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shrey.tyagi88@tcs.com Update trigger getting fired twice --Please help!!!
Hi ,
As pe salesforce order of execution Before After trigger fires twice, if a workflow field update is there after 1st fire.
Before After trigger
Workflow rule
Before After trigger
Thebeforeandaftertriggers fire one more time only if something needs to be updated.
http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_triggers_order_of_execution.htm
I have written a trrigger on opportunity to create a task after update. Opportunity also has multiple field update on it.Bexcause of this this trigger is getting fired twice and inserting two tasks.
I wanna avoid insertion of second task, please suggest me a way out here
Thanks
Shrey,
You can use TriggerHelper class to control the firing of Trigger recursively.
Please find below code : -
public class TriggerHelperClass {
private static boolean flagvalue = false;
public static boolean hasAlreadyfired() {
return flagvalue;
}
public static void setAlreadyfired() {
flagvalue = true;
}
}
and in your Trigger you can use it as below :-
trigger myTrigger on Task (before insert) {
if (!TriggerHelperClass.hasAlreadyfired()) {
---write your code here ---
TriggerHelperClass.setAlreadyfired();
}
}
All Answers
That's explained in the docs somewhere (I forget where, exactly...) Basically, a worlfkow field update will cause a secondary invocation of a trigger. You should use a static variable to see if your code has already run, and if so, abort early.
Shrey,
You can use TriggerHelper class to control the firing of Trigger recursively.
Please find below code : -
public class TriggerHelperClass {
private static boolean flagvalue = false;
public static boolean hasAlreadyfired() {
return flagvalue;
}
public static void setAlreadyfired() {
flagvalue = true;
}
}
and in your Trigger you can use it as below :-
trigger myTrigger on Task (before insert) {
if (!TriggerHelperClass.hasAlreadyfired()) {
---write your code here ---
TriggerHelperClass.setAlreadyfired();
}
}
Thanks a lot Vinit, this solves my problem!!!!!
Hi Vinit,
Does it support batch process. What i want to know is if this trigger to be fired under batch update or insert, what happens.
Thanks in advance.
Yes Suree,
It would support batch process as well.Please make sure that while calling any Apex batch class from Trigger,you are not having any future method.