// Add a click handler for the links with the `data-id` property.
// This is using jQuery (because you are using Bootstrap) but you
// can do this any way you want.
$("[data-id]").on("click", function(){
// Set the Vue's data to the data-id property in the link.
app.id = this.dataset.id
})
Notice how the code captures the result of new Vue(...) in the variable app. Then I've added the data property, id to the Vue and a click handler for all of your links that sets app.id to this.dataset.id whenever a link is clicked. In this way, every time a link is clicked, the data property in the Vue will be set to the id of the clicked link.
Then, all you need to do is bind the id property to your component.
<edit-job :id="id"></edit-job>
and your EditJob component will always get the updated id.
Here is a working example.
Edit
In the code you added to your example, you are defining all of your jQuery script in Created-jobs.blade.php. That being the case, the function you wrote, getID doesn't have access to the app variable you defined in your webpack bundle because of normal javascript scoping rules. To make app accessible to your jQuery code, add it to the window.
window.app = new Vue({
el: '#app',
data:{
id: null
}
});
Secondly, though you defined the getID function, nothing calls it. It needs to be called when the links are clicked. Add this somewhere to your jQuery code in Created-jobs.blade.php (ideally in a document ready function).
$("[data-id]").on("click", getID)