Basic of Triggers | DAY 5 Part 1 Order of Execution When & How Triggers are invoked Trigger Events Avoiding Recursive Trigger Calls www.apexhours.com/demystifying...
This video was not much basic. complexity escalated quickly....For the first time teacher in your videos kinda assumed that we would be knowing some statements in the code already which was not true...
you cannot expect that a free on-line course is going to explain every sentence and operator. Read the documentation, just search the statement you are not familiar with.
I have written a before trigger to update the contact description on contact creation as well as wrote a workflow for the same but what I have observed it is updating record from worklows not from trigger but according to the order of execution it should update the record from trigger right??
so @39:47 if we would have trigger event as before update then will the recursion not happen, its a bit confusing, so when you added a recursive check then also the trigger will be called after creating an account @41:46 am i right and it will try to insert again? Please can you clear this doubt.
Sir any suggestions which trigger scenarios are asked most of the times for fresher? Please suggest few so that i can practice them before the interview
Hi team..I am thorough follower of this channel..but sorry just because of work not able to attend live sessions..not sure if I missed 17,18 and 19 uploads..hope they will come soon..
You are doing a great job guys! I have one question. When you say I should use Triggers for Integration with External Sys. You mean in every case? For example why I shouldn't use outbound message working as a trigger to send an event to an endpoint?
Hello there, I have clarification on assignment - i)create custom object invoice with field total amount ii)create child object invoice line item with lookup relationship to invoice iii)add price field into invoice line item I have created 'invoice' object and field 'total amount' now how to create lookup relation on child object I'm confused whether we can create relationship on object, it can be created on fields only as I know or maybe something I don't know on this. can anyone plz guide.
The code presented at 41:19 on avoiding recursion has a logical inconsistency. The TestTrigger is set to run before insert, but the condition in the trigger body checks for Trigger.isAfter. This condition would never return true because the trigger itself only runs in the before context.
At 23:23 Why we have used only 'new' context variable for new value and 'oldMap' for the previous value . Instead could we have used 'old' context variable .
In Order of Execution System Validations run before "Before Triggers" but in the video it is in reverse. Please let me which one is first either before triggers or system validations.
so the order of execution is before trigger, validation, after trigger, assignment rules , workflow rules and the commit to database . Is this correct?
@@apexhours Hi, Couldn't find links for those two trails on the website given in the description of this video. Can you please provide the link here if possible ? It will be huge help. Thanks. : )
sir plz make video or guidance on projects i have complted admin and development parts ... sir plz make video on projects i need job.... i love apex hours.
My SOlution to the challenge trigger InvoiceLineItemTrigger on Invoice_Line_Item__c (after insert,after update) { //Update the SumofInvoiceItems field in Invoice object with sum of prices of its related Inv Line Items
//Get Invoice related to Invoice Line items
Set invoiceIds = new Set(); for(Invoice_Line_Item__c lineItem: Trigger.new){//IL1->I1, IL2->I1, IL3->I2, IL4-I2,IL5-I3,IL6-I4 invoiceIds.add(lineItem.Invoice__c); } System.debug('Invoice Ids'+invoiceIds);
List invoiceList = [SELECT id,Sum_of_Invoice_Line_Items__c,(SELECT id, Price__c from InvoiceLineItems__r) from Invoice__c WHERE ID IN: invoiceIds]; system.debug('invoiceList'+invoiceList);
thanks for the video...definately its a good channel for salesforce development preraration..but in this video you are not given much more knowledge about apex triggers..in this video you only explained about the question what is trigger....but actually you didnt get more examples of trigger and not explained examples as well as clearly.
