In an example of a Vue wizard form I tried to add form validation with Joi. How do I set this up logically? The goal is to controll the fields before moving to the second and last page with the next() method. Because of the simplicity of this wizard form, I don't want to change to VueFormWizard. To increase the code I erased a lot of fields etc..
<template>
<div>
<div v-if="errorMessage" class="alert alert-danger" role="alert">
{{errorMessage}}
</div>
<form>
<div v-if="step ===1 ">
<div class="form-group">
<label for="title">Title</label>
<input v-model="example.title"
type="text"
class="form-control"
id="title" />
</div>
<button #click.prevent="next()">Next step</button>
</div>
<div v-if="step === 2">
<div class="form-group">
<label for="userName">Email.</label>
<input v-model="example.userName"
type="email"
class="form-control"
id="userName" />
</div>
<button #click.prevent="prev()">Go back</button>
<button #click.prevent="createExample" type="submit" class="btn btn-primary">Submit</button>
</div>
</form>
</div>
</template>
<script>
import Joi from 'joi'
const schema = Joi.object().keys({
title: Joi.string().alphanum().min(2).max(40).required(),
userName: Joi.string().email(),
})
export default {
data: () => ({
step: 1,
errorMessage: false,
example: {
title: '',
userName: ''
}
}),
watch: {
example: {
handler () {
this.errorMessage = ''
},
deep: true
}
},
methods: {
prev () {
this.step--
},
next () {
this.step++
if (this.validUser()) {
return false
}
},
createExample () {
// Post request
},
validUser () {
const result = Joi.validate(this.huismap, schema)
return true
if (result.error.message.includes('title')) {
this.errorMessage = 'Vul een titel in van min 2 karakters'
return false
}
}
}
</script>
You can make use of browser validation if you set it up like this:
<form #submit.prevent="submitMyForm">
<input v-model="form.title" required minlength="4" maxlength="20" />
<button type="submit">Submit</button>
</form>
Now your browser will prevent you from submitting the form if title is empty, if the length is less than 4 or greater than 20.
This solution can do a lot of stuff, even regex checking:
https://developer.mozilla.org/en-US/docs/Learn/HTML/Forms/Form_validation#Validating_against_a_regular_expression
However this is limited to a small set of checks and is not supported by older browsers. If you need very specific validation you'd have to use a custom solution, which is described here https://v2.vuejs.org/v2/cookbook/form-validation.html.
Related
So for form actions, I made a class to make things cleaner, but there's a problem. Whenever any errors/success messages are set in the class, Svelte does not automatically rerender the changes.
Frontend:
<script>
import Form from '#/periphs/form'
let changePasswordForm = new Form()
changePasswordForm.form.values = {
newPassword: null,
currentPassword: null
}
changePasswordForm.params.endpoint = route('api.user.settings.security.change-password')
const changePassword = () => {
changePasswordForm.execute()
}
</script>
<div class="block">
<div class="is-size-6 has-text-weight-light">Change Password</div>
<div class="field help has-text-grey-light">
1. Use special characters. (!##$%^&*)
<br>2. Do not reuse passwords.
<br>3. Do not use passwords that can be guessed. (Birthdays, names, numbers, etc).
