Apex Triggers - 29 (Trigger Interview Question)

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[@chvenkatareddy5794]

Hi Can you please create trigger for the following interview question?
Task (Email__c) >> Account > Contact > (Primary_contact__c)/Email
1) There are 10 contacts on account
2) If I select any OR Create a new contact as Primary_contact__c = true && Email not blank
- then Email of particular contact should be reflected on task Email__c field. Task already there we need to update on existing task

[@sfdcninjas]

Please go through this trigger and let me know whether it is working or not
trigger UpdateTaskEmailOnPrimaryContact on Contact (after insert, after update) {
List tasksToUpdate = new List();
// Collect all the Primary Contacts with a non-blank Email
Set primaryContactIds = new Set();
for (Contact con : Trigger.new) {
if (con.Primary_contact__c && !String.isBlank(con.Email)) {
primaryContactIds.add(con.Id);
}
}
// Retrieve the related Tasks with the existing Email__c field
List existingTasks = [SELECT Id, Email__c FROM Task WHERE WhoId IN :primaryContactIds];
// Update the Email__c field on the existing Tasks
for (Task tsk : existingTasks) {
tsk.Email__c = Trigger.newMap.get(tsk.WhoId).Email;
tasksToUpdate.add(tsk);
}
// Perform the update on the affected Tasks
if (!tasksToUpdate.isEmpty()) {
update tasksToUpdate;
}
}

[@deepanshusaini665]

Hey,
can you please provide link for following code.. also for complete Trigger scenario series..
it will be very helpful for me..

[@sfdcninjas]

Hi Deepanshu it will be available very soon don’t worry

[@goldylodhi2116]

❤