Update count and limit

1. Update record count with where clause
2. Add records with per page

Author: Sarveshgithub

main/default/classes/RelatedList.cls

@@ -4,10 +4,10 @@ public with sharing class RelatedList {
 		return Database.query(soql);
 	}
 
-	@AuraEnabled(cacheable = true) public static Integer countRecords(String objectName) {
-		if(String.isNotEmpty(objectName)) {
-			return database.countQuery('SELECT count() FROM ' + objectName);
+	@AuraEnabled(cacheable=true) public static Integer countRecords(String countSOQL) {
+		if (String.isNotEmpty(countSOQL)) {
+			return database.countQuery(countSOQL);
 		}
 		return 0;
-	}
+  	}	
 }

main/default/classes/RelatedList_Test.cls

@@ -17,7 +17,7 @@ public with sharing class RelatedList_Test {
         User testUser = [Select id from user where id = :UserInfo.getUserId()];
         Test.startTest();
         System.runAs(testUser){
-            RelatedList.countRecords('Contact');
+            RelatedList.countRecords('Select count() FROM Contact LIMIT 1');
             RelatedList.countRecords(null);
         }
         Test.stopTest();

main/default/lwc/lwcRelatedList/lwcRelatedList.js

@@ -46,7 +46,7 @@ export default class LightningDatatable extends NavigationMixin(
     });
     this.columns = cols;
     this.buildSOQL();
-    countRecords({ objectName: this.objectName }).then((result) => {
+    countRecords({ countSOQL: this.buildCountSOQL() }).then((result) => {
       this.totalRows = result;
     });
     this.fetchRecords();

main/default/lwc/lwcRelatedList/lwcRelatedList.js-meta.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
-    <apiVersion>48.0</apiVersion>
+    <apiVersion>49.0</apiVersion>
     <isExposed>true</isExposed>
     <targets>
         <target>lightning__RecordPage</target>
@@ -14,6 +14,7 @@
             <property name="columns" type="String" required="true" label="Enter Columns JSON"/>
             <property name="relatedFieldAPI" type="String" default="" label="Enter Related field API Name"/>
             <property name="whereClause" type="String" default="" label="Enter WHERE clause"/>
+            <property name="limit" type="String" default="10" label="Enter number of records to display on screen"/>
         </targetConfig>
       </targetConfigs>
 </LightningComponentBundle>