Lightning Web コンポーネントを作成するサンプル
環境
salesforce
1.parent.js
Lightning データサービスを使用して取引先オブジェクトを照会します。
サンプルコード
import { LightningElement, api, wire } from "lwc"; import { getRecord, getFieldValue } from "lightning/uiRecordApi"; import FIELD_NAME from "@salesforce/schema/Account.Name"; import FIELD_OWNER_NAME from "@salesforce/schema/Account.Owner.Name"; import FIELD_PHONE from "@salesforce/schema/Account.Phone"; import FIELD_INDUSTRY from "@salesforce/schema/Account.Industry"; export default class Parent extends LightningElement { @api recordId; @wire(getRecord, { recordId: "$recordId", fields: [FIELD_NAME, FIELD_INDUSTRY], optionalFields: [FIELD_PHONE, FIELD_OWNER_NAME] }) account; get name() { return getFieldValue(this.account.data, FIELD_NAME); } get phone() { return getFieldValue(this.account.data, FIELD_PHONE); } get industry() { return getFieldValue(this.account.data, FIELD_INDUSTRY); } get owner() { return getFieldValue(this.account.data, FIELD_OWNER_NAME); } sayHi() { let cmp = this.template.querySelector("c-child"); cmp.sayHi(); } }
2.parent.js-meta.xml
取引先のレコード詳細ページでこのコンポーネントを使用可能になります。
<?xml version="1.0" encoding="UTF-8"?> <LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata"> <apiVersion>58.0</apiVersion> <isExposed>true</isExposed> <targets> <target>lightning__RecordPage</target> </targets> <targetConfigs> <targetConfig targets="lightning__RecordPage"> <objects> <object>Account</object> </objects> </targetConfig> </targetConfigs> </LightningComponentBundle>
3.parent.html
条件に応じて取引先情報かエラーのいずれかを表示します。
<template> <lightning-card title="Summer '23 Maintenance"> <lightning-button slot="actions" label="Say Hi" onclick={sayHi}></lightning-button> <template if:true={account.data}> <div class="slds-m-around_medium"> <p>Account Name: {name}</p> <p>Industry: {industry}</p> <p>Phone: {phone}</p> <p>Owner: {owner}</p> </div> </template> <template if:false={account.data}> <div class="slds-m-around_medium slds-text-color_destructive">An error occurred while retrieving data</div> </template> <c-child></c-child> </lightning-card> </template>