This was the worst session among the others... the guy has no idea... just copy pasting codes, and exclaiming "Yup, executed" without explaining anything. Of course it will execute, you have copy-pasted a done and tested code. The English is the worst, and it was a challenge to understand what he is saying.
what else there is to explain?. The trigger sent a mail. He said the trigger will send an email and showed that it did. If there is a statement you dont understand, search for it on the documentation. And "just copy and pasting" thats like 99% of on-line courses. Thank god they don't write code live so we don't have to deal with dumb bugs and typos
My solution for assignment. trigger TotalInvoiceAmount on Invoice_Line_Item__c (after insert) {
Map UniqueInvoiceToUpdate = new map(); // To maintain unique sobject to be updated Map TotalAMount = new Map(); // To maintain the updated amount of each invoice sobject
ListInvoiceToUpdate = new List(); // final list to perform dml update operation Invoice__c ParentInvoice;
for (Invoice_Line_Item__c currentInvoiceItem : Trigger.New) {
ParentInvoice = [select id, Total_Amount__c from Invoice__c where Id = :currentInvoiceItem.Invoice__c LIMIT 1][0];
// Check if we have updated total value of invoice in previous iterations: if (TotalAmount.get(ParentInvoice.Id) != null) {
// if yes, add the current amount of invoice line item to the previous updated invoice object. // Not that, we have not commit to database yet. Hence we are retrieving updated amount from map and not from sobject's Total amount field ParentInvoice.Total_Amount__c = TotalAmount.get(ParentInvoice.Id) + currentInvoiceItem.Amount__c; } else { // We haven't saved total amount in map yet. // Add current invoice line item amount to total amount of invoice object. ParentInvoice.Total_Amount__c += currentInvoiceItem.Amount__c; } // save updated total amount of invoice object in map TotalAmount.put(ParentInvoice.Id, ParentInvoice.Total_Amount__c );
// iterate UniqueInvoiceToUpdate map to put those invoice objects in list. for (Invoice__c I : UniqueInvoiceToUpdate.values()){ InvoiceToUpdate.add(I); }
// update list. update InvoiceToUpdate; } Any better solution?
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Check this post for code and PPT for this session www.apexhours.com/demystifying-apex-triggers/
This is the best channel for salesforce, u guys are doing a great job. Thanks to the whole team
Thanks
This is simply the best channel to learn Apex programming. Hats off to the Apex Hours Team for sharing your knowledge with us.
Keep watching and share the words.
This channel is a hidden gem for all sf seekers.. Luv you guys :)
Thank you so much. Help us to spread the words
@@apexhours Probably shared this about 5 times in my company for SF APEX training :D
Assignment Answer :
trigger TotalPrice on Invoice_Line_Item__c (after insert) {
if(Trigger.isAfter && Trigger.isInsert){
Set inVoiceSet = new Set();
Map invoicesToBeUpdated = new Map ();
for(Invoice_Line_Item__c c: Trigger.new){
inVoiceSet.add(c.Invoice_Lookup);
}
Map invoiceMap = new Map([SELECT Id,Name,Total_Price__c FROM Invoice__c WHERE Id IN :inVoiceSet]);
for(Invoice_Line_Item__c c : Trigger.new){
if(!invoicesToBeUpdated.containsKey(c.Invoice_Lookup)){
Invoice__c a = invoiceMap.get(c.Invoice_Lookup);
a.Total_Price__c = a.Total_Price__c + c.price__c;
invoicesToBeUpdated.put(a.id, a);
}
else {
Invoice__c a = invoicesToBeUpdated.get(c.Invoice_Lookup);
a.Total_Price__c = a.Total_Price__c + c.price__c;
invoicesToBeUpdated.put(a.id, a);
}
}
List invoicesToBeUpdatedList = new List();
for(Id invoiceId : invoicesToBeUpdated.keySet()){
invoicesToBeUpdatedList.add(invoicesToBeUpdated.get(invoiceId));
}
if(invoicesToBeUpdatedList.size()>0)
update invoicesToBeUpdated;
}
}
Hope you find this helpful.. ;)
Thanks
copy-pasta
This video was not much basic. complexity escalated quickly....For the first time teacher in your videos kinda assumed that we would be knowing some statements in the code already which was not true...
Thanks for your feedback, We will take care in future
you cannot expect that a free on-line course is going to explain every sentence and operator. Read the documentation, just search the statement you are not familiar with.
I have written a before trigger to update the contact description on contact creation as well as wrote a workflow for the same but what I have observed it is updating record from worklows not from trigger but according to the order of execution it should update the record from trigger right??
so @39:47 if we would have trigger event as before update then will the recursion not happen, its a bit confusing, so when you added a recursive check then also the trigger will be called after creating an account @41:46 am i right and it will try to insert again? Please can you clear this doubt.
