<template> <DocSectionText v-bind="$attrs"> <p><a href="https://vee-validate.logaretm.com/v4/">VeeValidate</a> is a popular library for handling forms in Vue.</p> </DocSectionText> <div class="card flex justify-content-center"> <form @submit="onSubmit" class="flex flex-column align-items-center gap-2 w-full md:w-20rem"> <TreeSelect v-model="value" :class="['w-full md:w-20rem', { 'p-invalid': errorMessage }]" aria-describedby="text-error" :options="nodes" placeholder="Select Item" /> <small id="text-error" class="p-error">{{ errorMessage || ' ' }}</small> <Button type="submit" label="Submit" /> </form> </div> <DocSectionCode :code="code" :dependencies="{ 'vee-validate': '4.8.2' }" :service="['NodeService']" /> </template> <script> import { useToast } from 'primevue/usetoast'; import { useField, useForm } from 'vee-validate'; import { NodeService } from '/service/NodeService'; export default { setup() { const { handleSubmit, resetForm } = useForm(); const { value, errorMessage } = useField('value', validateField); const toast = useToast(); function validateField(value) { if (!value) { return 'Value is required.'; } return true; } const onSubmit = handleSubmit((values) => { if (values.value) { toast.add({ severity: 'info', summary: 'Form Submitted', detail: 'The form is successfully submitted.', life: 3000 }); resetForm(); } }); return { value, handleSubmit, onSubmit, errorMessage }; }, data() { return { nodes: null, code: { basic: ` <div class="card flex justify-content-center"> <form @submit="onSubmit" class="flex flex-column align-items-center gap-2 w-full md:w-20rem"> <TreeSelect v-model="value" :class="['w-full md:w-20rem', { 'p-invalid': errorMessage }]" aria-describedby="text-error" :options="nodes" placeholder="Select Item" /> <small id="text-error" class="p-error">{{ errorMessage || ' ' }}</small> <Button type="submit" label="Submit" /> </form> </div> `, options: ` <template> <div class="card flex justify-content-center"> <form @submit="onSubmit" class="flex flex-column align-items-center gap-2 w-full md:w-20rem"> <TreeSelect v-model="value" :class="['w-full md:w-20rem', { 'p-invalid': errorMessage }]" aria-describedby="text-error" :options="nodes" placeholder="Select Item" /> <small id="text-error" class="p-error">{{ errorMessage || ' ' }}</small> <Button type="submit" label="Submit" /> </form> <Toast /> </div> </template> <script> import { useToast } from 'primevue/usetoast'; import { useField, useForm } from 'vee-validate'; import { NodeService } from '@/service/NodeService'; export default { setup() { const { handleSubmit, resetForm } = useForm(); const { value, errorMessage } = useField('value', validateField); const toast = useToast(); function validateField(value) { if (!value) { return 'Value is required.'; } return true; } const onSubmit = handleSubmit((values) => { if (values.value) { toast.add({ severity: 'info', summary: 'Form Submitted', detail: 'The form is successfully submitted.', life: 3000 }); resetForm(); } }); return { value, handleSubmit, onSubmit, errorMessage }; }, data() { return { nodes: null }; }, mounted() { NodeService.getTreeNodes().then((data) => (this.nodes = data)); } }; <\/script> `, composition: ` <template> <div class="card flex justify-content-center"> <form @submit="onSubmit" class="flex flex-column align-items-center gap-2 w-full md:w-20rem"> <TreeSelect v-model="value" :class="['w-full md:w-20rem', { 'p-invalid': errorMessage }]" aria-describedby="text-error" :options="nodes" placeholder="Select Item" /> <small id="text-error" class="p-error">{{ errorMessage || ' ' }}</small> <Button type="submit" label="Submit" /> </form> <Toast /> </div> </template> <script setup> import { ref, onMounted } from 'vue'; import { useToast } from 'primevue/usetoast'; import { useField, useForm } from 'vee-validate'; import { NodeService } from '@/service/NodeService'; const { handleSubmit, resetForm } = useForm(); const { value, errorMessage } = useField('value', validateField); const toast = useToast(); const nodes = ref(null); onMounted(() => { NodeService.getTreeNodes().then((data) => (nodes.value = data)); }); function validateField(value) { if (!value) { return 'Value is required.'; } return true; } const onSubmit = handleSubmit((values) => { if (values.value) { toast.add({ severity: 'info', summary: 'Form Submitted', detail: 'The form is successfully submitted.', life: 3000 }); resetForm(); } }); <\/script> ` } }; }, mounted() { NodeService.getTreeNodes().then((data) => (this.nodes = data)); } }; </script>