Apex Triggers - 46 (Deloitte Interview Scenario)

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[@diobrando1253]

Why cant we take Map? Store accountId in ID and country in string? then get the string at the end? is this approach fatal>? pls let me know

[@arunimakashyap6207]

Great video and great channel for learning😊

[@sfdcninjas]

Thanks

[@diobrando1253]

I think we shd also make sure if I make account country blank contacts country should get blank right? Hence null check not needed on new acc country

[@yashwanthkumar4890]

Sir, what if there are more than 10k contact records from the SOQL query? How do we handle that scenario?

[@kumareshghosh5593]

On line 33: you are double checking accMap if it contains accountId or not, already you checked in the SOQL above in 26. Please let me know if I am wrong.
PS: very similar trigger I was asked in TCS

[@sfdcninjas]

Hey Kumaresh, it's your call whether to add that extra check or not. But I strongly recommend doing it for an added layer of safety.

[@arnabmukherjee9225]

Can we use a list to store the accoundids and when we're querying on the contact object we can user Account.County__c to get the country field value from the account object.
Please correct me if i am wrong !!

[@sfdcninjas]

Yes we can use list to store account ids but it is better to use set as we cannot have duplicates in it

[@goldylodhi2116]

Nice explanation sir 🎉

[@sfdcninjas]

Thanks

[@saikrishna2972]

Just wondering this can be implemented with formula as well right 🤔 . Why to code ?

[@bhaskarjha2736]

Correct, Interviewer may ask these kind of questions, to check skills & approach

[@biswaranjanpratihari858]

SIr , can't we use relationship soql here?

[@user-cy4vt5fu6b]

please make video on below scenario
when lead is created and after 48 hours still that lead status is new then send mail to record owner and record owner manager .

[@sfdcninjas]

Sure i will create a video on it , can please tell me is this scenarios asked in some company?

[@RahulKumar-fk9iw]

what was the total experience of the candidate?

[@sfdcninjas]

2-3 yrs

[@dikshapandey8590]

This can easily be done by flow as well

[@SachinM1985]

Hi Sir, you told that you will make video on usage of Map, we are waiting for it. Please 🙏

[@Leo_music2684]

Please mee too.. Many of times I get confused why to make things complicated when we can use List instead of Map...and why do we use Map and when to use it in first place is something I never understood....Please help us in making a detail video on Maps..

[@sfdcninjas]

in next video i am going to explain it don’t worry and if you will be able to understand it then please share it.

[@SachinM1985]

Thank you sir

[@rajenderv5442]

your voice not clear and your explanation very hurry please explain slowly

[@srikanthsareddy54]

Ur explanation is worst

[@sfdcninjas]

Please tell me how can i improve

[@bhaskarjha2736]

trigger TriggerOnAccount on Account(after update){
if(Trigger.isUpdate && Trigger.isAfter){
AccountTriggerHandler.afterUpdate(Trigger.newMap,Trigger.oldMap);
}
}
public class AccountTriggerHandler{
public static void afterUpdate(Map newAccMap,Map oldAccMap){
Map updatedRegionAccountMap = new Map();
for(Account acc : newAccMap.values()){
if(acc.Region__c!=null && acc.Region__c != oldAccMap.get(acc.Id).Region__c){
updatedRegionAccountMap.put(acc.Id,acc);
}
}
if(!updatedRegionAccountMap.isEmpty()){
updateRegionOnContacs(updatedRegionAccountMap);
}
}
public static updateRegionOnContacs(Map updatedRegionAccountMap){
Map contactMap = new Map([Select Id, Region_On_Account__c from Contact Where AccountId IN :updatedRegionAccountMap.keySet()]);
for(Contact con : contactMap.values()){
con.Region_On_Account__c = updatedRegionAccountMap.get(con.AccountId).Region__c;
}
update contactMap.values();
}
}