</div>
<fieldset disabled={ changePasswordForm.form.processing }>
<div class="field">
<div class="control">
<label for="" class="label is-small">New Password</label>
<input bind:value={ changePasswordForm.form.values.newPassword } class:is-danger={ changePasswordForm.form.errors.newPassword } type="password" class="input is-small" placeholder="New Password">
</div>
{#if changePasswordForm.form.errors.newPassword}
<div class="help is-danger">{ changePasswordForm.form.errors.newPassword }</div>
{/if}
</div>
<div class="field">
<div class="control">
<label for="" class="label is-small">Current Password</label>
<input bind:value={ changePasswordForm.form.values.currentPassword } class:is-danger={ changePasswordForm.form.errors.currentPassword } type="password" class="input is-small" placeholder="Current Password Password">
</div>
{#if changePasswordForm.form.errors.currentPassword}
<div class="help is-danger">{ changePasswordForm.form.errors.currentPassword }</div>
{/if}
</div>
<div class="field">
<button on:click={ () => changePassword() } class="button is-primary is-small">Change Password</button>
{#if changePasswordForm.form.success.message}
<div class="help is-success">{ changePasswordForm.success.message }</div>
{/if}
{#if changePasswordForm.form.errors._flood}
<div class="help is-danger">{ changePasswordForm.errors._flood }</div>
{/if}
</div>
</fieldset>
</div>
Form.js:
'use strict'
import axios from "axios"
export default class Form {
constructor() {
this.form = {
processing: false,
success: {},
errors: {},
values: {}
}
this.params = {
method: 'POST',
endpoint: null,
}
}
getErrors() {
return this.form.errors
}
execute() {
/*
Before form submission, reset all errors/successes
*/
this.form.processing = true
this.form.success = {}
this.form.errors = {}
if (this.params.method == 'POST') {
axios.post(this.params.endpoint).then(r => {
/*
Handle success
*/
this.form.errors = {}
this.form.success = r.data
}).catch(e => {
/*
422
Form errors (Validation)
*/
if (e.response.status == 422) {
this.form.errors = e.response.data.errors
}
/*
429
Request timeout (Flood)
*/
if (e.response.status == 429) {
this.form.errors = { ...this.form.errors, ...{ '_flood': e.response.data.message } }
}
console.log(this.form.errors) // SHOWS ERRORS AS ITS SUPPOSED TO, BUT THIS IS NOT REPRODUCED ON THE FRONTEND
}).finally(() => {
this.form.processing = false
})
}
}
}
Whenever there is an error/success, it should show those changes on my front end, but that is not the case. Any one got any idea on how to fix this?
Reactivity only works for code within components, outside you need to use stores or events to signal changes.
i have one registration page when user renter some values ,after successfully submission the form need to be clear all the field for that i am using predefined function called reset() inside the script section ,it's not working i am unable to get where did i mistake and one more thing autocomplete="off" is also not working please help me to fix this issue.
Register.vue
<template>
<div class="main">
<div class="container">
<img src="../assets/sideImg.png" alt="notFound" />
<p>Online Book Shopping</p>
<div class="box">
<div class="headings">
<h5 class="signin">Login</h5>
<h5 class="signup">signup</h5>
</div>
<form id="myForm" #submit.prevent="handlesubmit">
<div class="fullname">
<p>FullName</p>
<input type="text" class="namebox" required v-model="FullName" autocomplete="off" pattern="[A-Za-z]{3,12}">
</div>
<div class="username">
<p>EmailID</p>
<input type="email" class="emailbox" required v-model="EmailID" pattern="^[a-z0-9._%+-]+#[a-z0-9.-]+\.[a-z]{2,4}$">
</div>
<div class="pass">
<p>Password</p>
<input :type="password_type" class="password" v-model="Password" pattern="^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[#$!%*?&])[A-Za-z\d#$!%*?&]{6,}$" required>
<i class="bi bi-eye-slash" id="togglePassword"></i>
</div>
<div class="mobile">
<p>MobileNumber</p>
<input type="tel" class="telephone" v-model="Mobile" pattern="^\d{10}$" required>
</div>
<button class="btn-section" #click="clear();" type="submit">Signup</button>
</form>
</div>
</div>
</div>
</template>
<script>
import service from '../service/User'
export default {
name: 'Register',
data() {
return {
FullName: '',
EmailID: '',
Password: '',
Mobile: '',
password_type: "password",
}
},
methods: {
togglePassword() {
this.password_type = this.password_type === 'password' ? 'text' : 'password'
},
clear(){
document.getElementById("myForm").reset();
},
handlesubmit() {
let userData = {
FullName: this.FullName,
EmailID: this.EmailID,
Password: this.Password,
Mobile: this.Mobile
}
service.userRegister(userData).then(response => {
// console.log("user Details", response);
alert("user registered successfully");
return response;
}).catch(error => {
alert("Invalid Email/Mobile number");
return error;
})
}
}
}
</script>
<style lang="scss" scoped>
#import "#/styles/Register.scss";
</style>
try this:
in your HTML
<form ref="myForm" #submit.prevent="handlesubmit">
in your handlesubmit, after it finishes
this.$refs.myForm.reset();
about autocomplete, found this:
In order to provide autocompletion, user-agents might require elements to:
Have a name and/or id attribute
Be descendants of a element
The form to have a submit button
try adding a name or id to the input.
