The return type of a SOSL search is List of List of sObjects.
Sample Code:
List<List<SObject>> searchList = [FIND 'map*' IN ALL FIELDS RETURNING Account (Id, Name), Contact, Opportunity, Lead]; Account [] accounts = ((List<Account>)searchList[0]); Contact [] contacts = ((List<Contact>)searchList[1]); Opportunity [] opportunities = ((List<Opportunity>)searchList[2]); Lead [] leads = ((List<Lead>)searchList[3]);
Sample Code:
String defaultCurrencyCode = UserInfo.getDefaultCurrency();
System.debug('DefaultCurrencyCode-' + defaultCurrencyCode);
Sample Code:
boolean isPersonAccount = Schema.SObjectType.Account.fields.getMap().containsKey('isPersonAccount');
system.debug('isPersonAccount-' + isPersonAccount);
Sample Code:
String browserInfo = ApexPages.currentPage().getHeaders().get('User-Agent');
system.debug('Browser Info-' + browserInfo);
Here is a sample Rollup Summary calculation trigger for Lookup relationship. In below example I’m using Account object as parent and Contact object as child.
I’m updating Account object Account record field Number_of_Contacts__c with Count of all related Contact records.
Apex Trigger:
trigger ContactTrigger on Contact (after insert, after update, after delete, after undelete) {
Set<Id> accountIds = new Set<Id>();
if(trigger.isInsert || trigger.isUpdate || trigger.isUndelete){
for(Contact con:trigger.new){
if(con.AccountId != null){
accountIds.add(con.AccountId);
}
}
}
if(trigger.isUpdate || trigger.isDelete){
for(Contact con:trigger.old){
if(con.AccountId != null){
accountIds.add(con.AccountId);
}
}
}
if(!accountIds.isEmpty()){
List<Account> accList = [SELECT Id, Number_of_Contacts__c, (SELECT Id FROM Contacts)
FROM Account WHERE Id IN : accountIds];
if(!accList.isEmpty()){
List<Account> updateAccList = new List<Account>();
for(Account acc:accList){
Account objAcc = new Account(Id = acc.Id, Number_of_Contacts__c = acc.Contacts.size());
updateAccList.add(objAcc);
}
if(!updateAccList.isEmpty()){
update updateAccList;
}
}
}
}