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Salesforce, Apex

Cloning dynamic in Apex


public with sharing class Utils{ 
 
    // Returns a dynamic SOQL statement for the whole object, includes only creatable fields since we will be inserting a cloned result of this query
    public static string getCreatableFieldsSOQL(String objectName, String whereClause){
         
        String selects = '';
         
        if (whereClause == null || whereClause == ''){ return null; }
         
        // Get a map of field name and field token
        Map<String, Schema.SObjectField> fMap = Schema.getGlobalDescribe().get(objectName.toLowerCase()).getDescribe().Fields.getMap();
        list<string> selectFields = new list<string>();
         
        if (fMap != null){
            for (Schema.SObjectField ft : fMap.values()){ // loop through all field tokens (ft)
                Schema.DescribeFieldResult fd = ft.getDescribe(); // describe each field (fd)
                if (fd.isCreateable()){ // field is creatable
                    selectFields.add(fd.getName());
                }
            }
        }
         
        if (!selectFields.isEmpty()){
            for (string s:selectFields){
                selects += s + ',';
            }
            if (selects.endsWith(',')){selects = selects.substring(0,selects.lastIndexOf(','));}
             
        }
         
        return 'SELECT ' + selects + ' FROM ' + objectName + ' WHERE ' + whereClause;
         
    }
 
}
/* query lead and then clone it */
String soql = Utils.getCreatableFieldsSOQL('lead','id=\'00Q3000000aKwVN\'');
lead l = (Lead)Database.query(soql);
lead l2 = l.clone(false, true);
insert l2;

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