How to handle trigger recursion

Question

I have two objects A(parent) and B(child) related by a lookup relationship. I need to update records in object A using data loader. There is an after update trigger on object A which updates some fields on related records of object B. On object B as well there is an after update trigger which updates a field on parent object A. How can i handle recursion.

score 2 · Answer 1 · edited Apr 13 '17 at 12:54

2

Take a look here. It besically suggests to use static variable to determine if we have to execute the trigger or not.

edited Apr 13 '17 at 12:54

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answered Sep 01 '15 at 13:11

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score 1 · Accepted Answer · answered Sep 01 '15 at 13:04

You should be using a Static variable(preferably Boolean) in an Utility class to determine the state of the run of the trigger.

So add a check at the initial of the code to look for the Static variable to be true and execute the code in Object A trigger. Before updating Object B records make the Static variable false and do the update.

So when the Object B trigger updates Object A, the Object A trigger will check for Static variable and it will be false and skip the execution(updating Object B).

Please refer cookbook here.

http://salesforce-parth.blogspot.in/2015/09/recursive-trigger-class-in-salesforce.html — Parth Thakkar, Sep 25 '15 at 16:43

How to handle trigger recursion

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