Best channel ever to learn Salesforce, using daily during the last months. Great Job!!!
Great to hear! Keep watching
Sir any suggestions which trigger scenarios are asked most of the times for fresher? Please suggest few so that i can practice them before the interview
At 42:03, shouldn't it be Trigger.isBefore in if condition because we need to check before inserting records right?
Thanks for the video,very helpful
Keep watching
Hi team..I am thorough follower of this channel..but sorry just because of work not able to attend live sessions..not sure if I missed 17,18 and 19 uploads..hope they will come soon..
We will upload all session one by one. Check blog post for more detail www.apexhours.com/apex-hours-for-students-developer-program/
I have completed day 5 of APEX training :D
37:30 couldn't you have multiple triggers, it's just that they can't be in the same execution stage. Like one for before and one for after?
You are doing a great job guys!
I have one question. When you say I should use Triggers for Integration with External Sys. You mean in every case? For example why I shouldn't use outbound message working as a trigger to send an event to an endpoint?
Its depend on requirement to requirement. you can use outbound message as well. Some demo are only to teach you
nice and clear explanation. thanks
Glad it was helpful!
very helpful session and presented excellently
Glad you think so!
Hello there, I have clarification on assignment -
i)create custom object invoice with field total amount
ii)create child object invoice line item with lookup relationship to invoice
iii)add price field into invoice line item
I have created 'invoice' object and field 'total amount'
now how to create lookup relation on child object
I'm confused whether we can create relationship on object, it can be created on fields only as I know or maybe something I don't know on this.
can anyone plz guide.
The code presented at 41:19 on avoiding recursion has a logical inconsistency. The TestTrigger is set to run before insert, but the condition in the trigger body checks for Trigger.isAfter. This condition would never return true because the trigger itself only runs in the before context.
Excellent recommended this video to many guys ...my question is what is the future of sfdc in coming years ...thanks for your answer :)
Thanks. SFDC is future
At 23:23 Why we have used only 'new' context variable for new value and 'oldMap' for the previous value . Instead could we have used 'old' context variable .
You can use base on requirement. We used only for demo
In Order of Execution System Validations run before "Before Triggers" but in the video it is in reverse. Please let me which one is first either before triggers or system validations.
Check this for more information th-cam.com/video/6CQk2BOVGcI/w-d-xo.html
@@apexhours Okay, Thank you
hi sir ,
I wrote the ContactEmailTrigger but not got any Email. can you help me sir
so the order of execution is before trigger, validation, after trigger, assignment rules , workflow rules and the commit to database . Is this correct?
Check this post www.apexhours.com/become-an-order-of-execution-hero/
Salesforce Apex Hours thank you
Keep watching and share with your friends
Is this playlist enough for Platform Developer 1 certification preparation ?
It will help you to clear the exam
Thank you
You're welcome
At 42:44, recursion example is not solved. It is still in recursion. Video is
Edited after 42:44
There is always one part of all their videos that leaves me frustrated tbh. This part was not well explained at all indeed, very disappointed!
thanks alot
Keep watching
Can't find these 2 topics in Trailhead can you please share the link?
link are available on ApexHours website
Hey man, If you got the links please provide here, I am also not able to find those two trailhead links on trailhead.
@@apexhours Hi, Couldn't find links for those two trails on the website given in the description of this video. Can you please provide the link here if possible ? It will be huge help. Thanks. : )
Can someone please help me to create a trigger that prevents duplicate account name and rating
Please start from your self and post your code here. We will help you
Day5Assignment - th-cam.com/play/PLbpC6QDcJ6nHbQDEVhYCJ_d4zvFH88Vk7.html " Assignment was Little Bit Tricky Hope i Covered all the Cases "
All the best
sir plz make video or guidance on projects i have complted admin and development parts ... sir plz make video on projects i need job.... i love apex hours.
