Hey guys, today in this post we are going to learn about How to How to fetch/customize the custom metadata and display the list of metadata in lightning component using Apex class in Salesforce Lightning Web Component — LWC .
What are Custom Metadata Types?
Custom metadata is customizable, deployable, packageable, and upgradeable application metadata. First, you create a custom metadata type, which defines the form of the application metadata. Then you build reusable functionality that determines the behavior based on metadata of that type. To know more, Click here about custom metadata
Files we used fetch/customize the custom metadata and display the list in LWC
lwcFetchCustomMetaData.html | LWc HTML File | Template HTML file to create fetch the list of custom metadata in lwc |
lwcFetchCustomMetaData.js | LWC JavaScript File | Itβs hold a javascript and import the custom metadata using Apex |
lwcFetchCustomMetaData.js-meta.xml | XML Meta File | It is used to where this lightning web component file you want to display as like lightning__AppPage, lightning__RecordPage, lightning__HomePage. |
lwcCustomMetaDataCtrl.cls | Apex Controller | It’s hold Apex class method to return the list of custom metadata using apex method |
Final Output
You can download file directly from github by Click Here.
Other related post that would you like to learn in Salesforce
How to get Custom Metadata in Lightning Web Component Using Apex class in Salesforce
Custom Metadata provides a great flexibility to developer and admins to write and create a dynamic functionality.
- Find the below steps
Create Lightning Web Component HTML
Step 1:- Create Lightning Web Component HTML β‘ lwcFetchCustomMetaData.html
SFDX:Lightning Web Component β‘ New β‘ lwcFetchCustomMetaData.html
lwcFetchCustomMetaData.html [Lightning Web Component HTML]
<template>
<lightning-card>
<div class="slds slds-p-around--medium">
<h3 class="slds-text-heading_medium"><lightning-icon icon-name="custom:custom21" size="small"></lightning-icon> <strong style="color:#270086; font-size:13px;"> How to Fetch Custom Meta Data in Lightning Web Component (LWC) </strong></h3>
<lightning-datatable
key-field="Id"
data={records}
columns={columns}
hide-checkbox-column="true">
</lightning-datatable>
</div>
<br/><br/>
<!--Start RelatedTopics Section-->
<div style="border:1px #ddd solid; padding:10px; background:#eee; margin:40px 0;">
<p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/05/thumbsUpLike.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:16px; font-style:italic; display:inline-block; margin-right:5px;">Don't forget to check out:-</span><a href="https://www.w3web.net/" target="_blank" rel="noopener noreferrer" style="text-decoration:none;" data-aura-rendered-by="440:0">An easy way to learn step-by-step online free Salesforce tutorial, To know more Click <span style="color:#ff8000; font-size:18px;" data-aura-rendered-by="442:0">Here..</span></a></strong></p>
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<div style="display:block; overflow:hidden;">
<div style="width: 50%; float:left; display:inline-block">
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</ul>
</div>
<div style="width: 50%; float:left; display:inline-block">
<ul style="list-style-type: square; font-size: 16px; margin: 0 0 0 54px; padding: 0;">
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</ul>
</div>
<div style="clear:both;"></div>
<br/>
<div class="youtubeIcon">
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</div>
</div>
</div>
<!--End RelatedTopics Section-->
</lightning-card>
</template>
</lightning-card>
</template>
Create Lightning Web Component Javascript
Step 2:- Create Lightning Web Component Javascript β‘ lwcFetchCustomMetaData.js
SFDX:Lightning Web Component β‘ New β‘ lwcFetchCustomMetaData.js
lwcFetchCustomMetaData.js [LWC JavaScript File]
import { LightningElement, wire } from 'lwc';
import fetchMetaListLwc from '@salesforce/apex/lwcCustomMetaDataCtrl.fetchMetaListLwc';
const COLUMNS = [
{ label: 'Label', fieldName: 'MasterLabel' },
{ label: 'Student Name', fieldName: 'Student_Name__c' },
{ label: 'Phone', fieldName: 'Phone__c' },
{ label: 'Email', fieldName: 'Email__c' },
{ label: 'Country', fieldName: 'Country__c' },
{ label: 'City', fieldName: 'City__c' },
];
export default class LwcFetchCustomMetaData extends LightningElement {
records;
wiredRecords;
error;
columns = COLUMNS;
draftValues = [];
@wire( fetchMetaListLwc )
wiredRecs( value ) {
this.wiredRecords = value;
const { data, error } = value;
if ( data ) {
this.records = data;
this.error = undefined;
} else if ( error ) {
this.error = error;
this.records = undefined;
}
}
}
Create Lightning Web Component Meta XML
Step 3:- Create Lightning Web Component Meta XML β‘ lwcFetchCustomMetaData.js-meta.xml
SFDX:Lightning Web Component β‘ New >> lwcFetchCustomMetaData.js-meta.xml
lwcFetchCustomMetaData.js-meta.xml [LWC Meta Data XML]
<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
<apiVersion>45.0</apiVersion>
<isExposed>true</isExposed>
<targets>
<target>lightning__AppPage</target>
<target>lightning__RecordPage</target>
<target>lightning__HomePage</target>
</targets>
</LightningComponentBundle>
Create Apex Class Controller
Step 4:- Create Apex Class : lwcCustomMetaDataCtrl.cls
From Developer Console β‘ File β‘ New β‘ Apex Class
lwcCustomMetaDataCtrl.cls [Apex Class Controller]
public WITH sharing class lwcCustomMetaDataCtrl {
@AuraEnabled( cacheable=TRUE )
public static List < Student_Basic_Detail__mdt > fetchMetaListLwc() {
List < Student_Basic_Detail__mdt > fetchMeta = [ SELECT Id, MasterLabel, City__c, Country__c, Email__c, Phone__c, Student_Name__c FROM Student_Basic_Detail__mdt ];
RETURN fetchMeta;
}
}
Further post that would you like to learn in Salesforce
What is a custom metadata type in Salesforce?
Custom Metadata Types, you can customize, deploy, package, and upgrade application metadata that you design yourself.
What is custom metadata types?
A custom metadata type is an object that is used to define the structure for application metadata.
What is the difference between custom settings and custom object?
Custom Settings are a special type of Custom Object. Custom Objects are record tables, while Custom Settings are configuration tables.
Can we deploy custom setting?
Yes, you can deploy the custom Settings using changeset or any other migration tool using the CustomObject metadata.
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