We already have the function deep clone to clone the fields. It has been done via SOQL query(i.e selected fields only cloned).
We need a dynamic clone of the objects without querying the field. Please refer the below
public class DynamicClone {
public static List<sObject> cloneObjects(List<sObject> sObjects,
Schema.SObjectType objectType){
// A list of IDs representing the objects to clone
List<Id> sObjectIds = new List<Id>{};
// A list of fields for the sObject being cloned
List<String> sObjectFields = new List<String>{};
// A list of new cloned sObjects
List<sObject> clonedSObjects = new List<sObject>{};
// Get all the fields from the selected object type using
// the get describe method on the object type.
if(objectType != null){
sObjectFields.addAll(
objectType.getDescribe().fields.getMap().keySet());
}
// If there are no objects sent into the method,
// then return an empty list
if (sObjects != null &&
!sObjects.isEmpty() &&
!sObjectFields.isEmpty()){
// Strip down the objects to just a list of Ids.
for (sObject objectInstance: sObjects){
sObjectIds.add(objectInstance.Id);
}
/* Using the list of sObject IDs and the object type,
we can construct a string based SOQL query
to retrieve the field values of all the objects.*/
String allSObjectFieldsQuery = 'SELECT ' + sObjectFields.get(0);
for (Integer i=1 ; i < sObjectFields.size() ; i++){
allSObjectFieldsQuery += ', ' + sObjectFields.get(i);
}
allSObjectFieldsQuery+='FROM'+objectType.getDescribe().getName()+
'WHERE ID IN (\''+sObjectIds.get(0)+
'\'';
for (Integer i=1 ; i < sObjectIds.size() ; i++){
allSObjectFieldsQuery += ', \'' + sObjectIds.get(i) + '\'';
}
allSObjectFieldsQuery += ')';
try{
// Execute the query. For every result returned,
// use the clone method on the generic sObject
// and add to the collection of cloned objects
for (SObject sObjectFromDatabase:
Database.query(allSObjectFieldsQuery)){
clonedSObjects.add(sObjectFromDatabase.clone(false,true));
}
} catch (exception e){
// Write exception capture method
// relevant to your organisation.
// Debug message, Apex page message or
// generated email are all recommended options.
}
}
// return the cloned sObject collection.
return clonedSObjects;
}
}
An example of how you would call this method to clone an Opportunity object from another Apex controller is:
Account ExisitingOpportunity= [select Id from Opportunity where
id=:ApexPages.currentPage().getParameters().get('id')]; sObject originalSObject = (sObject)ExisitingOpportunity; List<sObject> originalSObjects = new List<sObject>{originalSObject}; List<sObject> clonedSObjects =DynamicClone .cloneObjects( originalSobjects, originalSobject.getsObjectType()); Opportunity clonedOpportunity = (Opportunity)clonedSObjects.get(0);
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