How do you write an Apex trigger?
After triggers can be used to access field values that are set by the database, and to affect changes in other records. Syntax to create sample trigger: Use below syntax to create trigger. trigger on ObjectName () { // you can write your code here. }
What is the best practice to write trigger in Salesforce?
Apex Trigger Best Practices
- Best Practice #1: Bulkify Your Code. Bulkifying Apex code ensures that the code that you are running is able to effectively handle more than a single record at once.
- Best Practice #2: Avoid SOQL Queries or DML statements inside FOR Loops.
- Best Practice #3: Bulkify Helper Methods.
What do you need to know about triggers in apex?
Apex triggers enable you to perform custom actions before or after changes to Salesforce records, such as insertions, updates, or deletions. A trigger is Apex code that executes before or after the following types of operations:
Is it good to have handler class in apex?
Also keep in mind that while working on the Apex trigger, it’s good to have that helper/handler class so we can call it from the trigger. Having handler/helper classes will help make trigger code reusable as well more manageable. One more thing to avoid: hardcoding Salesforce ID in a class or trigger.
What are the best practices for Apex code?
Store important details, including which class and line has thrown an error, to make necessary debugging easier. Another important best practice surrounding Apex Code is the need to follow a proper naming convention. For example, if we are writing a trigger on a case object, then the trigger name should be CaseTrigger.
When to use apex to execute custom logic?
To execute custom apex logic when a DML operation is performed. To implement functionality that can’t be implemented using existing workflows flows and process builders functionality. To setup email services, you need to include processing the contents, headers, and attachments of email using apex code.