In this episode we go over what absolutely everything you would need to know about apex triggers in Salesforce. We cover the basics, what a trigger is and why to use one, as well as more advanced concepts like trigger handlers, domain classes and siloing applications in your triggers!
Code on GitHub: github.com/Coding-With-The-Fo...
Apex Docs on Triggers: developer.salesforce.com/docs...
Apex Docs on Order of Execution: developer.salesforce.com/docs...
Kevin Ohara Trigger Framework: github.com/kevinohara80/sfdc-...
Mitch Spano Trigger Actions Framework: github.com/mitchspano/apex-tr...
Apex Common Library: github.com/apex-enterprise-pa...
My Apex Triggers Playlist: • Salesforce: Apex Triggers
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Salesforce development books I recommend:
Advanced Apex Programming: amzn.to/3lXi8to
Salesforce Lightning Platform Enterprise Architecture: amzn.to/2R0D4BQ
Mastering Salesforce DevOps: amzn.to/3lTtTRN
Apex Design Patterns Book: amzn.to/3DwqljP
Good Non-SF Specific Development Books:
Clean Code: amzn.to/35PuMDU
Clean Architecture: amzn.to/35FYo6A
Design Patterns: Elements of Reusable Object-Oriented Software Book: amzn.to/3LhvHBd
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Table of Contents:
0:00 - Intro
0:49 - What we'll cover in this video
2:26 - What is a Trigger and why use one?
5:03 - When does a Trigger fire?
8:10 - When to use a Trigger instead of a Flow?
12:59 - The difference between a before and an after trigger?
14:40 - How to create an Apex Trigger
21:01 - The differences between Apex Triggers and Apex Classes
27:50 - How to run the trigger
29:30 - How to use Trigger Context Variables
40:02 - Why you can't update trigger records in After Triggers
44:54 - How to use addError in a trigger to make custom validation rules
47:30 - Why you should never have more than one trigger per object
49:45 - When should you use async processes instead of triggers?
55:27 - Trigger Bulkification Tips and Suggestions
1:00:08 - Why you should never use more than one automation process
1:04:36 - Benchmarking the one automation process compared to combining automation processes
1:10:49 - How to prevent your trigger from hitting limits
1:15:35 - Trigger bulkification tips recap
1:20:37 - What are Trigger Handlers and Why use them?
1:25:28 - What are my suggested Trigger Handler Frameworks?
1:35:22 - What are Domain classes?
1:40:17 - How to create Domain/Trigger Silos for multiple applications in your Salesforce Org.
2:05:32 - The importance of trigger switches (turning your trigger on and off)
DISCLAIMER: The views and ideas expressed on this KZfaq channel and blog are based on past development experiences and may not always work for your particular scenarios. The advice in these videos may also become outdated as technology advances. They should be used as examples for educational purposes only. Using any shown solutions in your own org is not advisable since they are example scenarios.
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