`validateOnUpdate()`

Description

Registers method(s) that should be called to validate existing objects before they are updated.

Function Syntax

validateOnUpdate([ methods, condition, unless ])

Parameters

Parameter	Type	Required	Description
`methods`	`string`	No	Method name or list of method names to call. (Can also be called with the `method` argument.)
`condition`	`string`	No	String expression to be evaluated that decides if validation will be run (if the expression returns `true` validation will run).
`unless`	`string`	No	String expression to be evaluated that decides if validation will be run (if the expression returns `false` validation will run).

Examples

<cffunction name="init">
    <!--- Register the `check` method below to be called to validate existing objects before they are updated --->
    <cfset validateOnUpdate("checkPhoneNumber")>
</cffunction>

<cffunction name="checkPhoneNumber">
    <!--- Make sure area code is `614` --->
    <cfreturn Left(this.phoneNumber, 3) is "614">
</cffunction>