valid()

Signature

valid() — returns boolean

Available in: model Category: Error Functions

Description

Runs the validation on the object and returns true if it passes it. Wheels will run the validation process automatically whenever an object is saved to the database, but sometimes it’s useful to be able to run this method to see if the object is valid without saving it to the database.

Parameters

Name	Type	Required	Default	Description
callbacks	boolean	no	true	Set to false to disable callbacks for this method.
validateAssociations	boolean	no	false

Examples

// 1. Check if a new user object passes validation before proceeding
user = model("User").new(params.user);

if (user.valid()) {
    // object passed all validations, safe to proceed
    redirectTo(action="dashboard");
} else {
    renderView(action="new");
}

// 2. Validate without running before/after validation callbacks
user = model("User").new(params.user);

if (user.valid(callbacks=false)) {
    user.save(callbacks=false);
}

// 3. Validate the object and any associated (nested) objects together
order = model("Order").new(params.order);

if (order.valid(validateAssociations=true)) {
    order.save();
} else {
    // errors may include issues from associated line items
    writeOutput(order.errorsAsHTML());
}