changedFrom()

Signature

changedFrom() — returns string

Available in: model Category: Change Functions

Description

Returns the previous value of a property that has changed. Returns an empty string if no previous value exists. CFWheels will keep a note of the previous property value until the object is saved to the database.

Parameters

Name	Type	Required	Default	Description
property	string	yes	—	Name of property to get the previous value for.

Examples

// Get a member object and change the `email` property on it
member = model("member").findByKey(params.memberId);
member.email = params.newEmail;

// Get the previous value (what the `email` property was before it was changed)
oldValue = member.changedFrom("email");

// The above can also be done using a dynamic function like this
oldValue = member.emailChangedFrom();