Wednesday, January 25, 2017

Insert Multiple Parent and Child Records with External Id

Insert Multiple Parent and Child Records with External Id


I was referring this "Creating Parent and Child Records in a Single Statement Using Foreign Keys" page and thought, what if I get a requirement to insert multiple parents and child records in a single insert statement.
I have prepared a code snippet to insert multiple Account and Contact records in a single statement.
I have also created External Id at Account object to create reference from Contact record.

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List<SObject> lstAccount = new List<SObject>(); 
//holds list of Contact
List<SObject> lstContacts = new List<SObject>(); 
//final list for insertion
SObject[] sobjList = new List<SObject>(); 
String strInsertError = '';

//holds accountId and External Id in a Map
Map<String,String> accountContactMap = new Map<String,String>();
 
//loop through the salesProductsMap and create Sales Asset
for(Integer i=0;i<5;i++)
{
  Account accountObj = new Account(); 
 //generate random number and use that as External Id
  accountObj.External_Id__c =String.ValueOf(Integer.valueOf(math.rint(math.random()*1000000))); 
  accountObj.Name = 'ACCT_NM' + String.valueOf(i);
  accountContactMap.put(accountObj.Name,accountObj.External_Id__c);
  
  //finally add object to the list
  lstAccount.add(accountObj);
}
 
//loop through to create Contact record
for(Integer i=0;i<5;i++)
{
  Contact contactObj = new Contact(); 
  contactObj.LastName = 'CONT_NM' + String.valueOf(i); 
  // Create the parent reference.
  //check the Account Name in the map and retrieve the External Id from map
  if(accountContactMap.containsKey('ACCT_NM' + String.valueOf(i)))
  {
   Account conReference = new Account(
   External_Id__c =accountContactMap.get('ACCT_NM' + String.valueOf(i))); 
   contactObj.Account = conReference; 
  }  
  lstContacts.add(contactObj); 
} 
//add account and contact list
sobjList.addAll(lstAccount);
sobjList.addAll(lstContacts);

// Create the Account and the Contact in single DML.
Database.SaveResult[] results = Database.insert(sobjList);
// Check results.
for (Integer i = 0; i < results.size(); i++) {
  if (results[i].isSuccess()) 
  {
  System.debug('Successfully created ID: ' + results[i].getId());
  } 
  else 
  {
   System.debug('Error: could not create sobject ' + 'for array element ' + i + '.');
   strInsertError = 'The error reported was: ' + results[i].getErrors()[0].getMessage() + '\n';
   System.debug(strInsertError);
  }
} 
System.debug('strInsertError=' + strInsertError);

Results

Querying the newly created account and contact will display the results like this:
Under each account record, there will be a contact record.
4_MultipleRecordsInsertExternal Id_PIC1

3 comments:

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  2. Child records are not inserting...

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