I am trying to solve the Trailhead Platform Developer 1 (PD1) maintenance module I am facing the following error please help me to solve it. "The correct Safe Navigation logic was not found. Your Apex code should use the Safe Navigation operator to check for null values for Account Name. Please review line 18 of the original code and recheck your code for the Safe Navigation operator."..?
@RestResource(urlMapping='/apexSecurityRest')
global with sharing class ApexSecurityRest {
@HttpGet
global static Contact doGet() {
Id recordId = RestContext.request.params.get('id');
Contact result;
if (recordId == null) {
throw new FunctionalException('Id parameter is required');
}
if (Schema.SObjectType.Contact.isAccessible()
&& Schema.SObjectType.Contact.fields.Name.isAccessible()
&& Schema.SObjectType.Contact.fields.Top_Secret__c.isAccessible()
) {
List<Contact> results = [SELECT id, Name, Title, Top_Secret__c, Account.Name FROM Contact WHERE Id = :recordId];
if (!results.isEmpty()) {
result = results[0];
if (Schema.sObjectType.Contact.fields.Description.isUpdateable()){
result.Description = result.Account.Name;
}
}
} else {
throw new SecurityException('You don\'t have access to all contact fields required to use this API');
}
return result;
}
public class FunctionalException extends Exception{}
public class SecurityException extends Exception{}
}
Hi Prashanth M,Follow this code to solve this module. you receive this error message due to the following statement "result.Description = result.Account?.Name;" @RestResource(urlMapping='/apexSecurityRest')
global with sharing class ApexSecurityRest {
@HttpGet
global static Contact doGet() {
Id recordId = RestContext.request.params.get('id');
Contact result;
if (recordId == null) {
throw new FunctionalException('Id parameter is required');
}
List<Contact> results = [SELECT id, Name, Title, Top_Secret__c, Account.Name FROM Contact WHERE Id = :recordId];
SObjectAccessDecision securityDecision = Security.stripInaccessible(AccessType.READABLE, results);
if (!results.isEmpty()) {
result = results[0];
if (Schema.sObjectType.Contact.fields.Description.isUpdateable()){
result.Description = result.Account?.Name;
}
}
else {
throw new SecurityException('You don\'t have access to all contact fields required to use this API');
}
return result;
}
public class FunctionalException extends Exception{}
public class SecurityException extends Exception{}
}