As soon as possible
My SOlution to the challenge
trigger InvoiceLineItemTrigger on Invoice_Line_Item__c (after insert,after update) {
//Update the SumofInvoiceItems field in Invoice object with sum of prices of its related Inv Line Items
//Get Invoice related to Invoice Line items
Set invoiceIds = new Set();
for(Invoice_Line_Item__c lineItem: Trigger.new){//IL1->I1, IL2->I1, IL3->I2, IL4-I2,IL5-I3,IL6-I4
invoiceIds.add(lineItem.Invoice__c);
}
System.debug('Invoice Ids'+invoiceIds);
List invoiceList = [SELECT id,Sum_of_Invoice_Line_Items__c,(SELECT id, Price__c from InvoiceLineItems__r) from Invoice__c WHERE ID IN: invoiceIds];
system.debug('invoiceList'+invoiceList);
for(Invoice__c inv: invoiceList){
List invoiceLineItemList = inv.InvoiceLineItems__r;//(I1-(IL1,IL2))
Decimal sum = 0;
for(Invoice_Line_Item__c ilv: invoiceLineItemList){//(IL1-Null,IL2-200)
if(ilv.Price__c!=NULL){
sum+=ilv.Price__c;
}
}
system.debug(sum);
inv.Sum_of_Invoice_Line_Items__c = sum;
system.debug('Sum_of_Invoice_Line_Items__c'+inv.Sum_of_Invoice_Line_Items__c);
}
update invoiceList;
}
This looks like an easier approach
Sir my trigger is not working @34.16
What error you are getting
@@apexhours For me also it is not working. There is no error but when I check the log, the value getting for 'for loop' is null.
sir plz provide more assignment for exercise.
Soon
thanks for the video...definately its a good channel for salesforce development preraration..but in this video you are not given much more knowledge about apex triggers..in this video you only explained about the question what is trigger....but actually you didnt get more examples of trigger and not explained examples as well as clearly.
We will create more content on Trigger soon
36:59
Keep watching
This video is not that good please repeat this session if possible. Thank you
This was the worst session among the others... the guy has no idea... just copy pasting codes, and exclaiming "Yup, executed" without explaining anything. Of course it will execute, you have copy-pasted a done and tested code. The English is the worst, and it was a challenge to understand what he is saying.
Sorry about that. I hope you will enjoy other sessions.
what else there is to explain?. The trigger sent a mail. He said the trigger will send an email and showed that it did. If there is a statement you dont understand, search for it on the documentation. And "just copy and pasting" thats like 99% of on-line courses. Thank god they don't write code live so we don't have to deal with dumb bugs and typos
My solution for assignment.
trigger TotalInvoiceAmount on Invoice_Line_Item__c (after insert) {
Map UniqueInvoiceToUpdate = new map(); // To maintain unique sobject to be updated
Map TotalAMount = new Map(); // To maintain the updated amount of each invoice sobject
ListInvoiceToUpdate = new List(); // final list to perform dml update operation
Invoice__c ParentInvoice;
for (Invoice_Line_Item__c currentInvoiceItem : Trigger.New) {
ParentInvoice = [select id, Total_Amount__c from Invoice__c where Id = :currentInvoiceItem.Invoice__c LIMIT 1][0];
// Check if we have updated total value of invoice in previous iterations:
if (TotalAmount.get(ParentInvoice.Id) != null) {
// if yes, add the current amount of invoice line item to the previous updated invoice object.
// Not that, we have not commit to database yet. Hence we are retrieving updated amount from map and not from sobject's Total amount field
ParentInvoice.Total_Amount__c = TotalAmount.get(ParentInvoice.Id) + currentInvoiceItem.Amount__c;
}
else {
// We haven't saved total amount in map yet.
// Add current invoice line item amount to total amount of invoice object.
ParentInvoice.Total_Amount__c += currentInvoiceItem.Amount__c;
}
// save updated total amount of invoice object in map
TotalAmount.put(ParentInvoice.Id, ParentInvoice.Total_Amount__c );
// update invoice object's map.
UniqueInvoiceToUpdate.put(ParentInvoice.Id, ParentInvoice);
}
// iterate UniqueInvoiceToUpdate map to put those invoice objects in list.
for (Invoice__c I : UniqueInvoiceToUpdate.values()){
InvoiceToUpdate.add(I);
}
// update list.
update InvoiceToUpdate;
}
Any better solution?
Keep it up
This was the worst session among the others
We are sorry about that. I hope you will enjoy the other sessions.
Kya hi ghatiya padhaya hai....
I hope you will enjoy our other sessions.