StandardSetController in Lightning Web component for List View : sanketthoughts

StandardSetController in Lightning Web component for List View
by: sanketthoughts
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Visualforce comes with a very powerful feature StandardSetController class which gives you the ability to fetch records selected by end user on standard list view. This is a limitation in Lightning Web Component but there is a workaround to get the record Ids of the record selected by end user on standard list view with the help of Lightning Flow and List View URL Button in Salesforce and then pass it to Lightning Web Component.

Workaround – Gettin record Ids of selected record from standard list view in Lightning Web Component via Lightning Flow

We are going to create one Lightning Flow where our Lightning Web Component will be called inside it. The Lightning Flow will be invoked via URL button on standard list view.

The Idea of getting selected record Ids from Standard List View is basically derived from this Blog. My solution extends it from Flow to Lightning Web Component.

Create Lightning Web Component – massActionViaFlow

We are going to create Lightning Web Component with name massActionViaFlow which can invoked from Lightning Flow.

massActionViaFlow.html

We are iterating over the array of ids received from Lightning Flow using for:each iterator.

<template>
    <lightning-card title="HelloForEach" icon-name="custom:custom14">
        <ul class="slds-var-m-around_medium">
            <template for:each={ids} for:item="id">
                <li key={id}>{id}</li>
            </template>
        </ul>
    </lightning-card>
</template>

massActionViaFlow.js

The Lightning Web Component receives the ids as string with each value comma separated. The ids are converted into an array of Ids from String using split method and filter method in JavaScript inside connectedCallback method.

import { LightningElement, api } from 'lwc';

export default class MassActionViaFlow extends LightningElement {
    @api ids;
    @api objectApiName;
    connectedCallback() {
        if (this.ids) {
            this.ids = this.ids.split(',').filter(function (e) {
                return e != null && e != '';
            });
        }
    }
}

massActionViaFlow.js-meta.xml

The xml file of the component uses target as

lightning__FlowScreen and exposed the ids property to flow so that it can be set from their.

<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>51.0</apiVersion>
    <isExposed>true</isExposed>
    <targets>
      <target>lightning__FlowScreen</target>
    </targets>
    <targetConfigs>
        <targetConfig targets="lightning__FlowScreen">
            <property name="ids" label="ids" type="String" />
            <property name="objectApiName" label="objectApiName" type="String" />
        </targetConfig>
    </targetConfigs>
</LightningComponentBundle>

Create Lightning Flow – List View Mass Action

We are going to create flow with Name List View Mass Action. The flow will have below variables:-

1. ids – It holds all the selected record Ids value in array
2. RecordIds – This holds all the record ids separated by comma.
3. objectName – It is optionally created.

You need to follow the screenshots while creating variables:-

Variable Name – ids

Variable Name – RecordIds

Variable Name – objectName

It’s time to add the flow elements. ids variable will automatically hold the value of selected record in the form of array. We are going to run a for loop in flow so that we can create a string with all record ids separated by comma. The Lightning Flow will look like this:-

Element – IterateOverIds

For Loop Assignment

Screen Element – Lightning Web Component called here

We need to pass the value of public property of Lightning Web Component from Flow. We have already prepared one string variable to hold the record Ids.

It’s time to save your flow and activate it. Now, all you have to do is create a list button of URL type. The URL will be :-

/flow/List_View_Mass_Action?objectName=Account&retURL=/lightning/o/Account/home

The objectName variable value is being passed via URL and It can be used within Flow or can be passed to Lightning Web Component so that the solution can be extended. retURL in the URL of the button defines the finish behaviour of the flow. In this case, On click of finish button, Users will be navigated to list view of Account object.

Demo – selected record Ids in Lightning Web Component in List Views

The post StandardSetController in Lightning Web component for List View appeared first on Salesforce Diaries.

April 11, 2021 at 05:06PM
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