Salesforce Certified Application Architect

Sunday 15 October 2017

Trigger ParentToChildUpdate in Salesforce

trigger ParentToChildUpdate on Account (after insert,after update) {
   
    set<id>accId=new set<id>();
    List<Contact>ConList=new List<Contact>();
    Map<Id,List<Contact>>Mapcon=new Map<Id,List<Contact>>();
   
    for(Account a:trigger.new){
        accId.add(a.id);
    }
    List<Contact>ListCon=[select id,name,MobilePhone from Contact where AccountId in :accId];
    if(ListCon.size()>0){
        for(Account aa:trigger.new){
            for(Contact c:ListCon){
                if(Mapcon.get(aa.id)==null){
                    Mapcon.put(aa.id,new list<Contact>());
                }
                Mapcon.get(aa.id).add(c);
            }
        }
    }
    List<Account>ListAcc=[Select id,name,Phone from Account where Id in:accId];
    for(Account aaa:ListAcc){
        if(Mapcon.get(aaa.Id)!=null){
            List<Contact>ListCons = Mapcon.get(aaa.Id);
            if(ListCons.size()>0){
                List<Contact>ListConst = Mapcon.get(aaa.Id);
                    for(contact cc:ListConst){
                        cc.MobilePhone=aaa.Phone;
                        ConList.add(cc);
                    }
            }
        }   
    }
    If(ConList.size()>0){
        Update ConList;
    }
}

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