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How to create unique contacts in Salesforce depending on the value of number of location field in account object?
I have created a trigger on account object and want to insert or update number of contacts depending on the value of number of location field in Account Object.
While using List<Contacts> it’s working and gives list of contacts with same name.
But i want to use Set<Contact> to get unique contacts????
#trigger
trigger numberOfLocations on Account (after insert, After Update) {
Set<contact> listContact = new Set<contact>();//When I replace Set<Contact> With List<Contact> it’s working and gives the list of contacts which is not unique.
map<id,decimal> mapAcc=new map<id,decimal>();
for(Account acc:trigger.new){
mapAcc.put(acc.id,acc.NumberofLocations__c);
}
if(mapAcc.size()>0 && mapAcc!=null){
for(Id accId:mapAcc.keyset()){
for(integer i=0;i<mapAcc.get(accId);i++){
contact newContact=new contact(AccountId=accId,LastName=’MyContact’);// I don’t want to use ‘MyContact’+i bcz i want to check the functionality of Set<Contact>
listContact.add(newContact);
}
}
}
if(listContact.size()>0 && listContact!=null)
upsert listContact;
}#error
DML requires SObject or SObject list type: Set<Contact>
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This discussion was modified 8 years, 9 months ago by
Shaharyar.
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This discussion was modified 8 years, 9 months ago by Forcetalks.
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This discussion was modified 8 years, 9 months ago by Forcetalks.
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This discussion was modified 8 years, 9 months ago by
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3 Replies
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Hi Shaharyar,
You can’t use Set of Contacts because contact’s records may have same value for LastName field.
For Example :-
Set <Contact> setCon = new Set<Contact>();
Contact con = new Contact(LastName = ‘test’);
Contact con1 = new Contact(LastName = ‘test’);
insert con; insert con1;
setCon.add(con); setCon.add(con1);
‘setCon’ Set will only contain contact ‘con’ as LastName field is same for both sobjects.
And for DML Operation You can use only sobjects or list of sobjects.
Hope this helps.
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Hello Shaharyar
Try this,
trigger numberOfLocations on Account (After Update) {
Set<contact> setContact = new Set<contact>();
map<id,decimal> mapAcc=new map<id,decimal>();
List<Contact> listContact = new List<Contact>();
for(Account acc:trigger.new){
mapAcc.put(acc.id,acc.NumberofLocations__c);
}
if(mapAcc.size()>0 && mapAcc!=null){
for(Id accId:mapAcc.keyset()){
for(integer i=0;i<mapAcc.get(accId);i++){
contact newContact=new contact(AccountId=accId,LastName=’MyContact’);
setContact.add(newContact);
}
}
}
listContact.addAll(setContact);
insert listContact;
System.debug(‘Contact = ‘ + listContact);}
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Hi Shaharyar,
The Set class is not an iterable object type, and cannot participate in several common functions yet, including DML operations. Convert the Set to a List, instead.
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