Auto Populate common fields between Objects by using Button in VF Page

Question

My requirement is as follows :- In my ORG i have vf pages for account,Lead and opportunity where as standard pages for Contact and event. I want to per-populate some common fields between object Like in account there is a field called State and the same state field is in opportunity so i have to populate this field every time when i create opportunity . There are ample of such fields in my objects.

I want button facility in each VF page for creating new opportunity, new event , new contact ... can you help me out how to achieve this functionality with a sample code.

Answer 1

If you have a custom page to create Opportunity then it's very easy all you have to do is to fetch State value from Account and to put that in you instance which you are using to create Opportunity like.

public class YourController {
public Opportunity opp {get;set;}
public YourController() {
  List<Account> acc = [Select Id,State__c from Account where Name = 'YOUR ACCOUNT TO FILTER' ];
  String state ;
  if(acc.size() > 0 && acc[0].State__c ! = null)
    state =  acc[0].State__c ;
  opp = new Opportunity(State__c = state) ;
}
}

And then use this instance on your VF page.

Or if you only need that value to show on detail page then you can use Formula field or Workflow to populate that.