I'm creating login validation in Vue.js but the error message is not displaying and it gives me the error:
Property or method "error" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property.
Any help?
Template:
<template>
<div class="container" width="900">
<div class="row justify-content-center" style="margin-top: 10px;">
<div class="col-5">
<div v-if="error" class="alert alert-danger" role="alert">
{{error}}
</div>
<div class="card" >
<div class="card-text">
<div class="form-group" #keyup.enter="logItIn">
<input class="form-control"
v-model="login.email"
label="Email"
placeholder="Email Address"
required
> <br>
<input class="form-control"
v-model="login.password"
label="Password"
type="password"
placeholder="Password"
required>
</div>
</div>
<button type="button" class="btn btn-secondary" #click='logItIn'>Login</button>
</div>
</div>
</div>
</div>
</template>
Script:
import axios from 'axios'
export default {
data() {
return {
login: {
email:"",
password:"",
error: ""
}
}
},
methods: {
async logItIn() {
try {
axios.post('https://odevin-api.herokuapp.com/login',this.login)
.then(response => {
console.log(response)
let newToken=response.data.response.token;
window.token=newToken;
let user=response.data.response.user; //response
localStorage.setItem('token',newToken);
localStorage.setItem('user',JSON.stringify(user));
window.axios.defaults.params={api_token:newToken}
// Event.$emit('login',user);
this.$router.push('/');
});
} catch(e) {
this.error = 'invalid user name or password';
}
}
}
}
you referenced {{ error }} in your template but in your data object, error is a property of login object. so vue can't find it properly.
either change the usage in your template to {{ login.error }} or define it in your data object like this:
data() {
return {
error: '',
login: {
email: '',
password: '',
},
}
}
I want to re-use a form component through my website, but the submit button will have to handle different things every time (display different data, depending which page is calling the form-component)
I'm a little bit new to paying around with Vue components and passing data between them, up until now I did messy one-page apps.
My current plan is have the form get the inputs/filters (from the form component), and when clicking submit, it should send this data (somehow?) to the element that called it - and will know how to handle it to the specific case from where it was called. I hope this is the right approach to this kind of scenario (?).
Is my plan a proper use of Vue / a proper way to submit a form from an external form-component?
In what way do I trigger the submit to send data / run a method outside of my DashboardForm.vue component?
How do I send fetched data of DashboardForm.vue component from ReportType1.vue and re-use this functionality in ReportType2.vue.
This is my Vue Form component (DashboardForm.vue):
<template>
<div class="row">
<div class="col-12">
<div class="card">
<div class="card-body">
<form id="mainForm" class="form-material row" method="POST">
<div class="" id="date-range">
<datepicker v-model="startDate" input-class="form-control inputDate" placeholder="Start Date" required></datepicker>
<div class="input-group-append">
<span class="input-group-text b-0 text-white"> to </span>
</div>
<datepicker v-model="endDate" input-class="form-control inputDate" placeholder="End Date" required></datepicker>
<input type="button" class="btn btn-info waves-effect waves-light" v-on:click="groupFilterDisplay(true);" value="Filter by Group"/>
<!-- <input type="button" id="submit-btn" class="btn btn-success waves-effect waves-light" v-on:click="loadNew" value="Submit"/> -->
<input type="button" id="submit-btn" class="btn btn-success waves-effect waves-light" value="Submit"/>
</div>
</form>
</div>
</div>
</div>
<transition name="fade">
<div id="groupFilter" class="popupGroupFilter" v-if="groupFilter">
<div id="filterArea">
<input type="text" v-model="searchGroupInput" placeholder="Search" class="gfSearch">
<span class="gfTitle">Filter by Group</span>
<hr>
</div>
<div class="ulTree">
<ul>
<tree_item class="item" v-bind:model="groupTree"></tree_item>
</ul>
</div>
<div v-on:click="applyGroupFilter();" class="gfClose gfApply"><span>✔ Apply</span></div>
<div v-on:click="groupFilterDisplay(false);" class="gfClose"><span>X Close</span></div>
