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Apex Programming – Safe Navigation Operator

Sometimes Apex throws an attempt to de-reference a null object when trying to access an object in this way

String prospectPhone = appointment.Prospect__r.Phone__c;

this exception happens when my appointment doesn’t have a Prospect assigned and it tries to retrieve a Phone from a null Prospect and Apex throws an exception.

It is annoying….. right?

Now with the Safe Navigation Operator, it’s possible to avoid this kind of exception.

How is it possible…..?

See the updated code

String prospectPhone = appointment.Prospect__r?.Phone__c;

we use “?.” instead of “.”, this way, we check that Prospect__c is not equal to null in the appointment, if this is true, it will return Phone.

If it is false, it will return null, avoiding having an exception while trying to get a Phone from a null object.

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Apex Programming – Null Coalescing Operator

Do you know that you can simplify the use of the ternary operator while checking null values in Apex programming?

Previously, we had to write this whole syntax for the ternary operator to do an assignment

fullName =  patient.fullName != null ? patient.fullName : "TBD";

Now, it is simplified using the Null Coalescing Operator

fullName = patient.fullName ?? "TBD";

this binary operator ?? will check if the left-hand side value is not equal to null and will return that if it is true. OR it will return the right-hand side value of the operator.

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Create Salesforce Custom Object using Apex Class

Custom Objects and Custom fields in Salesforce

I recently got this requirement to create a custom object from Apex.
Custom objects, fields, permissions, and all other configurations can be done using an Apex class.

MetadataServiceDownload
MetadataServiceTestDownload
CreateCustomObjectDownload
  • Download the provided files
  • Create the Apex class ‘MetadataService.cls’ and its Test Class ‘MetadataServiceTest.cls.’
  • Create a new Apex class, ‘CreateCustomObject.cls.’

Execute the code in execute anonymous window to create the custom object.

CreateCustomObject.creatObj();

Try to utilize the other methods from the class as well.

Yeshas Konduru
Date 04/11/2023

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Deleting Apex Classes / Apex Triggers from Production using Workbench

This is a rare scenario which we might face when not using any IDE or Source Control as part of the Salesforce Development.

In order to Delete Apex Classes / Apex Triggers from Production directly using Workbench, Follow the steps from this post and complete your task efficiently.

  1. Open Notepad
  2. Copy the below text and save it as “package.xml” (All files).
    (Update the Version number accordingly)
<?xml version="1.0" encoding="UTF-8"?>
<Package xmlns="http://soap.sforce.com/2008/04/metadata">
<version>50.0</version>
</Package>

3. Create another file, copy the below text and save it as “destructiveClasses.xml” (All files).
(Update the Version number accordingly)

<?xml version="1.0" encoding="utf-8"?>
<Package xmlns="http://soap.sforce.com/2008/04/metadata">
<types>
        <members>Class1</members>
	<members>Class2</members>	
	<name>ApexClass</name>
</types>
<types>
        <members>Trigger1</members>
	<members>Trigger2</members>	
	<name>ApexTrigger</name>
</types>
<version>50.0</version>
</Package>

The above file is based on assumption that you want to delete 2 Apex Classes and 2 Apex Triggers. Adjust based on your requirement.

Note: File names should be as mentioned in Point 2 and Point 3

4. Create a new folder with Name: “deleteClasses” and Drag & Drop the above 2 files.

5. Open the folder and Select those 2 files > Right Click and Select “Send To Compressed Folder“

6. Name the Compressed folder as “package.zip“

7. Open Workbench > Login with Org Credentials

8. Click on Migrate Tab and Choose Deploy

9. After clicking on Deploy
Select Check Only (For Validation before deployment)
Rollback On error
Single Package
RunLocalTests

10. If the validation is Success, Uncheck the “Check only” checkbox and continue the deployment.

– Chandra [03/02/2021]

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Salesforce Spring ’21 Highlights / KeyPoints / Non-Lightning

Protect Users from Insecure Downloads in Chrome

Broken Images, error results, error in attachments that are being hosted on a non-secure HTTP page.

We need to make sure that all the connections to and from Salesforce are HTTPS.

Build Customer Trust with the Error Handler System Dialog (Chat Bot)

This feature will be helpful in handling the errors that are occurred after initiated ChatBot. A more detailed description of errors for handling as required.

Refer the security URL in static resources

To maintain security, maintain the URLs in the Static Resources and refer in code.

View All, Modify All, Edit, and Delete Object Permissions Removed for Guest Users

 Need to check if the Guest User profile has the Permissions to Create, Read, Update Permissions on the related Objects

Obsolete Permissions from Guest User Profiles Were Removed

Permissions which are not tied to any App are removed from the Guest user Profile.

Guest Users can only have Create and Read only object permissions

Mixed Content Downloads Blocked in Google Chrome

An example of a mixed content download is placing a link to an HTTP site on a Salesforce HTTPS page. This is related to Insecure downloads in Chrome.

Convert the Read Only Standard Profile to a Custom Profile (Update in Summer ‘21)

 This update converts the Read Only standard profile to a custom profile. After the update is enforced, you can edit permissions in this profile as your business needs require.

The Read Only Profile Is No Longer Available in New Salesforce Orgs

Salesforce orgs created in Spring ’21 and later don’t have the Read Only standard profile.

Enable HTTPS on Your Domains

Needs to redirect the public site HTTP URLs to HTTPS

Make sure to check all the sites and Sessions settings – The checkbox Require secure connections (HTTPS) for all third-party domains should be checked.

Chandra V – 01/11/2021

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How to resolve? This page has an error: Sorry to Interrupt

This page has an error. You might just need to refresh it. AuraClientService.postProcess: error in processing [Maximum call stack size exceeded].

As per the document, it is recommended to use different names for the client side and server side methods/actions.

Use unique names for client-side and server-side actions in a component. A JavaScript function (client-side action) with the same name as a server-side action (Apex method) can lead to hard-to-debug issues.

So all you need to do here is, change your client-side controller’s method getAccountRecords to something like getAccountRecordsData.

–Yeshas K.

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Deleting Related Records

The delete operation supports cascading deletions. If you delete a parent object, you delete its children automatically, as long as each child record can be deleted.

For example, deleting the account you created earlier (SFDC Account) will delete its related contact too.
Execute this snippet in the Anonymous Apex window of the Developer Console.

Account[] queriedAccounts = [
SELECT Id
FROM Account 
WHERE Name='SFDC Account'
];
delete queriedAccounts;

Check the accounts and contacts in your org.
You’ll see that both the account and its related contact were deleted.

– Yeshas K