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Class slaesforce Compile Error: Method does not exist or incorrect signature: [Id].size() at line 9 column 43
trigger EmployeeInformationTrigger on Employe_Infrmation__c (before delete) {
Map<Id,Employe_Infrmation__c> naMap = new Map<Id,Employe_Infrmation__c>([SELECT Id,DepartMt__r.Id FROM
Employe_Infrmation__c where Id in:trigger.oldMap.keyset()]);
for(Employe_Infrmation__c se:trigger.old){
if (naMap.get(se.Id).DepartMt__r.Id.size()>0)
se.addError('jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj');
}
Map<Id,Employe_Infrmation__c> naMap = new Map<Id,Employe_Infrmation__c>([SELECT Id,DepartMt__r.Id FROM
Employe_Infrmation__c where Id in:trigger.oldMap.keyset()]);
for(Employe_Infrmation__c se:trigger.old){
if (naMap.get(se.Id).DepartMt__r.Id.size()>0)
se.addError('jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj');
}
so when you pass a Employe_Infrmation__c id in map named as naMap it will return you the object of Employe_Infrmation__c not the list of Employe_Infrmation__c
.size() is a method of list if you want to check for null do this
if (naMap.get(se.Id).DepartMt__r != null)
Also you are doing naMap.get(se.Id) without check that map contains se id or not its not correct so it should be like this
if(naMap.containskey(se.Id))
{
if (naMap.get(se.Id).DepartMt__r != null)
}
thanks for given ..but am writing child object field lookup relations ....
my requirement is i want to deletd tha child object i wonte be deleted ......some valiadation trigger will appear..
can you please explane ot bit more it will be more helpfull i belive
You want to delete a child record
say there is a record A1 which have 3 child B1 B2 and B3
so in want case or condtion you want the chields to be deleted
set<string> gh=new set<string>();
for(Employe_Infrmation__c hh:trigger.new){
if(trigger.IsInsert||(trigger.IsUpdate && hh.Name!=trigger.oldMap.get(hh.Id).Name))
gh.add(hh.Name);
}
set<string> jh =new set <string>();
for(Employe_Infrmation__c hh:[select Name from Employe_Infrmation__c where Name in:gh]){
jh.add(hh.Name);
}
for(Employe_Infrmation__c hh:trigger.new){
if(trigger.IsInsert||(trigger.IsUpdate && hh.Name!=trigger.oldMap.get(hh.Id).Name)){
if(jh.contains(hh.Name))
hh.adderror('Duplicate values');
}
}
}
public static Decimal FahrenheitToCelsius(Decimal fh){
Decimal cs = (fh - 32) * 5/9;
system.debug('cs;+cs');
return cs.setScale(2);
}
}
I am beginner and I am trying this to execute. I got this code from some forum, but when I am trying to execute it says Method does not exist. why