</div>
</transition>
</div>
</template>
<script>
// import { GF } from '../mixins/GF.js';
export default {
name: 'DashboardForm',
// mixins: [GF],
data() {
return {
groupTree: window.groups,
searchGroupInput: '',
searchGroupArray: [],
groupFilterApplied: false,
groupFilterBackup: [],
selectedIds: [],
groupFilter: false,
startDate: null,
endDate: null,
mode: 0,
}
},
props: {
options: Array
},
watch: {
'searchGroupInput': function (newVal, oldVal) {
this.groupTree = this.searchGroupResult();
}
},
methods: {
recurseGroups: function (arr, action) {
},
applyGroupFilter: function () {
},
groupFilterDisplay: function (display) {
},
searchGroupResult: function () {
},
fetchGroupIds: function () {
}
}
};
</script>
This is the component that uses the DashboardForm for example (
ReportType1.vue):
<script>
import DashboardForm from "../tools/DashboardForm.vue";
export default {
components: {
DashboardForm
},
data() {
return {
};
},
created() {
},
mounted() {
},
destroyed() {
},
watch: {
},
methods: {
}
}
</script>
<!-- Template -->
<template>
<div>
<!-- Form -->
<DashboardForm/>
<!-- form result -->
<div id="resultContainer"> <datatable/> </div>
</div>
</template>
Okay if I understood you well, we are trying to build a reusable form component.
I will give you a quick overview of how VUE components communicate.
The component takes its necessary inputs using the props.
The component inner HTML can be passed from its user by using slot.
The component fire events to tell its user that there is something happened inside me.
Example of the three cases:
Your component my-form template:
<form>
<div class="row">
<slot></slot>
</div>
<div class="row">
<div class="col-12">
<button type="button" class="btn btn-default" #click="onSubmit"></button>
<button v-if="hasReset" class="btn btn-danger" #click="onReset"></button>
</div>
</div>
</form>
Your component js file:
export default {
name: 'my-form',
data() {
return {
}
},
props: {
reset: boolean
},
computed: {
hasReset: function(){
return this.reset;
}
}
methods: {
onSubmit: function(){
let data = { "name": "dummy data" };
this.$emit("submit", data);
},
onReset: function(){
let data = { "name": "" };
this.$emit("reset", data);
}
}
}
After that, you can use my-form component as below:
<my-form :reset="formHasReset" #submit="onFormSubmit" #reset="onFormReset">
<input class="col-12" type="text" name="name">
<input class="col-12" type="text" name="username">
<input class="col-12" type="password" name="password">
<input class="col-12" type="email" name="email">
</my-form>
And the javascript is:
data(){
formHasReset: true
},
methods: {
onFormSubmit: function(data){
console.log(data.name); //Should give you 'dummy data'
},
onFormReset: function(data){
console.log(data.name); //Should give you ''
}
}
I hope it is clear now for you :).
I am trying to validate my checkboxes to ensure that a user clicks at least one checkbox. I am getting checkbox Names from the database. Can anyone solve this please.
$(function(){
$("#userFrm").validate({
rules: {
Item1: {
required: true,
},
},
messages: {
Item1: "Check atleast one box",
}
});
}
<form class="form-horizontal" action="" method="post" name="groupFrm" id="groupFrm">
<div class="control-group">
<label class="control-label">
Access Permission
<span class="error">*</span>
</label>
<div class="controls">
<div class="text-group">
{section name=source loop=$source}
<input type="checkbox" name="option1[]" id="Item1" class="first" {if in_array($source[source].id,$permission_user,true)} checked="checked"{/if} value="{$source[source].id}" />
{$source[source].mod_name}
{/section}
</div>
</div>
</div>
<div class="form-actions">
<input type="submit" name="edit_permission" id="edit_permission" value="Update" class="btn btn-success " onclick="validate()">
</div>
</form>
You have use custom validation code to validate check box.
Try this.
$.validator.addMethod('yourRuleName', function (val, elm, param) {
//Validation code Here
return valid;
}, 'Your error message here');
$('#userFrm').validate({
rules: {
item1: {
yourRuleName: true
}
}
});
This will return true if at least one was checked:
$("input[type=checkbox]:checked").length>0
Or, this will count only the checked checkboxes within that form of yours:
$("#groupFrm:checkbox:checked").length>0