JavaScript onDelete Function Example 2: Checking Multiple Conditions

This example expands the query detailed in "JavaScript onDelete Function Example 1: Checking a Single Condition" by showing how to prevent open activities from being deleted if the parent (Account) is a customer. In this case, deleting records that are open for prospects is allowed, but not for customers. The following assumptions are made in this example:

The status is stored in the field CUSTKW02.
The status value that is being checked is Open.
The parent (Account) module ID is 2.
The Account Type field in the parent is ACCTKW01.
The value that is being checked in Account Type is Customer.

An example of a complete onDelete query, which checks multiple conditions, is as follows:

<html><head><title>OnDeleteExample2</title>
<script type="text/javascript"> 
function fieldsOnDelete(){ return "CALTYPE,1.ACCTKW01";}
function onDelete(Type,AccountType){
	if( Type == 'Call' && AccountType == 'Prospect' ){
		window.location = "MELT://showAlert/ You cannot delete open Call Activities from Prospect Accounts";
		return false;
	}else{
		return true;
	}
}
</script></head><body></body></html>

where:

function fieldsOnDelete(){ return "CALTYPE"; } is enhanced to include a second field to check for. A comma is inserted first to indicate another field, and as that field is in a parent module, the Module ID of the parent object must be included with a period symbol (.) separating the module ID and field name. The code in onDelete example 2 is as follows:

function fieldsOnDelete(){ return "CALTYPE,1.ACCTKW01"; }

A name is given to the second fields so function onDelete(status) is enhanced to include the second field called accttype. The code in onDelete example 2 is as follows:

onDelete(Type,AccountType)

if( Type == 'Call') is enhanced to include the second parameter (does AccountType include Prospect?). A double ampersand (&&) after the first line separates the two parameters. The code in onDelete example 2 is as follows:

if( Type == 'Call' && AccountType == 'Prospect')

The message changes from You cannot delete open Activities in onDelete example 1 to You cannot delete open Activities from Customer Accounts in onDelete example 2.